NOISE POLLUTION
Noise is more than a mere nuisance. At certain levels and durations of exposure, it can cause physical damage to the eardrum, and (1)_____ in emporary or permanent hearing loss. In addition to causing hearing loss, (2)_____ noise exposure can also (3)______ blood pressure and pulse rate, cause irritability, anxiety, and mental fatigue, and interfere with sleep, recreation, and personal communication. Noise pollution control is, (4)______ , of importance in the workplace and in the community. Noise effects can be (5)_____ by a number of techniques, for example, increasing the distance or blocking the path between the noise source and the recipient, reducing noise level at the source, and protecting recipients with earplugs or earmuffs

It is true that keeping t will benet a person’s health in many ways. It has become clear in recent years, that a large number of people are doing less and less exercise and this is now causing many serious illnesses, putting a strain on doctors and hospitals. However, some experts believe that too much exercise can do just as much (1)_____ . Although it is true that moderate exercise such as walking can be very benecial to a person’s health, it is not the only one factor (2)_____ keeps us healthy. Diet is also extremely important and I would argue that it is probably even more important than exercise, although the ideal is for both of these factors to work together. It seems to me that many people are unwilling to put in the effort required to become tter. 3)_____ , too much exercise can also cause problems. So people are urged totake moderate exercise and eat moderately healthily rather than embarking on extreme diets and training. In too many instances, ultra- t people have had heart attacks or dropped down dead. In all, governments need to nd ways of (4)_____ people to take responsibility for their own health. People need to realize that eating healthy food does not have to cost a (5)_____ , nor is it difcult to prepare healthy meals themselves. People need to be better educated about their health.

When hosting an Olympic Games, a country has to take account of several considerations, among which the nancial one is by far the most important. The costs of hosting the Olympics can (1)____ tens of
billions of dollars, and it is commonplace for budgets to double or even triple. In addition to the direct costs of hosting the Games (the opening and closing ceremonies, athletes’ village, security, etc.,), cities often must build expensive new venues (2)_____ lesser-known sports. Once constructed, sports venues often incur additional maintenance costs long after the Games have ended. While costs are the (3)_____ concern for a host city, there are other factors to consider. For one, an Olympic host city may receive substantial revenue from ticket sales, tourist spending, corporate sponsorship, and television rights. Cities such as Los Angeles (1984) actually made a large prot from the Games they hosted. (4)_____ , hosting the Olympic Games confers prestige on a host city and country, which can lead to increased trade and tourism. The Olympics are also an opportunity to invest in projects (5)_____ improve the city’s quality of life, such as new transportation systems

Australia could (2)_____ experience a drought in many parts.

Nineteen people were killed, £1.5-billion worth of damage was (3)_____ and 19 million trees were blown down in just a few hours.

This serves to illustrate people’s utter (4)______ in the face of machines that are meant to serve their basic needs. Clearly, Modern Times has its faults, but it remains the best film treating technology within a social context.

An amoeba can move (5) _______ changing the shape of its body. It sticks out a pseudo pod, or false foot. A paramecium is covered with tiny hairs. It waves its hairs rapidly to swim.

In the United States, federal law requires states to identify and serve all children (1) _______ disabilities. Public education and health officials in the United States identified approximately 5.4 million infants, toddlers, (2) _______, and youth as disabled in 1994. That same year, the U.S. Department of Education reported that 12.2 percent of all children (3) _______ the age of 21 received some form of special education. The most frequently reported disabilities are speech or language impairments; mental retardation and (4) _______ developmental disorders; serious emotional disturbance; and specific learning disorders, (5) _______ memory disorders.

Neil Armstrong (1) _______ into his microphone. And in less than two seconds the message that will live in the annals of exploration flew with the (2) _______ of radio to the huge telescope dish at Honeysuckle Creek, near Canberra, Australia, thence to the Comsat (3) _______ over the Pacific, then to the switching center at the Goddard Space Flight Center outside WashinGiải thíchon, D.C., and finally to Houston and the (4) _______ of the world: “That's one small step for a man, one giant leap for mankind.”