5. Ronald Reagan had served two terms as governor of California before ___ President.
(a) he became (b) when becoming (c) became (d) did he became
答案: a 为什么不选c? 主句和从句主语一致时,不是可以省略从句主语吗?
14.Big-band jazz relies on fixed arrangement,where _____ than one instrument playing some of the parts, rather than on improvisation.
(a) is more (b) whenever more (c) there is more (d) more
答案:c 为什么不选 d? there is 不是可以省略掉吗?
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省略的是主语和be 动词,此处如果一定要省的话,觉得before becoming President较好一些。
where 作为连词,其后应是一个完整的句子!如果此处省略where,个人觉得可以如楼主所言。
呀,GG有空来语法区看看,真高兴!!!
省略句很多种形式,下面这条法则是托福中随处可见的,JJ看一下.
在时间,条件,让步,方式状语从句中,(不包括原因状语从句),若从句与主句一致,并且从句的谓语构成当中含有BE动词,那么从句主语和谓语中的BE动词可以同时省略.
这是个时间状语从句,但是从句中无be动词,所以从句主谓语均不能省.
谢谢。补充一下,在王海波语法第4讲里面说:
定语从句可以同时省略 that be,which be,who be.
特定装语从句和主句的主语一致时,可以同时省略从句的主系,从句引导词一般是:although,though,even though, if, when, while, as
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