21、While reading a book in English, every few lines of text, you run across a word or two that you don't know. You look every new word in the dictionary. Bad move. All that does slow you down. Even electric or CD-ROM dictionaries can get in the way of your reading progress. A dictionary is like a road map. It can help you if younger lost and point you in the right direction. But if you stop to look at the "map" each time you take a step, you'll get nowhere fast .

On your English learning "journey （旅行）”, a dictionary Can be a helpful “travel companion"---if it is not overused. To help you start thinking in English, use an English-to-English dictionary. Otherwise（否則），you will always depend on your native（本國(guó)的）language and end up translating in you head.

A good dictionary can help you do more than just find the meaning of a word. it can help you verify （test and check） spelling, check word forms and grammar usage, find example sentences and learn pronunciation. Some dictionaries even provide exercises to teach you how to use their resources（資源）.

Take time to get to know your dictionary. Learn the pronunciation symbols （符號(hào)）.

Understand what the abbreviations （縮寫字） mean. Try to master the important grammar rules. Look for charts, diagrams and lists that might be useful in the future. You will discover how helpful it can be to make friends with your dictionary. And as they say, "A friend in need is a friend indeed."

1．According to the passage,________________________

A．we should look up each new word we meet while reading

B．dictionaries will be helpful if we use them properly

C．we can't look up any new words we come across while reading

D．we can get everything we want in dictionaries

2．The underlined word "companion" means____________________

A．指南            B．札記            C．工具       D．路標(biāo)

3．Why do we need a good English-to-English dictionary?

A．Because it is a good friend.

B．Because it can help us to find the right direction if we get lost.

C．Because it can help avoid to think in our native language.

D．Because it can help us to start thinking in English and in Chinese.

4．The underlined word "that" in the last paragraph refers to （指） ____________ 

A．pronunciation symbols and grammar rules

B．a(chǎn)bbreviations and usage for grammar rules

C．the meaning of a word, spelling and grammar usage

D．charts, diagrams and lists

5．According to the passage, we learn that____________________

A．the more you use a dictionary, the better you can understand the article

B．the more you use a dictionary, the faster you may read

C．the more you use the resources in a dictionary, the more information you can get

D．the better a dictionary is, the more expensive it is