2020高考一轮复习:必修2 Unit 4 知识串讲课件.pptx

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1、20202020年高考英语一轮复习年高考英语一轮复习教材串讲:教材串讲:必修必修2 Unit 4 Wildlife protection必背考点训练必背考点训练1重点考点研读重点考点研读2单元语法精讲单元语法精讲3内容大纲内容大纲话题范文背诵话题范文背诵4必背单词必背单词1._ vi.&vt.减少;(使)变小或变少2._n.损失;遗失;丧失3._vt.&vi.打猎;猎取;搜寻4._vi.回答;响应;做出反应5._ n.(痛苦或忧虑的)减轻或解除;减轻痛苦的事物6._ n.仁慈;宽恕;怜悯7._ adj.确定的;某一;一定8._ vt.鉴赏;感激;意识到9._ vi.成功vt.接替;继任10._

2、 n.&vt.损害;危害decreaselosshuntrespond relief mercy certainappreciate succeed harm 必背短语必背短语1._灭亡;逐渐消失【常用结构常用结构】(1)_因而死(一般指死于内因,如疾病、饥饿、情感原因等)_因而死(一般指死于外因,如外伤、车祸、污染等)_(声音、风、光等)慢慢变弱,渐渐消失_(兴奋、火等)渐弱,渐息,平息_(家庭、种族等)相继死亡,(草木)先后枯死(2)_渴望_ 很想做某事;渴望做某事2._ 和平地;和睦地;安祥地3._在危险中;垂危【常用结构常用结构】_脱离危险 die out die ofdie from

3、die away die down die off be dying for be dying to do sth.in peace in danger(of)out of danger 4._突然笑起来;大声笑了出来【常用结构常用结构】_ 突然大笑起来_突然哭起来5._注意【常用结构常用结构】_引起某人的注意_把某人的注意力/眼光集中到上burst into laughter burst out laughing burst out crying=burst into tears pay attention to attract/draw/catch ones attention fix o

4、nes attention/eyes on/upon.6._形成;产生【常用结构常用结构】_生效_ 开始执政,上台_开始使用_看得见come into being come into effect come into power/office come into use/service come into sight/view 必背句型1._请把我带到遥远的地方,在那里我能找到提供毛绒来做这 件毛衣的那种动物。2._这表明保护野生动植物的重要性,但我想按照世界野生生物基金会的建议来帮助(你们)。3._如果野生生物保护得以成功,必须做些什么?4._过了一会儿她看到了一些斑马,它们身上有一直延伸到

5、腹部的黑白相间的条纹。5._千百万年前恐龙就在地球上生活,比人类的出现要早得多,他们的未来在那时看来很安全。Please take me to a distant land where I can find the animal that gave fur to make this sweater.It shows the importance of wildlife protection,but Id like to help as the WWF suggests.What must be done if wildlife protection is to succeed?After a

6、while she saw some zebra with black and white lines going beneath their stomachs.They lived on the earth tens of millions of years ago,long before humans came into being and their future seemed secure at that time.1.die out灭亡;逐渐消失【教材原句】As a result these endangered animals may even die out.结果这些濒危动物甚至

7、有可能会消亡。考点探究考点探究翻译句子,体会黑体部分含义(1)Half of the languages spoken around the world today will likely die out by the next century._单句写作(2)很多稀有动物正濒临绝迹。_到下个世纪,世界上现存语言中的一半可能要消失。Many rare animals are dying out.记考点记考点(1)die away(声音、光线、风等)逐渐模糊;逐渐消失(2)die down 逐渐变弱;逐渐平息(3)die off(家族、种族等)相继死亡;(草木)先后枯死(4)die of/fro

8、m 因而死(5)be dying for sth./to do sth.渴望/极想做某事2.in danger(of)在危险中;垂危【教材原句】Why are they in danger of disappearing?为什么它们会面临灭绝的危险?考点探究考点探究用in danger或in danger of填空(1)But I had toour lives were _.但我不得不因为我们的生命有危险。(2)This can put their pets serious illness.这可能会让他们的宠物有得重病的危险。联想拓展记考点(1)out of danger 脱离危险(2)fu

9、ll of danger 充满危险in dangerin danger of-13-3.contain vt.包含;容纳【教材原句】It contains a powerful drug which affects mosquitoes.它含有一种强效的药物可以防止蚊虫叮咬。考点探究考点探究诵读或完成句子,体会黑体部分含义(1)Researchers have discovered that“night milk”contains more melatonin.研究者们发现“晚上的牛奶”含有更多的褪黑激素。(2).so he could contact the driver,only to d

