题目内容：

Grammar is the way a language works. People sometimes describe grammar as the “rules” of a language; but in fact no natural languages have rules. If we use the word “rules”, we believe that some people have made the rules first and now people speak the language, like a new game. But languages did not start like that. Languages were started by people making sounds which gradually(渐渐地) changed into words, phrases, and sentences. No commonly-spoken language is fixed. All languages change over time. What we call grammar is simply a description(描述) of a language at a particular time.

Do we need to study grammar to learn a language? The answer is “No”. Many people in the world speak their mother language without having studied its grammar. Children start to speak before they even know the word “grammar”. But if you are serious about learning a foreign language, the long answer is “Yes, grammar can help you to learn a language more quickly.” It’s important to think of grammar as something that can help you, like a friend. When you understand the grammar of a language, you can understand many things yourself, without having to ask a teacher or look in a book.

So think of grammar as something good, something helpful, something that you can use to find your way like a signpost(路标) or a map.

1. The writer of this passage believes that if grammar is described as “rules”, it would mean that _______.

A. language is not a new game

B. language goes before grammar

C. rules are fixed by language

D. rules must be made to speak the language

2. In the first paragraph, we can see that ________.

A. grammar should be changed at a particular time

B. grammar must be simple to describe a language

C. languages were formed by people now and then

D. language is changing, and its grammar is changing too

3.The writer thinks that grammar helps when ________.

A. we learn a foreign language

B. we ask someone to make rules

C. we speak our native language

D. we look up something in a book

4. Which of the following can be the best title for this passage?

A. Grammar Is the Rules of a Language

B. The Change of Language

C. Grammar Is Your Friend

D. How to Study Grammar