高中英语 Unit3SectionA同步精品课件 重庆大学必修5.ppt

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1、Section AGetting Ready and Reading2021/8/11 星期三1课堂互动探究课堂互动探究Unit 1预习多维感知预习多维感知 Section A2021/8/11 星期三2预习多维感知预习多维感知.词语翻翻译1at least _2above the level of the sea _3far away _4.be covered with/by._5make up _6play a role in._2021/8/11 星期三3答案：答案：1.至少至少2.海平面以上海平面以上3.遥遥远；深；深远4.被被所覆盖所覆盖5.形成、构成或形成、构成或组成某物成某物6

2、.在在方面起作用方面起作用2021/8/11 星期三4.句型必背句型必背1The flattening and swelling are too small to see.(两极的两极的)扁平和扁平和(赤道的赤道的)凸出都无法察觉。凸出都无法察觉。2The part of the soil in which crops grow is rarely more than 20 inches deep.能耕种庄稼的那部分土壤很少超过能耕种庄稼的那部分土壤很少超过20英寸。英寸。3It may take you weeks to climb Mount Everest，which is a litt

3、le more than 5.5 miles above sea level.你可能需要花费好几周的时间才能登上珠穆朗玛峰，你可能需要花费好几周的时间才能登上珠穆朗玛峰，它高出海平面它高出海平面5.5英里多。英里多。2021/8/11 星期三5.根据课文根据课文“Our Earth”完成短文完成短文The earth，the 1._ planet from the sun，made up of the shrinking and clumping together of a vast cloud of 2._ and gas in 3._ space，was formed at least 4

4、._ billion years ago.Seen from space，it looks like a perfect 5._.Nearly threequarters of the earths surface is covered with water，almost all of which makes up the oceans which play a very important 6._ in keeping the earths 7._ relatively stable.Onefourth of the earths surface is 2021/8/11 星期三68._，a

5、bout onefifth of which is always covered by ice.The very thin 9._ of air，soil and water form a very narrow band from the bottom of the sea to the top of the thickest part of the atmosphere，the biosphere，within which all living thing 10._.答答案案：1.third2.dust3.outer4.five5.ball6.role 7.temperature 8.la

6、nd 9.coverings10.exist2021/8/11 星期三7课堂互动探究课堂互动探究1.shrinkIt was formed from the shrinking and clumping together of a vast cloud of dust and gas in outer space.(page 34)词汇精研词汇精研词汇精研词汇精研2021/8/11 星期三8观察理解观察理解1)The market for their products is shrinking.2)We made it clear to them that we would not shrin

7、k from confrontation.3)My sweater shrank in the wash.2021/8/11 星期三9归纳拓展归纳拓展1)vt.&vi.收缩，收缩，(使使)皱缩，缩短，减少皱缩，缩短，减少2)vi.退缩，畏缩退缩，畏缩3)shrink from sth.畏缩，回避畏缩，回避(困难困难)等等2021/8/11 星期三10现学现用现学现用翻翻译填空填空1)They did not _ doing what was right.只要做得只要做得对，他，他们就无所畏惧。就无所畏惧。答案：答案：shrink from2021/8/11 星期三112.riseThis is

8、 a very small rise when compared with the size of the whole earth.(page 34)观察理解观察理解1)Tenants face a 20%rent rise.2)House prices are likely to rise towards the end of this year.3)He rose to his feet and tapped on the table as if to speak.2021/8/11 星期三12比比较较网站网站rise，raise，arise原形原形意意义用法用法过去式去式过去分去分词ri

9、se上升，上升，升起升起主主语自身移向更高自身移向更高的位置的位置roserisenraise举起，起，抬高抬高主主语的的动作作用于作作用于其他事物，也可表其他事物，也可表示抽象意示抽象意义，如提，如提高高觉悟等悟等raisedraisedarise出出现，发生生常用于事物或常用于事物或问题的出的出现arosearisen2021/8/11 星期三13现学现用现学现用单项填空单项填空2)No further financial problem _，but we still couldnt make both ends meet.AroseBaroseCaroused Draised2021/8

10、/11 星期三14解解析析：选B。考考查动词辨辨析析。句句意意：虽然然没没有有出出现进一一步步的的经济问题，但但我我们仍仍然然不不能能做做到到收收支支平平衡衡。rise自自然然事事物物/景景物物的的升升起起；arise(尤尤指指问题或或困困境境)发生生，产生生，出出现；arouse激激起起，引引起起(情情感感、态度度)；raise举起起，抬抬起起，抚养养，为及及物物动词。结合合语意及用法，意及用法，B项最佳。最佳。2021/8/11 星期三15翻翻译填空填空3)A new crisis has _.新危机已新危机已经出出现。4)Prices are _.物价正在上物价正在上涨。5)They _

11、 their offer to$500.他他们将出价抬高到将出价抬高到500美元。美元。答案：答案：3)arisen4)rising5)raised2021/8/11 星期三163.existThe earth is the only planet on which water can exist in liquid form on the surface.(page 34)观察理解观察理解1)Other wonderful world exists all around us.2)There exist many opportunities for regional development.

