文档介绍：Units 1-6复习(语言点)
I. 词组和习惯用语
Unit 1
pay for 付钱                                     come up with 提供,提出 
think of 认为,想起                               pick up 拾起,捡起
finish doing完成,做完                            sooner or later迟早  
encourage sb. to do sth. 鼓励…做…               fill in 填写,装满 
used to 过去常常                                 in the schoolyard 在校园里
on the shelf在架子上
Unit2
have a try       尝试                             all over the world 全世界
be famous for 以…而著名                        
no matter 不管                                    give up 放弃
both…and…   和…都                              ever since 从那时起,此后一直
come true       实现                              set off 出发
step into  进入                                   slow down 减慢
a crowd of 一批                                   be proud of 以…而骄傲
so far 到现在为止