人教新课标高中英语必修3-unit4ppt课件

.,1,Unit4Astronomy:thescienceofthestars,漫画欣赏,.,2,短文填空根据课文HOWLIFEBEGANONTHEEARTH完成下列短文Theearthwasjustacloudof_afterthe“BigBang”.Theearthloudlywithfireandrock.Theyweretoproducemanythings，whichweretomaketheearthsatmosphere.Astheearthcooleddown，waterbegantoappearonitssurface.Itallowedtheearthtodissolvegases.Thenlifebegantodevelop.,dust,exploded,intime,hamful,.,3,Smallplantsandfilledthefirstoceansandseaswithoxygen.Thisencouragedtheofearlyshellfishandfish.Landanimalssuchasinsects，reptilesanddinosaursappearedaftergreenplantsappeared.Smallcleveranimalsallovertheearth.Theyareputtingcarbondioxideintotheatmosphere，whichheatfromtheearthintospace.Whetherlifewillcontinueontheearthfrommillionsofyearstocomewillwhetherthisproblemcanbesolved.,multiplied,development,spread,toomuch,prevents,dependon,.,4,.单词拼写根据首字母或者汉语注释写出单词的正确形式。1Imina_(迷惑)astohowtocopewiththenewsituation.2Hewouldneverbe_(有害的)toanyone.3One_(理论)aboutthemoonisthatitisapiecebrokenofftheearth.4Theantswere_(拖)piecesofcorn.,puzzle,harmful,theory,pulling,.,5,5OurEnglishteacherisamanof_(宗教信仰)6Studentsshouldpayspecialattentionto(基础)science.7Aballoonfinthewind.8Ifyoumfivebysix，youllgetthirty.9Inthisvconflict，about20commonpeopledied.10Mancantlivewithoutwaterando.,religion,fundamental,loated,ultiply,iolent,xygen,.,6,.短语填空1DontworryImsurethingswillgetbetter_.2Wecongratulatedheronafinehealthybaby.3Nowthatwehavefinisheddesigning，thecompany，shoulddotheconstructingwork.4Thewallallthelight.Itshouldbepulleddown.,intime,givingbirthto,initsturn,blocksout,.,7,5Shetoldherchildtowhenhewascrossingthestreet.6Usingthecomputerisntdifficultonceyouit.7_youaregrownup，youshouldnotrelyonyourparents.8Shouldanotherworldwar_，whatwouldbecomeofhumanbeings?9Thecrowdwhentheysawtheteamsarrive.10Tellthechildrennottothecave.,watchout,getthehangof,Nowthat,breakout,cheeredup,getcloseto,.,8,.完成句子1(随着地球的冷却)，waterbegantoappearonitssurface.(cool)2Whetherlifewillcontinueontheearthformillionsofyearstocomewill_(取决于这个问题能否得到解决)(depend)3Walkingdoesneedabitofpractice(因为引力改变了)(now),Astheearthcooleddown,dependonwhetherthisproblemcanbesolved,nowthatgravityhaschanged,.,9,.模仿造句1Whatifwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.(P25，L78)betodo.必将会做翻译年轻时，他不知道自己以后会举世闻名。_.,Asayoungmanhedidntknowhewastowinworldfame,lateron.,.,10,2Theywereintimetoproducecarbon，nitrogen，watervapourandothergases，whichweretomaketheearthsatmosphere.(P25，L11)intimetodosth.来得及干某事翻译我们正好赶上了早班车_3Theyareputtingtoomuchcarbondioxideintotheatmosphere，whichpreventsheatfromescapingfromtheearthintospace.(P25，L4849)prevent.(from)doing.阻止某人干某事；防止某事发生翻译他的头痛没有阻止他第二天去上课。_,Wewereintimetocatchtheearlybus.,Hisheadachedidnotpreventhim(from)goingtoclassthenextday.,.,11,4LastmonthIwasluckyenoughtohaveachancetomakeatripintospacewithmyfriendLiYanping，anastronomer.(P30，L23)beadj.enoughtodo足以做翻译这个男孩子的年龄足够大了，能参军了。_5ButwhenItriedtostepforward，IfoundIwascarriedtwiceasfarasontheearthandfellover.