小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com1.现在完成时的构成现在完成时的形式是“have（has）+过去分词”，表示继续、完了、结果和经验等四种意思。现在完成时的否定句是在have（has）的后面加上not，疑问句是将have（has）置于主语之前。1现在完成时的肯定句句型：主语（第一、二人称单、复数，第三人称复数）+have+过去分词～主语（第三人称单数）+has例如：WehavelivedinBeijing.我们一直住在北京。HehaslivedinBeijing.他一直住在北京。过去分词有下列三种用法：1.构成现在（过去）完成时have（has）+过去分词～Ihavewrittentheletter.我写完这封信了。2.被动语态：be+过去分词～Hewaslookedafter.他受到照顾。3.用于形容词Thisisabrokenchair.这是一张坏的椅子。2现在完成时的否定句句型：主语+have（has）+not+过去分词～.小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.comIhavenotseenthemovieyet.我还没看这部电影。Hehasn'tbeentoBeijingsincethen.从那时起，他就再也没来过北京。注意haven't=havenot读作[hvnt]hasn't=hasnot读作[ˈhæznt]We've=Wehave读作[wiːv]3现在完成时的疑问句句型：一般疑问句：Have（Has）+主语+过去分词～？Haveyoufinishedthework？你已经做完这项工作了吗？Yes，Ihave.是的，我已经做完了。No，Ihaven't.不，我还没有做完。Hasshearrivedhere？她已经到这儿了吗？Yes，shehas是的，他已经到了。No，shehasn't不，她还没有到这儿。特殊疑问句句型特殊疑问词+have（has）+主语+过去分词～？HowmanytimeshaveyoubeentotheGreatWall？你去过长城几次？现在完成时的构成练习题一、用括号中动词的适当形式填空小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com1．He________(wait)foranhour.2．I________(notfinish)theworkyet.3．________you________(know)himsincethen?4．I________(hear)frommyfatherrecently.5．We________(be)theremanytimesinthepast3years.6．Thesun________(rise)whenwegotthere.7．They________(finish)theworkbytheendoflastmonth.8．Howlongyou________(stay)athomealready9．I________(notread)thebookbefore.10．He________just________(do)it.11．Mysister________(walk)toschooleverydaylastyear.12．We________(have)anexam.againsometimenextweek.13．By1993,we________(plant)20,000trees.14．Hersister________(go)toShanghai.She________(leave)thismorning.15．MyfriendWangHaioften________(swim)intheriver.16．Thewriter________(finish)severalstory-bookssince1980.17．Iaskedmymother________she________(come)backsoon.18．What________you________(do)whenIcalledyou?小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com19．Don'tcry!Ourteacher________(go)overhislessons.20．Hejust________(have)hisbreakfast.21．Ibelievethatourvolleyballteam________(be)backinaweek.22．Thefamousscientist________(reach)Beijingtwodaysago.23．We'llgotovisitthemuseumifit________(notrain)tomorrow.24．IsawmyfriendwhenI________(walk)inthestreet.25．Look,theboys________(play)ontheplayground.26．He________(live)inhishometownsincehelefthere.27．He________(go)toseehisgrandfatherlastSunday.28．Whenwegottotheclassroom,theclass________(begin).小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com【答案】1．haswaited2．haven'tfinished3．Have,known4．haveheard5．havebeen6．hadrisen7．hadfinished8．have,stayed9．haven'tread10．has,done11．walked12．willhave13．hadplanted14．hasgone,left15．swims16．hasfinished17．if,wouldcome18．were,doing19．isgoing20．has,had21．willbe22．reached23．doesn'train24．waswalking/walked25．areplaying26．haslived27．went28．hadbegun