小学英语-现在完成时.doc
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1、精品文档,仅供学习与交流,如有侵权请联系网站删除现在完成时一、现在完成时的用法1. 过去发生或已完成的某动作对现在造成的影响或结果。1)I have finished my homework. 我做完家庭作业了。(过去某时开始做,到现在已完成)2)He has already come 他已经来了。(过去某时开始离开某地到这来,现在已在这。)2. 表示动作发生在过去并延续到现在,有可能继续延续下去。如:1)I have studied English for six years. 我已经学了六年英语了。 (六年前开始学英语,一直学到现在, 也可能继续学也可能就此不学了。)2)I have li
2、ved in Shenyang since 1990. 我从1990年就在沈阳住。(从1990年开始住在沈阳一直住到现在,也可能继续住也可能就此为止。)二、现在完成时的结构 1)肯定式:主语 + have / has + 过去分词 2)否定式: 主语 + have / has + not + 过去分词 3)一般疑问式 Have / Has + 主语 + 过去分词 4)特殊疑问式 特殊疑问词+have/has+主语+过去分词三、现在完成时的时间状语现在完成时常用的时间状语包括 “already, yet,ever, etc”。例如:We have learned about 3000Englis
3、h words by the end of this term.到上学期末我们已经学了3000个英语单词。注意:1) 当表示一段时间,现在完成时可以用for 或since引导的状语。例如:Ive known Li Li for 4 years. 我认识丽丽已经4年了。I have worked here since 8 years ago. 自从8年前我就在这工作。2) 当在肯定陈述句中含有already或just 时,在转换成否定句时,要把句中的already 或just 去掉,在句末加上yet.。例如:I have already seen the film. - I havent see
4、n the film yet.He has just come. -He hasnt come yet.四、使用时注意事项1.“have/ has got ” 形式上是一种完成时,但和have/ has 为同一意思“有”。 例如:Have you got pen-friends? Yes, I have. 你有笔友吗?是的,我有。 Has he got a lot of work to do? No, he hasnt. 他有许多工作要做吗?不,他没有。2. have/has gone to 、have/has been to 和have/has been in的区别。have/ has go
5、ne to 去了,在去某地的路上或在某地,人还未回来have/ has been to 曾经去过,人已经回来了have/ has been in 已经在,常与一段时间连用He has been to Shenyang before. 他以前曾去过沈阳。He has been in Shenyang for ten years. 他在沈阳10年了。Has he gone to Shenyang? 他去沈阳了吗?3. have/ has been to常和once, twice, never, ever连用;have/ has gone to则不可。例如: Has Tom ever been to
6、 Paris? 汤姆去过巴黎吗? Yes, hes been there many times. 是的,他去过好几次了。 Where have they gone? 他们去哪里了? Theyve gone to Shenyang. 他们去沈阳了。4非延续性动词(或称作终止性动词)不能用“现在完成时 + 表示一段时间的状语”的句型中。 这类动词有:come, go, start, leave, die, buy, finish, join, borrow, stop等。但它们能够用表示持续状态的相应的延续性动词替换句中的终止性动词。arrive, come be here, be in buy
7、havebegin, start be on die be dead get up be up leave, move be away; go out be out borrowkeepfinish/end be over open be open现在完成时练习:一、选择填空1. Kates never seen Chinese films,_ ?A. hasnt she B. has she C. isnt she D. is she2. -Mum, may I go out and play basketball?-_you_ your homework yet?A. Do;finish
8、B. Are;finishing C. Did;finish D. Have;finished3. His brother has been to Stone Forest twice_he came to Yunnan.A. after B. before C. since D. for4. Tom_the CD player for two weeks.A. has lent B. has borrowed C. has bought D. has had5. I_a letter from him since he left.A. didnt receive B. havent got
9、C. didnt have D. havent heard6. -Have you ever_Beijing ? -Yes, I have.A. went to B. gone to C. been in D. been to7. My parents _ Shandong for ten years.A. have been in B. have been to C. have gone to D. have been8. I wont go to the concert because I _my ticket.A. lost B. dont lose C. have lost D. is
10、 coming9. Where is Mr Liu? - He_ the library. A. has been to B. has gone to C. has been in D.has went10. We came to Shanghai three years ago, so we_here for two years. A. have been to B. have been in C. have been D. have gone11.- How long_you _your exam paper? - About three months. A. did;buy B. hav
11、e;get C. have;had D. have;bought12. He tells me he _China for over eight years. A. has been B. has been in C. has been to D. has gone to13. His parents_ for more than 3 years. A. have come here B. have started to workC. have lived there D. have left the university14I_ a letter from him since he left
12、Adidnt receive Bhavent got Cdidnt have Dhavent heard15Where have you _ these days?I have _to Dalian with my friendsAbeen;gone Bbeen;been Cgone;been Dgone;gone16How long have you _ this book?Abought Bborrowed Chad Dlent17Wheres Peter? He _ to NanjingAis going Bhas been Chas gone Dwent18We have lived
13、here _ five years agoAwhen Bsince Cbefore Dafter19I have watched the game When _you _ it?Ahave;watched Bdo;watch Cdid;watch Dwill;watch20. Miss Brown _ to the Great Wall twiceAhave been Bhas been Chave gone Dhas gone二用动词的适当形式填空1. I_ already _(see) the film. I_(see) it last week.2. _he_(finish) his w
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