a car knocked the boy over as he was beginning to cross the road 这里的as可以换成when 或者while吗为什么呢
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![a car knocked the boy over as he was beginning to cross the road 这里的as可以换成when 或者while吗为什么呢](/uploads/image/z/7548176-56-6.jpg?t=a+car+knocked+the+boy+over+as+he+was+beginning+to+cross+the+road+%E8%BF%99%E9%87%8C%E7%9A%84as%E5%8F%AF%E4%BB%A5%E6%8D%A2%E6%88%90when+%E6%88%96%E8%80%85while%E5%90%97%E4%B8%BA%E4%BB%80%E4%B9%88%E5%91%A2)
a car knocked the boy over as he was beginning to cross the road 这里的as可以换成when 或者while吗为什么呢
a car knocked the boy over as he was beginning to cross the road 这里的as可以换成when 或者while吗
为什么呢
a car knocked the boy over as he was beginning to cross the road 这里的as可以换成when 或者while吗为什么呢
可以换成when,但不能换成while.在表示当...的时候,when与as可以通用,但while要用于动作持续发生的场合.
当从句中的谓语动词是持续性的动作时,我们可以用while, when或as。
如
While / When / As I was walking down the street, I noticed a police car in front of the bank.我顺着马路往前走时,发现银行门前停着一辆警车。
所以说,由于was beginning是延续性动词,可以...
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当从句中的谓语动词是持续性的动作时,我们可以用while, when或as。
如
While / When / As I was walking down the street, I noticed a police car in front of the bank.我顺着马路往前走时,发现银行门前停着一辆警车。
所以说,由于was beginning是延续性动词,可以进行互相转换
收起
可以