表达喜好:

IpreferAtoBbecause……IfIhaveachoice，

Iwill……（arealpossibility）IfIhadachoice，

Iwould……（notarealpossibility，justwishing）

叙述：When I was a high school student，I went to Guizhou to visit some friends.

After I graduated from high school，I……

During my visit to Guizhou last year，I……

Last year during the Spring Festival，I went to Guizhou to visit some friends.（Also use“Whenever”or“While”）

比较和对比：A is much better/worse than B.

A is not nearly as good as B.

A is not quite as important as B.A is almost as tall as B，but notquite