現(xiàn)在完成時講解課件

1、The Present Perfect tenseThe Present Perfect tensepresent(now)futurepast Present Perfect Tense 現(xiàn)在完成時精選present(now)futurepast Present主語 + have/ has + 過去分詞（pp）助動詞,無意義 現(xiàn)在完成時的結(jié)構(gòu)Winter has already come，will it still be far in spring ?精選主語 + have/ has + 過去分詞（pp）助動詞,無主語 + have/ has + 過去分詞（pp）否定形式 havent (

2、have not ） +過去分詞 hasnt ( has not ) +過去分詞疑問句 把助動詞 have / has 放在句首 現(xiàn)在完成時的結(jié)構(gòu)注：主語若是第三人稱單數(shù)助動詞用 has精選主語 + have/ has + 過去分詞（pp）否定形式 You have planted all the trees.I have planted all the trees.He/she has planted all the trees.They have planted all the trees. 區(qū)別have 和 has的用法 主語若是第三人稱單數(shù)助動詞用 has精選You have plan

3、ted all the tre1) 表示到現(xiàn)在為止已經(jīng)完成或剛剛完成的動作。Now we have planted all the trees.He has just come back. They have built many buildings in this city. 現(xiàn)在完成時的用法精選現(xiàn)在完成時的用法精選2) 表示過去發(fā)生的動作,強調(diào)結(jié)果或?qū)ΜF(xiàn)在的影響。Someone has broken the window. (窗戶現(xiàn)在是壞的)I have already lost the key. (我現(xiàn)在沒有鑰匙)I havent read that book yet . (不了解書的內(nèi)

4、容)I have just cleaned my hands. (手是干凈的)常與already(已經(jīng)), yet(已經(jīng)), just(剛剛),ever(曾經(jīng))等詞連用. already: 常用于肯定句中. yet: 常用于否定句,疑問句尾. 精選2) 表示過去發(fā)生的動作,強調(diào)結(jié)果或?qū)ΜF(xiàn)在的影響。常與alr3) 表示從過去開始并持續(xù)到現(xiàn)在的動作或狀態(tài)，常與包括現(xiàn)在在內(nèi)的一段時間的狀語連用。She has learned English for 5 years. He has lived in Beijing since 5 years ago.精選3) 表示從過去開始并持續(xù)到現(xiàn)在的動作或狀態(tài)，

5、常與包括現(xiàn)在在since: (自以來)1)since+時間點Hehasstayedheresince5oclock.2)since+ 時間段+ agoHehasstayedheresince5hoursago.3)since+ 從句ShehastaughtEnglishsincehecamehere. for: (長達）for+ 時間段He has kept the book for 2 weeks.since , for 的用法: Take notes 精選since: (自以來)since , for 的用法: 用for 或since填空Mr. Brown has had his TV _

6、 15 years. Ive taken driving lessons _last month. My sister has had her cell phone _a month . My friends havent visited me _few days ago. We havent used our car _ a long time . She hasnt had a good cup of coffee _years. Tom has worn glasses _he was 7 years old. for since forsinceforforsince精選用for 或s

7、ince填空Mr. Brown has had注：并非所有for作為時間狀語的句子都用現(xiàn)在完成時 搞清一般過去時和現(xiàn)在完成時的區(qū)別I worked here for more than twenty years.(我現(xiàn)在已經(jīng)不在這里工作了)I have worked here for more than twenty years.（現(xiàn)在我仍在這里工作）疑難點精選注：并非所有for作為時間狀語的句子都用現(xiàn)在完成時I wo辨析 have been to和 have gone toMy father has gone to Shanghai for a meeting.他（已經(jīng)）去了上海。My fa

8、ther has been to Shanghai for a meeting.他（曾經(jīng)）去了上海。 She has been to China . 她（曾經(jīng)）去過中國。（人已經(jīng)回來了）have been to someplace. 曾經(jīng)去過某地，已經(jīng)回來has gone to someplace.某人去了某地，還沒有回來 She has gone to China last week.上周她去了上海 。（人可能回來了也可能沒回來）精選辨析 have been to和 have gone toM用have/has been to, have/has gone to填空：1.Where is y

9、our brother? He _ the shop. Hell be back soon.2. _ you ever _ to America? Yes, I _ New York twice.3. Here you are at last! Where _ you _? I _ London.4. David _Australia. Im sure hes already arrived.5. Is Benny here? No, he _ the school library. He left five minutes ago.has gone toHave been tohave be

10、en tohave beenhave been tohas gone tohas gone to精選用have/has been to, have/has go9. He _ (go) to school on foot every day. 10._ you _ (find) your science book yet? 11. If it _ (be) fine tomorrow, Ill go with you. 12. The students _ (read) English when the teacher came in. 13. Look! The monkey _ (clim

11、b) the tree. 14. My mother _ (come) to see me next Sunday. 15. Ive lost my pen. _ you _ (see) it anywhere? goeshave, foundiswere readingis climbingis comingHave, seen精選9. He _ (go) to school 1. I_ already _ (see) the film. I _ (see) it last week. 2. _ he _ (finish) his work today? Not yet.3. My fath

12、er _ just _ (come) back from work. He is tired now.4. Wheres Li Ming ? He _ (go) to the teachers office.5. I _ (work) here since I _ (move) here in 1999.6. So far I _(make) quite a few friends here.7. How long _ the Wangs _(stay) here ? For two weeks.8. I _ just _ (finish) my homework. have, seen, sawHas, finishedhas, comehas gonehave worked, movedhave madehave, stayedhave, finished精選1. I_ already _ (see) th1. have, seen, saw 2. Has, finished 3. has, come 4. has gone 5. have wo