Question: Read the following article and select the best answer. Article: This year some twenty-three hundred teenagers (young people aged from 13-19) from all over the world will spend about ten months in U. S. homes. They will attend U.S. schools, meet U.S. teenagers, and form impressions of the real America. At the same time, about thirteen hundred American teenagers will go to other countries to learn new languages and gain a new understanding of the rest of the world. Here is a two-way student exchange in action. Fred, nineteen, spent last year in Germany with George's family. In turn, George's son Mike spent a year in Fred's home in America. Fred, a lively young man, knew little German when he arrived, but after two months' study, the language began to come to him. School was completely different from what he had expected-much harder. Students rose respectfully when the teacher entered the room. They took fourteen subjects instead of the six that are usual in the United States. There were almost no outside activities. Family life, too, was different. The father's word was law, and all activities were around the family rather than the individual . Fred found the food too simple at first. Also, he missed having a car. "Back home, you pick up some friends in a car and go out and have a good time. In Germany, you walk, but you soon learn to like it." At the same time, in America, Mike, a friendly German boy, was also forming his idea. "I suppose I should criticize American schools", he says. "It is far too easy by our level. But I have to say that I like it very much. In Germany we do nothing but study. Here we take part in many outside activities. I think that maybe you schools are better in training for citizens. There ought to be some middle ground between the two." Question: What is particular in American schools is that _ . - students go outside to enjoy themselves in a car - there are a lot of after-school activities - students usually take fourteen subjects in all - there is some middle ground between the two teaching buildings
Answer: there are a lot of after-school activities

Question: Read the following article and select the best answer. Article: As rain begins to fall from the clouds, it is very pure. However, as it falls through the air it dissolves some of the gases in the air. It also collects bits of dust and microbes that are floating in the air. When the rain reaches the ground it begins to pick up more dust and dirt. Many kinds of mineral substances dissolve in the water. Sand and mud cannot dissolve in water. Since water is so important to us, it is very important that the water we use should be clean. Otherwise, we might get some of the diseases that are carried by water. Many microbes are harmful. They are so small that we cannot see them. These microbes must be removed or killed before the water is suitable for drinking. For example, microbes of diseases like cholera live well in water. If the water supply is not clean, people who drink this water may get these diseases. Thus, to provide people with clean water, the government purifies the water. Purification is a long process and includes three stages: storing, purifying and distributing . The first stage is storing. Man-made lakes are used for this purpose. Water from the rains, other lakes, streams and rivers is collected in the lakes. This water is usually dirty and muddy. In the second stage, water from the man-made lakes is filtered in a special pond. Stones, sand and other unwanted tiny things are caught in it. After that, tiny microbes are still present in the water. These microbes are removed by "airing" the water and by adding a chemical substance called chlorine to the water. This kills all the microbes in the water. After this, the water can be safely used for drinking. The third stage is the distribution of the purified water to homes, hospitals, offices, factories and other places. This is done through a network of pipes of various sizes. These pipes must be made of a suitable material. Question: What can we know about man-made lakes? - It is used through the whole process of purification. - Only rain water can be collected and stored in it. - Water collected can be stored and filtered in it. - Water from it contains a lot of impure substances.
Answer: Water from it contains a lot of impure substances.

Question: Read the following article and select the best answer. Article: As has been all too apparent in recent days at Balcombe, few issues cause greater concern than energy policy. Many village communities feel their countryside is being ruined by the power-producing machines of wind farms; yet they never take "direct action", even though the planning laws put them at a severe disadvantage. And the generous subsidies , which encourage the expansion of wind power, are not favorable to the village communities and set landowners in conflict with other residents . Those who disagree with the rapid expansion of wind farms state that the damage they cause is out of proportion to the benefits they bring, because their energy output cannot match that of the carbon-based power stations they are supposed to replace. Supporters insist that wind must be part of a mix of renewables, nuclear and carbon, and that the country is committed to meeting EU ( European Union) targets for non-carbon energy generation. ZXXK Against this background, the fact that there is an argument within the Government over whether to publish an official report on wind farms' impact on the countryside becomes even more extraordinary. The two parties in the coalition government are in disagreement over what it should say. We have some advice for the two parties: publish the report, and let the country be the judge. Even if it contains evidence that wind farms are harmful, it will hardly be a pleasant surprise to people who do not like them. Equally, supporters must argue their case by acknowledging the concerns and explaining why they are either misplaced or worthy of much attention. The suggestion that further negotiations are to take place to produce an "acceptable" report suggests that the politics of coalition government are doing the country harm in a certain way. Given the sensitivities involved, all the information should be available so that people can reach their own conclusions, rather than being left with the suspicion that facts are being replaced by political beliefs. Question: Supporters think that the expansion of wind power _ . - is more rapid than that of carbon-based power - guarantees an increase in energy output - is expected to be much better than that of nuclear power - agrees with EU targets for non-carbon energy generation
Answer:
agrees with EU targets for non-carbon energy generation