Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions
[I] A newborn baby can see, hear and feel. By the age of five, a child can talk, ride a bike and invent imaginary friends. How does this development happen? [II]We don't understand the way language, thinking and planning develop very well. [III]Now scientists are using new technology to ‘see’ into children's brains. And they are discovering new information about the way a baby's brain develops. [IV]
A study in 2010 showed that children who were afforded more focus often gained an edge in IQ. The brain of a newborn infant contains nearly a hundred billion neurons. This number is comparable to that of an adult's brain. As they mature, an infant assimilates information through the sensory modalities of sight, hearing, smell, taste, and touch. This information fosters intricate connections between different regions of the brain. By the age of three, there are approximately a hundred trillion synaptic connections.
One experiment looked at images of babies' brains while they were listening to different sounds. The sounds were in different sequences. For example, one sequence was mu-ba-ba. This is the pattern ‘A-B-B’. Another sequence was mu-ba-ge. This is the pattern ‘A-B-C’. The images showed that the part of the brain responsible for speech was more active during ‘A-B-B’ patterns. This shows that babies can tell the difference between different patterns. This experiment is interesting because sequences of words are important to grammar and meaning. Compare two sentences with the same words in a different order: ‘John killed the bear’ is very different from ‘The bear killed John.’ So babies are starting to learn grammatical rules from the beginning of life.
Researchers also know that babies need to hear a lot of language in order to understand grammar rules. But there is a big difference between listening to television, audiobooks or the internet, and interacting with people. One study compared two groups of nine-month-old American babies. One group watched videos of Mandarin Chinese sounds. In the other group, people spoke the same sounds to the babies. The test results showed that the second group could recognize different sounds, however, the first group learned nothing. The scientist, Patricia Kuhl, said this result was very surprising. It suggests that social experience is essential to successful brain development in babies.
Which of the following best summarizes the passage?
Early experiences and social interaction are critical for brain development in babies
The development of grammar rules begins only after the age of three
Brain imaging technology has little role in understanding child development
Passive media consumption is sufficient for language learning in babies
Hãy suy nghĩ và trả lời câu hỏi trước khi xem đáp án
A. Early experiences and social interaction are critical for brain development in babies: Đúng, tóm tắt chính xác ý chính.
B. The development of grammar rules begins only after the age of three: Sai, trẻ bắt đầu học từ khi sinh ra.
C. Brain imaging technology has little role in understanding child development: Sai, công nghệ đóng vai trò quan trọng.
D. Passive media consumption is sufficient for language learning in babies: Sai, nghe thụ động không hiệu quả.
Bộ đề thi giúp học sinh lớp 12 làm quen với cấu trúc và nội dung đề thi tốt nghiệp THPT môn Tiếng Anh năm 2025. Đề thi được xây dựng theo định hướng của Bộ GD ĐT, bao gồm các phần Ngữ âm, Từ vựng - Ngữ pháp, Chức năng giao tiếp, Kỹ năng đọc hiểu, Kỹ năng viết và Phát âm - Trọng âm. Hệ thống câu hỏi đa dạng, bám sát chương trình học, giúp học sinh rèn luyện kỹ năng làm bài và nâng cao tư duy ngôn ngữ. Đáp án chi tiết đi kèm hỗ trợ học sinh tự ôn tập, đánh giá năng lực và chuẩn bị tốt nhất cho kỳ thi quan trọng.
Câu hỏi liên quan
Read the following leaflet about a new travel platform and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 7 to 12
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Beginners with zero experience in bitcoin or finance
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Those looking for a side hustle or new career (12) __________ with real growth potentialRead the following leaflet and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 7 to 12.
Discover the Digital Portfolio App
Looking for an innovative way to enhance your learning experience? The Digital Portfolio app is here to transform the way you engage with education!
A (7)______of benefits make this app a must-have for students and teachers alike. With its user-friendly interface, it helps users stay organized and track their academic progress effortlessly. One of its standout features is enabling students and teachers to connect by engaging with each (8)______in real-time. Whether it's to give (9) ______on homework or collaborate on group projects, this app bridges the gap in communication.
Teachers can use the app to explain (10) ______clearly with the help of interactive tools, ensuring students grasp even the most complex topics. The app has already (11) ______really well in schools worldwide, proving its effectiveness in modern education. (12) ______ accessibility, the Digital Portfolio app is compatible with multiple devices, ensuring seamless use anywhere, anytime.
