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现在完成时之瞬间动词转变为持续性动词 一、兴趣导入：Teacher: Tom, why are you late for school every day?

Tom: Every time I come to the corner, a sign says, \ 二、知识点回顾：现在完成时基本用法 三、（1）专题讲解：

在完成时中,一个瞬间性动词(一次性动作)不能与表示一段时间的状语(for, since, how long等)连用,此时须将该瞬间动词改为延续性动词或状态动词. Eg:

buy ( bought ) --- have / has had 买 borrow (borrowed) --- have / has kept 借

die ( died ) --- have / has been dead 死

leave ( left ) --- have / has been away ( from ) 离开 begin ( began ) --- have / has been on 开始 join ( joined) --- have / has been in 参加

--- have / has been a ( party) member go (went) --- have / has been there / in 去

come/arrive/reach/get to --- have / has been here / in 来/到达 end (ended) ----- have/has been over 结束

eg. The film began five minutes ago.

------The film has been on for five minutes.

------It has been five minutes since the film began.

用“be＋形容词”代终止性动词

1、be＋married代marry 2、be＋ill代fall (get) ill 3、be＋dead代die

4、be＋asleep代fall (get) asleep 5、be＋awake代wake/wake up 6、be＋gone代lose,die,sell,leave 7、be＋open代open 8、be closed代close/shut

用“be＋副词”代终止性动词 1“be＋on”代start,begin 2“be＋up”代get up

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3“be＋back(to)”代return to,come back to,go back to

4“be here (there)”代come(arrive,reach,get) here或go (arrive,reach,get) there等等

用“be＋介词短语”代终止性动词

1.“be in/at +地点”代替go to /come to 2.用be in the army 代替join the army 3.“be in/at +地点”代替move to

四、 巩固练习：

将瞬间动词变成延续性动词表：

1. have arrived at/in....... got to/reached...... come/gone/moved to...... →

2. have come/gone back/returned → 3. have come/gone out → 4. have become →

5. have closed / opened→ 6. have fallen ill→ 7. have died → 8. have left...... →

9. have fallen asleep/got to sleep → 10. have finished/ended/completed → 11. have married →

12. have begun →

13. have borrowed/bought → 14. have/has gone to →

15. have joined/have taken part in the league/the Party/the army→

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五、拓展训练:

1.你曾经吃过鱼和薯条吗？ 2. 我刚刚丢了我的化学书。 3. 我以前从来没去过那个农场。 4. 他已经吃过午饭. 5. 你已经看过这部电影了吗？ 6. 我哥哥还没回来。

7.这本字典我已买了三年了。 8.他离开中国三年了。 9.我认识他们五年了。 10.我的妈妈拥有这些围巾十几年了。