现在完成时中，瞬间动词转变成延续性动词都在什么情况下?或者是瞬间动词如何转变为延续性动词呢？ 就像
现在完成时中，瞬间动词转变成延续性动词都在什么情况下?或者是瞬间动词如何转变为延续性动词呢？
就像类似这道题:
这些词同理。
现在完成时之瞬间动词转变成延续性动词
一、for\since:
1)for+一段时间，常常可以发现for+数字，for three months for a long time for many years
2)Since+时间点，常常可以发现
a. since+月份，年份，表示时间的几点 since September since 1990 since 7 o’clock b. since+一段时间+ago； since two years ago since ten months ago
c. since+ last+.... since last month since last year
二、现在完成时的结构式 has\have done 请注意第三人称：she\he\人名...+has
三、当句子为肯定句，且居中出现for\since的时候，句中的时态要用现在完成时，且句中的动词要用延续性动词。
当句子为否定句时，句中的动词可以为瞬间动词，表示某个动作不发生的状态已经持续了......
四、在有for\since的现在完成时的从句中，如何将瞬间动词转换成延续性动词
以borrow——keep为例子
They borrowed it last week. 分析：
1）我们已经知道现在完成时的标志就是has\have done，因此第一步就是看主语，主语时They，我们选择have done。
2）因为borrow——keep.而keep——过去分词：kept，因此，have borrowed就需要改成have kept.
3）Since后面只能接时间点，而last week就是一个时间点，因此，since后面直接填写last week。
五、常考的瞬间动词：
原形 过去式 过去分词 动词原形 动词过去分词
1. die--be dead die died died be dead been dead
2. borrow--keep borrow borrowed borrowed keep kept
3. leave--be away from leave left left be away from been away from
4. buy--have buy bought bought have had
5. begin--be(on) begin began begun be been
6. join--be a member of join joined joined be a member of been a member of be in join joined joined be in been in
1/2
7.become--be become became become be been
8.Open\close--be open open opened opened be open been open
9.finish--be over finish finished finished be over been over
10.put on--wear put put put wear worn
11.catch a cold--have a cold catch caught caught have had
12.go to--be in go went gone be in been in
13.get to know--know get got got know known
14.Arrive in\at--be in arrive arrived arrived be in been in
15.Move\come\get to--be in
16.go out--be out go went gone be been Move\come\get to--be in be in been in
举例
Mr. Smith came to this school in September.
Mr. Smith ___has____ ____been____ at this achool_____since___ September.
分析：
1, come--came--come
2, 本来应该是填写has come to，但是come to要转换成be in
3, 而be的过去分词为been因此我们填写的内容为 has been in
4，因为句子中已经有了at
，所以我们只需要填写has been
一、for\since:
1)for+一段时间，常常可以发现for+数字，for three months for a long time for many years
2)Since+时间点，常常可以发现
a. since+月份，年份，表示时间的几点 since September since 1990 since 7 o’clock b. since+一段时间+ago； since two years ago since ten months ago
c. since+ last+.... since last month since last year
二、现在完成时的结构式 has\have done 请注意第三人称：she\he\人名...+has
三、当句子为肯定句，且居中出现for\since的时候，句中的时态要用现在完成时，且句中的动词要用延续性动词。
当句子为否定句时，句中的动词可以为瞬间动词，表示某个动作不发生的状态已经持续了......
四、在有for\since的现在完成时的从句中，如何将瞬间动词转换成延续性动词
以borrow——keep为例子
They borrowed it last week. 分析：
1）我们已经知道现在完成时的标志就是has\have done，因此第一步就是看主语，主语时They，我们选择have done。
2）因为borrow——keep.而keep——过去分词：kept，因此，have borrowed就需要改成have kept.
3）Since后面只能接时间点，而last week就是一个时间点，因此，since后面直接填写last week。
五、常考的瞬间动词：
原形 过去式 过去分词 动词原形 动词过去分词
1. die--be dead die died died be dead been dead
2. borrow--keep borrow borrowed borrowed keep kept
3. leave--be away from leave left left be away from been away from
4. buy--have buy bought bought have had
5. begin--be(on) begin began begun be been
6. join--be a member of join joined joined be a member of been a member of be in join joined joined be in been in
1/2
7.become--be become became become be been
8.Open\close--be open open opened opened be open been open
9.finish--be over finish finished finished be over been over
10.put on--wear put put put wear worn
11.catch a cold--have a cold catch caught caught have had
12.go to--be in go went gone be in been in
13.get to know--know get got got know known
14.Arrive in\at--be in arrive arrived arrived be in been in
15.Move\come\get to--be in
16.go out--be out go went gone be been Move\come\get to--be in be in been in
举例
Mr. Smith came to this school in September.
Mr. Smith ___has____ ____been____ at this achool_____since___ September.
分析：
1, come--came--come
2, 本来应该是填写has come to，但是come to要转换成be in
3, 而be的过去分词为been因此我们填写的内容为 has been in
4，因为句子中已经有了at
，所以我们只需要填写has been
温馨提示：答案为网友推荐，仅供参考
第1个回答 2015-04-06
表示经过一段时间的完成时需要用延续性动词。
表示某个时间点的过去时用瞬间动词。
如何转变？
基本上没有规律。一般瞬间动词对应的介词和形容词表示延续，具体还是要记住。本回答被网友采纳
表示某个时间点的过去时用瞬间动词。
如何转变？
基本上没有规律。一般瞬间动词对应的介词和形容词表示延续，具体还是要记住。本回答被网友采纳
相似回答