none能单独做主语吗?2-I'mleavingforShanghaitomorrow,buti'mworriedabooutmydog.-Don'tworry,I'lllookafterityou'reaway.A.ifB.sinceC.duringD.while选什么?怎么区别?答案是D可是为什么呢?A和B呢?说成如果你

Question

none 能单独做主语吗?
2 -I'm leaving for Shanghai tomorrow,but i'm worried aboout my dog.-Don't worry,I'll look after it _____you're away.A.if B.since C.during D.while选什么?怎么区别?答案是D可是为什么呢?
A和B呢?说成如果你离开或自从你离开不也可以吗?1 none 能单独做主语吗?

Answer 1

1 none 能单独做主语吗?
答：可以.none作主语,多与of 构成短语 none of.{例如：None of them/us做主语}
none作主语,谓语动词单复数均可.但如做表语,则其单复数与表语一致.例如：
It is none of your business.闲事莫管.
no one 和none
a） none 后跟of短语,既可指人又可指物,而no one只单独使用,只指人.
b） none 作主语,谓语动词用单,复数均可,而no one作主语谓语动词只能是单数.
2 -I'm leaving for Shanghai tomorrow,but i'm worried aboout my dog.-Don't worry,I'll look after it _____you're away.A.if B.since C.during D.while选什么?怎么区别?答案是D可是为什么呢?
答：A.if {意：如果.（用于主将从现）}
B.since {一般引导现在完成时的时间状语从句；意：从...开始}
C.during{表示在某一段时间.意：在..期间}
D.while {意：当...时}
根据语意：D是正确的.
希望对你有所帮助!