18.It takes sb. some time to do sth.(干某事化费某人多少时间)
=sb.spend some time on sth. (in) doing sth.eg.It took me half an hour to do the work.

=I spent half anhourin doing the work.

17.It is good (nice)of+宾格+to do sth.

eg.It is very good of you to teach me English. (你教我英语真是太好了)

16.had better do sth.最好干某事.否定:had better not do sth.

特别注意:had better后面跟be动词词组,不可漏掉be.eg.You'd better catch a train.

You'd better not talk in class.You'd better not be late for the class.

15.prefer A to B=like A better than B 更喜欢A不怎么喜欢B.

eg. I prefer fish to chicken.= I like fish better than chicken

14.I don't think+肯定句 我想...不   eg.I don't think I'll take it. (我想我不买它了)

请注意:中文意思否定在从句中,但是英语的表达否定在主句中。

13.find it +形容词+to do eg.I find it useful to learn English well. (我发觉学好英语是很有用的)

   find +宾语 +名词eg.I find him a good boy. (我发现他是个好男孩.)

   find +宾语 +形容词

eg.I find the door open/closed. (我发现门开/关着)  I find our bags filled with/full of presents. (我发现我们的包装满了礼物)

12.one of +最高级＋复数 最...之一eg.Miss Zhao is one of the most popular teachers.

11.What...for?为何目的？为什么？eg.What do you want a science lab for?=Why do you want a science lab?

10.What...be like?...是什么样的？ 
eg.⑴What's the weather like? 天气如何？⑵What's your school like? 你们学校是什么样的？

9.I don't know what to do.我不知道该怎么办？   I don't know how to do. ×