老款切诺基报价及图片:英语2道问题,请详细给出语法解释.!!!!!

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4 When ____ why he was so late ,he just looked at us and said nothing.
a.being asked b.asking c.asked d.to be asked 为什么选c
5 ___ from the tower, the city looks just magnificent.
a. To see b. Seeing c.To be seen d. Seen 为什么选D

其实两道题是一个类型。
所选词的从句在句中都做状语,并且是被动语语态。
以4为例,
按这两个标准来选,a,c,d,都可以,
但是,a.中表进行或将来,c.也有表将来的意味。c. 是过去分词,一方面表被动,一方面表过去,正合题意。
5.同上

1题是 因为这个句子是过去式,A为过去进行式,B为错误的,语法不通。 D为被动语态,语句不通
2题选D,以前高中老师讲过的,印象很深刻,应该为一个省略句:have seen

是这样的,英语句子中,从句中的主语如果和be动词在一起,则主语和be动词可以一起省略。注意,两者都要省略,不能只省略主语也不能只省略be。像:
After (he was) kept waiting an hour, John got so angry that he went away.
When (we are) reading ,we are supposed to be quiet.
省略可以让句子显得简洁,避免重复啰嗦。

4因为你可以把它看成是when he was asked why he ....
he was 省略
5.理解成原句:the city was seen from the tower....,
省略前面那部分
如果选C,就缺少了主语