作品介绍:
现在完成时代
构成:
1.肯定句:have(has)+过去分词。
2.否定句:haven’t(hasn’t)+过去分词。
3.疑问句:把助动词have或has提到主语之前。
回答用yes,…have(has)./
no,…haven’t(hasn’t).
连用时间状语:already,yet,ever,never,
just,before等。
“仍然,还”用在疑问句和否定句..[ 查看全部]
现在完成时代
构成:
1.肯定句:have(has)+过去分词。
2. 否定句:haven’t(hasn’t)+过去分词。
3. 疑问句:把助动词have或has提到主语之前。
回答用yes, …have(has). /
no, …haven’t(hasn’t).
连用时间状语:already, yet, ever, never,
just, before 等。
“仍然,还 ” 用在疑问句和否定句中,放在句末。
i haven’t read this book yet .
have you had breakfast yet ?
“从来不” 用在否定句中,放在句中。
is he famous ?i have never heard of him .
“以前”用在完成时中,放在句末。
i have never read this kind of books before.
exercise
根据所给情况,用just,already或yet造句。
1.after lunch you go to see a friend at her house.she says‘would you like something to eat?’ you say: no, thank you. _______________( have lunch )
2.joe goes out. five minutes later,the phone rings and the caller says ‘can i speak to joe?’ you say: i’m afraid _________________.( go out )
3.you are eating in a restaurant this evening. the waiter thinks you have finished and starts to take your plate away.you say: wait a moment !_______________________
( not / finish )
4.you are going to a restaurant this evening.
you phone to reserve(预定)a table. later your friend says ‘shall i phone to reserve a table? ’you say: no,__________________ it (do)
1. i am a doctor. i began to work when i was 22.now , i am 26. i ________ for four years.
2. we went to the usa last monday. today is monday . we _________ (stay) in the usa since last monday.
b级真题
since and for
一、用for和since填空。
______three hours
______three o’clock
______two days
______yesterday afternoon
______i came here
______last sunday
1.they’ve known each other since_______.
a.1995 b. three years
2.i’ve been interested in chinese for______.
a. last year b. one year
3. she has been a doctor for______.
a. two years b.two years ago
4. i’ve had a headache since_______.
a. i got up this morning b. five hours
6. my parents have owned this house for______.
a. a long time b. many years ago
7. they’ve been in love since______.
a. last spring b. three months
8. we have known each other since_____.
a. one year b. last year
9. --how long have you been like this?
--since______. a.last night b. two days
10.--how long has she worked here?
--she has worked here for_____.
a. 1993 b. six years
不规则动词的过去式以及过去分词巧记规律
aaa: put– put –put let—let –let
aba: become—became—become
abb: stand—stood—stood
abc: eat— ate—eaten
aaa
cost-cost-cost read-read-read
put-put-put cut-cut-cut
let-let-let set-set-set
beat-beat-beat hit-hit-hit
hurt-hurt-hurt spit-spit-spit
rid-rid-rid
一、原形、过去式和过去分词的词形和读音都相同的单词,结尾字母一般是t或d。
特殊:动词read的过去式和过去分词虽然词形与原形一致,read-read-read,但发音分别是[ri:d]-[red]-[red]。
总结现在完成时:
1、构成:have / has +过去分词。
2、概念:
(1)表示过去或已经完成的某一动作对现在 成的影响或结果。常与下列状语连用:already, just, yet, ever, never, before
(2)表示过去已经发生,持续到现在的动作或状态,可以和表示从过去某一时刻延续到现在(包括“现在”在内)的一段时间的状语连用。
a.for和表示一段时间的词组连用。
如:for 3 years
b.since和表示过去某一时刻的词或词组连用。
如:since 1997, since two years ago,since last week
[ 收起] |