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Read the following passage about smart energy and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
SMART ENERGY
The upcoming decades will bring significant changes in energy supply and consumption. As some major oil-producing countries have already reached 'peak oil' and concerns about global warming rise, many nations are prioritizing the transition to a low-carbon economy, which will transform electricity supply and usage. [I] Firstly, there will be an increase in overall demand, as consumers switch from oil and gas to electricity to power their homes and vehicles. [II] Secondly, there will be an increase in power generation, not only in terms of how much is generated, but also how it is generated, as there is growing electricity generation from renewable sources. [III] To meet these challenges, countries are investing in Smart Grid technology. [IV] This system aims to provide the electricity industry with a better understanding of power generation and demand, and to use this information to create a more efficient power network.
Smart meters can be integrated with the internet or telephone networks. This connectivity enables customers to control their appliances from a distance. For instance, individuals can turn devices on or off remotely, providing added convenience. Overall, the system offers significant benefits in managing energy usage. By analyzing real-time data, it allows for better decision-making. This technology not only improves efficiency but also supports cost savings. Ultimately, the integration of smart technology will enhance user experience and system management.
The coming decades will bring significant shifts in energy supply and usage. A problem is the fact that many renewable power generation sources are located in remote areas, such as windy uplands and coastal regions, where there is currently a lack of electrical infrastructure. New infrastructures therefore must be built. Thankfully, with improved smart technology, this can be done more efficiently by reducing the reinforcement or construction costs.
Although Smart Technology is still in its infancy, pilot schemes to promote and test it are already underway. Consumers are currently testing the new smart meters which can be used in their homes to manage electricity use. There are also a number of demonstrations being planned to show how the smart technology could practically work, and trials are in place to test the new electrical infrastructure. It is here where Smart Technology is likely to be promoted first, utilising a range of sustainable power sources, transport solutions and an infrastructure for charging electrically powered vehicles. The infrastructure is already changing fast.
Which of the following best paraphrases the underlined sentence in paragraph 2?
Read the following passage about humanoid robots and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22.
The future of electric vehicles (EVs) is promising, as technological advancements and environmental concerns ___(18)___. As governments worldwide implement stricter emissions regulations and offer incentives for EV adoption, manufacturers are investing heavily in research and development. ___(19)___, resulting in longer ranges and faster charging times. For instance, new solid-state batteries have the potential to enhance energy density and safety, making EVs more practical for everyday use.
Additionally, the rise of autonomous driving technology is set to revolutionize the way we interact with vehicles. Many electric models are now equipped with advanced driver-assistance systems ___(20)___. Furthermore, the Integration of smart technology allows for seamless connectivity, enabling drivers to monitor their vehicle's performance and locate charging Stations through mobile apps.
As charging infrastructure continues to expand, ___(21)___, the convenience of owning an EV is increasing. This transition to electric vehicles not only promises a reduction in carbon emissions but also fosters a cleaner, healthier environment. Overall, ___(22)___ and sustainable transportation.
Read thefollowing passage and mark the letter A, B, C or D on your answer sheet to indicate the option that bestfits each of the numbered blanksfrom 18 to 22.
In today’s digital world, (18) ______ . There are many tools, which have been created to protect people’s data from online threats. One of the most popular tools is encryption, (19) ______. When encryption is used, even if someone tries to steal the information, they cannot read it without the correct key.
Another important security tool is called multi-factor authentication (MFA). In this process, more than one way of verifying identity is needed to log in. For example, (20) ______. This makes it harder for hackers to access accounts. Biometric technology, (21) ______, is also used to keep information secure. This technology relies on personal features that are unique and hard to copy
A virtual private network (VPN) is another tool that is commonly used. When a VPN is turned on, a person’s online activity is hidden, and their data is kept private. With these technologies, people are given better control over their security, (22) ______.
Read the following passage about endangered languages and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questionsfrom 23 to 30.
Technology in Education
[I] Education, as a cornerstone of societal progress, has undergone significant transformations with the advent of technology. While traditional teaching methods relied heavily on direct teacher-student interactions, modern classrooms are now enriched with digital tools and platforms that facilitate an immersive learning experience. [II] However, the integration of technology into education brings both challenges and opportunities, necessitating a balanced approach to ensure equitable and effective learning outcomes for all students. [III]
[IV] One of the most notable benefits of technology in education is the accessibility it offers. Online learning platforms, such as Khan Academy and Coursera, enable learners to access quality education regardless of their geographical location. Additionally, adaptive learning technologies tailor educational content to suit individual students' needs, fostering a more personalized learning experience. Despite these advantages, over-reliance on technology can exacerbate inequalities, as not all students have equal access to devices and high-speed internet. This digital divide remains a pressing issue, particularly in underprivileged communities.