12、3)This law came into existence in 1918.2021/8/11 星期三17归纳拓展归纳拓展exist on.靠靠为生为生exist by.靠靠方式为生方式为生exist in.存在于存在于之中之中There exists/existed.某地有某地有；存在；存在existence n.存在；生存存在；生存come into existence 产生；开始存在产生；开始存在in existence 存在存在2021/8/11 星期三18现学现用现学现用6)I can hardly _ on the wage Im getting；there is no mone

13、y for luxuries.Aexcite BexitCexist Dexact解解析析：选C。句句意意：我我靠靠我我挣的的工工资简直直难以以糊糊口口，根根本本无无钱享享受受。本本空空缺缺少少的的是是谓语动词，exist意意为“生存生存”。2021/8/11 星期三194.at leastMany scientists believe that the earth，as well as the sun and the other planets in our solar system，was formed at least five billion years ago.(page 34)20

14、21/8/11 星期三20观察理解观察理解1)Itll take you at least 20 minutes to get there.2)Do you mind if I put the television on?No，not in the least!3)I like that least of all.2021/8/11 星期三21归纳拓展归纳拓展at least 起码，至少，不管怎样起码，至少，不管怎样at the very least 最起码最起码not the least(not in the least/not at all)一点也不，绝不一点也不，绝不least of a

15、ll(在许多在许多之中之中)最不最不的的2021/8/11 星期三22现现学学现现用用7)The house still needed a lot of work，but _ the kitchen was finished.Ainstead BaltogetherCat once Dat least解解析析：选D。句句意意：房房子子还需需要要很很多多工工作作，但但至至少少厨厨房房已已经完完工工。instead代代替替，而而不不是是；altogether总共共；at once立立刻刻，马上上；at least至至少少，符符合合句句意。意。2021/8/11 星期三235.make upAlmo

16、st all of this water makes up the oceans which play a very important role in keeping the earths temperature relatively stable.(page 34)2021/8/11 星期三24观察理解观察理解1)Women make up 56%of the student numbers.2)They two finally made up after two months time without even a single word.3)They made up for their

17、 inexperience by careful preparation for each lesson.4)The committee is made up of seven members.2021/8/11 星期三25归纳拓展归纳拓展make up for 弥补；补偿弥补；补偿make up with.与与言归于好言归于好be made up of.由由组成组成2021/8/11 星期三26现现学学现现用用8)He had no choice but to _ an excuse to explain his being late.Amake out Bmake upCmake up f

18、or Dmake over解解析析：选B。make out分分辨辨，理理解解；make up编造造，弥弥补；make up for弥弥补；make over改改做做，重重做做。根据句意可知根据句意可知选B。2021/8/11 星期三27句型巧析句型巧析句型巧析句型巧析1.原句展示原句展示The flattening and swelling are too small to see.(page 34)(两极的两极的)扁平和扁平和(赤道的赤道的)凸出都无法察凸出都无法察觉。2021/8/11 星期三28句法简析句法简析(1)tooadj./adv.to do sth.太太而不能做某事，而不能做某

19、事，表示否定意义。表示否定意义。That crossword is too difficult for me to guess.那种纵横字谜对我来说太难了，我猜不出来。那种纵横字谜对我来说太难了，我猜不出来。(2)某些形容词与某些形容词与too.to.句型连用时，句型连用时，too(very)表示肯定的意义。这些形容词多为表示情感的词，表示肯定的意义。这些形容词多为表示情感的词，如如glad，pleased，surprised，delighted，happy，easy，willing，ready，eager，anxious等。等。2021/8/11 星期三29They seemed to be

20、 too nervous and were too anxious to leave.他们好像过分紧张，并且十分急于离开。他们好像过分紧张，并且十分急于离开。(3)“too.to.”结构和结构和never，not等否定副词连用时，等否定副词连用时，表示肯定意义，意为表示肯定意义，意为“无论无论也不过分，越也不过分，越越好越好”。We are never too old to learn.活到老，学到老。活到老，学到老。2021/8/11 星期三30(4)如在如在too前加上前加上only，but，all，simply或或just时，时，表示肯定意义。表示肯定意义。Sadly this kind

21、 of rude behaviour is becoming all too common these days.如今这种粗鲁行为正变成常见之事，令人悲哀。如今这种粗鲁行为正变成常见之事，令人悲哀。2021/8/11 星期三31现学现用现学现用1)Must I turn off the gas after cooking?Of course.You can never be _ careful with that.Atoo BveryCso Denough解解析析：选A。考考查固固定定用用法法。never be too careful意意为“再再怎怎么么仔仔细也也不不为过，越越仔仔细越越好好”

22、。故故答案答案为A。2021/8/11 星期三322.原句展示原句展示It may take you weeks to climb Mount Everest，which is a little more than 5.5 miles above sea level.(page 35)你可能需要花费好几周的时间才能登上珠穆朗玛你可能需要花费好几周的时间才能登上珠穆朗玛峰，它高出海平面峰，它高出海平面5.5英里多。英里多。2021/8/11 星期三33句法简析句法简析It takes/took sb./sth.some time to do sth.花费某人花费某人(多长时间多长时间)做做；需要

23、某人；需要某人(某种特殊品质，如某种特殊品质，如耐力、努力等耐力、努力等)去做去做。it是形式主语，真正的是形式主语，真正的主语是不定式。主语是不定式。1)It takes five hours to go from New York to London.从纽约到伦敦需要从纽约到伦敦需要5个小时的时间。个小时的时间。2021/8/11 星期三342)It takes strength and stamina to be a long-distance runner.要想成为一名长跑运动员，需要有体力和耐力。要想成为一名长跑运动员，需要有体力和耐力。3)It takes so long to l

24、ist everything that Oprah Winfrey has done.你无法用三言两语来概括奥普拉你无法用三言两语来概括奥普拉温弗瑞的个人成就。温弗瑞的个人成就。2021/8/11 星期三35现学现用现学现用2)The accident _ him his life.It _ 5 years for his wife to _ off the debts he left.Aspent；cost；take Btook；spent；payCcost；spent；take Dcost；took；pay解解析析：选D。cost sb.sth.“使使某某人人失失去去(生生命命，健健康康等等)”；It takes some time for sb.to do sth.“花花费某某人人时间做某事做某事”；pay off“还清清”。2021/8/11 星期三362021/8/11 星期三37