Only when he started to explain -------- the reason for this

问题描述:

Only when he started to explain ________ the reason for this.
A.she realized B.did she realize
C.she had realized D.had she realized
After that we never saw her again nor _______ from her.
A.did we hear B.we heard
C.had we heard D.we have heard
Scarcely _______ the room _______ the phone rang.
A.I had entered…when B.Had I entered…then
C.had I entered…when D.have I entered…when
希望有详细的讲解,顺便说说每句的意思~
参考答案是BAC
1个回答 分类:英语 2014-09-24

问题解答:

我来补答
1.Only when he started to explain( did she realize ) the reason for this.
就在他开始解释的时候,她才明白其原因.
Only强调状语置于居首时,使用部分倒装,即把谓语的一部分(助动词、情态动词和系动词be)放到主语前.本句中 Only 强调时间状语when he started to explain,所以答案应选B.
2.After that we never saw her again nor( did we hear )from her.
从那以后,我们再也没见过她,也没有关于她的任何消息.
否定副词、连词neither,nor,never,hardly,scarcely,little等及含有否定词的介词短语,如in no time等置于句首时,使用部分倒装.
3.Scarcely (had I entered) the room( when) the phone rang.
我一进房间电话铃就响了.
和上一题一样,scarcely放于句首句子使用部分倒装.另外,Hardly / Scarcely had sb.done sth.when...是固定结构.
 
 
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