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1、现在完成时态Presentperfecttense1.现在完成时态的各种句型.1)肯定式：主语+have/has+V-ed(动词过去分词）+其他.V-ed构成：①一般直接在词尾加-ed.lookedvisited②以不发音e结尾的，直接加-ed.livedhoped③末尾只有一个辅音字母的重读闭音节,双写辅音字母,再加-ed.stopped④辅音字母+y结尾的，将y改I,再加-ed.studiedcarried⑤不规则，hadread注意：动词过去式与过去分词的区别.Languageinuse写出下列动词式和过去分词。动词过去式过去分词动词过去式过去分词dobewritegocomegive
2、takerunknowsingeatleavebuyseespeakswimdrivefindreadmeetdrawlie(躺，位于）showgrow写出下列动词的过去式和过去分词.动词过去式过去分词动词过去式过去分词dodiddonebewas/werebeenwritewrotewrittengowentgonecomecamecomegivegavegiventaketooktakenrunranrunknowknewknownsingsangsungeatateeatenleaveleftleftbuyboughtboughtseesawseenspeakspokespokensw
3、imswamswumdrivedrovedrivenfindfoundfoundreadreadreadmeetmetmetdrawdrewdrawnlie(躺，位于）laylainshowshowedshowngrowgrewgrown2).否定式：主语+havenot/hasnot+V-ed+其他.3).疑问式：Have/Has+主语+V-ed+其他？肯定回答：Yes,主语+have/has.否定回答：No,主语+haven’t/hasn’t.例如：Theyhavewatchedthatmovie.Theyhaven’twatchedthatmovie.Havetheywatchedth
4、atmovie?练习：①Tomhaslefthisschool.否定式:疑问式：②Hehasfinishedhishomework.否定式：疑问式：Tomhasn’tlefthisschool.HasTomlefthisschool?Hehasn’tfinishedhishomeworkHashefinishedhishomework?2.现在完成时态的用法1）表示过去发生的动作对现在造成的影响或结果.它强调的是现在的情况，而不是过去的动作，所以句中不能有过去时间，像yesterday,lastweek,in1998,twodaysago等等.句中常会出现不明确的时间：already(已经）
5、,just(刚刚),yet（已经，还）,recently（最近),lately(最近），never（从来没有）,ever（曾经），before(以前）等。注意:yet常用疑问句或否定句末尾。例如:①我们已经扫了教室.Wehavealreadycleanedtheclassroom.②他刚刚来。Hehasjustcome.③我从来都没有参观过北京.IhavenevervisitedBeijing.④我曾经见过那个学生.Ihaveeverseenthatstudent.⑤我还没有完成我的作业.Ihaven’tfinishedmyhomeworkyet.㈠用动词适当形式填空。1.I___alrea
6、dy_____thefilm.I____itlastweek.(see)2.WhereisLiMing?He________(go)totheteacher’soffice.3.He_____(go)toschoolonfooteveryday.4.____you_____(find)yourbookyet?5.Look.Themonkey_________(climb)thetree.6.____you_____(meet)Tomlastweek?7._____theyever______(visit)toyourschool?8.I___(be)illyesterday.9.Tom___
7、____(read)thisbooktwice.㈡用yet,already,never,ever填空.1.Ihave___seenhimbefore.SoIhavenoideaabouthim.2.Hasthebusleft____?Yes,ithas_____left.3.Haveyou___seenthefilm?No,Ihave_____seenit.4.Ihaven’thadbreakfast____
