1)though, although, as, while
A. though和although不能与but连用
B. as引导让步状语从句,意思与 although/though相同,但是as通常放 在句首,且主谓要倒装,as前面的词可 以是形容词、副词,也可以是动词、名 词。
1)Rich as he is, he is not happy.
You should try to get a good night’ sleep ________ much work you have to do.
Hale Waihona Puke A. howeverB. no matter
C. although D. whatever
解析:答案为A。本题考察让步状语从句的 用法
______I accept that he is not perfect, I do actually like the person.
= Although he is a child, he knows what to do at this time.
C. while引导让步状语从句,只能放在句首, 意思与although/though相同。
While I feel sympathetic, I really can’t do anything to help them. While he may be right, we don’t agree him to do it.
where you have any questions.
3. 原因(because, as, since, now that, seeing that, considering that; when = since, considering that 既然;考 虑到; 介词短语表原因– because of, thanks to, due to, owing to; for )