18B8B UnitUnit 8 8 A A greengreen worldworld单元重点知识点总览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 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 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，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. 2他将依靠他的父母太长的时间。语法：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 University 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：-Are you going to be invited to the party by them? -Yes, I am. / No, Im not.单元重点短语归纳单元重点短语归纳 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 separated 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3句型归纳句型归纳 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 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8B8B UnitUnit 8 8 单元测试（单元测试（A A）卷）卷 一、一、 短语翻译（每题短语翻译（每题 1 1 分，共分，共 1010 分）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、二、 单项选择（每题单项选择（每题 1 1 分，共分，共 1515 分）分） ( ) 1.（2015 江苏南京）Its very important for us to protect nature because we _ its rich resource to live. A. 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 modern industry, there will be _ living space for wild animals. A. fewer and fewerB. less and less C. 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. 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. around4( ) 9.（2014 上海）Air pollution 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 downD. turn around ( ) 12.（2015 广西贵港）Jim wants to hang out with his friends at night, but his parents dont a