事理说明类初中英语作文常用语

Students take great interest in the optional courses.

学生对选修课非常感兴趣。

First, … Second, … Third, …

第一，……。第二，……。第三，……。

Make some investigations to find out the cause of the pollution.

做些找出污染原因的调查。

It is not only… but also…

它不仅……而且……

We use money to buy all kinds of things.

我们用钱买各种各样的东西。

The earliest coins in the world were used in China.

世界上最早的硬币出现在中国。

Coins can be made of many different kinds of metal.

许多不同种类的金属都可用来铸币。

Do you know how to look up a word in the dictionary?

你知道如何使用字典查找单词吗？

There are some dos and don'ts for the lab needed to be paid attention to.

这里是一些实验室需要注意的事项。