the book was written in 1946,{since when }the education system has saw great changes.逗号后面引导一个非限制性定语从句,以介词since开始,这不是介词+which的形式吗?为什么用when?选项since then为什么不对?
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![the book was written in 1946,{since when }the education system has saw great changes.逗号后面引导一个非限制性定语从句,以介词since开始,这不是介词+which的形式吗?为什么用when?选项since then为什么不对?](/uploads/image/z/11108527-7-7.jpg?t=the+book+was+written+in+1946%2C%7Bsince+when+%7Dthe+education+system+has+saw+great+changes.%E9%80%97%E5%8F%B7%E5%90%8E%E9%9D%A2%E5%BC%95%E5%AF%BC%E4%B8%80%E4%B8%AA%E9%9D%9E%E9%99%90%E5%88%B6%E6%80%A7%E5%AE%9A%E8%AF%AD%E4%BB%8E%E5%8F%A5%2C%E4%BB%A5%E4%BB%8B%E8%AF%8Dsince%E5%BC%80%E5%A7%8B%2C%E8%BF%99%E4%B8%8D%E6%98%AF%E4%BB%8B%E8%AF%8D%2Bwhich%E7%9A%84%E5%BD%A2%E5%BC%8F%E5%90%97%3F%E4%B8%BA%E4%BB%80%E4%B9%88%E7%94%A8when%3F%E9%80%89%E9%A1%B9since+then%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%8D%E5%AF%B9%3F)
the book was written in 1946,{since when }the education system has saw great changes.逗号后面引导一个非限制性定语从句,以介词since开始,这不是介词+which的形式吗?为什么用when?选项since then为什么不对?
the book was written in 1946,{since when }the education system has saw great changes.
逗号后面引导一个非限制性定语从句,以介词since开始,这不是介词+which的形式吗?为什么用when?选项since then为什么不对?
the book was written in 1946,{since when }the education system has saw great changes.逗号后面引导一个非限制性定语从句,以介词since开始,这不是介词+which的形式吗?为什么用when?选项since then为什么不对?
since then是副词短语,不能引导一个定语从句.
“The book was written in 1946”和“the education system has saw great changes”都是完整的句子,中间肯定是用连词连接的,副词没有这个功能.
定语从句有介词,一般我们都是用介词+which的,但是这个句子比较特殊,用一般的思路不好理解.我觉得可以这样想:
which在定语从句中是要充当成分的,像是主语或宾语.但是看后面的句子“the education system has saw great changes”,主谓宾是完整的.缺状语,那就用when,不用which了.
这个问题,我想后面是非限制性定语从句没错,但是后面的句子修饰的是1946这个时间,翻译为自从1946开始,泳衣修饰时间,当然用when,至于then 不能用的问题,我想英语里都是最佳答案,从语法角度,then没错,但是用了就不再是非限制性定语从句,因而,用when是最佳答案。嘿嘿,欢迎采纳...
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这个问题,我想后面是非限制性定语从句没错,但是后面的句子修饰的是1946这个时间,翻译为自从1946开始,泳衣修饰时间,当然用when,至于then 不能用的问题,我想英语里都是最佳答案,从语法角度,then没错,但是用了就不再是非限制性定语从句,因而,用when是最佳答案。嘿嘿,欢迎采纳
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因为这里的since when翻译成从那时候开始when是用来修饰the book was written in 1946