Unit 3III1-f. 2-d 3-I 4-g 5-h 6-c 7-j 8-a9-e 10-bB.1.preserve 2. intractable 3.depletion 4.survival 5.profound 6.popular 7 suspicious 8 unrestricted 9consumer 10dangerc.1. investment 2.species 3.tropical 4.suspicious 5.environment 6.in doubt 7.up to 8.tremendous 9.out of business 10.involving 11.desperately 12 sensible 13preserve 14in theoryD.1. devastating 2.extinction 3.survival 4.effective 5.emittedIV. 1.因此，如果失去一个重要物种，你就会导致大量其它物种的绝迹。2.这种办法使当地人们可以为经济的原因而去保护动植物，而不是依靠在很大程度上难以奏效的那些反非法偷猎的规章制度。3.一些观察家对这些钱财实际上能否到达应该接受这笔财物的人们手中表示怀疑。4.森林的可持续管理既需要投资物种新树以取代被砍伐的树林，也需要被砍伐树林的数量进行控制。5.理论上讲，消费者只能够购买这些获得认可的木材，这将迫使伐木公司开始保护“绿色”，否则将无生意可做。B.1.The extremely heavy flood did get damage to the middle and lower reaches of the Yantse River.2.The bestseller had a great impact on its readers.3.I can give you $5 at most, for the used bicycles.4. Their political rights, as well as their economic benefits should be safeguarded.5.The unexpected illness made a mess of my holiday plans.6. If you are wise, you should study for another year.7. You may keep the book a further week provided that no one else requires it.8. There was a flood of complaints from the press about the bad language used in the special TV show.9. Her task is to range the goods neatly in the shop window.10.The headmaster encouraged the candidates for the national maths competition to strive for the best results.P.431.Cacaa, ddbdc, baaba2.1.The population in this city is larger than in that city.2.The more English you have read, the faster you can read.3.This is the longest of the three railroads.4.This factory is three times as large as that one.5.This work is as difficult as the one we finished last year.6.He has made more achievements in research than we have.7. This park is the tidier and cleaner of the two.8. He speaks English the best in our class.9.The production of this factory has increased 10%more than that of 1990.10.We used fewer people to finish this work than they do.Unit 4P56.III.1.apology 2.liable 3.authority 4.famine 5.predessor 6. erase 7.generosity8.suffering 9.compensation 10.investigation 11.phenomenon 12.disasterB.1.issued 2.celebrate 3.was apologizing 4.appropriate 5.sophisticated 6.suffering 7.academic 8.conscience 9.was sympathetic 10.historicc.1.resulted from 2.turned into 3.turned out to be 4.in earnest 5.belong to 6.turn a blind eye to 7.look on as 8.carried out 9.find to my cost 10. In the eventIV.1. 这个潮流 是从1995年才真正开始的，当时英国女王承认当新西兰还是英国殖民地时，新西兰的土著人曾遭到英国人的羞辱。2. 像大多数公民一样许多 政治领袖都属于战后一代，他们现在把这种战争简单地看成是正义战胜邪恶的战争。3. 支持这些道歉的并不仅仅是良心的发现，也不仅仅是压力群体的要求。4. 瑞士政府仍然试图摆平一场公共关系的失败，其发生的原因在于他们对他们国家在20世纪30年代、40年代与纳粹分子的交往所做的道歉是有失公允。5. 事实上，这些风险是如此的空泛，以至于有一种担心认为“对不起”这个词居然会成为一个脱口而出的说辞。B.1.turn a blind eye to the suffering of the war2.the 50th anniversary celebration3.to make public apologies to4.a well-timed apology5.to promote a head of states public image6.to put right the public-relations disaster7.to say sorry for past wrongs8.recently declassified documents9.to admit ones past wrongs10.to pay compensation for war damageC.1.We would make a formal apology to Chinese people for their cruelties committed during the Second World War.2.It turned out that two travelers had been killed.3.Now People look on TV as an essential facility for life.4.The head of state who turns a blind eye to the peoples sufferings will not gain support from them.5. The brave young man risked his life in trying to save the child from the lake.P60.Ddaba, ddbba2.1.To finish this work needs at least 10 people.2. Our aim is to pass the English test.3.She has a lot of exercises to do, so she cant go to the party with you.4. We must work hard to achieve the goal.5.I had him clean the room.6.It is necessary for him to enlarge their vocabulary.7. They volunteered to go to the work.8.His task is to take care of the sick.9.We must set off right now so as to get there before 5.10.We need 2 persons to type this article.