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1、8B Unit 8 A green world单元重点知识点总览1.We can reduce air pollution by riding bicycles.我们可以通过骑自行车减少污染。reduce 及物动词，“减少”。如：Giving up smoking reduces the risk of heart disease. 戒烟会减少得心脏病的风险。2.We can save water by taking shorter showers.我们可以通过洗更短的淋雨节省水。save 动词，“节约，节省”，save water “节约用水”。如：Its necessary for us
2、to save water.节约用水对我们来说很有必要。3.My dad used to drive me to school, but now we take the underground.我的爸爸过去常常开车送我去上学，但现在我们乘地铁。（1）used to 表示“过去常常”，后接动词原形构成used to do sth “过去常常做某事”。He used to drink.他过去经常喝酒。（2）be used to doing sth “习惯于做某事”。如：The old man is used to living alone.这位老人习惯于一个人生活。【拓展】be used to 后
3、面也可接动词原形，即be used to do sth，表示“被用于做某事”，是一种被动结构，相当于be used for doing sth。如：The material is used to make a plane. 这材料是用于制造飞机的。5.More and more families own cars and this causes serious air pollution.越来越多的家庭拥有汽车，这导致严重的空气污染。（1）cause使（某事）发生，引起This disease can cause blindness.这种疾病可能会导致眼睛变盲。（2）more and more
4、 越来越At present, more and more people are using computers现在，越来越多的人使用电脑。6.It is beautiful, and we should try to keep it that way. 它很漂亮，我们应尽力使它保持那样。try to do sth “设法做”，表示尽力去做，不管是否成功。【拓展】try doing sth “试一试”，表示试着去做。7.For example , we are not allowed to cut down tree.例如，不允许我们砍树。（1）for example 例如（2）allow动词
5、，意为“允许”，常用于allow sb. to do sth结构，意为“允许某人做某事”。My parents wouldnt allow me to go to the party. 我父母不会让我去参加聚会。8.We depend on its rich resources to live, so it is important for us to protect it wisely.我们依靠它（大自然）丰富的资源生活，因此明智地保护它对我们来说是重要的。depend on 依靠，依赖He will depend on their parents for a long time. 他将依靠
6、他的父母太长的时间。语法：一般将来时的被动语态一般将来时的被动语态有两种构成形式：1、will + be done表示“将会被”。其否定式是在will后面加not，疑问句式是将will提至主语前。主动句：Our college will send her to Oxford University.被动句：She will be sent to Oxford University by our college.否定句：She will not be sent to Oxford University by our college.疑问句：-Will she be sent to Oxford U
7、niversity by our college?-Yes, she will. / No, she will not.2. be going to + be done表示“准备被，打算被”。其否定形式是在be going to中的be后加not，疑问句式是将be提至主语前。主动句：They are going to invite you to the party.被动句：You are going to be invited to the party by them.否定句：You are not going to be invited to the party by them.疑问句：-A
8、re you going to be invited to the party by them?-Yes, I am. / No, Im not.单元重点短语归纳1. turn off 关上（开关）2. depend on / upon 依靠，取决于3. make a difference 有影响，起作用4. cut down 砍倒5. run out 用完，耗尽6. in place 在正确位置7. be good for 对有好处8. air pollution 空气污染9. take showers 淋浴10. keep it that way 保持那个样子11. be separate
9、d into 被分成12. throw into 把扔进13. be filled with 充满14. clean up 清扫干净15. in place 在正确的位置句型归纳1. be serious about sth 对某事是认真的2. allow ( doing ) sth 允许（做）某事3. allow sb. to do sth 允许某人做某事4. punish sb. for (doing) sth 因为（做）某事惩罚某人5. make a difference (to sb./ sth.) （对）有影响，起作用6. do harm to 对有伤害7. do a survey
10、on 座一个关于的调查8. be harmful to 对有害9. not only but (also) 不但而且 8B Unit 8单元测试（A）卷一、 短语翻译（每题1分，共10分）1. 依靠_ 2. 对有益_ 3. 关掉_ 4. 过环保生活_ 5. 减少空气污染 _ 6. 节约用水_ 7. 被分成_ 8. 穷人_ 9. 被允许做某事 _ 10. 砍倒_ 二、 单项选择（每题1分，共15分）( ) 1.（2015江苏南京）Its very important for us to protect nature because we _ its rich resource to live.A
11、. depend onB. leave forC. give upD. lead to( ) 2.（2015江苏淮安）Its getting dark. Please _ the light.A. turn onB. turn offC. turn downD. turn around( ) 3.（2015江苏南通）Hobo, can I eat the hamburger?Sure, if the dishes _.A. washB. are washedC. will washD. will be washed( ) 4.（2015江苏盐城）With the development of
12、modern industry, there will be _ living space for wild animals.A. fewer and fewerB. less and lessC. more and moreD. bigger and bigger( ) 5.（2015天津）The novel _ by many people today.A. is readB. are readC. readsD. were read( ) 6.（2015黑龙江齐齐哈尔）Dont forget to _ the lights before you leave the classroom.A
13、. turn offB. turn downC. turn upD. turn on( ) 7.（2015广东汕尾）The 31st Olympic Games _ in Rio de Janeiro (里约热内卢) of Brazil in 2016.A. is heldB. will holdC. will be heldD. is going to hold( ) 8.（2015湖南永州）Reading in the sun is not good _ your eyes.A. forB. aboutC. withD. around( ) 9.（2014上海）Air pollution
14、has become _ than ever before. We must do something to stop it.A. seriousB. more seriousC. most seriousD. the most serious( ) 10.（2014辽宁沈阳）The office phones are dirty and they _ next week.A. will cleanB. will be cleanedC. are cleaningD. are cleaned( ) 11.（2014天津）When you leave, please turn off the light _ energy.A. saveB. savingC. turn down
