二：完形填空（共15小题，每小题1分，满分15分） 阅读下面的短文，掌握其大意。然后从21－35各题所给的四个选项中选出最佳选项，并在答题卡上将该项涂黑。 How to get rid of waste is a great problem for the world today. Waste must be treated 21 it does not become a danger to life. 22 , in some countries, waste from factories is still poured straight into rivers. People who use the water from one of these rivers often get 23 . The water may become so polluted that it 24 all the fish in the river. When these rivers finally reaches the 25 , it pollutes the ocean. In many countries with 26 , human waste is piped directly into the sea without being dealt with. This is not 27 . Although the sea itself can break up the waste, beaches 28 become polluted. 29 scientists suggest people take the waste far out to sea in ships where the wind and waves break it down. In 1989 an international law was passed to 30 people putting waste into the sea. It is now against the 31 to put anything into the sea nearby. Such rubbish as plastics may not be thrown 32 the sea anywhere. Other waste may be put into the sea, either 19 or more than 40 kilometers from land, 33 the nature of the materials. The 34 of dealing with waste has become so great that several international organizations have been 35 to protect the world and control pollution. 21. A. as if B. so that C. ever since D. now that 22. A. Luckily B. Happily C. Unfortunately D. Hopefully 23 A. sick B. hope C. rich D. fun 24. A. raises B. feeds C. kills D. breaks 25. A. pool B. lake C. spring D. sea 26. A. grassland B. plains C. sea coasts D. deserts 27. A. safe B. useful C. dirty D. wrong 28. A. need B. may C. can’t D. needn’t 29. A. So B. Because C. Since D. But 30. A. stop B. suggest C. keep D. find 31. A. school B. organization C. factory D. law 32. A. out of B. away from C. into D. above 33. A. depending on B. feeding on C. leading to D. connecting to 34. A. news B. method C. problem D. disadvantage 35. A. punished B. set up C. refused D. called at |