九年级英语上册Unit2GreatPeople语法聚焦二导学课件冀教版.ppt

单元语法聚焦二before,after和as引导的时间状语从句&that和who引导的定语从句,Unit2GreatPeople,教材典句,1.Afterhefinishedschool,hewentontostudyphysicsinSwitzerland.毕业后他去瑞士继续研究物理学。2.Hesignedhislastletterbeforehepassedaway.在去世之前，他签署了他的最后一封信。3.AsHelengrewolder,shemadealotofprogressandlearnedtoread.随着年龄的增长，海伦取得了很大进步并学会了阅读。,单元语法聚焦二,4.Anyonewhohasnevermadeamistakehasnevertriedanythingnew.一个从不犯错误的人，一定从来没有尝试过任何新鲜事物。5.Inthedream,hegrewanewtypeofricethatwasasbigasapeanut.在梦里，他种植了一种像花生一样大的新型水稻。,单元语法聚焦二,语法探究,一、before,after和as引导的时间状语从句1before,after和as都可以引导时间状语从句。before意为“_”；after意为“_”；as除了表示“随着”，还可以表示“正当时”和“一边一边”。Thestudentsweretalkingastheteachercamein.当老师进来时学生们正在说话。Wealwayssingaswewalk.我们总是边走边唱。,在之前,单元语法聚焦二,在之后,2.当时间是将来的时候，before,after和as引导的时间状语从句常用_时态，而主句要用_时态。IwillcallherafterIfinishthework.完成工作后，我将会给她打电话。,一般现在,单元语法聚焦二,一般将来,二、that和who引导的定语从句1.定语从句是用来修饰_词或_词的句子，起定语的作用。其中，被修饰的词叫作先行词。定语从句通常出现在先行词_(之前/之后)，由关系代词或关系副词引导，关系代词或关系副词代替_，并在从句中作一定的成分。,单元语法聚焦二,名/代,代/名,之后,先行词,2.who在定语从句中指代_；that在定语从句中既可指代_，又可指代_；who和that在定语从句中既可作_语，又可作_语，作_语时可省略。,单元语法聚焦二,人,主/宾,人/物,物/人,宾,宾/主,实战演练,I.单项选择()1._Helensknowledgeandvocabularyincreased,sheaskedmoreandmorequestions.AUnlessBWhileCAsDBefore,C,单元语法聚焦二,()2.Someonecalledmeupinthemiddleofthenight,buthehungup_Icouldanswerthephone.AafterBsinceCuntilDbefore,单元语法聚焦二,D,()3.2017攀枝花Thebookwassointerestingthathehadreaditforthreehours_herealizedit.AbeforeBafterCuntilDsince,单元语法聚焦二,A,()4.StephenHawkinggotmorethan380，000followersintwohours_heputhisfirstmessageonWeibo.AbeforeBsinceCafterDuntil,单元语法聚焦二,C,()5.2017营口Doyouknowtheboy_isunderthetree?Oh,heismycousin.AwhoBwhoseCwhomDwhich,单元语法聚焦二,A,()6.2017丹东Mycousinisaboy_lotsoftroubletohisparents.AwhobringBwhichbringsCwhobringsDthatbring,单元语法聚焦二,C,()7.2016孝感Itsagoodhabittowashyourhands_youhavemeals.AunlessBwhileCwhenDbefore,单元语法聚焦二,D,()8.2017来宾IliketheTVshows_makemelaughhappily.AwhoBwhatCwhomDthat,单元语法聚焦二,D,.用before,after或as填空1Hewaslucky.Hereachedthestation_thetrainleft.2Doyouhaveaswimmingpool?No,wedont.Atleast,not_big_yours.3Givemeyourpaper_youfinishit.,单元语法聚焦二,before,as,as,after,4ThechildhadstudiedEnglishfortwoyears_hewenttomiddleschool.5_theboyfinishedhishomework,hewenttobed.Hecouldhandeditinontimethenextday.,单元语法聚焦二,before,After,.选词填空Everyonewassurprisedatthephotos_(who/that)Mr.Thomastookinthedeepsea.2.Thewoman_(whom/who)istalkingwithmymotherisourEnglishteacher.3.XiandaoLakeinYangxinisafamousplace_(where/that)wellvisitnextweek.,单元语法聚焦二,that,who,that