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2019-2020学年外研版高一英语必修2同步课件:UNIT 6 EARTH FIRST SECTION C .ppt

1、UNIT 6 Ear th first Section C Developing ideas,Presenting ideas&Reflection 核心词汇 词汇一 majority n.多数,大多数(人或物)教材原句.and the majority of us take steps to save energy and reduce waste and pollution.并且我们大多数人都采取措施来节约能源,减少浪费和污染。要点必记 in a/the majority 占大多数 a/the majority of.大多数 反minority n.少数;少数民族题组练领悟方法 学法点拨

2、(1)The majority of+复数名词+复数谓 语动词+其他(2)The majority of+集合名词+单数/复数谓语动词+其他(3)A majority of+复数名词+复数谓 语动词+其他 单词积累 major adj.主要的;主修的(反义词:minor)n.主修科目,专业 vi.主修 major in 主修 单句写作(1)The agreement seems to be impossible because _(大多数成员反对).(2)Only (少数的)people in that city do not have a car while the people takin

3、g the subway to work are (占多数).单句语法填空(3)To my surprise,the majority of the students (be)for his proposal.(4)One-third of the country (be)covered with trees and the majority of the citizens _(be)black people.(5)In my opinion,the majority of the committee (have)arrived.is the majority of the members a

4、re against it a minority of in the/a majority are are has/have 词汇二 take steps to do sth.采取措施做某事.and the majority of us take steps to save energy and reduce waste and pollution.并且我们大多数人都采取措施来节约能源,减少浪费和污染。要点必记 take measures to do sth.采取措施做某事 take action to do sth.采取行动做某事 归纳拓展 step up 加紧,加强,促进;走上前去step

5、 aside 让位,退位 step by step 逐步地out of step 不合拍,不一致 mind/watch your step 走路小心;言行小心 单句语法填空(1)The wild population of koalas is in danger of dying out,so we should take steps _(protect)them.(2)The earth is so heavily polluted.It is time for us to take measures (protect)the environment.(3)Firefighters took

6、 action immediately (stop)the fire spreading.(4)Jack stepped his pace because he didnt want to be late again.to protect to protect to stop up 词汇三 mistake.for.把错当成 教材原句 Plastic bags cause litter and are a danger to wild animals,which mistake them for food.塑料袋造成垃圾,对野生动物来说是一种危险,它们会把塑料袋误认为是食物。要点必记 by mi

7、stake 错误地;弄错 make a mistake 犯错误 mistaken adj.(见解或判断上)错误的;不正确的 be mistaken about.误解;对持有错误的见解 单句语法填空(1)A woman mistook him a well-known actor,and asked him for his autograph(亲笔签名).(2)Tom must have taken your dictionary mistake.(3)Dont worry,we all make (mistake).单句写作(4)I think you must be (把我错当成)someo

8、ne else.(5)I took your bag instead of mine (错误地).for by mistakes mistaking me for by mistake 词汇四 break down 分解;(机器)发生故障;(计划、谈判等)失败;垮掉 教材原句 It takes hundreds of years for plastic to break down,but much less time for paper.塑料需要几百年才能分解,而纸分解的时间则要短得多。要点必记 break up 破碎;解散break into 强行闯入 break in 强行进入;打断,搅扰

9、break away from 脱离;逃脱 break out(战争、火灾等)突然发生,爆发 break through 突破break off 中断;折断 单句写作(1)He had to pause from time to time to wipe the sweat from his forehead,because the air-conditioning system _ _(出故障).(2)2016 北京卷Norton Sound was covered with ice,which could sometimes _ _(破裂)without warning.(3)A big

10、fire _ _(爆发)last night and its cause is being looked into.(4)When he got home,he found his house _ _(闯入).(5)Burglars _ _(强行进入)through the bedroom window.broke down break up broke out broken into broke in 词汇五 amount n.数量,数额 教材原句 However,making a paper bag uses four times as much energy as making a pl

