Read the following paragraph and underline the topic sentence.

There are at least three major problems in grain production. First, our farmland shrinks rapidly because of the construction of factories, apartments, golf courses, shopping malls and graveyards. Moreover, peasants are eager to produce tobacco or flowers to get higher profits. Second, shortages of the water often result in poor harvests because the rapid expansion of cities and towns uses up most of the water resources. In most dry provinces, a mild drought may cause poor or no harvest. Finally, since their life in rural areas is a perpetual struggle against poverty, millions of young peasants rush to cities for easier jobs and leave fertile fields lying wasted.

Write letter according to the following situation: You are Li Xiao. Your friend Zhang Jun is studying at Shanghai University. You miss him very much. Write a letter to ask him about his life. (150-200 words)

Air pollution has several damaging effects on the environment. It soils clothes and may even rot them. Flowers, shrubs, and trees don't grow well in places where there is too much air pollution. In addition, dirty air sickens farm animals and has been known to damage food crops. Soil erosion has decreased the land resources for growing plants, too. Further, it rusts metal and disfigures historic monuments and public buildings. Some of the statues, for example, on Notre Dame Cathedral in France have begun to deteriorate as a result of prolonged exposure to polluted air. Notre Dame was built during the Middle Ages and is one of France's most historic landmarks. Air pollution also destroys the landscape beauty this earth abounds in by hiding it behind a haze of filth. Finally, extended exposure to air pollution can also affect vision and breathing humans. Even mild doses of air pollution have been known to bring on heart attacks and lung disorders.

19. How could they be shocked to see the same in real life?

20. They do believe that the violence they see is normal and acceptable.

21. Children do not have enough experience to realize that TV shows present an unreal world and that commercials lie in order to sell products that are sometimes bad or useless.

22. They do believe they will make more friends if they use a certain soap—or some other products.

23. All educators and psychologists agree that the “television generations” are more violent than their parents and grandparents.

24. Unfortunately, television's influence has been extremely harmful to the young.

25. By the time they are out of high school, most young people have watched 15,000 hours of television, and have seen about 18,000 killings or other acts of violence.

26. They believe and want to imitate what they see.

Read the following paragraph carefully and choose the best topic sentence from the four possible answers that follow the paragraph by writing A, B, C or D.

Topic Sentence:__________

Until the early 1960s, most people reported getting more news from newspapers than from any other source. By the mid-1960s, television nudged(轻推) out newspapers as the public's major source of news. By the 1980s, about two-thirds of the public cited television as their news source, compared with less than one-half who named newspapers and less than one-fifth who relied on radio. Not only is television the public's most important source of news now, but television news is also rated as more trustworthy than newspaper news—by margin of more than 2 to 1.

A. Virtually all citizens rely on the mass media for news.

B. Only a very small number of the public relied on the radio for news.

C. The public got news mainly from newspapers before the early 1960s.

D. Television now has become the most popular and trustworthy source of news.

Read the following paragraph and underline the topic sentence.

There are at least three major problems in grain production. First, our farmland shrinks rapidly because of the construction of factories, apartments, golf courses, shopping malls and graveyards. Moreover, peasants are eager to produce tobacco or flowers to get higher profits. Second, shortages of the water often result in poor harvests because the rapid expansion of cities and towns uses up most of the water resources. In most dry provinces, a mild drought may cause poor or no harvest. Finally, since their life in rural areas is a perpetual struggle against poverty, millions of young peasants rush to cities for easier jobs and leave fertile fields lying wasted.

Susan likes to swim in summer and skiing in winter.

Choose the best topic sentence from the group below by writing A, B, C or D.

A. The most critical election happened in 1896.

B. The Great Depression produced conditions for 1932 election.

C. Abraham Lincoln won the election of 1860 and became the 16th American president.

D. America's two-party system has experienced three critical elections, each of which affected the party balance in government.

Answer:__________

I want either to study English or study world history.

Where to go, when to start and what other things we should pay special attention to. We have to discuss now.

I could not help looking back at him. Tears streaming down my face.