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Câu hỏi:

Read the following passage and choose the best answer to each of the following questions from 26 to 35.

1. The microwave oven is a very common kitchen appliance today, but many people do not know that it was discovered by accident. In 1945, Percy Spencer, an engineer, was working on a project involving radar technology. He was testing a device called a magnetron, which generates microwaves. One day, while standing near the magnetron, he noticed something surprising. A chocolate bar in his pocket began to melt. What began as a surprising observation soon turned into a curiosity that drove him to study how microwaves might interact with food.

2. Percy Spencer decided to perform more experiments. [I] He placed popcorn kernels near the magnetron, and they started to pop. Then, he tried heating an egg. The egg exploded quickly, which was a clear sign that microwaves could generate heat. [II] These experiments showed that microwaves could cook food very efficiently. [III] Spencer realized that this discovery had the potential to change the way people prepared meals. [IV]

3. In 1947, the first microwave oven was introduced. However, it was far from the compact machines we use today. These early microwaves were enormous, about the size of refrigerators, and extremely expensive, costing thousands of dollars. They were mostly used in restaurants and by the military, as ordinary people could not afford them. Over the years, improvements were made to make the microwave smaller, more affordable, and easier to use. By the 1970s, microwave ovens started to appear in homes around the world.

4. Today, the microwave oven is an integral tool in many kitchens. It allows people to heat or cook food in just a few minutes. Percy Spencer’s accidental discovery reminds us that sometimes great inventions come from unexpected events. With curiosity and determination, even a simple observation can lead to something life-changing.

Which of the following is TRUE according to the passage?

A.

The experiments with popcorn and egg showed that microwaves could generate heat.

B.

The microwave oven became a popular household appliance immediately after its invention.

C.

The chocolate bar melted because Percy Spencer placed it inside the magnetron.

D.

The magnetron was created by Percy Spencer as a solution for heating food quickly.

Trả lời:

Đáp án đúng: A


Đáp án đúng là: A

Giải thích: The experiments with popcorn and egg showed that microwaves could generate heat. (Các thí nghiệm với bỏng ngô và trứng cho thấy lò vi sóng có thể tạo ra nhiệt.)

Các đáp án còn lại sai.

Câu hỏi này thuộc đề thi trắc nghiệm dưới đây, bấm vào Bắt đầu thi để làm toàn bài

Bộ Đề Kiểm Tra Học Kì I - Tiếng Anh 10 - Global Success - Bộ Đề 01 được biên soạn theo cấu trúc đề thi mới nhất của Bộ GD ĐT, bám sát chương trình SGK Global Success 10. Đề gồm các phần Trắc nghiệm từ vựng – ngữ pháp, Đọc hiểu và Viết, giúp học sinh ôn tập toàn diện, củng cố kiến thức và làm quen với dạng đề thi học kì I chuẩn.

21/10/2025
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