切入点：
万能理由：
Relax/let out of stress
Enhance relationship with sb./enlarge one’s social network/teamwork
money(常用)---reduce the burden of family
acquire a variety of skills /abilities,不推荐使用experience--------------具体工作：Communication&patient&organization&plan&computer skills
Find out what you are really interested in
Broaden one’s horizons
对于Gov：Gov:support the weak and the poor
For Country:change the image of a country
web--technology has made it possible
Acquire/gain/obtain knowledge,考虑课程是否有等级限制
分主体是将题干中的主体分成多类，分别评述对该对象有无好处。
分角度阐释自己观点的好处，对立观点的坏处。
实词分类eg：主体段一：(For children；)；主体段二：(For other audience;For movie produce;For movie industry;)