11、astic bag and up to three times the amount of water.然而,制造一个纸袋所消耗的能量是制造一个塑料袋的四倍,用水量是制造塑料袋的三倍。要点必记 a large amount of=large amounts of 许多,大量 学法点拨 A large amount of+不可数名词+单数谓语动词+其他.Large amounts of+不可数名词+复数谓语动词+其他.单句语法填空(1)A large amount of money (spend)building more modern kindergartens so far this yea

12、r.(2)Large amounts of money (waste)buying useless things every year.(3)With more forests being destroyed,a large amount of good earth (be)being washed away each year.单句写作(4)English learning involves (大量)memory work.(5)He wasted (大量)time playing computer games.has been spent are wasted is a large amo

13、unt of large amounts of 词汇六 remove v.移走,搬走;去除,去掉;脱去;免除的职务,开除 教材原句 To make sure your appliance is in fact off,remove the plug from its power supply.为了确保您的家用电器实际上是关闭的,请拔掉电源插头。要点必记 remove sth.from sp.把某物从某地搬走(移开)remove sb.from sth.把某人从职位免职 remove sb.from school 勒令某人退学 remove ones doubt/trouble 消除某人的疑虑/

14、烦恼 remove the mud from your shoes 把你鞋上的泥除掉 单句语法填空(1)To our amazement,the official was removed office.(2)Youd better have the old furniture (remove).(3)Once formed,the bad habits are hard (remove).单句写作(4)Youd better perform well to (消除他的疑虑).(5)Only after he (摘掉墨镜)did I recognize him.(6)He (被开除了)the p

15、ost because he broke the rules and regulations of the company by design.from removed to be removed remove his doubt removed his dark glasses was removed from 词汇七 take.into account 把考虑进去(=take account of)教材原句.even taking into account its transport.即使考虑到运输。要点必记 account for 是的原因,解释;(在数量或比例上)占 gave sb.a

16、(full)account of(详细)描述 open/close an account 开户/销户 on all accounts 无论如何 on account of 因为,由于 on no account 决不(在句首时,句子用部分倒装语序)单句语法填空(1)Coursework is taken account as well as exam results.(2)She has the habit of keeping an account her daily activities.(3)It is said that body language accounts 55 per ce

17、nt of a first impression while what you say just 7 per cent.单句写作(4)The poor weather may have (是的原因)the increase in the number of people who cough day and night.(5)He was too shocked to (描述)what had happened.into of for accounted for give an account of 词汇八 campaign(1)n.(宣传)活动;战役(2)vi.参加运动;作战 教材原句 We

18、are writing this letter to call on everyone to take part in the Clear Your Plate campaign.我们写这封信是为了号召大家参加光盘运动。要点必记(1)a campaign for/against 争取/反对 的运动 a campaign for equal rights 争取平等权利的运动 launch/begin a campaign 发起一场运动(2)campaign for/against 参加争取/反对的运动 campaign to do 为了做而参加运动 单句语法填空(1)They have laun

19、ched a campaign (protect)ancient buildings in urban areas.(2)They are campaigning (prevent)the wild animals being hunted.单句写作(3)He joined a group (发起运动反对)the destruction of the rain forests.(4)Since then,they (发起一场伟大的运动)to make the beaches safer for swimmers and tourists.to protect to prevent campai

20、gning against have launched a great campaign 词汇九 urge(1)v.竭力主张,强烈要求,敦促 (2)n.强烈的欲望,冲动 教材原句 It urges people to save food by not wasting anything on the dining table.它敦促人们节约食物,不要在餐桌上浪费任何东西。要点必记 urge sb.to do sth.力劝/敦促某人做某事urge that.力劝/敦促 an urge to do sth.做某事的冲动 学法点拨 urge 后跟从句时,从句常用虚拟语气,从句谓语用“should+动词

21、原形”,should 可以省略。单词积累 urgent adj.紧急的;急切的urgently adv.紧急地;迫切地 urgency n.紧急,紧迫 单句语法填空(1)China urges the relevant parties (keep)calm and adopt a responsible attitude.(2)They might then urge their parents and other people (give)up smoking,too.(3)He had a sudden urge (design)a poster personally.(4)I have

