中考专项复习——现在完成时复习课件

nullnull现在完成时复习Review of the Present Perfect Tensenull现在完成时的构成： have/has + 动词的过去分词注：动词过去分词的构成分为规则变化和不规则变化， 规则变化的动词过去分词与过去式是一样的，不 规则变化的动词须特殊记忆。null规则动词过去分词的构成1. 一般在动词后直接加-ed构成规则2. 以不发音的e结尾的动词， 直接加-d3.末尾只有一个辅音字母的 重读闭音节词，先双写这 个辅音字母，再加-ed 4.结尾是“辅音字母+y”的动词， 先变“y”为“i”再加-ed 例词look lookedplay playedlive livedhope hopedstop stoppedplan plannedstudy studiedcarry carriednull写出下列动词的过去分词：work like cry stay learn use help finish cook arriveworkedlikedcriedstayedlearnedusedhelpedfinishedcookedarrivednull不规则动词过去分词的构成1. 三个主要动词 is, am be arewas werebeenhave/hashadhaddo/doesdiddonenull2. AAA型 （三者一致）cut cut cutlet let letput put putcost cost cost read read readnull3. ABA型 （过去分词与原形一致）come came comebecome became becomerun ran runnull4. ABB型 （过去分词与过去式一致）bring brought broughtfind found foundhear heard heardkeep kept keptmake made made此外还有leave, win, tell, spend, say，meet等等。null5. ABC型 （三者不一致）eat ate eatengive gave givenwrite wrote writtensee saw seenget got gottenbegin began begun此外还有go, take, know, speak, swim等等。null现在完成时的用法：1. 表 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf 示已完成的某一动作对现在造成的影响或结果1） 标志词:already: yet:多用于陈述句，位于have/has后，有时位于句末。e.g. I have already finished my homework.用于疑问句和否定句，位于句尾。e.g. Have you found your lost book yet ? I haven't had breakfast yet.ever : never:多用于疑问句，问初次经历。e.g. Have you ever been to Beijing?用于否定句，位于have/has后e.g. He has never argued with other people.nulljust : before:多用于陈述句，位于have/has后e.g. Lucy has just washed her clothes. 可用于各句式，位于句尾。e.g. I have read this book before. He hasn't been abroad before. Have you flown to Hainan before?2）无标志词的：e.g. He is not feeling well now. He has caught a cold. I have lost the key. I can't go into my room. null 2. 表示从过去已经开始，持续到现在的动作 或状态。标志词:1）for +一段时间 e.g. We have lived in this city for ten years. 2） since +过去点时间 since +一段时间+ago since +从句（从句用一般过去式） e.g. He has worked here since 1990. She has taught in this school since two years ago. We have known each other since we met. null 3） so far, once/twice/ three times ,all one's lifee.g. They have learnt 2000 words so far. Tom has seen the film twice. Her father has worked in the factory all his life. 4） in the past +一段时间 during the last +一段时间 e.g. They have built many high buildings in the past three years. Great changes have taken place in my hometown during the last two yearsnull3. have / has been to have / has gone to have / has been in曾经去过某地到某地去了在某地呆了多长时间1. A: Where’s Jim, Li Lei? B: He ______________his school library. 2. The Greens _____________China for three years. 3. We _____________the Great Wall twice. It’s very beautiful.has gone tohave been inhave been tonull翻译下列句子她曾经去过上海。 She has been to Shanghai before. 他在上海10年了。 He has been in Shanghai for ten years 他去上海了。He has gone to Shanghai.null　１.肯定句：主语＋ have/has+过去分词＋其他成分。 现在完成时态的句式：２.否定句：主语＋have/has+not+过去分词＋其他成分。 3.一般疑问句：Have/Has+主语＋过去分词＋其他成分？ 4.特殊疑问句：特殊疑问词＋have/has＋其他成分？肯定句：I have cleaned my bedroom.否定句：I haven’t cleaned my bedroom.一般疑问句：Have you cleaned your bedroom?null现在完成时和一般过去时的区别：现在完成时，强调这一动作产生的结果对现在的影响，与现在有关。 一般过去时，仅仅表示在过去某一时刻曾发生过这一动作，与现在无关。 He has studied English for five years. He studied English for five years. （学习英语已经五年了，现在仍然在学） （只说明他过去学过五年英语，但现在不学了。） nullHe _________(work) in our school for one year. 2. He ______(come) to our school last year/in 2002. 3. They __________(cook) the supper already. 4. They _______ (cook) the supper half an hour ago.has workedcamehave cookedcookednull1. Have you met Mr Li ______？ Ａ. just Ｂ. ago Ｃ.before Ｄ. a moment ago 2. The famous writer ____ one new book in the past two year . Ａ. is writing Ｂ.was writing Ｃ.wrote Ｄ.has written3.—Our country ______ a lot so far . —Yes . I hope it will be even ______ . 　Ａ. has changed ; well 　 Ｂ. changed ; good 　 Ｃ. has changed ; better 　Ｄ. changed ; better 4.Harry Potter is a very nice film .I_______ it twice . Ａ. will see 　 Ｂ. have seen Ｃ. saw Ｄ.seeＣＤＣＢnull5. —These farmers have been to the United States . —Really ? When ___ there ? Ａ. will they go 　　　 Ｂ. did they go 　 Ｃ. do they go 　　　　Ｄ. have they gone 6.— ______ you ___ your homework yet ? —Yes . I _____ it a moment ago . Ａ. Did ; do ; finished 　 　 B. Have ; done ; finished Ｃ. Have ; done ; have finished 　 Ｄ. will ; do ; finishBB