Furthermore, the role of artificial intelligence (AI) in education has gained significant attention. AI-powered tools, such as virtual tutors and automated grading systems, have revolutionized the way students learn and teachers manage classrooms. For instance, chatbots can provide instant feedback to students, while data analytics help educators identify struggling learners and address their needs proactively. Nevertheless, critics argue that such innovations might reduce the importance of human interaction, which is crucial for developing critical thinking and emotional intelligence.
Finally, the effectiveness of technology in education hinges on proper implementation and training. Teachers must be adequately equipped to navigate digital tools and integrate them into their teaching practices. Moreover, fostering digital literacy among students is vital to ensure they can use these resources effectively and responsibly. As education systems worldwide embrace digital transformation, policymakers must prioritize inclusivity, ensuring that technological advancements benefit everyone.
In which paragraph does the writer explore the necessity of digital literacy for students?
Mark the letter A, B, C, or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17
a. Consequently, the use of AI in education not only enhances efficiency but also empowers both teachers and students, equipping them with the tools needed to succeed in a dynamic and technology-driven world.
b. By leveraging AI, educators can analyze large volumes of data to identify individual student needs and develop personalized teaching strategies that cater to diverse learning styles.
c. For instance, intelligent tutoring systems can adapt to each student's progress, providing customized exercises and instant feedback to support effective learning.
d. In today's rapidly evolving educational landscape, the integration of Artificial Intelligence (AI) has become a necessity to enhance both teaching and learning.
e. Moreover, AI-powered tools can streamline administrative tasks such as grading, scheduling, and lesson planning, enabling teachers to dedicate more time to fostering creativity and engagement in the classroom.
Read the following passage about Technology and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks.
In 1994, the UN decided to bring together world leaders for an annual event, known as COP or ‘Conference of Parties’, to discuss climate change. This year’s conference will review what has been achieved and discuss the key goals.
(18) ______. This will require reducing global CO2 emissions by 50 per cent by 2030, and by 2050 achieving a balance between the greenhouse gases released into the atmosphere and those removed from it.
The second goal is to reduce the use of coal, (19) ______. Countries will have to stop building new coal plants and switch to clean sources of energy.
The third goal is to end deforestation. Forests remove CO2 from the atmosphere and slow global warming. But when cut down or burnt,(20)_______. Stopping deforestation is, therefore, an effective solution to climate change.
The last key goal is to reduce methane emissions. Methane, one kind of greenhouse gases, (21) ______. It is responsible for nearly one-third of current warming from human activities. Methane comes from farming activities and landfill waste. (22)_______.
This conference is very important because this is the best last chance we have to slow global warming. World leaders, climate experts, organizations, and national representatives will carefully discuss these goals and agree on how to make global progress on climate change.
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22.
Coming from the Czech word 'robota',(18)______. In 1949, the British inventor William Grey Walter introduced the first machine (19)______. Ten years later, the first industrial robotic arm was installed at a General Motors plant in the US. Such robots are mostly used in car and computer industries.
The first robot to use Artificial Intelligence was known as Shakey. (20)______. Shakey could observe its surroundings, create a plan, and find its way across a room or push a box along the floor. Twenty years later, a walking robot called Dante, which was capable of climbing steep slopes, (21)______. The late 1990s marked a milestone in the history of robots when Kismet, a robotic head designed to provoke and react to emotions, was created.
Since the beginning of the 21st century, more robots have been created to improve our life. The first self-driving car was launched on 8 October 2005 when a Volkswagen Touareg named "Stanley' won a racing competition across the desert. In 2012, the AI expert Geoffrey Hinton and his team created the first accurate visual recognition system.
(22) ______. She can imitate human gestures and facial expressions and is able to answer certain questions and to make simple conversations.
Read the following asvertisment and mark the leeter A, B, C and D on your answer sheer to indeicate the option that best fit each of the numbered blanks from 1 to 6.