22、an (urge)message.Call me back as soon as possible.单句写作(5)Teachers urged parents (不要允许)their children under 12 to ride bicycles to school for safety.(6)My teacher urged that (我们在课下时应多做运动).to keep/(should)keep to give to design urgent not to allow/(should)not allow we(should)do more exercise after cla

23、ss 词汇十 concerned adj.焦急的,担忧的 教材原句 We are concerned that.我们担心 要点必记(1)be concerned about 关心,挂念as far as sb./sth.be concerned 就而言 be concerned with 与有关;涉及(2)concern vt.(使)担忧;涉及;关系到n.担心,忧虑;关注;利害关系 concern oneself about 对感兴趣with concern 关切地 show concern about/for 对表示担心/关心 一言辨异 As far as I am concerned,ed

24、ucators should be concerned about the problems that are concerned with the healthy growth of the children and concern themselves with/in the work of education.依我之见,教育工作者应该关心与儿童健康成长有关的问题,并使自己参与教育工作。单句语法填空(1)As far as Im (concern),the idea is crazy.(2)In fact,John has never been (concern)about what ot

25、hers think of him.(3)My teacher is looking at me concern.(4)Several parents showed their great concern their childrens safety at school.(5)The meeting was concerned the system reforms and everyone present was concerned their own interests.(6)What (concern)me is our lack of preparation for the change

26、.concerned concerned with about with about concerns 单句写作(7)The (忧心忡忡的家长)were all (担心)the childrens safety.(8)(就我而言),reading English newspapers is of great help to our English study.(9)Please come here on time.The matter (与有关)all of you.concerned parents concerned about As far as I am concerned is co

27、ncerned with 词汇十一 contribute(1)v.促成,造成(某事发生)(2)vt.&vi.捐助,捐赠,贡献;投稿,撰稿 教材原句 Look at the three items that contribute to a carbon footprint.看看造成碳足迹的三个因素。要点必记(1)contribute(.)to/towards(把)捐献/贡献给 contribute to.是 的原因之一;导致;有助于 contribute(sth.)(to sth.)(为)撰稿();(向)投稿()(2)make a contribution/contributions to/to

28、wards.为作贡献 一言助记 Many people contributed money to the poor boy,which contributed to his return to school.A writer wrote a story about this and contributed it to a press.许多人给那个贫穷的男孩捐款,这使他重返校园。一位作家写了一个关于此事的故事并把它投给了一家出版社。单词积累 contribution n.捐款;贡献 contributor n.捐款人;撰稿人 写出下列句中contribute 的含义(1)She contribu

29、ted a number of articles to the magazine._(2)Alcohol contributes to many deaths a year in this country._(3)The volunteers contribute much time to the activity._ 单句语法填空(4)The Song Dynasty contributed three great inventions the world.(5)The girl is intelligent and often contributes that newspaper.(6)H

30、e got promoted for his (contribute)to the company.(7)The famous writer is one of several authors (contribute)to the book.单句写作(8)Eating too much and lack of exercise (导致)his being too fat.(9)Everyone of us should (为作贡献)our society.投稿 造成,导致 贡献 to to contributions contributing contribute to make a cont

31、ribution to 词汇十二 average(1)adj.平均(数)的;正常的;普通的 (2)n.平均数;平均水平 教材原句 The average score of our group is.我们组的平均成绩是 要点必记(1)on(the/an)average 平均an average of 平均有 above average 平均水平以上below average 平均水平以下 the average of.的平均数(2)the average rainfall of.的平均降 雨量 an average age of.的平均年龄average build/height 平均身高 th

32、e average size 平均大小 单句语法填空(1)The provinces rainfall this year is average.Many plants are short of water and have been dead.(2)average,90%of students per class in this school are experienced in studying maths.(3)2015 重庆卷Last year was the warmest year on record,with global temperature 0.68 _ the avera

33、ge.单句写作(4)My English is (在平均水平之上).(5)(平均起来),each member earns 5 per hour.below On above above average On average 重点句式 句式一 动名词作主语 教材原句 However,making a paper bag uses four times as much energy as making a plastic bag and up to three times the amount of water.然而,制造一个纸袋所消耗的能量是制造一个塑料袋的四倍,用水量是制造塑料袋的三倍。要点

