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1、Unit2CultureshockGrammar状语从句(adverbialclauses)主要是修饰主句中的动词,形容词和副词,通常由从属连词引导,按其意义和作用可分为时间,地点,条件,原因,让步,目的,结果,方式,比较等。(为中考考点)LastweekGrandmaforgottotakethebookwhensheleftforhome.AlthoughIhaven’tgotagoodjob,surfingmakesmeveryfit.Ifeveryonemakesacontributiontoprotecti
2、ngtheenvironment,theworldwillbecomemuchmorebeautiful.I’llshowthemtoyouassoonastheycomeout.(时间)(让步)（条件）判断是下面句子是什么状语从句？（时间）Ifyougetachancetogo,takeit.Asheexploredthesea,hetookpicturesandvideosofmanythingsthatpeoplehadneverseenbefore.Sincewatercoversmostoftheearth
3、,Cousteauknewweshouldkeeptheseasclean.Aswaterisveryimportanttoourenvironment,heencouragedeveryonetotakepartinprotectingourlakes,rivers,seasandoceans.条件时间原因原因Theboy’sfatherwassothankfulthathetaughtEdisonhowtosendmessagesbytelegraph.Shesaidshefeltasifshewasinasto
4、rmatsea.Themoretreesthereare,thebetterharvestswehave.MiyokoboughtacamerasothatshecouldtakepicturesinBeijing.结果方式比较目的1.时间状语从句:常见连词有when,whenever,while,as,since,assoonas,after,before,bythetime,(not)…until等。☆中考考点1:在时间状语从句里，通常不用将来时态，用现在时态表示将来的动作或状态。e.g.1)Whenspring
5、________(come),theanimalswhichsleepinwinterstartwakingup.(用动词的适当形式填空)(中考上海市2013)—Areyousurethathe____tonight?—Ofcourse.Don’tworry.I’llletyouknowassoonashe__________.A.willcome;comesB.comes;willcomeC.willcome;willcomeD.comes;comes.comesA中考考点2:When从句考点：1)当一个动作正在发
6、生的时候另一个动作突然发生——主句用过去进行时，从句用过去式。（不能用while）e.g.(1)I______________(watch)TVwhenI______(hear)asharpcryyesterdayevening.(2)What_____you_____whentheteachercameinjustnow?A.did,doB.were,doingC.do,doD.are,doingBwaswatchingheard中考考点2:When从句考点：2)当一个动作正在发生时另一动作也相继发生，而且很短暂—
7、—从句用过去进行时，主句用过去式。（也可用while）Acar_______(hit)abicycleridercarelesslywhenit___________(run)pastthecornerofthestreet.hitwasrunningImetMr.Green__Iwaswalkingacrossthebridge,butIdidn’tsayhellotohim.A.beforeB.afterC.untilD.whileD中考考点3:※※※while从句用进行时e.g.1)Myparents_____
8、__________(read)somenewspaperswhileI____________(play)withmye-dogthistimeyesterday.2)Whilewe____________(travel)inAustralialastyear,IvisitedLucywhooncetaughtEnglishinourscho
