人教新课标版高一英语必修三Unit4Words and expressions课件.ppt

Unit4Astronomy:thescienceofthestarsWordsandexpressions,1.intime及时;迟早，最终Thedoctorcameintimetosaveherlife.医生及时赶来救了她的命.注意:intime“迟早，最终”之意Youllgetusedtoitintime.迟早你会习惯它的.Dontworry.Imsurethingswillgetbetterintime.别着急,我肯定最后事情会好转的.,与time相关的短语:innotimeatnotimeatatimeatonetimeattimesontimefromtimetotime,立刻,马上,有时,每次;一次,按时;准时,不时地,曾有一度；从前,决不（在句首，句子要部分倒装）,2.atmospheren.大气层;气氛Anatmosphereoftensionfiledtheroom.屋子里笼罩着紧张的气氛。Theatmosphereoverdinnerwaswarmandfriendly.用餐时洋溢着热情友好的气氛。注意:指“大气层”使,常用theatmosphere;指“气氛”时,常使用单数形式。,3harmfuladj.有害的；伤害的beharmfultosb./sth.对有害harmn.伤害，危害dosb.harm/doharmtosb./sth.对某人有害domoreharmthangood弊大于利meannoharm没有恶意,_.吸烟有害健康。He_bysayingwhathethinks.他想到就说，并无恶意。,Smokingisharmfultohealth,meansnoharm,4.lay-laid-laid-layingvt.放,把.放在.;产卵Helaidhisbooksonthedesk.他把书放在桌上了。区别:躺;位于vi._说谎vi._Thenaughtyboy_tomethatthehenthat_therejustnowhad_twoeggsthedaybefore.A.laid;laid;laidB.laid;lay;lainC.lied;laid;lainD.lied;lay;laid,D,lie(lay;lain;lying),lie(lied;lied;lying),5existvi.存在；生存existon靠为生Thereexists/existed.某地有/存在comeintoexistence产生；开始存在inexistence存在特别提示：therebe句型中的be动词可以换用exist,live,stand,lie等。exist是不及物动词，没有被动语态，也不用于进行时态。,Suchopennessdoesnotexist_EastAsia.这样的开放作风在东亚并不存在。Sheexists_teaandbread.她靠茶和面包度日。Mancantexist_foodorwater.没有食物和水，人类就不能生存。,in,on,without,6.givebirthto1)生(孩子)Shehasjustgivenbirthtoahealthybabygirl.她刚刚生了个健康的女婴。2)产生Theextraordinaryexperiencegavebirthtohislatestnovel.这段奇特的经历促成了他的最新的一部小说的诞生。,7.preventsth./sb.(from)doingsth.阻止(防止)某人(某物)做某事Therulesareintendedtopreventaccidents.Whatcanwedotopreventthisaccident(from)happening?Nothingcanpreventthisplanfrombeingcarriedout.,preventsb.(from)doingsth.阻止某人做某事stopsb.(from)doingsth.阻止某人做某事keepsb.fromdoingsth.阻止某人做某事特别提示：prevent/stopsb.(from)doingsth.中的from可以省略，而keepsb.fromdoingsth.中的from不能省略。在被动句中，上述三种句型中的from均不能省略。,Itriedtokeephimfromwaitingforher.我试图叫他不要再等她了.Itriedtokeephimwaitingforher.我试图让他等她.,区别：protectsb.from/against.保护某人不受侵袭，伤害keepsb.doingsth.让某人一直做某事,(2010哈尔滨模拟)Thedoctorhadalmostlosthopeatonepointbutthepatientfinally_.ApulledthroughBpulledoverCpulledupDpulledout答案与解析：Apullthrough“康复，痊愈”，符合语境。pullover“把车开到路边，靠岸”；pullup“停车，停止”；pullout“驶出”。,8.cheerup:欢呼,喝彩,感到高兴,使高兴当看到球队的到来,人群欢呼起来。_whentheysawtheteamarrive.他带她去听音乐会来使她高兴。Hetookher_to_.,Thecrowdcheeredup,totheconcert,cheerherup,9.nowthat既然；由于同since相似,语气较弱,指人们已知的事实。在口语中常省略that，而只用now引导从句。既然你忙,就让我给你做吧。Nowthatyouarebusy,letmedoitforyou.既然人都齐了,咱们开始干吧。Nowthateveryoneishere,letsstartwork,10.breakout爆发；突发与happen,takeplace,comeout等词的用法一样,是不及物动词,不能带宾语,不能用于被动语态。1.战争爆发TheAmericanCivilWarbrokeoutin1861.美国内战爆发于1861年。,2.发生争吵他们之间发生了争吵。Aquarrelbrokeoutbetweenthem.3.(火灾)发生昨晚他家里失火了。,Afirebrokeoutinhishouselastnight.,breakdo