10、iscover it contained 400 in notes,with another 50 in spare change beside it.以便他可以联系司机了,却发现了里面有400英镑的支票,另外还有50英镑的零钱。-14-(3)Be especially careful of information (contain)in advertisements.对广告里含有的信息要特别小心。辨词义辨词义用contain或include的适当形式填空(1)After the meal,she placed a little box an old pen in my hand.(2)Thi

11、s book ten units,two mainly revisions.(3)Everyone had something to say,me .containedcontainingcontainsincludingincluded4.affect vt.影响;感动;(疾病)侵袭【教材原句】It contains a powerful drug which affects mosquitoes.它含有一种强效的药物可以防止蚊虫叮咬。考点探究考点探究写出下列句中affect的含义(1)Dr.Welch knew the boy had diphtheria,a deadly infecti

12、ous disease mainly affecting children.(2)This affects their nervous systems and ability to produce baby birds.(3)From the experience I learnt a lot about how the attitude of the leader can affect the members of a team.(4)She was deeply affected by the news of his death.(疾病)侵袭影响影响感动记考点记考点(1)affect st

13、h./sb.影响某物/某人be greatly/deeply affected by被深深打动/感动;极大地受到影响be affected with high fever 发高烧be affected by heat/cold中暑/着凉(2)effect n.影响have an effect on/upon对有影响5.pay attention to 注意;留意【教材原句】You should pay more attention to the rainforest where I live and appreciate how the animals live together.你们应该多加

14、关注我生活的热带雨林,并且懂得热带雨林的动物是如何在一起生活的。考点探究考点探究用所给动词的适当形式填空(1)Uses of Prezi in listening and speaking courses draw students attention to _(speak)more fluently.在听说课程中使用Prezi能把学生的注意力吸引到更流利的讲话上。(2)You should pay attention to _(correct)the spelling mistakes.你应该注意改正拼写错误。speakingcorrecting-18-记考点记考点(1)focus/cent

15、re/fix ones attention on把注意力集中在(2)attract/draw/catch ones attention吸引某人的注意力(3)bring sth.to ones attention吸引某人注意某事提示pay attention to 短语中的to 是介词,后接名词、代词或动词-ing形式做宾语。6.appreciate vt.感激,感谢;鉴赏,欣赏,赏识;意识到【教材原句】You should pay more attention to the rainforest where I live and appreciate how the animals live

16、together.你们应该多加关注我生活的热带雨林,并且懂得热带雨林的动物是如何在一起生活的。派生appreciation n.感激,欣赏考点探究考点探究诵读或翻译句子,体会黑体部分含义(1)Now,I appreciate the silence and the new way of communication it opens._(2)I dont think we would have randomly invited him over but we appreciate it and the gifts.我不认为我们会随机邀请他过来,但是我们很感激他的来访和礼物。现在,我欣赏沉默和它开

17、启的新的交流方式。(3)I would appreciate it very much if you would help me with it._如果你能帮我做这件事,我将不胜感激。记考点(1)appreciate sth.欣赏某物,感谢某事(不能接人做宾语)(2)appreciate(sb.s)doing sth.对(某人)做某事不胜感激(3)I would appreciate it if.如果我将不胜感激。-21-7.succeed vi.成功vt.接替;继任【教材原句】What must be done if wildlife protection is to succeed?为确保

18、成功保护野生动植物,什么才是当务之急呢?派生success n.成功;成功的人或事successful adj.成功的考点探究考点探究诵读或翻译句子,体会黑体部分含义(1)He said that if he quit the job,he would lose his drive to work and succeed._(2)There is nothing more tiring than not succeeding._他说如果他辞去这份工作,他就会失去工作和成功的动力。没有什么比失败更让人感到疲惫的。(3)He had to succeed to the business when

19、his father passed away._用succeed的适当形式填空(4)Today they regard the move as a _,giving them a closer relationship.现在,他们认为搬家行动是成功的,因为家人之间的关系更加亲密。(5)The Central London Railway was one of the most (success)of these new lines,and was opened in 1900.伦敦中央地铁是这些新地铁线中最成功的线路之一,于1990年开始运营。当父亲去世时他不得不继承他父亲的事业。succes

20、ssuccessful记考点(1)succeed in doing sth.成功地做成某事(2)succeed to sth.继承(头衔、财产等)8.employ vt.雇用;利用(时间、精力等)【教材原句】Can they be employed to work in the park and not hurt the animals?给这些贫穷的农民提供在保护区工作的机会从而使他们不再伤害动物,这样可行吗?派生 employer n.雇主employee n.雇员;受雇者employment n.职业;工作;雇用考点探究考点探究用employ的适当形式填空(1)Its standard p

21、ractice for a company a security officer.对于一家公司来说,雇用保安是一种惯例。to employ-24-(2)More than 750,000 have graduated from SAC,with many seeking (employ)in engineering,aviation,education,medicine and a wide variety of other professions.750,000多人已从SAC毕业,并在工程、航空、教育、医药等诸多领域谋取职位。(3)More broadly the Wakefield sur

