人教版选修八Unit 1 A land of diversity grammar课时作业 (1).docx

unit 1 a land of diversity grammar课时作业.单词拼写1water exists in three forms, which are liquid, gas and solid.2id like to live in a warm climate (气候)3he was interested in astronomy (天文学) and always stayed up at night to watch the stars.4the mixture of gases that surrounds the earth is called atmosphere.5a strange virus struck my computer system (系统) so that it broke down.6most criminals are violent (强暴的) and dangerous men.7they placed the child in an oxygen tent when he had difficulty in breathing.8without gravity,_we couldnt walk on the earth.9there is a lot of rubbish floating (漂浮) on the surface of the river.108 multiplied by 2 is 16.语法填空1life is like a tale.what matters is not how long it is, but how good it is.2your smoking can be harmful to the health of your children.3the reporters as well as some critics remained puzzled (puzzle) by the election results.4our city has experienced twice as much rain this year as it did last year.5sometimes he found it very hard to fall asleep at night, so he went to see the doctor.6formaldehyde is used in the building materials, which is as harmful (harm) a chemical to our health as melamine.7that we should work out a plan to deal with the present serious situation is important.8a fierce fight broke out between the two brothers just because of a small thing.9many people are worrying about the facts about global (globe) warming.10actually, in everyones mind, there exists a great dream to achieve.单句改错1that is certain that we can win.答案：thatit2she started as an office junior, and in the time became the director of the whole company.答案：去掉第一个the3doctors say many diseases can be prevented spreading by hand washing.答案：prevented后面加from4that he has done suggests that he is a good leader.答案：thatwhat5it seems as if the dog is the womans baby.答案：iswere.完成句子1我们打电话的时候她恰好出去。(happen)it happened that she was out when we called.2有车之后，我的活动量不如从前了。(now that)now that i have my car，i dont get as much exercise as i used to.3我们发现在这样坏的天气下要爬到山顶上去是不可能的。(find)we found it impossible to climb to the top of the hill in such bad weather.4我认为我们必须每天打扫。(make)i think we must make it a rule to do some cleaning every day.5肯尼亚，一个面积是英国两倍多的地方，四处干旱炎热。 (size)kenya, a land more than twice the size of britain, is everywhere parched.v. 词汇a)根据句意及汉语提示，写出所缺单词。1. its _ (不像) him to be late; hes usually on time.2. not all people are aware of the various effects of _ (全球的) warming on earth.3. some believe in the _(存在) of life on mars, while others consider it as a myth.4. everyone was a bit _(迷惑的)by her sudden departure.5. i consider that it is _ (有害的) for students to play computer games, though some of them dont think so.b)在句中空白处填入适当的内容(1个单词)或括号内单词的正确形式。6. whether life will continue on the earth for millions of years to come will depend _ whether this problem can be solved.7. “im sorry to disturb you,” webb said _(gentle).8. look! there is something _ (float) on the water.9. he failed in the exam and i didnt know how to cheer him _.10. after yang liwei succeeded in circling the earth, _ our astronauts desire to do is walk in space.答案 1. unlike 2. global 3. existence 4. puzzled5. harmful 6. on 7. gently 8. floating 9. up 10. whatvi. 选词填空as far as; watch out; in time; give birth to; break out; in ones turn; block out; now that; get the hang of; cheer up1. dont worry im sure things will get better _.2. we congratulated her on _ a fine healthy baby.3. class three should be responsible for raising the red flag this week _.4. the wall _ all the light.it should be pulled down.5. she told her child to _ when crossing the street.6. using the computer isnt difficult once you _ it.7. should another world war _, what would become of human beings?8. the crowd _ when they saw the teams arrive.9. ill go with you _ the station for company.答案 1. in time 2. giving birth to 3. in its turn 4. blocks out 5. watch out 6. get the hang of 7. break out 8. cheered up 9. as far asvii. 完成句子1. once he has made up his mind，no one can _ _ _ _ _(阻止他执行)the plan.2. mary looks a little unhappy today. yes.we must do something to _ _ _(使她振作起来).3. before _ _ _ _(战争爆发), many people put away in safe places possessions they could not take with them.4. will you be home _ _ _ _ _ _(及时看看孩子)before they go to bed?5. youve made me suffer in the past, so now you, _ _ _(轮到你了), suffer again!6. their son _ _ _ _ _ _(被阻止上大学)because of their low income.7. sometimes, doing exercise violently _ _ _ _(对健康有害).8. _ _ _ _ _ _ _(既然大家都同意这个计划), lets start for shanghai next weekend.(now)9. _ _ _ _ _(感觉是我们的职责)to make our country a better place.(it)10. our new house is _ _ _ _ (两倍大) the old one.答案 1. prevent him from carrying out 2. cheer her up 3. the war broke out 4. in time to see the children 5. in your turn 6. was prevented from going to college 7. is harmful to/does harm to health 8. now that everybody agrees to the plan 9. we feel it our duty 10. twice as big asviii.书面表达随着世界太空技术的发展，人类的太空梦不再是梦。但是也有人觉得耗费大量的人力和财力来研究和开发太空资源不切实，不如将这些人力和财力用来着重解决人类当前面临的重大问题，改善地球的生存环境。对此，你有何看法？_参考范文 developing space technology, worthwhile or not?with the development of space technology, human beings are exploring further into the space. those space experiments and explorations cost huge sums of money, which, quite a number of people think, should have been used to protect human natural environment and solve the problems we all are facing. this might be true, but i think in the long run human will have to turn to other planets when all the resources are used up. for example, human