22) attach importance to / lay emphasis on

The government attaches great importance to the protection of the environment.

23) not… bu t

Tom was not there but his brother was.

24) there is a chance that …

There is a chance that we can finish the task on time.

Chances are high that……

25）when it comes to…+名词/动名词

When it comes to his achievements in the past, he becomes really excited.

26）It seems as if…

It seems as if it is going to rain.

27）Only if…只有…才

Only if you go visiting the mountain by yourself, can you feel the beauty of it truly. Only in this way can you learn English well.

28）if only/ as long as 只要…就

If only you work hard, I believe you can get promoted.

3.常用短语

1.许多

可数名词: a great/good many

a large number of

many a +单数名词

不可数名词: a large amount of

a large sum of

a great deal of

两者都可：plenty of

2 把…看作

regard…as

view…as

consider…as