1 An advantage of +主语+that +句子 …的优点是。。
An advantage of using the solar energy is that it will not create (produce) any pollution.
2 The reason why + 句子+is that ….的原因是
The reason why we have to grow trees is that they can provide us with fresh air.=supply fresh air
3 so …be+主语+ that +句子
So precious is the time is that we can not afford to waste it.
It is a waste of time going to doctor with most mild complaints.
4 形容词+as+主语+be，主语（subject）+V 虽然….
Rich as our country is, the qualities of our living are by no means satisfactory.
5 The –er the –
6 Technology 技术 supply to 应用于 supply for 申请
Our effort will pay off if the result of the rearch can be applied to the development of the technology.
7 accidentally by chance 都是’偶然’的意思
8 is said to 据说。。
The muum is said to have built one hundred yeas ago.
9 image improve your image 提高形象
Imagine 想象 we can’t imagine what he has lived through . 我们无法想象他都经历了什么。
Imagine a world without telephone.
Imagine you are driving a car .
