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you finished your homework yet? 而still则常用于主语与谓语动词之间,如:We still can't decide what to do. 但也有时用于be 动词之后,如:He is still here.
[误] He is very higher than I am.
[正] He is much higher than I am.
[析] much可以用来修饰比较级,而very则用来修饰形容词原级,如:I'm very tired. [误] - Can I walk to the station?- You'd better not. It is very far.
[正] - Can I walk to the station?
- You'd better not, It is a long way.
[析] for一般用在疑问句与否定句中,如:How far is it from here to the station? 又如:It isn't far.
[误] I've ever been to America.
[正] I've been to America once.
[析] once 多用于肯定句,而ever则用于疑问句,否定句,及条件状语从句中,如:Have you ever been to London?
[误] - Could you pass the exam this time?
- No, I am not afraid so.
[正] - Could you pass the exam this time?
- No, I'm afraid not.
[析] 在肯定的答语中我们可以用so来代替上句所讲的事件,如:Do you think she is a good student? Yes I think so, /I hope so, /I believe so/ I'm afraid so.但在否定的答语中,英语口语的习惯用法则有所不同,如,I don't think so 而在hope, belive 与 afraid后则常用not, 如:I hope not.
[误] She didn't work enough hard, so she couldn't pass the exam.
[正] She didn't work hard enough, so she couldn't pass the exam.
[析] enough 可以作名词用,如:Enough has been said for how to learn English well. (对于如何学好英语已经讲的足够多了。)另外它可以作为形容词,如:I have enough money (or money enough) to buy this dictionary. 注意 enough作为形容词时即可放于名词前又可放于名词后,在初中范围的考题中多用于名词之前。如果enough 作为副词用,那么它一定要放在被修饰的形容词或副词之后。