基本主张：
“追求艰涩罕见的用语不如把普通词汇发挥到极致”
这次的雅思锦囊传授大家简单却能高攀七分的用法
play a/an adj. role/part in
"在...扮演...的角色"
示范：Speaking: In what ways are parks important?
Parks play an essential role in preserving natural resources and
wildlife habitat, protecting clean water and air, and providing
open space for current and future generations.
公园在保存自然资源和野生动物栖息地、保护干净的水与空气、
提供现在及未来世代开放空间方面扮演重要的角色
在 Writing Task 2 更是超好用：
题目 应用
↓↓↓ ↓↓↓
Some people who have been Some people argue that those who
in prison become good citizens have received a prison sentence
later, and it is often argued can play a role in helping teenage
that these are the best people boys and girls recognize the negative
to talk to teenagers about consequences of being involved in crime.
the dangers of committing a
crime. To what extent do you
agree or disagree?
很容易找到题目可以应用这个句型：
(1) These days, more fathers stay at home and take care of their
children while mothers go out to work. What could be the reasons
for this? Do you think it is a positive or a negative development?
Answer: Fathers seem to play an increasingly important part in child care
as the traditional roles of mothers are turning into breadwinners.
注：as 连接词，解释为当；a breadwinner <