what has happened to the earth in the last ten years 为什么是完成时呢?讲细一点~
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whathashappenedtotheearthinthelasttenyears为什么是完成时呢?讲细一点~whathashappenedtotheearthinthelasttenyears为什
what has happened to the earth in the last ten years 为什么是完成时呢?讲细一点~
what has happened to the earth in the last ten years 为什么是完成时呢?讲细一点~
what has happened to the earth in the last ten years 为什么是完成时呢?讲细一点~
in the last ten years 是现在完成时的标志.表示从现在起到过去的那时间,因此是一个动作发生在过去,并持续到现在,即动作既涉及到过去,又涉及到现在,因此用现在完成时.
类似的还有:over the last few hours,recently,since +一段时间等等.
这里需要注意的是:
现在完成时讲的是对现在产生的影响。此处问这个问题的前提肯定是现在已经产生了一些影响,那我们就会问过去的十年到底发生了什么,会产生现在的影响,所以考虑用现在完成时。
此外in the last ten years 也是现在完成时的一个标志。
希望帮到你!...
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这里需要注意的是:
现在完成时讲的是对现在产生的影响。此处问这个问题的前提肯定是现在已经产生了一些影响,那我们就会问过去的十年到底发生了什么,会产生现在的影响,所以考虑用现在完成时。
此外in the last ten years 也是现在完成时的一个标志。
希望帮到你!
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