人教版八年级下英语期中复习知识点讲义（Unit1-Unit5）
4. agree：(1)agree to do sth. 同意做某事
(2)agree with sb. 同意某人
(3)agree on sth.双方就某事达成一致
(4)agree that+that从句 同意......
5. trouble：(1)get into trouble陷入困境
(2)be in trouble处于困境
(3)get sb. into trouble使某人陷入困境
(4)have trouble with sth.在某事方面有困难
(5)have trouble (in) doing sth.在做某事方面有困难
6. use(1)be/get used to doing sth.习惯于做某事
(2)used to do sth.过去常常做某事
(3) sth. be used to do......某物被用来做（表被动关系）......
(4)sth. be used for doing sth.某物用于/被用于做某事（强调用途）
7. take a risk/take risks冒险 at risk在危险中
at the risk of doing sth.冒生命危险做某事
8. run out（花光：物作主语） run out of（人作主语）=use up
9. mean to do sth.打算做某事 mean doing sth.意味着做某事
10. important(adj.)----unimportant(adj.不重要的)----importance(n.)
11. be in control of 掌管，控制