九大时态详解-过去进行时.docx

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1、五．过去进行时定义：表示过去某个时间点正在发生的事情句型结构：主语+谓语动词+（宾语）谓语动词：was/were+doing(动词ing形式)*注意：进行时态的中出现的动词必须是持续性动词，而非短暂性动词。动词ing形式的变化规则：1.在词尾+ing，如play→playing；2.当动词以重读闭音节结尾且结尾只有一个辅音的时候，双写末尾的辅音+ing，如run→running；3.当动词以辅音+e结尾时，去e+ing，如make→making4.不规则变化：①lie→lying②die→dying例1：Wewerehavingbreakfastat8:00this

2、morning.例2:Iwascleaningmybedroomat7:00lastevening.例3:Marywaswaitingfortheschoolbusthen.例4:YouwerelisteningtomusicwhenIsawyou.句型转换：变为否定句：Wewerehavingbreakfastat8:00thismorning.(在be动词之后加not)weren’t变为一般疑问句：Wereyouhavingbreakfastat8:00thismorning?(把be动词提到句子最前面，其它不变)回答：Yes,wewere.No,weweren

3、’t.特殊疑问句的变化规则：三步走，一换二代三提前例1：Wewerehavingbreakfastat8:00thismorning.(对划线部分提问)一换：换成一般疑问句Wereyouhavingbreakfastat8:00thismorning?二代：把划线部分用特殊疑问词代入Wereyouhavingbreakfastat8:00thismorning?doingwhat三提前：把特殊疑问词提前Whatwereyoudoingat8:00thismorning?拓展提高：⑴由when引导的时间状语从句，从句用一般过去时，主句用过去进行时Youwerelist

4、eningtomusicwhenIsawyou.主句：过去进行时引导词从句：一般过去时注意：当when引导的从句与主句交换位置时，句子意思不变，如YouwerelisteningtomusicwhenIsawyou.=WhenIsawyou,youwerelisteningtomusic.Shewasreadingabookwhenhermothercamebackhome.=Whenhermothercamebackhome,shewasreadingabook.⑵由while引导的时间状语从句，主句和从句都用过去进行时Iwasdoingmyhomeworkwhi

5、lemydadwaswatchingTVlast.主句：过去进行时引导词从句：过去进行时=WhilemydadwaswatchingTV,Iwasdoingmyhomework.Lindawascleaningherbedroomwhileherbrotherwasplayingoutside.=Whileherbrotherwasplayingoutside,Lindawascleaningherbedroom.注意：从句要紧跟着引导词。练习一：请写出例2、3、4的否定句，一般疑问句及其问答。练习二：请把下列句子改成特殊疑问句(写出变化步骤)1.Thestuden

6、tswerewatchingTVathomelastnight.①②③①②③练习三：用适当的引导词，把下列句子连成一句话1.A.Martinwaswateringtheflowers.B.Lindacamein.2.A.CindyandLucywerestudyingEnglish.B.Thetelephonerang.3.Iwascookingthemeal.B.Myyoungerbrotherwasplayingfootball.