現(xiàn)在完成時講義及練習

1、grammar 語法:simple present tense 現(xiàn)在完成時a 表示過去發(fā)生或已經(jīng)完成的某一動作對現(xiàn)在造成的影響或結果i am doing my homework. i have done my homework. b 表示動作或狀態(tài)從過去某一時刻開始，一直延續(xù)到現(xiàn)在， 而且可能還要繼續(xù)下去。i ve known alice for three years. 現(xiàn)在完成時的構成：主語+have/has + 動詞的過去分詞 . i have done my homework. 1.否定： have, has后面加 not . i have not done my homework.

2、2.一般疑問句： have, has提到主語前have you done your homework? 區(qū)別：has gone to: 表示某人已去了某地，而沒有回來(去了沒回 ) has been to : 表示去過某地 (去過已回來 ) has been in/at(in表示相對大一些的地點 ;at 表示相對小一些的地點 ): 表示一直呆在某地 ,常與時間段搭配 . since+時 間點 =for+ 時 間段since+一般 過去 時態(tài)的時間狀語從 句=since+時間點 +ago現(xiàn)在完成時往往同表示 不確定的過去時間狀語 連用already(肯定句中 )，yet(否定，疑問，句末 )，j

3、ust(剛剛), before(之前), recently(最近), still, lately, never 等: i have already finished my work. i havent finished my work yet.(否定句 ) have you finished your work yet?(一般疑問句 ) 動詞過去式和過去分詞的變化相同一般在動詞詞尾直接ed. 如：pick picked picked; wish wished wished; stay stayed stayeda-a- a: let let let; put put put; read rea

4、d read, cut cut cuta-b-b: lend lent lent; build built built; send sent sentbuy bought bought; bring brought brought; a-b-c: choose chosechosen dodid doneseesawseen drink drank drunkgowentgone take took takena-b-a: run ran run come came come練習一.選擇1. how long have you _ here? a. come b. got c. arrived

5、 d. been 2. my grandpa died _. a. at the age of my 2 b. for 2 years c. when i was 2. d. my age was 6. 3. jane has _ to beijing. she will come back tomorrow. a. been b. gone c. went d. never been 4. it is ten years _ i last saw her. a. after b. since c. for d. that 5.-who will go to the station to me

6、et lorry? -i will. i _ her several times. a. met b. have met c. had met d. will meet 二.用所給詞的適當形式填空1. i_ already _ (see) the film. i _ (see) it last week. 2. _ he _ (finish) his work today? not yet. 3. my father _ just _ (come) back from work. he is tired now. 4. where s li ming ? he _ (go) to the te

7、acher s 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. 9. he _ (go) to school on foot every day. 10._ you _ (find) your science book yet? 11. if it _ (be)

8、 fine tomorrow, ill go with you. 12. the students _ (read) english when the teacher came in. 13. look! the monkey _ (climb) the tree. 14. my mother _ (come) to see me next sunday. 15. ive lost my pen. _ you _ (see) it anywhere? 二對劃線部分提問1. nancy has broken the glass. _ 2. maria and jane have waited at the airport for two hours. _ 3.they hav