现在完成时难点瞬间动词转换成延续性动词

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【#第一文档网# 导语】以下是®第一文档网的小编为您整理的《现在完成时难点瞬间动词转换成延续性动词》，欢迎阅读！
动词,延续性,难点,换成,瞬间

现在完成时难点瞬间动词转换成延续性动词

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。

当句子为否认句时，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. They have kept it since 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————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

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of

be in join joined joined be in been in 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

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