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ID:36491171
大小:3.87 MB
页数:19页
时间:2019-05-09
《UNIT 3 Our Hobbies TOPIC 2 What sweet music Section C--When引导时间状语从句》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、UNIT3OurHobbiesTOPIC2Whatsweetmusic!SectionC--when引导时间状语从句一、when可以和延续性动词连用,也可以和短暂性动词连用Whydoyouwantanewjobwhenyou’vegotsuchagoodonealready?(get为短暂性动词)你已经找到如此好的工作,为何还想再找新的?WhenIwasdoingmyhomework,mymothercame.(wasdoing为延续性动词)当我在作业的时候,我妈妈进来了。二、when从句的谓语动词可以在主句谓语动作之前、之后或同时发生1.从句动作在主句动作前发生,只用when。①When
2、hehadfinishedhishomework,hetookashortrest.(finished先发生)当他完成作业后,他休息了一会儿。②WhenIgottotheairport,theguestshadleft.(gotto后发生)当我赶到飞机场时,客人们已经离开了。2.从句动作和主句动作同时发生,且从句动作为延续性动词时,when,while,as都可使用。①When/While/Asweweredancing,astrangercamein.(dance为延续性动词)当我们跳舞时,一位陌生人走了进来。②When/While/Asshewasmakingaphonecall,Iw
3、aswritingaletter.(make为延续性动词)当她在打电话时,我正在写信。3.当主句、从句动作同时进行,从句动作的时间概念淡化,而主要表示主句动作发生的背景或条件时,只能用as。这时,as常表示“随着……”;“一边……,一边……”之意。①Asthetimewenton,theweathergotworse.(as表示“随着……”之意)随着时间的转移,天气变得越来越糟。②Theatmospheregetsthinnerandthinnerastheheightincreases.随着高度的增加,大气越来越稀薄。③Asyearsgoby,Chinaisgettingstronger
4、andricher.随着时间一年一年过去,中国变得越来越富强了。④Thelittlegirlssangastheywent.小姑娘们一边走,一边唱。4.在将来时从句中,常用when,且从句须用一般时代替将来时。①Whenthemanagercomeshereforavisitnextweek,I’lltalkwithhimaboutthis.下周,经理来这参观时,我会和他谈谈此事。三、when用于表示“一……就……”的句型中(指过去的事情)。Sb.hadhardly/scarcelydonesthwhen...=Hardly/Scarcelyhadsb.donesthwhen...我刚一闭
5、上眼,就有人在敲门了。Ihadhardly/scarcelyclosedmyeyeswhensomeoneknockedatthedoor.=Hardly/ScarcelyhadIclosedmyeyeswhensomeoneknockedatthedoor.1.Wewillstayathomeifmyaunt________tovisitustomorrow.A.comesB.comeC.willcomeD.iscoming2.I’llgoswimmingwithyouwhenI________freetomorrow.A.willbeB.shallbeC.amD.wasAC即时练习:4
6、.Whenhegottothestation,thetrain___.A.leftB.hadleftC.leavesD.hasleft5.We___TVwhenthetelephone____.A.watched;wasringingB.werewatching;rangC.watch;ringsD.arewatching;rangDB即时练习:Thankyou!
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