(P31，Para.3)twiceas.as.是的两倍翻译他跑起来速度比我快一倍。_,Theboyisoldenoughtojointhearmy.,HerunstwiceasfastasI.,.,12,6“Oh，dear，”Icried，“walkingdoesneedabitofpracticenowthatgravityhaschanged.”(P31，Para.3)nowthat.既然/由于翻译既然大家都到了，咱们开会吧。_,Nowthateveryoneishere，letsbeginourmeeting.,.,13,核心词汇梳理,1unlikeprep.与不同；不像；非的特征归纳(1)beunlike.相当于bedifferentfrom.(2)unlikesth./sb.位于句首，常用于表示对比。(3)unlike的反义词为like。运用：完成句子,.,14,(1)音乐与其他艺术形式不同。Musicisquite.(2)本系统与多数系统不同，极易安装。_，thisoneisveryeasytoinstall.(3)迟到这么久可实在不像他平时的作风。_tobesolate.,unlikeanyotherartform,Unlikemostsystems,Itsveryunlikehim,.,15,2.harmfuladj.有害的，伤害的搭配熟记下列搭配beharmfulto对有害doharmtosb.dosb.harm对某人有害处domoreharmthangood弊多利少cometonoharm没受损害翻译：吸烟有害健康。_,Smokingisharmfultohealth.,.,16,3existvi.存在；生存联想existas作为而存在；以形态存在existin存在于中existon靠生活生存搭配thereexist(s)表示“存在/有”，此时exist不用进行时。拓展thereexists表示“存在/有”，是“therebe”句型的延伸，类似的还有therestand(s)，therelie(s)therelive(s)，thereoccur(s)等。,.,17,完成句子(1)少数人认为世界上存在恶魔。Severalpeoplebelievethedevil_intheworld.(2)好人到处都有。_warmheartedpersonseverywhere.,exists,Thereexist,.,18,4puzzlen.谜；难题vt.&vi.(使)迷惑；(使)为难搭配用适当的介词或副词填空(1)puzzle_/_sth.为苦思冥想(2)puzzlesth._想出；苦思而求得用相关短语翻译下列句子。(3)凯伦整个晚上都在想这个问题。Karenthequestionallevening.(4)他终于想出了如何解决这个问题。Hefinallyhowtosolvetheproblem.,over,about,out,waspuzzlingover,puzzledout,.,19,用puzzle的适当形式填空。(5)Hestaredatthewordsincomplete.(6)Ithinkitsreallya_problem.Ireallydontknowwhichtochoose.(7)Shelistenedwitha_expressiononherface.(8)Imdoingaword_inthisnewspaper.,puzzlement,puzzling,puzzled,puzzle,.,20,5massn.质量；团；块；大量识记amassof/massesof大量的；大批的；许多提示amassof或massesof既可修饰复数名词，亦可修饰不可数名词。完成句子(1)大量的书籍摊满了整个房间。_coveredeverysurfaceintheroom.,Massesofbooks,.,21,(2)我们仍然可以抽出许多时间。Westillhad_tospare.辨析themassof.大部分；大多数(3)现代人大多受到电视的影响。areinfluencedbytelevision.识记inamass大量地；大批地(4)大批的运动爱好者在赛前就来到了体育馆。Sportsfanscametothestadium_beforethegame.,massesoftime,Themassofmodernpeople,inamass,.,22,重点短语例释,1intime及时；早晚；迟早完成句子(1)我们到达车站时，刚好赶上那班车。Wegottothestationjust_catchthebus.(2)他早晚会明白什么才是对的。_hewillseewhatisright.,intimeto,Intime,.,23,提示intimetodosth./forsth.来得及干某事；正好及时赶上(3)我刚好来得及赶上那班飞机。Iwasjust_theflight.(4)大夫正好及时赶到挽救了他的生命。Thedoctorgottherejust_hislife.,intimefor,intimetosave,.,24,2cheerup感到振奋；欢呼；喝彩；口振作些完成句子(1)你需要点东西让自己振奋一下。Youneedsomethingto_.(2)我要带安吉到外面转转，让她振奋起来。ImtakingAngieoutto_.(3)打起精神来，曼迪！_，Mandy!,cheeryourselfup,cheerherup,Cheerup,.,25,3watchoutvi.当心；提防；密切注视Watchout!Theresacarcoming.注意！有辆车开过来了。提示watchout是不及物动词短语，常与介词for连用。补全下列英文句子。(1)当心，别把桌子上的纸弄脏了。_！Dontdirtthepaperonthedesk.(2)注意一个戴黑帽子的高个子男人。inablackhat.(3)我们必须小心公共汽车上的小偷。Wemust_onthebus.,Watchout,Watchoutforatallman,watchoutforthieves,.,26,疑难语句细解,1LastmonthIwasluckyenoughtohaveachancetomakeatripintospacewithmyfriendLiYanping，anastronomer.我的朋友李彦平是一位宇航员。上个月我有幸得到一个机会同他一道去太空旅行。句型beadj.enoughtodo足够能干拓展enough作副词时可以修饰形容词、副词或动词，放在被修饰的形容词、副词或动词之后，再加动词不定式或介词for短语构成句型：beadj.enoughtodosth./forsth.意思为“足够可以”。,.,27,(1)她已到自己作决定的年龄了。