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Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
SMART ENERGY
The coming decades will bring significant changes in energy supply and consumption. With concerns about global warming and diminishing oil reserves, nations are shifting toward low-carbon economies, prompting major changes in electricity supply and usage. Firstly, electricity demand will increase as consumers transition from oil and gas to electricity for homes and vehicles. Secondly, power generation will rise, focusing on renewable sources. To tackle these challenges, countries are investing in Smart Grid technology, which aims to optimize the electricity network by understanding power generation and demand, thereby improving efficiency.
(I)Smart Grid technology integrates computer systems with electricity networks. (II)These systems gather data on supply and demand, enhancing engineers’ management capabilities. (III)This leads to better energy utilization, reduced fuel needs, and lower carbon emissions. Additionally, operational and maintenance costs are minimized. For consumers, smart technology provides real-time data on energy usage and variable tariffs, encouraging energy use during off-peak hours to reduce costs. For instance, appliances like washing machines can be run at night. Smart meters connected to the Internet or phone networks allow remote control of appliances. (IV)
However, challenges accompany these advancements. Managing supply and demand is difficult with renewable energy sources like wind, solar, and wave power, which are unpredictable. Unlike oil and gas, these sources cannot easily meet peak demands, risking blackouts or system failures. Solutions include improving energy storage and promoting off-peak electricity use. Another issue is the remote location of many renewable energy sources, such as coastal and upland areas, which often lack infrastructure. Building new networks is necessary, though smart technology can reduce costs through efficient planning.
Smart Technology is still in development, with pilot projects testing its feasibility. Consumers are experimenting with smart meters to manage their home electricity use, and trials are underway for new infrastructure. Implementation will likely occur in phases, starting with simple methods to achieve quick carbon savings before advancing to more complex systems. Urban areas, with their high energy demand, are the primary focus for initial investments. Cities will adopt sustainable power solutions, transportation systems, and electric vehicle charging networks. By 2050, these innovations will go a long way toward revolutionizing energy supply, transforming homes, transportation, and lifestyles.
According to the passage, which of the following statements is TRUE?
Read the passage and decide whether the following statements are True (T), False (F) or Not given (NG).
EDUCATION IN THE FUTURE
Education is another area of social life in which information technology is changing the way we communicate. Today's college students may not simply sit in a lecture or a library to learn about their field. Through their computers and the wonders of virtual reality they can participate in lifelike simulated experiences. Consider the following scenario of the future of education made possible through developments in information technology. For children over the age of 10, daily attendance at schools is not compulsory. Some of the older children attend school only once or twice weekly to get tutorial support or instruction from a teacher. For the most part, pupils are encouraged to work online from home. Students must complete a minimum number of study hours per year; however, they may make up these hours by studying at home at times that suit their family schedule. They can log on early or late in the day and even join live classes in other countries. In order to ensure that each student is learning adequately, computer software will automatically monitor the number of hours a week each student studies on-line as well as that students' learning materials and assessment activities. Reports will be available for parents and teachers. The software can then identify the best learning activities and condition for each individual student and generate similar activities. It can also identify areas of weak achievement and produce special programs adjusted to the students' needs.
Children over 10 years old must attend school every day.
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22.
Coming from the Czech word 'robota',(18)______. In 1949, the British inventor William Grey Walter introduced the first machine (19)______. Ten years later, the first industrial robotic arm was installed at a General Motors plant in the US. Such robots are mostly used in car and computer industries.
The first robot to use Artificial Intelligence was known as Shakey. (20)______. Shakey could observe its surroundings, create a plan, and find its way across a room or push a box along the floor. Twenty years later, a walking robot called Dante, which was capable of climbing steep slopes, (21)______. The late 1990s marked a milestone in the history of robots when Kismet, a robotic head designed to provoke and react to emotions, was created.
Since the beginning of the 21st century, more robots have been created to improve our life. The first self-driving car was launched on 8 October 2005 when a Volkswagen Touareg named "Stanley' won a racing competition across the desert. In 2012, the AI expert Geoffrey Hinton and his team created the first accurate visual recognition system.
(22) ______. She can imitate human gestures and facial expressions and is able to answer certain questions and to make simple conversations.
Read the following passage and choose the option that best fits each of the numbered blanks from 18 to 22.
Adult education is an important way for people to improve their skills, advance their careers, and keep learning throughout their lives. Unlike traditional education, which focuses on younger students, (18) __________. It provides flexible learning opportunities that meet the needs of adults who want to gain new knowledge or qualifications.
