1、Unit 1 Grammar,現(xiàn)在完成時態(tài),The Present Perfect Tense,We use the simple past tense to talk about what happened at a definite time in the past. Past present Eddie was born four years ago.,We use the present perfect tense to talk about things that started in the past and still have some connection with the

2、present. Eddie has lived with Millie since he was born. Eddie has lived with Millie for four years.,present,Past,Past,present,4 years,present,present,閱讀六個句子，討論并完成問題1. She has helped the children with their lessons for an hour.2. They have learned English for three years.3. I /we have not told it to

3、him. 4. Jim has not seen the film before.5.Has he finished his homework yet? Yes, he has./No, he hasnt. 1.現(xiàn)在完成時結(jié)構(gòu) 肯定：_+_+_ 否定：_ + _+_ 一般疑問句：把_提前 肯定回答 _ / 否定回答_ 2.have not 可縮寫成_has not 可縮寫成 _,現(xiàn)在完成時的構(gòu)成,主菜單,上一頁,下一頁,助動詞have (has）+ 過去分詞,陳述句肯定形式。主語+ have/has+ 過去分詞+其它 e.g. I have had lunch. 已經(jīng)吃過午飯了。 He has

4、 gone to Beijing. 他去北京了。 陳述句否定形式。主語+ have/has+ not+過去分詞+ （在助動詞have/has后+not，可縮寫為havent/hasnt） e.g. I havent had lunch. 我還沒吃午飯 He hasnt gone to Beijing. 他還沒有去北京。,上一頁,下一頁,主菜單, 現(xiàn)在完成時的基本句型,一般疑問句形式及其答語。Have/Has+主語過去分詞 （將助動詞have/has提前，句末加問號） 肯定回答：Yes , 主語 have/has. 否定回答：No , 主語 havent/hasnt. Has he gone t

5、o Beijing? 他去過北京了嗎？ Yes, he has./No, he hasnt. 特殊疑問句形式。（疑問詞+一般疑問句） 特詞+ have/has+主語過去分詞？ e.g. Where has he gone? 他去了哪里？,上一頁,下一頁,主菜單,move live love like,動詞的過去式和過去分詞的構(gòu)成:,visit repair watch finish,visited visited repaired repaired watched watched finished finished,moved moved lived lived loved loved lik

6、ed liked,verbed,以不發(fā)音的e 結(jié)尾d,一.規(guī)則變化,stop mop trap plan,stopped stopped mopped mopped trapped trapped planned planned,注:以一個輔音字母結(jié)尾的重讀閉音節(jié)詞,雙寫最后一個輔音字母ed,雙寫ed,study hurry,studied studied hurried hurried,去yied,注:以輔音字母加y結(jié)尾的詞,去yied.,動詞的過去式和過去分詞的構(gòu)成:,過去分詞的構(gòu)成,上一頁,ABB,AAA,ABC,ABA,二.不規(guī)則變化,見課本第122頁。,活動一(仿照例句看表格造句）,

7、We,clean the room,clean the window,see a film,cook dinner,They,She,climb the tree,go to Beijing,visit the Great Wall,My father,1. We _ the room but we _ cleaned the window.,2. _ you _ the room? Yes, _ _ you _ the window? No, _,have cleaned,havent cleaned,Have,cleaned,we have,Have,We havent,cleaned,H

8、e,climb the hill,finish her homework,Watch Beijing Opera,活動二 Chat time (Exercise C) M : _ you _ (see)any films recently, Sandy? S : No, I _.What about you? M : I _ (see) one last Saturday. S : Whats it about? M : Its about the changes in Beijing over the past century. From this film,I _(learn) more

9、about Beijings past and present. S: Oh, I think I _ (hear) about the film. Do you plan to see it again? M: Yes, Id like to.,Have,seen,havent,have seen,have learnt,have heard,現(xiàn)在完成時的時間狀語,常與不確定的時間狀語連用，如:already, never, ever, just, yet, before, so far, in the past few years等,表示“到目前為止”所發(fā)生的動作.,上一頁,下一頁,主菜單

10、,現(xiàn)在完成時的時間副詞和時間短語:,1. 副詞already和yet。already一般用于肯定句中，yet一般用于否定句和 疑問句中。 如: We have already finished our homework/already. 我們已完成作業(yè)了。,They havent finished their homework yet. 他們還沒有完成作業(yè)。,“already” 用于現(xiàn)在完成時的肯定句中, “yet” 用于現(xiàn)在完成時的否定句和疑問句中. 用“already” “yet”填空 He has ( ) visited many places in China. ( ) 注意 alre

11、ady 在句中的兩種位置. The train hasnt arrived .火車（到現(xiàn)在）還沒有到。 Has she arrived ? 她已經(jīng)到了嗎？Hasnt he come ? 她還沒來嗎？,already,already,yet,yet,yet,- I have never been to the Great Wall. 我從未去過長城。,副詞ever 和never。多用于否定或疑問 句中，表示“曾經(jīng)”或“從未“等。 如: - Have you ever been to the Great Wall? 你曾經(jīng)去過長城嗎?,He has been there twice recentl

12、y. 近年來他去過那里兩次了。,3. 用表示到說話為止的過去時間狀語, 如 : just, before, recently等。 如: I have seen her before, but I can not remember where. 我以前見過她，但記不起在哪里見過。,Conclusion,陳述句,have/has后，句末,疑問句,主語后,陳述句,have/has后,否定陳述句,have/has后,否定陳述句 疑問句,句末,肯/否定陳述句,疑問句,句末,1,2,3,4,5,智力大考驗,寫出下列動詞的過去分詞,travel _ visit _ live _ miss _ move _

13、learn _,be _ give _ see _ make _ put _ come _,1.Have you done your homework _? (for, just, yet) 2.I have _ been to Chengdu. (ever, never, yet) 3.He has _ washed the dishes. (already, ever, for) 4.Have you cleaned your room _? (for, just, yet) 5.Have you _ ridden a horse? (ever, for, yet) 6.They have

14、 _ arrived. (ever, just, yet) 7.We have not completed the project _. (already, for, yet),yet,never,already,yet,ever,just,yet,課堂檢測,Why do I look so happy?,A guessing game,Have you _?,A guessing game,Why is Yao Ming so tired?,Has he _ ?,句型轉(zhuǎn)換,1.They have finished their homework. (改為一般疑問句，并做肯定回答) 2.Mr.

15、and Mrs. Li have come back.(改為否定句) 3.John has played this computer game a few times.(改為否定句) 4.We have seen that film. (改為一般疑問句，并做否定回答) 5.Mr. Dong has repaired over ten bikes since last Monday. (改為否定句),課堂檢測,I _ (do) my homework already. He _(not finished) his homework yet. _you ever _(be) to Beijing? We _ never _ (see) such an exciting match before. Mother _ just _(clean) t