Sheis_decideforherself.(2)屋子不够大容不下做礼拜的人们。Theroomisnt_holdthepeoplewhoattendchurch.(3)这篇课文太耐读了。Thistextis.(4)这种游戏我训练得不够。Ihadnt.,oldenoughto,bigenoughto,longenoughforreading,trainedenoughforthegame,.,28,2.ButwhenItriedtostepforward，IfoundIwascarriedtwiceasfarasontheearthandfellover.而当我试着向前迈步的时候，我发觉我被送出去很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。句型twiceas.as.“是的两倍”(1)这棵树是那棵树的两倍高。_(2)那个男孩跳的高度是我的两倍。_,Thistreeistwiceastallasthatone.,TheboyjumpstwiceashighasI.,.,29,归纳,英语常见表达倍数的句型如下：,倍数,as.as.,比较级than.,he名词of.what从句,asadj./adv.的原级asasmany/much名词as,adj./adv.比较级than.more名词than.,说明：在“倍数then.of.”结构中，常用的名词size，height，length，width等。另外，两倍用twice或double，不到一倍用分数表示，三倍或三倍以上一般用times来表示。,.,30,3.“Oh，dear，”Icried，“walkingdoesneedabitofpracticenowthatgravityhaschanged.”“天哪！”我大声说，“既然重力改变了，走路也的确需要练一练了。”句型nowthat的意思为“既然，由于”，从属连词，引导原因状语从句，在口语中可以省略that。联想与nowthat意思相近的有seeingthat，since等。,.,31,(1)既然你提到了，我要记在心里。youhavementionedit，Ikeepitinmind.(2)既然已完成了工作，你就应该好好休息一下。Yououghttohaveagoodrest_youvefinishedthework.(3)既然教授的报告很有教育意义，为什么不去听呢？_theprofessorslectureisveryinstructive，whynotgoandattendit?(4)鉴于你有足够的钱，你借给我一些吧。_youhaveenoughmoney，youlendmesome.,Nowthat,nowthat,Since,Seeingthat,.,32,技巧四：利用原词复现，寻找近义词。完形填空题中常有某一词语在语篇中重复出现的现象。词语复现使语篇中的句子相互衔接，从而构成一个意义完整的有机整体。在阅读文章的过程中，有时也会出一些与选项意义紧密相连的同义词或近义词。要学会充分利用这些词所提供的有效信息进行合理的推测和判断，选出正确答案。如：,.,33,“Themerchantofdeathisdead.”thearticleread.“Dr.AlfredNobel，whobecame23(rich)byfindingwaystokillmorepeoplefasterthaneverbefore，diedyesterday.”Nobelwas24(upset)tofindoutnotthathehaddied，butthat，whenhistimewasup,hewouldbethoughtofonlyasonewhoprofitedfrom25anddestruction.(2009广东卷)25A.deathBdiseaseCtroubleDattack解析：语境为“人们会认为他只是一个从死亡和毁灭中获取利益的人”，前文的“killmorepeople”中也有提示。答案：A,.,34,ThefirsttimeIremembernoticingthecrossingguardwaswhenhewavedtomeasIdrovemysontoschool.He16(presented)mewithapuzzleallbecausehewavedtomelikesomeonedoes17(on)seeingaclosefriend.Thenonedaythe22wassolved.(2009天津卷)22A.argumentBdisagreementCmysteryDtask解析：前文讲到“那位交警像朋友一样向我挥手，使我困惑”，这里应是“这个谜有一天终于解开了”。mystery和puzzle意思相近。答案：C,.,35,典例Robert，whohadmadeseveralimportantmedicalbreakthroughs，wasinterviewedbyareporter.Thereporteraskedhimwhyhewasmuchmorecreativethana(n)1person.Whatsethimfarapartfromothers?Herespondedthatitallcamefroma(n)2withhismother.Whenhewastwo，hewastryingto3abottleofmilkfromtherefrigeratorwhenhelosthisgrip(抓)onthe4bottle.Itfell，themilkinitspillingalloverthekitchenfloor.,.,36,Insteadofscoldinghim，hismothersaid，“Robert，wheneveryoumakeamesslikethis，5youhavetocleanitup.So，howwouldyouliketodothat?Youcanuseasponge(海绵)，atoweloramop.Whichdoyou6？”Hechosethespongeandcleanedupthe7milkwiththehelpofhismother.Thenhismothertaughthimhowtoeffectivelycarryabigmilkbottle.Theboylearnedthatifhegraspedthebottleatthetopwithboth8，hecouldcarryitwithoutdroppingit.Whatawonderful9！,.,37,Itwasatthatmomentthatheknewhedidntneedtobe10tomakemistakes.Instead，helearnedthatmistakes