现在完成时练习.doc

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1、现在完成时练习语法1、结构：have（has）+动词的过去分词否定句：主语+haven’t（hasn’t）+动词的过去分词一般疑问句：have（has）+主语+动词的过去分词2、动词的过去分词：规则变化（和过去时一样）不规则变化（见书本不规则动词表）3、用法：1）表过去发生的某一动作对现在造成的影响或结果。Eg:Ihavejustcleanedmyclothes.我刚洗过衣服。（“洗衣服”是发生在过去的动作，对现在造成的结果是“衣服干净了”。）Ihavejusthadmybreakfast.（对现在的影响：不饿）通常与already,just,ever,yet,never,b

2、efore等时间副词连用。2）表示过去已经开始，持续到现在的动作或状态，也可能继续下去的动作或状态。*for+一段时间（延续性动词）eg:ShehaslearnedEnglishfor3years.(但非延续性动词的否定形式也可以)eg:Theyhaven’tseeneachotherfor10years.*since+过去时间点（过去时动词）注意不能和一段时间连用Eg:Theyhavelivedheresince3yearsago.(Theyhavelivedheresince2005.)Since+句子（一般过去时）Eg:Wehavebeengoodfriendssinc

3、eshemovedtoNantong.一、、用所给词的适当形式填空。1、It__________(rain)forthreedays.2、Idon’tknowthisoldman.I__________(meet,never)her.3、let’sgotothecinema.No,I_________(see,already)thefilm.4、We__________(finish,not)ourhomeworkyet.5、Mum_____________(come,not)yet.Shewillbebackinaminute.6、I_____________(know)L

4、ilyfortwoyears.7、Haveyou__________(write)threelettersthismoring?8、ZhangHong__________(make)manyfriendssinceshecametoLondon.9、__________they__________(visit)theGreatWall?Notyet.10、Willtheconcertfinishsoon?No,it________just__________(start).二、句型转换1、Theyhavealreadygonetoschool.（改为一般疑问句及否定回答）__

5、________they__________toschool_________?No,they___________.2、Myfatherhasreadtenbooksaboutcomputers.(划线提问)_____________________________________yourfather___________aboutcomputers?3、MissGreenhastaughtEnglishforafewyears.(同上)___________________________MissGreentaughtEnglish?4、Hisfamilyhaveowne

6、dthislandsincefiveyearsago.(同上)______________________ownedthisland___________fiveyears?5、Myunclelefthishometownthreemonthsago.(用for短语替换)Myuncle_______________________________________hishometown__________threemonths.6、TherearemanychangesinNangtong.(改为现在完成时)___________________________________

7、________________inNangtong.7、Tomhastofinishthetaskwithinthreehours.（改为一般疑问句）_______________________________________________________withinthreehours?8、HehasneverbeentoBeijingbefore.(改为反义疑问句)HehasneverbeentoBeijingbefore，_________________________?三、改错1、Iha