阅读短文，然后根据其内容回答问题。

　　Why do we need to throw less away? There are two reasons．One is that some resources(资源)are nonrenewable(不可再生的)．That means there is only a certain amount of that resource in the world．One example of this is oil．When we use up all the oil in the world, there will be no more．

　　There is another reason for throwing less away．All of our trash has to be put somewhere．Often, it is put into garbage dumps(垃圾场)．Much of that trash will be there for hundreds of years．The dumps will be filled up with all this trash．

　　There are three ways to cut down on trash．

　　One way is to recycle．When you recycle something, it means it is made into another shape and used again．Old newspaper may become paper bags．A glass jar can be melted(熔化)and made into a bottle．

　　Another way to cut down on trash is to reuse things．You can wash and use again a bottle that can hold mustard(芥末酱)or something else．

　　The third way to cut down on trash is to reduce the amount of trash you make, stop buying thing that you don't need in the first place．That reduce the amount of the earth's resources that you use．

1．How many reasons do we need to throw less away?

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2．What does it mean when you reuse something?

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3．How many ways of cutting down on trash in the passage?

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4．What is the way, if a broken plastic box is changed into a plastic ruler?

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5．What does the word “reduce” in the passage mean?

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阅读理解

　　You know you have to read "between the lines" to get the most out of anything．I want to tell you something important during your reading．

　　You shouldn’t mark a book which isn’t yours．　　1　　 If you think it useful to mark books, you will have to buy them．

　　There are two ways in which one can own a book．The first is to get the right by paying for it, just as you pay for clothes and furniture．But full ownership comes only when you have made it a part of yourself．　　2　　

　　There are three kinds of book owners．The first has all the best sellers－unread and untouched．The second has a great many books．　　3　　 The third has a few dog-eared(翻折的)books, which are marked from front to back．

　　Why is marking a book necessary? First, it keeps you awake．In the second place, reading is thinking．　　4　　 The marked book is usually the thought-through book．Finally, writing helps you remember the thoughts you had, or the thoughts the writer expressed．

　　If reading is to learn anything more than passing time, it must be active．The book you read for pleasure can be read in a state of relaxation, and nothing is lost．But for a great book, rich in ideas, reading must be active．　　5　　 You should come up with an understanding of what you have read．

根据材料内容，将A-E五个句子填入文中空缺处，使短文内容完整、正确，并将其标号填写在下面题号后的横线上。

A．You can’t let your eyes move across the lines．

B．But most of them are as clean as the day they were bought．

C．And thinking can express itself in words, spoken or written．

D．People who lend you books expect you to keep them clean．

E．The best way to make yourself a part of it is by writing in it．