Completethesentences1.They_____________(finish)theirhomeworkalready.2.John____never______(visit)China.3.MrLi____________(repair)overtenbicyclessinceMonday.4.We____________(notsee)eachotherforyears.5.Ourteacher__________(teach)usalotaboutthehistoryofChina.havefinishedhasvisitedhasrepairedhaven’tseenhastaughtFillintheblanks.1.OneSundaymorning,MillieandAmy_____toSunshinePark.2.It____usabouttwohourstogettherebybus.3.Heonce_____toputinabrighterlightinhisbedroom,buthe_____amistake.4.Whenshe____20monthsold,she______tolookafterherself.5.____youhearaboutthefireataschoolintheUKlastweek?wenttooktriedmadewaslearntDid一般过去时构成用法常用时间状语动词的过去式1.表示过去某个时间发生的动作或存在的状态。2.表示过去经常或反复发生的动作。yesterdaylastnightin1990twodaysago…IhavelearnedtoswimsinceIwasborn.Ilearnedtoswimatsixmonths.Hehasalreadyfinishedhishomework.Hefinishedhishomeworjustnow.Wehaven’tseeneachotherforthreemonths.Wesaweachotheramomentago.一、构成不同Theylivedherein2011.他们2011年住在这里。Wehavelivedhereforthreeyears.我们已经在这里住了3年了。一般过去时：主语+谓语动词的过去式现在完成时：have／has+动词的过去分词Weoftenusethesetimeexpressionswiththesimplepasttense:yesterdaytheotherdaylast......ago二、时间状语不同Weoftenusethesetimeexpressionswiththepresentperfecttense:alreadyuptonoweveruntil/tillnowjustsofarrecently(not)yetDaniel两年前去了北京。DanielwenttoBeijingtwoyearsago.Daniel已经在北京居住两年了。DanielhaslivedinBeijingfortwoyears.Weusesimplepasttensetotellwhathappenedinthepast.Weusethepresentperfecttensetotalkaboutanactionthatstartedinthepastandcontinuestothepresent.三、用法不同1.三年前他养了只猫做宠物。He______acataspetthreeyearsago.2.这只宠物猫他养了三年了。He_________thepetcatforthreeyears.kepthaskeptDaniel上个月买了台新电脑。Danielboughtanewcomputerlastmonth.Daniel已经买了台新电脑。Danielhasboughtanewcomputer.(Danielhasanewcomputernow.)Weusethesimplepasttensetotellwhathappenedinthepast.Weusethepresentperfecttensetotalkabouttheresultofanaction.Whentheactionhappe...
