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1、现在完成时态讲解及练习一、现在完成时的构成肯定句：主语+have/ has + done过去分词）+其它He has lived in Shen zhe n for 4 years.一般疑问句：Have/ Has +主语+ done过去分词）+其它Has he lived in Shenzhen for 4 years?否定句：主语+have/ has+ not + done过去分词）+其它He has not fini shed his homework.过去分词的构成方法如下：1一般情况下，直接在动词原形后面加_ed.work-worked answer-an swered obey-ob
2、eyed want-wan ted2以不发音的-e结尾的动词只加dMove-moved hope-hoped divide-divided3字尾是辅音+y的动词。则将y改i加ed.study-studied tidy-tidied satisfy-satisfied4以重读闭音节结尾的词，这些词的末尾只有一个辅音字母时，双写这个辅音字母，再加-ed.stop-stopped regret- regretted drop-dropped不规则动词过去式与过去分词分类记忆表1.花费costcostcost2.割cutcutcut3.伤害hurthurthurt4.让letletlet5.放putp
3、utput6.朗读readreadread7.设置setsetset8.打击，碰撞hithithit9.关上门窗shutshutshut10.让letletlet、AAA.（原形，过去式和过去分词一致）7.建筑buildbuiltbuilt8.借出lendlentlent9.花费spe ndspe ntspe nt10.派遣sendsentsent4）过去式、过去分词在原形词尾加t或d11.学会lear nlear nt/edlearnt/ed12.意思mea nmeantmeant13.燃烧burnburnt/edburn ted13.做梦dreamdreamt/eddreamt/ed13.
4、处理dealdealtdealt14.听hearheardheard5）过去式、过去分词改为-ept1.带来bringbroughtbrought2.买buyboughtbought3.打架fightfoughtfought4.想thi nkthoughtthought5.寻找、 探究seeksoughtsought二、ABB （过去式和过去分词一致）1）过去式、过去分词含有-ought15.保持keepkeptkept16.睡觉sleepsleptslept17.扫sweepsweptswept6）过去式、过去分词改为-elt18.感觉feelfeltfel19.嗅smellsmelt/ed
5、smelt/ed20.拼写spellspelt/edspelt/ed5.抓住catchcaughtcaught6.教teachtaughttaught2） 过去式、过去分词含有 -aught3）过去式、过去分词-t替换原形-d20.孵蛋laylaidlaid21.说saysaidsaid7）过去式、过去分词改为-aid22.支付paypaidpaid8）过去式、过去分词改为-old23.卖sellsoldsold24.告诉telltoldtold9）过去式、过去分词改为-ood25站sta ndstoodstood26.明 白un dersta ndun derstoodun derstood
6、10）其它变化27.得到getgotgot(gotte n)28.坐sitsatsat29.照顾babysitbabysatbabysat30.离开leaveleftleft31.失去loselostlost32.找到findfou ndfound33.有have(has)hadhad34.握住，召开holdheldheld35.制造makemademade36.悬挂hanghunghung37.照耀shineshonesho ne39.赢winwonwon40逃跑fleefledfled41喂feedfedfed42.引导，导致leadledled43遇见meetmetmet三、ABA （过
7、去式与原形一致）1.变成becamebecomebecome2.来comecamecome3.跑runranrun四、ABC （原形、过去式、过去分词各不一样）1）.过去分词在过去式或原形后加 -n或-en1.击败beatbeatbeate n2.破坏breakbrokebroke n3.驾驶drivedrovedriven4.吃eatateeate n5.落下fallfellfalle n6.给givegavegive n7.生长growgrewgrow n8.知道knowknewknown9.吹blowblewblow n10.扔throwthrewthrow n11.展示showshow
8、edshow n12.弄错mistakemistookmistake n13.拿taketooktake n14.摇动shakeshookshaken15.说speakspokespoken16.选择choosechosechosen1是be(is, am; are)was; werebee n2开始beginbeganbegun3做:dodidDone4喝drinkdrankdrunk5飞flyflewflow n6忘记forgetforgotforgot/forgotte n7躺lielaylain8骑rideroderidde n9打电话ringrangrung10唱singsangsu
9、ng11穿wearworeworn12游泳swimswa nswum13写writewrotewritte n14去gowentgone2）三种形式都有变化二、现在完成时标志词：recently; recent years; these days/ years; lately; since; for+ 时间段； in the past few years; ever since; in the last five months; up to now; since then; so far; ever; never, yet; once; twice; already; before; just
10、 already已经):用于肯定句I have already posted the letter .yet(已经):用于否定句，疑问句He hasn t done his homework yet.just (刚刚)They have just left.ever（曾 经）Have you ever bee n to Beiji ng ?n ever（从不）I have n ever see n him .before（以 前）Have you see n the film before?si nee（自从以来）I ve worked in the school sin1999.for（长达
11、）He s lived in Shen zhe n for 6 years.in the past several days / weeks/ year在过去的 ）reee ntly（最近）I have not written to my parents reeently.so far倒目前为止）So far she has lear ned 5 En glish son gs.up to now（到目前为止）this morning/month/year（今天早上 /这个月 /今年）已经），yet（ 已经）,引导的时间短语或三、现在完成时的用法1）现在完成时表示过去发生的动作,并对现在有影响
12、。常与already（just（冈【J刚）,ever（曾经）等词连用.Already , yet 的用法already:常用于肯定句中.yet:常用于否定句，疑问句尾.Some one has broke n the wi ndow.窗户现在是坏的）I have already lost the key. （我现在没有钥匙）I haven t read that book .y不了解书的内容）I have just elea ned my han ds.（手是干净的）3）现在完成时表示从过去一直持续到现在的动作或状态，常与for, since从句连用.since , for 的用法：sinee:（自以来）1）si nce+B寸间点He has stayed here since 5 eloek.2）since+ 时间段 + agoHe has stayed here since 5 hours ago.3）since+ 从句for:（长达）for+时间段He has kept the book for 2 weeks.She has lear ned En glish for 5 years.He has lived in Beiji ng since he was born .Ha
