3.What if you feel comfortable about doing a task by yourself？（如果……怎么样）
4.In sports teams each player has a clear role,and there are few occasions when members are confused or uncertain of their roles.（定语从句）
5.It is of great importance for the team and its coach to strike the right balance.（of+抽象名词）
6.As years went by,she worked in many places.（as引导的状语从句）
7.It is well-known that at the age of 17 to 18,many young people dream of going to university....（众所周知）
8.No matter how hard you try,working towards a career for which you are not suitable is not going to get you there.（让步状语从句）
9.It is no use for everybody to try to pursue the same career.（亦可用It is no use doing sth.）
10.In China,as in other countries,the government realizes that the future welfare of their citizens is closely linked to education.（as表示“像”）
11. ...the number of students in some schools is so low that students of several different grades are taught in the same classroom.（主谓一致）
12.Look at the shape of the graph or chart,rather than the details,to spot this.（表示“不顾，而不是”）
Units 13－14
Ⅰ.重要词汇及短语
1.take place发生，产生；进行，举行