现在完成时讲解及练习(附答案)-名师精讲现在完成时先看几个例句：1. I have cleaned my room. 我已打扫了房间。
2. He hasn’t finished his homework. 他还没完成作业。
3. Have you read this novel ? 你看过这本小说吗？: make--- hurry---watch---swim--- be--- talk---want--- study--- stop---take--- see--- like---二、用法：1.表示过去发生的某一动作对现在造成的影响或结果。
I have cleaned my room. 我已打扫了房间(房间现在是干净的，不需要打扫了)They have left. --他们已经离开了,也就是说现在他们人不在这里I have had my lunch.--我已经吃过午饭了,也就是说我现在不饿2.表示过去已经开始, 持续到现在的动作或状态,I have learnt English for more than ten years.我已经学了10多年的英语。
She has swum since half an hour ago.我已经游泳了半个小时3表示人曾有过或到目前为止从未有过的经历.I have never had a car (我从未有过汽车。
)I have been there twice.动词填空：1._____ you ________(clean) the room?Yes, we __________(do) that already.When _______ you ______(do) it?We _______(do) it an hour ago.2.______ he ______(see) this film yet? Yes.When _____ he _____(see) it?He ______ it last week.3. How many times _____you______(be) there?三、标志词◆常与①already, ②never, ③ever,④just,⑤yet, ⑥before, ⑦up to now,⑧so far,⑨for the last few weeks ⑾since ⑿for along time/for标志词的区别1.for +一段时间Eg. I have been here for 5 weeks.He’s studied English for 3 years.2. since +(表示过去某一时间的)时间点/单词/词组/ 从句(一般过去时)Eg. I have been here since 2000.I have been here since 5 years ago.I have been here since I graduated in 2000.注2): 对for或since引导的时间状语提问必须用how long, 决不能用when.How long have you lived here?Eg. I have lived here for 10 years.注3): 短暂性动词不能和for或since引导的时间状语连用, 当然也不能用于how long引导的问句中Eg.(误)I have left there for 5 years.(正)I have been away there for 5 years.选用for和since填空:1.We haven’t seen each other ______ a long time.2.His father has been in the Party ______ 10 years ago.3.The film has been on ______ 20 minutes.4.Mr Green has worked here ______ he came to China.5.His grandparents have been dead ______ several years.6. It’s five years _______ we met last time.a）already 往往用于肯定句，用在疑问句时表示强调或加强语气；yet 用于否定句和疑问句。
•He has already left here.他已经离开这里了。
•Has he already left here?他（真的）已经离开这里了吗？（表示加强语气）•My teachers haven’t had breakfast yet.我的老师们还没有吃早饭。
•Have you written to your parents yet?你已经给你父母写过信了吗？b）never 是否定词，表示“从来没有”，而ever 表示“曾经”•We have never been to the Great Wall.我们从来没有去过长城。
•Have you ever been to Canada?你们曾经去过加拿大吗？c. just用于句中, 表示“刚刚”Eg. I’ve just had breakfast.What have they just done?d. before在现在完成时中的用法用于句末, 表示“以前”Eg. I’ve seen it before.四、短暂性动词在肯定句、疑问句中不能与时间段连用，这些动词是：①become, ②begin, ③buy, ④在没有关系。
eg：He has bought an English-Chinese dictionary. 他已经买了一本英汉字典。
He bought an English-Chinese dictionary. 他曾买过一本英汉字典。
H第一句用现在完成时时态，想表达意为：“He bought an English-Chinese dictionary. And he still has it”“过去他买了一本英汉字典，现在他还有这本字典”。
H第二句用过去时只叙述过去他买过一本英汉字典这一事实，至于现在他是否有这本字典并未强调说明。
2．常与一般过去时连用的典型的表示过去时间的状语: yesterday(昨天), the day before yesterday(前天), just now(刚才)，时间+ ago, last +时间等;eg: The plane took off ten minutes ago.We finished our task last week .六、完成时辨析)have/has gone to，have/has been to和have/has been in 的区别have/has gone to: 表示某人已经去了某地现在还没回来, 可能现在正在某地或者正在去那里或回来的路上.have/has been to: 表示某人曾经去过某地, 但现在己经不在某地.Have/has been in:某人在某地1.Mike and his parents __________ the north for halfa year.2.Mum is not at home now. she _________ the shop.3.______ you ever _____ to kunming ? Never.4.Where _____ you ______ these days?5.Has Jim arrived yet?Yes, he _______ here for several days.6.Where is Peter? I don’t know where he ________.7.Hi Jim! Where _____ you _____ ?Li Lei is looking for you.完成时练习4. I __________ (read) the novel twice. It’s interesting.5. She _________(go) to Pairs, hasn’t she? Yes.How ______ she _______(go) there?She _______(go) there by air.6. So far, many countries _______________(develop)their software programs.7.Mr Chen ______(give)up smoking last year.8.Mr Chen __________(give) up smoking since last year.、翻译下列句子：1. 你曾经吃过鱼和薯条吗？2. 我刚刚丢了我的语文书。
3. 我以前从来没去过那个公园。
4. 他已经吃过午饭了。
5. 你已经看过这部电影了吗？6. 我哥哥还没回来。
7. 我自从上星期看过这部电影。
8. 自从1992年他住在这里。
9.这本字典我已买了三年了。
10.他离开中国三年了1.Have you eatten fish and french frise?2.I have lost my Chinese book.3 I have never been to that park. 4.He has already had lunch.5 Have you seen this movie yet?6 My brother has not returned.7 I have seen this movie since last week. 8 He has lived here since 1992.9 I have had this dictionary for three years. 10 He has been away China for three years.一、用所给词的正确形式填空1. Wei Fang isn't here. She______（go）to the reading room.2. Zhang Hong ______（make）many friends since she came to Paris.3. She _______（work）in this factory for ten years.4. They ______（not hear）from each other since 1995.5. —___________ you ___________（finish）your homework yet?—No, not yet.6. — Where is Jim?—He ______（go）to Canada.7. How long ______you______（be）at this school?8. I_______（have）breakfast already.9. She ______（study）English for three years.10. I _______ never_______ （see）such a wonderful match before。