One of the main benefits of adult education is (19) __________. As industries change and new technologies appear, workers may need to update their skills constantly. Adult education programs, such as job training, certification courses, and online classes, help people stay competitive and learn the skills needed for their jobs. (20) __________.
Adult education also helps with personal development. Many adults go back to school to learn about new topics or hobbies, improve their language skills, or learn about different cultures. Learning new things helps adults keep their minds active and continue growing in different areas of life.
Moreover, adult education helps people feel more included in society. For many adults, returning to education provides a sense of achievement and confidence. It helps them break through social barriers, especially for those (21) __________.
In conclusion, adult education is an important part of lifelong learning. It gives people the chance to keep growing, both personally and professionally. With its flexibility and variety, (22) __________.
Read the passage and decide whether the following statements are True (T), False (F) or Not given (NG).
EDUCATION IN THE FUTURE
Education is another area of social life in which information technology is changing the way we communicate. Today's college students may not simply sit in a lecture or a library to learn about their field. Through their computers and the wonders of virtual reality they can participate in lifelike simulated experiences. Consider the following scenario of the future of education made possible through developments in information technology. For children over the age of 10, daily attendance at schools is not compulsory. Some of the older children attend school only once or twice weekly to get tutorial support or instruction from a teacher. For the most part, pupils are encouraged to work online from home. Students must complete a minimum number of study hours per year; however, they may make up these hours by studying at home at times that suit their family schedule. They can log on early or late in the day and even join live classes in other countries. In order to ensure that each student is learning adequately, computer software will automatically monitor the number of hours a week each student studies on-line as well as that students' learning materials and assessment activities. Reports will be available for parents and teachers. The software can then identify the best learning activities and condition for each individual student and generate similar activities. It can also identify areas of weak achievement and produce special programs adjusted to the students' needs.
Virtual reality technology allows students to take part in lifelike simulated experiences.
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the option that bestfits each of the numbered blanks from 18 to 22.
The development of humanoid robots has captured the imagination of many. Apollo, a highly advanced robot designed for social interaction, (18)____________. Apollo made her first public appearance in 2020, showcasing her ability to converse and express emotions. Since then, (19)____________.
Apollo was developed by a team of engineers and psychologists (20)____________. This collaboration aimed to create a robot that could effectively understand and respond to human emotions, making her a unique presence in the field of artificial intelligence. Apollo's design is sleek and modern, designed to be visually appealing while functional. His facial expressions and gestures are crafted to resemble those of a human, enhancing her ability to connect with people on a deeper level.
Equipped with advanced speech recognition technology, (21)____________. This allows him to engage in meaningful conversations and adapt her responses based on the emotional tone of the discussion.
As humanoid robots like Apollo become more integrated into society, (22) ____________. They hold the potential to transform the way we interact with technology and each other.
Read the following advertisement and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 1 to 6.
Discover the Future of Tech with SmartGadgets
• Experience (1)___________like never before with our smartphones that redefine connectivity.
• Our (2)_____________ will enhance your daily life and keep you ahead of the curve.
• Join thousands of customers (3)________with their purchases and enjoy unparalleled performance.
• Show the features (4)_________ your customers that truly set you apart from the competition.
• Don’t miss out on this (5)_______-in-a-lifetime opportunity to upgrade your tech.
• Start (6)_________the benefits of advanced technology today, or wait for the future to catch up!
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Read the following passage about humanoid robots and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22.
Humanoid robots, eminent characters in science fiction novels and sci-fi films, are becoming a reality. Sophia, as an example, (18) ______________. One month later, she had her premiere in Texas, USA, and has made multiple public appearances around the world since then. At one such event, Sophia was granted Saudi Arabian citizenship in October 2017 and even became the first Innovation Champion of the United Nations Development Programme later that year. During Sophia's trip to Vietnam in 2018, she addressed the Industry 4.0 Summit and Expo.
Sophia the Robot is the latest humanlike robot created by a Hong Kong-based company (19) ______________. Undoubtedly, Sophia together with other humanlike robots represents the rapid advancement in the field of robotics and artificial intelligence. (20) ______________.
Sophia's physical appearance is inspired by both the famous actress Audrey Hepburn and the creator's wife. (21) ______________. But what makes her more lifelike than other robots is the patented artificial skin called Frubber®, which has the feel and flexibility of human skin.