34、必记(1)单个动名词作主语,谓语动词用单数形式。(2)动名词和动词不定式都可以作主语。动名词作主语,表示一般或抽象的多次性的行为;动词不定式作主语往往表示具体的或一次性的动作。归纳拓展 动名词短语作主语,常用it 作形式主语。常用于以下固定句型:It is no use/good doing sth.It is a waste of time doing sth.Its useless/fun/worthwhile doing sth.Its hardly any good/use doing sth.单句语法填空(1)(read)is very important in learning E

35、nglish.(2)Its no use (argue)with him.(3)It is a waste of time (talk)about such a thing.(4)It is no good (complain).(5)(finish)the task will take a long time.(6)(know)basic first-aid techniques will help you respond quickly to emergencies.(7)(hear)how others react to the book you have just read creat

36、es an added pleasure.(8)(be)online is no excuse for being rude,and you dont want to become a target for a troll or cyberbully.单句写作(9)每天玩电脑游戏简直就是浪费时间。Its every day.(10)打翻牛奶,哭也没用。(覆水难收)_ Reading arguing talking complaining To finish Knowing Hearing Being a waste of time playing video games It is no us

37、e crying over spilt milk.句式二 倍数表达法 要点必记 倍数表达法常用的几种形式:(1)倍数+as+形容词/副词的原级+as+其他(2)倍数+形容词/副词的比较级+than+其他(3)倍数+the+size/height/weight/length/width/depth.+of+其他(4)倍数+what 从句 学法点拨(1)上述结构中的“倍数”部分也可用分 数、百分数代替。(2)表示两倍时,一般用 twice/double;times 表示“倍数”,一般用于表示三倍或三倍以上。单句语法填空(1)Peters jacket looked just the same as

38、 Jacks,but it cost twice much as his.(2)This department is twice (big)than that one.(3)Our manager presented a report three times the (long)of mine.一句多译 这条路的长度是三年前的四倍。(4)The road is four times it was three years ago.(5)The road is four times it was three years ago.(6)The length of the road is four t

39、imes it was three years ago.as bigger length as long as the length of what what 句式三 强调句型 教材原句 It is the production of food,not its transport,that uses most of the energy and produces most of the greenhouse gases.消耗最多能源和产生最多温室气体的是食品生产,而不是食品运输。要点必记(1)强调句型的结构:It is/was+被强调部 分+that+其他部分。该句型可强调主语、宾语、状语等,

40、但不能强调谓语。(2)一般疑问句:Is/Was it+被强调部分+that+其他部分?特殊疑问句:疑问词+is/was+it+that+其他部分?(3)not.until.的强调句型:It is/was not until.that+其他部分.误区警示(1)强调句型中的 it 不能用其他词代替。(2)用is 还是was 要根据原句的时态而定:属于现在或将来时间范畴的所有时态用is;属于过去时间范畴的所有时态用was。(3)被强调部分指人时,可以用 who 代 替that,其他情况一律用that。学法点拨 判断句子是否为强调句型的方法:去掉it is/was 与that/who,剩余部分若结构完

41、整、句意明确,则为强调句型,否则就不是。单句语法填空(1)It was in the living room Mary argued with her husband.(2)Was it yesterday the building was damaged?(3)Who was it lost patience with you?(4)was because Jack got up late that he missed the ferry.(5)It was not until the professor came they began the test.(6)It was the prof

42、essor helped me a lot when I was at university.(7)It is all of us that (have)a responsibility to protect the environment.句型转换 I met an old deskmate at the railway station yesterday.(8)强调主语:_(9)强调宾语:_(10)强调地点状语:_(11)强调时间状语:_that that that It that that/who have It was I that/who met an old deskmate at the railway station yesterday.It was an old deskmate that I met at the railway station yesterday.It was at the railway station that I met an old deskmate yesterday.It was yesterday that I met an old deskmate at the railway station.

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