英语人教版八年级下册现在完成时态的用法.doc

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1、一现在完成时1.过去某一时间点发生的动作对现在产生影响。2.过去某一时间点发生的动作持续到现在或还将持续下去。二基本结构have/has+done助动词（可以帮助构成肯定、疑问和否定句）1.Hehascleanedhisroom.(写一个一般疑问句）2.ShehaslivedinLondonforfouryears.(划线部分提问）3.HehasbeentoChina,________?（写出反义疑问句部分）4.Theyhavecomebackfromwork.(写否定句）三Keywords1.注意：already用于肯定句，yet用于疑问句和否定句中A:__

2、____yourbrother______hishomeworkyet?(finish)B:Yes,he‘salreadydoneit.2.注意：ever曾经用于疑问句中never从不带有否定意义A:_______youever_______tothepark?(be)B:No,never.3．Just刚刚与现在完成时连用一般置句中Justnow刚才与一般过去时连用I______just________thedesk,youcantakeittoyourclassroom.(mend)4.since后面带过去时间或有一般过去时的句子Tom___________

3、inthefactorysinceheleftschooltenyearsago.(work)5.for+一段时间A:Howlong______you________inthisschool?(teach)B:For6years.6.sofarWe_______only____________100treessofar.(answer)7.inthepast10yearshowlongtwice也可以是其他表示次数的词•Hehasboughtthebook.•Hehasboughtthebookforaweek.•Hehashadthebookforaweek

4、.Shehasboughtthecomputerfortwoyears.HowlonghaveyoucometotheUnitedStatesAnnhasgonetoChinasincethreemonthsago.例句1.Mybrotherhasjoinedthearmyforfiveyears.2.IhaveleftShanghaifor3days.3.Ihaveborrowedthedictionarysince3daysago.4.Thefilmhasbegunfor10minutes5.Theconcerthasfinishedforhalfanho

5、ur6.Hisdoghasdiedfortwoyears.四短暂性动词转换成延续性动词Buy---have/hashadleave-----have/hasbeenawaycometo---have/hasbeeninborrow-----have/haskeptgoto-----have/hasbeeninbegin----have/hasbeenongotto-----have/hasbeeninfinish----have/hasbeenoverjoin----have/hasbeenindie---have/hasbeendeadhave/hasbee

6、nasoldier五havegoneto去了某还没回来不与只用于第三人称havebeento去过某地已经回来常与ever,never,once,twice,连用havebeenin一直留在某地与for/since连用用howlong提问1,。Hersister_____________Australia,Sheleftthismorning.2.A:WhereisBob?B:He____________Japanwithhissister.3.A:Howlong____you_______China?B:I_________herefor3years.4.A:

7、_____youever________thecity?B:No,never.六.用所给动词的适当形式填空　　1.I____already____(see)thefilm.I________(see)itlastweek.　　2._____he____(finish)hisworktoday?Notyet.　　3.___you____(be)toHongKong?Yes,I_____(be)theretwice.　　4.He_______just______(finish)hishomework.　　5._______theyoungwomanever____

8、___(travel)toEnglan