Sophia amazes the world with her ability to communicate naturally. The Sophia Intelligence Collective, which is a combination of Al and human input, and other sophisticated perception techniques enable Sophia to recognise human faces and identify human emotions and gestures. Equipped with machine learning algorithms, (22) ______________.
(Adapted from Friends Global)
Question 20: (20) ______________.
Read the following passage about smart energy and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
SMART ENERGY
The upcoming decades will bring significant changes in energy supply and consumption. As some major oil-producing countries have already reached 'peak oil' and concerns about global warming rise, many nations are prioritizing the transition to a low-carbon economy, which will transform electricity supply and usage. [I] Firstly, there will be an increase in overall demand, as consumers switch from oil and gas to electricity to power their homes and vehicles. [II] Secondly, there will be an increase in power generation, not only in terms of how much is generated, but also how it is generated, as there is growing electricity generation from renewable sources. [III] To meet these challenges, countries are investing in Smart Grid technology. [IV] This system aims to provide the electricity industry with a better understanding of power generation and demand, and to use this information to create a more efficient power network.
Smart meters can be integrated with the internet or telephone networks. This connectivity enables customers to control their appliances from a distance. For instance, individuals can turn devices on or off remotely, providing added convenience. Overall, the system offers significant benefits in managing energy usage. By analyzing real-time data, it allows for better decision-making. This technology not only improves efficiency but also supports cost savings. Ultimately, the integration of smart technology will enhance user experience and system management.
The coming decades will bring significant shifts in energy supply and usage. A problem is the fact that many renewable power generation sources are located in remote areas, such as windy uplands and coastal regions, where there is currently a lack of electrical infrastructure. New infrastructures therefore must be built. Thankfully, with improved smart technology, this can be done more efficiently by reducing the reinforcement or construction costs.
Although Smart Technology is still in its infancy, pilot schemes to promote and test it are already underway. Consumers are currently testing the new smart meters which can be used in their homes to manage electricity use. There are also a number of demonstrations being planned to show how the smart technology could practically work, and trials are in place to test the new electrical infrastructure. It is here where Smart Technology is likely to be promoted first, utilising a range of sustainable power sources, transport solutions and an infrastructure for charging electrically powered vehicles. The infrastructure is already changing fast.
What is the main idea of the final paragraph?
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
SMART ENERGY
The coming decades will bring significant changes in energy supply and consumption. With concerns about global warming and diminishing oil reserves, nations are shifting toward low-carbon economies, prompting major changes in electricity supply and usage. Firstly, electricity demand will increase as consumers transition from oil and gas to electricity for homes and vehicles. Secondly, power generation will rise, focusing on renewable sources. To tackle these challenges, countries are investing in Smart Grid technology, which aims to optimize the electricity network by understanding power generation and demand, thereby improving efficiency.
(I)Smart Grid technology integrates computer systems with electricity networks. (II)These systems gather data on supply and demand, enhancing engineers’ management capabilities. (III)This leads to better energy utilization, reduced fuel needs, and lower carbon emissions. Additionally, operational and maintenance costs are minimized. For consumers, smart technology provides real-time data on energy usage and variable tariffs, encouraging energy use during off-peak hours to reduce costs. For instance, appliances like washing machines can be run at night. Smart meters connected to the Internet or phone networks allow remote control of appliances. (IV)
However, challenges accompany these advancements. Managing supply and demand is difficult with renewable energy sources like wind, solar, and wave power, which are unpredictable. Unlike oil and gas, these sources cannot easily meet peak demands, risking blackouts or system failures. Solutions include improving energy storage and promoting off-peak electricity use. Another issue is the remote location of many renewable energy sources, such as coastal and upland areas, which often lack infrastructure. Building new networks is necessary, though smart technology can reduce costs through efficient planning.
Smart Technology is still in development, with pilot projects testing its feasibility. Consumers are experimenting with smart meters to manage their home electricity use, and trials are underway for new infrastructure. Implementation will likely occur in phases, starting with simple methods to achieve quick carbon savings before advancing to more complex systems. Urban areas, with their high energy demand, are the primary focus for initial investments. Cities will adopt sustainable power solutions, transportation systems, and electric vehicle charging networks. By 2050, these innovations will go a long way toward revolutionizing energy supply, transforming homes, transportation, and lifestyles.
Which of the following best summarizes the main point of the passage?