必修三 4.2unit4 grammar2.ppt

新课标人教版课件系列 高中英语 必修3 4 2 unit4astronomy thescienceofthestars grammar thesubjectclause word consolidation ii 2m 2 completethispassagewithsomeoftheabovewords myfriendliyanpingwasreallyveryinterestedin helikedtowatchchangesinthemoon theonlynaturalsatelliteoftheearththroughhistelescope oneeveninghethoughthesawahugecomet asithitthemoon the ofthemoonproducedalotofdustthatbecame likealargeball itseemedasifitwouldmultiplyandbecomeanew liyanpingthoughthewasseeingthe oftheuniverseuntilhenoticedsomedirtonhistelescope hewasverydisappointed astronomy explode surface solid planet development energeticviolentgentlepatientangrycruelterriblecalmrelaxingshockedharmfulkindfriendlyjealous putthesewordsintothemoresuitableofthetwoboxes ex 3p 28 energetic violent angry cruel terrible shocked harmful jealous gentle patient calm relaxing kind friendly ex 41 4dbcb reviewthepassage howlifebeganontheearth andtranslatethefollowingsentences 谁也不知道地球会有别于其他行星 这就是地球之独有特性的初次显现 许多人认为这对生命的起源特别重要 没有人懂得这些植物就是许多变化的开始 nobodyknewthatitwasgoingtobedifferentfromotherplanets thisishowtheearthbegantoshowitspecialqualities manypeoplethinkthatthiswasimportantforthebeginningoflife nobodyunderstoodthattheseplantswerethestartsofmanychanges grammar whatpartdoestheunderlinedpartserveasineachsentence atreehasfallenacrosstheroad youareastudent tofindyourwaycanbeaproblem smokingisbadforyou howdoyoudo isagreeting whatshesaidisnotyetknown thatweshallbelateiscertain itiscertainthatweshallbelate wecanseefromthesesentencesthatasentenceservesassubject sowecallitsubjectclause whatshedidisnotyetknown whoevercomesiswelcome whicheveryouwantisyours whenhewillbebackdependsontheweather wherewelivedoesn tmatter howthepyramidswerebuiltwasstillamystery thatpricewillgoupiscertain thattheyarebadlyinneedofhelpisquiteclear whethertheywillsellthehouseisnotyetdecided 引导主语从句的连接词有 连词that whether 连接代词who whoever what whatever 和which 连接副词when whenever where how和why pleasedoex1onp27 exbooka 注意 有时为了使句子结构平衡 避免 头重脚轻 常用it作形式主语 而把从句放在后面 例如 itisapitythatshehasmadesuchamistake 她犯了这样一个错误 真是遗憾 canyourewritethefollowingsentences 1 thattheearthturnsaroundthesunisknowntoall 2 thatpricewillgoupiscertain 3 thattheyarebadlyinneedofhelpisquiteclear itisknowntoallthattheearthturnsaroundthesun itiscertainthatpricewillgoup itisquiteclearthattheyarebadlyinneedofhelp 这样就构成了下面一些常用句型 1 itis adj n 从句itisapity shamethat 遗憾的是 itispossiblethat 很可能 itisunlikelythat 不可能 2 it 不及物动词 从句itseems appearsthat 似乎 ithappenedthat 碰巧 3 it be 过去分词 从句itissaidthat 据说 itisknowntoallthat 众所周知 itisreportedthat 据报道 itisbelievedthat 据信 人们相信 itissuggestedthat 有人建议 itmustbepointedoutthat 必须指出 ithasbeenprovedthat 已证明 如 itisbelievedthatatleastascoreofbuildingsweredamagedordestroyed 据信 至少有二十座楼房遭到破坏或彻底毁掉 ithasbeendecidedthattheexhibitionwillnotopenonsundays 1 whereshallwespendtheholidayisn tdecided 2 yourhavemadeamistakeisafact 3 thatiscertainthatwecanwin 4 nomatterwholeavestheroomlastoughttoturnoffthelights 5 itisimportantthatastudentlearnsaforeignlanguage weshall thatyouhave itis whoever shouldlearn 改错练习 ex onp29 exbooka 5 用于itisimportant natural necessary impossiblethat 句型中 主语从句应使用虚拟语气 谓语动词用 should 动词原形 的形式 should有时有感情色彩 1 youdon tlikehimisnoneofmybusiness 2 hesaidatthemeetingastonishedeverybodypresent3 the2000olympicgameswillbeheldinbeijingisnotknownyet 4 we llgocampingtomorrowdependsontheweather 5 leavestheroomlastoughttoturnoffthelights that what whether whether whoever 6 isafactthatenglishisbeingacceptedasaninternationallanguage 7 itworriedherabit herhairwasturninggrey 8 theforeignministersaid isourhopethatthetwosideswillworktowardspeace 9 afteryangliweisucceededincirclingtheearth ourastronautsdesiretodoiswalkinspace it that it what pairwork pleaseusethesubjectclausetodescribeyourmotherwithyourpartner suggestedstructures whatmymotherlikesis whatmymotherdoesn tlikeis whymymotherwouldbehappyis whom