过去完成时态1）过去完成时态的构成：肯定式：had+动词的过去分词否定式：hadn’t+动词的过去分词疑问式：Had…+动词的过去分词简略回答:Yes,主+had.No,主+hadn’t.缩写形式：I’d,he’d,we’d,they’d.过去完成时的用法：1、表示在过去某一时间或动作之前已经发生或完成的动作。他表示的时间是过去的过去,常与bylastyear,bythetimeofyesterday,等连用。如：Shesaidshehadseenthefilm4times.WhenMrLigottotheclassroom,allthestudentshadbegunreading.Bythetimetheyarrived,thebushadleft.2、表示从过去某一时间开始一直延续到过去另一时间的动作或状态。常与for(后跟段时间)或since(后跟点时间)等连用,如:Shehadworkedinthisschoolsinceitopened25yearsago.例题解析：举一反三，学的更轻松！1.He______inShanghaiUniversityforfouryearsbeforehe______Beijing.A.studied,hadgoneB.hadstudied,wentC.hasstudied,goesD.hadstudied,hadgone解析：他去北京之前在上大学学习了4年。在上海学习的动作发生在去北京之前，因此第一个空应用过去完成时。此题选B。2.Marysaiditwasatleastfiveyearssincehe______agooddrink.A.enjoyedB.wasenjoyingC.hadenjoyedD.wouldenjoy解析：Itwas+时间段+since引导的从句中用过去完成时。应选C。3.XiaoPeisaidshe______Hainanfor3months.A.hasbeeninB.hadbeeninC.hadbeentoD.hadgoneto解析：小培说她去了海南三个月。Havebeento和havegoneto都是短暂性的动词短语。所以适应表示状态的havebeenin.应选B.过去完成时常用句型：一、主语+过去完成时+when引导的从句(从句谓语动词为过去式)。例如:Tomwassurprisedthatmostoftheguests_____whenhe______attheparty.A.left;hadarrivedB.left;arrivedC.hadleft;hadarrivedD.hadleft;arrived正确答案为D。guests先"离开",Tom后"到达"。二、主语+过去完成时+by短语。例如:We_____fourthousandnewwordsbytheendoflastyear.A.hadlearnedB.havelearnedC.learnedD.willhavelearned根据by短语中的lastyear得知,正确选项为A。三、主语+过去完成时+bythetime引导的从句(从句谓语动词为过去式)。例如:Hehadalreadybuilthisownlabbythetimehewasten.到十岁时,他已经建起了自己的实验室。四、主语+过去完成时+before引导的从句(从句谓语动词为过去式)。例如:HehadstudiedEnglishforfiveyearsbeforehecamehere.来这儿之前,他已经学过五年梦塔英语了。课外练习：时态综合练习用我们所学的时态完成下列句子。1.Betty__(be)notin.She____(go)tothelibrary.She___(leave)twohoursagoandshe_____(be)backinhalfanhour.iswentleftwillbe2.Flora__(be)agoodteacher.She______(teach)usgeography.Thirtyyearsagoshe_____(come)toourschooland______(begin)toteach.She________(be)ateachersincethen.isteachescamebeganhasbeen9.Thesun_____(rise)intheeast.10.Themoon____(rise).Nowit_________(hang)highupinthesky.11.Linda___(get)twopostcardsfromherunclejustnow.12.Itwasalreadyeleveno’clock.Kate_______________(still,work)onthemathsproblems.risesrisesishanginggotwasstillworking13.We___________(have)supper.Suddenlythelight____(go)out.14.Mary__________(not,go)overherlessonscarefullyandshe_____(fail)theexamagain.15.-___thetrain_______(arrive)?-No.It________(come)infourminutes.werehavingwenthadn’tgonefailedHasarrivedwillcome
