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1、Unit1必考句型精讲句型1till/until及not…unitl句式【课文原句】Youwanttoseeaveryinterestingfilmwithyourfriend,butyourfriendcan’tgountilhefinishescleaninghisbicycle.你想和朋友一起去看一部有趣的电影，但是，你的朋友要等他擦完自行车才能去。1.用于肯定句中，表示某一动作或状态持续到till或until结构所表示的时间才结束。此时，主句动词必须是持续性动词。HelivedinCaliforniauntilhewastwe
2、nty.Shestickstotheworkuntilitisfinished.2.用于否定句，表示某一动作持续到till或until机构所表示的时间才开始。其主句动词可以是持续性动词，也可以是非持续性动词。Ididn’tsleepuntilitwasdawn.Youcan'tleaveuntilyourworkisfinished.not….Until…句式的倒装Notuntilsheenteredtheclassroom,didsherealizeshehadforgottenherbook.Not…until…句式的强调句Itw
3、asnotuntilsheenteredtheclassroomthatsherealizedshehadforgottenherbook.句型2beconcernedabout…为…担心；关心；关注【课文原句】Youwilltellyourfriendthatyouareconcernedabouthim/herandyouwillmeetafterclassandtalkthen.Concernoneselfabout/BeconcernedaboutThereisnoneedforyoutoconcernyourselfabou
4、twhereIwaslastnight.Devoteoneselfto/bedevotedtoYoushoulddevoteyourselftostudy./Youshouldbedevotedtostudy.Dressoneselfin/bedressedinYoualldressyourselvesintheschooluniforms.Youallaredressedintheschooluniforms.Seatoneself=beseatedMaryseatedherselfinthearmchair.Hewasseated
5、betweentwooldmen.3/3句型3It/This/Thatis/wasbecause+从句【课文原句】Iwonderifit’sbecauseIhaven’tbeenabletobeoutdoorsforsolongthatI’vegrownsocrazyabouteverythingtodowithnature.我不知道是不是因为我长久无法出门的缘故，我变得对一切大自然有关的事物都无比狂热。Itis之后只能用because来引导表示原因的表语从句，不能用since或as。句型4“stay+形容词”构成系表结构【课文原句】
6、Oneeveningwhenitwassowarm,Istayedawakeonpurposeuntilhalfpasteleveninordertohaveagoodlookatthemoonbymyself.主系表结构类别系动词存在prove,be(am,is,are,was,were,hasbeen,havebeen,hadbeen)变化become,get,turn,go,come,run,fall,grow保持stay,remain,keep,continue,lie,stand感官look,seem,appear,soun
7、d,smell,taste,feel句型5happentodo恰巧；碰巧；偶然【课文原句】Anothertimefivemonthsago,Ihappenedtobeupstairsatduskwhenthewindowwasopen.AsIwasabouttogooutandsearchforhim,hehappenedtocomein.Ihappenedtomeetheronmywayhome.IthappenedthatIhadnomoneywithme.句型6形容词（短语）做状语【课文原句】Yourfriendcometosc
8、hoolveryupset.你的朋友上学时心情不好。一般情况下，常用副词做状语修饰动词，而形容词作状语常用以说明主语或宾语的状况及变化。做状语的形容词（短语）可置于句首、句中或句末，多用逗号与句子的主干隔开。形容词作状语