22、vey suggests that (employ)may be missing a low-cost way to give workers something of value.从广泛意义上来讲,Wakefield研究表明雇主们或许失去了价值体现的一种低成本方法。employmentemployers记考点(1)employ sb.as.雇用某人任(2)employ sb.to do sth.雇用某人做某事(3)be employed in doing sth.忙于做某事e into being出现;形成;产生【教材原句】They lived on the earth tens of mi

23、llions of years ago,long before humans came into being and their future seemed secure at that time.早在人类出现数千万年前,恐龙就已经生活在这个星球上;并且那时看起来他们有着稳定的未来。考点探究考点探究翻译句子,体会黑体部分含义(1)The dance known as the tango came into being._(2)俱乐部是什么时候成立的?_被称为探戈的舞蹈产生了。When did the club come into being?记考点记考点(1)come into power 当

24、权;上台come into use 开始使用come into existence 开始存在come into force/effect 开始生效(2)bring.into being 使形成;使产生提示提示“come into+n.”构成的短语既无被动形式,也不用于进行时态。-27-It shows the importance of wildlife protection,but Id like to help as the WWF suggests.这体现了野生动植物保护的重要性,不过,我还是想按照世界野生生物基金会的建议来帮助你们。考点探究考点探究as引导方式状语从句,意为“按照;如同

25、”。As Dr.Berger explains in his new book,“Contagious:Why Things Catch On.”正如Berger博士在他的新书中所阐释的,“传染:为什么事情会发生。”as作为连词的用法还有:(1)引导时间状语从句,意为“在期间,当时候”。(2)引导原因状语从句,意为“既然,因为”。(3)引导让步状语从句,意为“尽管,即使,虽然”。-28-考点探究考点探究翻译句子,写出as引导的是什么从句(1)As I am going to repair my bike,I need a hammer._(2)Good as it sounds,the ide

26、a is not practical._(3)State the fact as it is._(4)As he got closer,he found another vehicle upside down on the road._因为要修理我的自行车,我需要一把锤子。(原因状语从句)虽然这个主意听起来很好,但不实用。(让步状语从句)照实讲来。(方式状语从句)当他靠近一些的时候,他发现另一辆车翻倒在路上。(时间状语从句)现在进行时的被动语态现在进行时的被动语态1.结构结构(1)陈述句:主语+am/is/are+being+过去分词。(2)疑问句:疑问词+am/is/are+主语+being

27、+过去分词。2.用法用法 表示说话人说话时或现阶段正在进行的动作,经常和时间副词now(现在),right now(现在,此刻),at present(现在,目前),at this moment(此刻)连用。3.意义意义主语和谓语动词之间是被动关系,而且动作正在进行。(1)English is being taught by Miss Lee now.李老师正在教英语(2)New functions are being added to the camera at present.目前正给照相机增加新功能。(3)Look!The baby is being taken care of by h

28、er aunt.瞧!这个婴儿正被她婶婶照看。(4)A party is being held tonight.今晚将举行晚会。【练习】把下列句子的时态转换为现在进行时的被动语态。1.The workers are building a New Hope Primary School in this village.A New Hope Primary School in this village(by the workers).2.Maria is writing a report about the negative effects of this kind of food.A report

29、 about the negative effects of this kind of food_(by Maria).3.The scientists are studying dolphins at the research centre.Dolphins(by the scientists)at the research centre.4.Our country is sending two pandas to Britain.Two pandas to Britain by our country.5.He is drying the pan with a dishcloth(抹布).

30、The pan(by him)with a dishcloth.is being builtis being writtenare being studiedare being sentis being dried6.The pressure from her family is affecting her health.Her health by the pressure from her family.7.Tom is guiding a group of tourists through the busy street to the museum.A group of touristsb

31、y Tom through the busy street to the museum.8.The postman is putting Lilys letters into your mailbox.Lilys lettersinto your mailbox by the postman.is being affectedare being guidedare being putDear Anne,I m writing to tell you about my opinion on what we can do to save energy for a better future.If

32、we want to save energy then we need to change the way we behave.On the one hand,we need to buy applications that are more energy efficient and limit the amount of time we use them.On the other hand,to reduce the effect the greenhouse gases have on our atmosphere,we should plant more trees.As we all

33、know,trees can absorb carbon dioxide and so they help to counter the smoke produced by our cars.What we may also do is to turn off lights even for a few minutes,for good habits can contribute to reducing the negative effects of waste.In short,if everyone cares about our earth,our efforts will make a difference.Best wishes!Yours,Lihua再 见!

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