how-life-began-on-the-earth语言点

HowLifeBeganontheEarthLanguagestudyUnit4Whydidmanyspecies(物种)likethedinosaursdieout?Airpollution：smogsmog=smoke+fogMovieaboutthesmoglay-laid-laid-laying①layeggs下蛋lay放,把..放在..;产卵原句再现1:Theylaideggstooandexistedontheearthformorethan140millionyears.Farmerslaystraws(秸秆)inthefields.eg.Thehenlaidseveneggs.Languagestudylie,lie,lay的区别如下:Tips:lay(laid;laid;laying)放置;产卵lie(lay;lain;lying)躺;位于lie(lied;lied;lying)说谎顺口溜:规则的“说谎”（直接-d）不规则的“躺”(完全不一致)躺完就“下蛋”（lay）下蛋不规则返回Tomwho____onthegrass______tomethatthehenhad____twoeggs.layliedlaid返回②existvi.存在；生存Withoutair,wecan’texistevenforoneminute.没有空气，我们甚至连一分钟都生存不了。(1)Thereexist...存在……；有……(2)existencen.存在；生活comeintoexistence=comeintobeing产生；开始存在Languagestudy返回1．①Manyproblemsareexistingonyourpaper（改错）.②Dinosaursoncewereexistedontheearth（改错）Thereexisteddinosaursontheearthalongtimeago.2．翻译句子很久以前地球上存在着恐龙(dinosaur)。ExerciseThereexistsomefactoriesinmyhometown.我家乡有些工厂(factory)。exist________________existedWhatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.harmfuladj.有害的harmlessadj.无害的harmn./v.损害，伤害，危害beharmfultosb./sth.=doharmtosb./sth.=dosb/sthharm对…有害原句再现2：Thepollutedair_________________________________ourhealth.isharmfulto/doesharmto1.手机对家庭关系造成危害。ExerciseThecellphones_____________________________ourfamilyrelationship.areharmfulto/doharmto2.被污染的空气对人的健康有害.Others,calledamphibians,wereabletoliveonlandaswellasinthewater.另外一些叫作两栖动物,它们既能在活水里生存，也能在陆地上生存。AaswellasB表示“(除B之外)A也;既B又A”.如:I’mlearningFrenchaswellasEnglish.我学英语之外还学法语。原句再现3：HeaswellasI______(like)rockmusic.likesExerciseHegrowsflowersaswellasvegetables.他既种菜也种花.Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop.该结构中，it作形式宾语，真正的宾语是后面的不定式或that从句。常用于此结构的动词：make,think,believe,find,consider,feel等。that从句1)chainreaction连锁反应2）Makeitpossibleforlifetodevelop.使生命的发展成为可能makeit+adj./n.+todosth.使某人做某事……原句再现4：返回(2011·天津高考)Wefeel______ourdutytomakeourcountryabetterplace.A．itB．thisC．thatD．one解析：选。考查代词。句意：我们认为把我们的国家建设得更好是我们的职责。根据句意可知，it在句中作形式宾语，代替后面的不定式。直击高考A1)这场雨使我们走远路很困难。Therain________________________________longdistances.2)他每天早晨六点起床，这已成为一种习惯。He___________________getupatsixeveryday.3)蒂娜明确表示她将离开这家公司。Tina_____________________shewouldleavethecompany.madeitdifficultforustowalkmakesitaruletomadeitclearthatExerciseTheyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospace.阻止某人做某事:preventsb.(from)doingsth.stopsb.(from)doingsth.keepsb.fromdoingsth.注意：keepsb.fromdoingsth.中from不可省略,被动语态中,他们中的from都不可省。原句再现5：Noonecan________thisplan______beingcarriedout.1.人们被拦在了燃烧着的大楼外面(stop…from)。2.谁也不能阻止这个计划的实施。preventfromPeoplewerestoppedfromenteringtheburningbuilding.ExerciseComparethetwosentences1.Marykeptthelightburningallnight.2.Marykeptthelightfromburningallnight.拓展keep…doing持续做某事keep…..fromdoing阻止干某事Challengeyourself原句再现：…itwasnotclearwhethertheshapewouldlastornot.（para.2）1._________theshapewouldlastornotisadifficultquestiontoanswer.3.Theproblem_________theshapewouldlastornotpuzzlesus.2.Wewonder_________theshapewouldlastornot.4.Theproblemis________theshapewouldlastornot.AWhetherwhetherwhetherwhetherBCD①Whether四用法：A同位语从句B表语从句C主语从句D宾语从句②Translation：Theairinmyhometown1.There_________(存在，有)alotoffactoriesinmyhometown.3.Theysentout(释放)plentyof________(有害的)gasesintotheatmosphere.existharmful2.Manyfarmers_____(放置)strawsinthefieldsandburnthemafterharvesting.lay4.Manytrees__________(和)grassaredestroyedforindustrialland(工业用地).aswellas5.这产生了一系列的反应。__________________________________________________.ItproducedachainreactionChallengeyourself6.雾霾让人们呼吸变得困难。Thesmogmakesit_____________forpeople_________.7.雾霾阻止人们外出活动。Thesmog_________us______goingoutandtakingactivities.difficult/hardtobreathepreventsfrom8.这一问题能否解决取决于当地政府是否及时采取措施(takemeasures)。________theproblemcanbesolved_________________thelocalgovernmenttakesmeasures______.Whetherwhetherdependsonintime②Translation：TheairinmyhometownChallengeyourselfMini-writingTips:连句成篇,必要时加适当的连词。TheairinmyhometownShowtimeThere_________(exist)alotoffactoriesinmyhometown.Manyfarmers_____(lay)strawsinthefieldsandburnthemafterharvesting.Theysentout(释放)plentyof________(harm)gasesintotheatmosphere.Manytrees__________(和)grassaredestroyedforindustrialland(工业用地),______producedachainreaction.existharmfulaswellaslaywhichAllthisleadstothesmog.Thesmogmakesit__________(hard)forpeople___________(breath).Itpreventsusfrom______outand______activities.___________theproblemcanbesolved______________(dependon)___________thelocalgovernmenttakesmeasuresintime.Ireallyhopethattheairinmyhometowncanbefreshagainandthesmogwon’texistanymore.hardtobreathegoingtakingWhetherdependsonwhetherShowtimeHomework1.Oralwork:Reviewthelanguagepoints.2.Writtenwork:FinishtheexerciseofPeriodTwoinyourworkbook.Thankyou