题目内容：

    Language students often think they have memory problems. They worry because they can't remember words. In fact, the problem usually isn't with their memory. The problem is with how they study.

To remember words better, you need to understand how memory works. There are two kinds of memory: short-term and long-term. When you see, hear, or read something, it goes first into short-term memory. But short-term memory lasts for only a few seconds. You will only remember something longer if it goes into long-term memory. Your long-term memory is like a very big library with many, many books. And like a library, it's organized .When you put away a book - or memory - you can’t just leave it anywhere. You have to choose a place where you can find it again.

How can you do this with vocabulary? The answer is to work with the word and think about the word in new ways. You can do this by writing new sentences that include it. Even better, you can invent a little story about the word, with people or places that you know. Another way is to make a picture in your mind with the word. For example, if the word is "height", you can think of the tallest person you know and try to guess his or her height. All of these activities are good ways to think about words. They make the meaning of words stronger in your long-term memory. And they give a way to find a word when you need it.

1.In the writer's opinion, students can't remember words because_____.

A.they have memory problems B.they are too worried

C.they don't use a proper way D.they don't like to study

2.Which is TRUE about memory according to the passage?

A.Short-term memory is seldom used.

B.What we see goes into long-term memory first.

C.We will forget a word soon if it goes into short-term memory.

D.We will never forget a word if it goes into long-term memory.

3.The underlined part in Paragraph 2 means long-term memory____.

A.keeps many books like a large library B.works like a well-organized library

C.provides any book you want D.leaves memory anywhere

4.This passage mainly tells us about_____.

A.language students' problems in study B.how to make the meaning of words stronger

C.short-term and long-term memory D.how to improve ways to remember words