新目标英语八年级下-现在完成时的教案及练习.doc
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1、现在完成时态-练习资料 我们先来翻译几个句子:1 你已经问过这个问题两遍了,别再烦我了。 2我能借你的字典用一下吗?对不起,已经借给tom了。 3 你以前见过她吗?不,从来没有过。 4 你曾经去过北京吗?是的我去过那儿三次。 5 你已经看完那本小说了吗?是的,我已经把它还给图书馆了。基本定义:现在完成时有两种用法1.过去发生的某一动作对现在造成的影响或结果或到现在为止已经发生或完成的动作。2.表示过去发生的、持续到现在的动作或状态。句型转换1. I have been to Macau before. (改为否定句) I _ _ been to Macau before2. Li Ming h
2、as already finished his homework.(改为一般疑问句并做肯定和否定回答) _ Li Ming _ finished his homework yet? 3.They have been here since 2000. (对划线部分提问) have they been here?句型构成:基本结构:主语+have/has+动词的过去分词(p.p)肯定句:主语+have/has+动词的过去分词(p.p)(V-ed)+宾语(或者其他).否定句:主语+have not/has not+动词的过去分词(p.p)(V-ed)+宾语.一般疑问句:Have/Has+主语+动词的
3、过去分词(p.p)(V-ed)+宾语(或者其他)?特殊疑问句:特殊疑问词+一般疑问句(have/has+主语+过去分词+其他将一般过去时的句子改写为现在完成时的句子。1. My father bought many books for me yesterday .Now , I have a lot to read because _2. I saw this film last week.Now, I know this film because I_.3. I did my homework yesterday.Now, I can give it to the teacher becau
4、se I_用法一一 表过去发生的某一动作对现在造成的影响或结果,(强调结果现在还存在)例如I have just cleaned my clothes. 我刚洗过衣服。(“洗衣服”是发生在过去的动作,对现在造成的结果是“衣服干净了”)I have just had my breakfast. (对现在的影响:不饿)Has he had his breakfast? Yes, he has.体会时间状语: I have never heard of that before. Have you ever ridden a horse? She has already finished the wo
5、rk. Have you milked the cow yet? Yes, I have done that already. Ive just finished my homework. He has not e yet. 二.通常与表示包括现在在内的时间副词 just (谓语动词之前) (刚刚), already(已经(肯定句) ), before(之前), yet(一般疑问(句末),已经;否定句:还) never(从不), ever (疑问句) twice(两次),recently(近来)等状语连用,可以和瞬间动词和持续性动词连用,请先圈出时间状语,再用词的适当形式填空1. I _(ha
6、ve) lunch already.2. the train_ (arrive) yet?3.Tom _ never_ (be ) to China.4. The twin _ just _(see) my father.5. The twins _(see) my father just now.6._ you ever _(ride) a horse? Never.7._ you _(clean) the room? Yes, we_(do) that already. When _ you _(do) it? We _(do) it an hour ago.8._ he _(see) t
7、his film yet? No. When _ he _(see) it? He _ it tomorrow. 9. How many times _ you _(e) here? Once. 用法二:表示过去已经开始,持续到现在的动作或状态,也可以表示一直持续到现在并可能还将持续下去。A 动词使用延续性动词。B 和表时间段的时间状语连用。常与for或since引导的时间连用,so far, up to/till now到目前为止, in the last/past+一段时间,all ones life某人的一生中, by now, these days目前,for two years、si
8、nce 1984、since he came here I havent seen her these days.She has learnt English for 3 years/since 3 years ago.They have lived here since 1990.What has happened to the USA in the last 350 years?一、注意:(1)since一段时间agofor时间段; since two weeks ago=for two weeks;I have kept the library book for a week.= I h
9、ave kept the library book since a week ago. (2)since + 时间点for时间段since 2000=for 13 years(3) since+从句(常用一般过去时)The Greens have lived in Beijing since they moved to Beijing from Paris(4)It is /has been +一段时间 + since 从句.自从某事发生已有一段时间了. It is /has been two years since my brother joined the army. 二、用for 或si
10、nce填空。1. Jill has been in Ireland_Monday.2. Jill has been in Ireland _ three days.3. My aunt has lived in Australia_15 days.4. Margaret is in her office. She has been there_7 oclock.5. India has been an independent country_1974.6. The bus is late. Weve been waiting_20 minutes.7. Nobody lives in thos
11、e houses. They have been empty many years.8. Mike has been ill_a long time. He has been in hospital _October9. Its ten years _ we met each other last time. 10. He has taught English _ 25 years. 11. The Greens have lived on the farm _ 1990. 12. They have been practicing the guitar _ two hours. 13.How
12、 long have you been a reporter? _ 8 years ago. 14. I havent gone for a walk in the park _ a long time. 15. Hes been collecting stamps _ he was in primary school. 16. Peter has been to summer camp _ 3 times. 根据上面的学习,我们可以总结下动词的过去分词的变化规律一、规则变化在动词后加ed,规则变化有以下四种:原形+ed 如:worked,passed词尾是e时,直接加d 如:likedliv
13、ed若词尾为“辅音字母加y”,则改y为i加ed。词尾 为“元音字母+y”时,直接加d;如:playedstayedstudiedcried末尾只有一个辅音字母的重读闭音节是,双写最后一个辅音字母加ed. 如:stoppeddropped二、不规则动词的过去式以及过去分词巧记规律AAA: put put put letlet letABA: beebecamebeeABB: standstoodstoodABC: eat ateeaten 用法三:(难点)非延续性动词与现在完成时短暂性动词在肯定句、疑问句中不能与时间段连用。为了表述意思,我们常用相应的延续性动词来代替非延续性动词。他入党五年了。
14、 He joined the Party five years ago .He has been in the Party for five years.He has been a Party member for five years.It is five years since he joined the Party电影开始五分钟了。 The film began five minutes ago.The film has been on for five minutes.It is five minutes since the film began一、三类型:第一类:动词 be + ad
15、j. : Die,finish ,open/close,fall ill/asleep, marry sb/get married to第二类:动词 be + 介词.: start/begin,leave,Join,第三类:动词另一个动词 : Buy,Borrow,get/begin to延续性v,.Bee,put on二、巧记瞬间性动词的转换“开始离去借来还,出生入死买到家,穿衣入睡要感冒,开开关关变结束1 beginbe on6 returnbe back2 leavebe away from7 joinbe in3 gobe off8 diebe dead4 borrowkeep9 bu
16、yhave5 ebe here10 arrivebe here10 reachbe here11put onwearFall asleep Be asleep13catch a coldhave a cold14openbe open15closebe closed三/短暂性动词转换为以下延续性动词或者表示可以延续的状态的短语 arrive at / in sp / get to / reach sp / e / go / move to sp be in sp / at school / at home / on the farm / be here / be there1) I moved
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