Unit 2 I used to be afraid of the dark

课时3-4 Reading and Writing

一.完形填空

　　A good dictionary is a very good tool(工具). It will tell you not only what a word means but also   1  it is used. A dictionary needs to be printed (印刷) again about every ten years. Languages develop and a good dictionary must show these new changes.

　　A new English dictionary will only tell you  2  most people use the language today. It will not tell you what is right or wrong. It may tell you the right time to use a word. If only many people use a word, a dictionary will either tell this or not list(编列) it.   3  dictionaries will tell you many interesting facts. If you type a word and the word is too long, look it up in your dictionary. All dictionaries show you   4  to break (分拆)a word. And they also  5  you how a word is spoken.

　　Every dictionary, of course, tells you what a word means. But some words, like “get” or “take”, may have dozens of meanings. In some dictionaries, the main meanings are often list first. The other newest meanings are listed last. So before you use your dictionary, you should always   6  the front part. This part explains  7  .