look after 照顾

look forward to doing sth. 期盼做某事

look into 调查；向里面看

look out 当心

look round 环顾四周

look up 查字典，向上看

3. insist

insist on/upon sth/ doing 坚持做，坚决做

insist that-clause 坚持认为, 坚持说... 从句通常用虚拟语气, (should) not +V原 而且主句的主语与从句的不一致

类似用法的词还有: suggest; demand; require

eg. Mother insisted that I should not watch TV all the time.

He insisted that we accept these gifts.

但是表示坚持一个事实, 一个主张或想法时, 不用虚拟语气

eg. He insisted that he caught sight of a man in the room at that time.

Ex. 她坚持说你那天晚上是在场的.

She insisted that you were present that night.

4. belong to 属于，是...的成员, 是...的组成部分, 是...的属性, 职能等

eg. All the goods here belong to the school.

Who does this garden belong to?

Put it back to which /where it belong after you have read it.

5. Although it feels as hard as stone , it easily melts when heated .

when heated = when it is heated , 省略了"主语+be"，这种省略句省略的主语应与主句的主语相同。

6. be made into 被制成...

be made of 用...制成(看得见原材料)

be made from 用...制成(看不见原材料)

be made for 为...制作

be made up of 由...组成