Did you notice the number on the book in a library? That number is part of the system used by libraries to organize their collections of books. And it’s used in many countries. The number on each book tells you exactly what kind of book it is. This system is also useful for knowing where to go in the library to find a book.

In this system, there are ten large groups of books. Each of these groups has its own number, such as 100, 200, etc. So, for example, any books about language will have a number 400. On the other hand, any books about history will have a number 900. So, a number in the hundreds place tells you what general group a book is in. If you find a book that has a number in the 500s, you know it is a book about science.

However, science is a big group, so the tens place is used to make a more detailed set of science books. For example, math books are included in the group of science books. Math books all have numbers between 510 and 519. Books about the history of Africa have numbers between 960 and 969.

The system uses the ones place to give a more exact limit for the subject of a book. A book on the history of South Africa will have the number 968.

As you can see, it is a simple system to use as long as you understand what the numbers mean. With this system, the library can keep its books well organized, and people can easily find the book that they want.

1.The reading is about       .

   A. libraries

B. working in a library

   C. how numbers are organized

D. how books are organized in libraries

2.The number system is NOT used to       .

   A. find where a book is 

B. tell you the title of a book

   C. tell you what kind of book a book is        

D. organize the collections of books in libraries

3.According to the reading, which sentence is TRUE?

   A. The number on a book can’t be bigger than 900.

   B. There are ten big groups for books in this system.

   C. History books can have any number between 500 and 900.

   D. This system uses both numbers and letters for some books.

4.A book about math can be found in the same group of books as       .

   A. reference books   B. school books     C. science books   D. art books

5.Which two numbers would indicate a book about language and a book about science?

   A. 439 and 493       B. 439 and 568      C. 530 and 560     D. 563 and 436

Dear Connie，
　　Thanks for your last letter. Everything is OK here now. I am _1__ to know that everything is going well with you. 2__also for the photos. Linda looks healthier and 3_ than before.
　　It is very hot here now, but it sometimes 4_. We love the rains very much. We are _5_ our stay here. I am now studying in a 6__ school. There are more __7_ and students in this school than in my school in England. My teachers and classmates are all very _8_ to me.
　　Time goes so quickly. I am having new experience all the time. It is difficult to _9 Chinese. But I am making progress _10_ the help of my teachers and classmates.
　　The summer holiday is __11_. Here in Jinan the summer holiday usually __12__ about two months. So I'II be free for over sixty days. I hope you and Linda could __13__ to Jinan for a __14_. Then I can show you _15__ the famous “Spring City” in China.
　　Love to you and Linda.

Yours,
Mike

1 A. glad　　     B. angry　　     C. surprised　　       D. sad

2 A. Thanks　　   B. Ask　　      C. Hope　　          D. Wish

3A. slower　　   B. taller　　     C. shorter　　         D. smaller

4 A. floods　　    B. winds　　    C. snows　　          D. rains

5 A. fond　　     B. disliking　    C. enjoying　　        D. hating

6 A. shorter　　   B. taller　　     C. smaller　　         D. bigger

7 A. libraries　    B. teachers　　   C. buildings　         D. classrooms

8 A. rough　　    B. friendly　　   C. unfriendly　        D. rude

9 A. know　　    B. find　　       C. learn　　           D. see

10 A. as　　       B. under　　     C. by　　             D. with

11 A. finished　    B. coming　      C. going　            D. over

12 A. takes　　    B. spends　       C. lasts　　           D. costs

13 A. run　　      B. walk　        C. go　　            D. come

14A. sight　       B. visit　        C. job　　            D. work

15A. around　     B. to 　         C. for　　            D. visit

Dear Connie，
　　Thanks for your last letter. Everything is OK here now. I am _1__ to know that everything is going well with you. 2__also for the photos. Linda looks healthier and 3_ than before.
　　It is very hot here now, but it sometimes 4_. We love the rains very much. We are _5_ our stay here. I am now studying in a 6__ school. There are more __7_ and students in this school than in my school in England. My teachers and classmates are all very _8_ to me.
　　Time goes so quickly. I am having new experience all the time. It is difficult to _9 Chinese. But I am making progress _10_ the help of my teachers and classmates.
　　The summer holiday is __11_. Here in Jinan the summer holiday usually __12__ about two months. So I'II be free for over sixty days. I hope you and Linda could __13__ to Jinan for a __14_. Then I can show you _15__ the famous “Spring City” in China.
　　Love to you and Linda.

Yours,
Mike

1 A. glad　　     B. angry　　     C. surprised　　       D. sad

2 A. Thanks　　   B. Ask　　      C. Hope　　          D. Wish

3A. slower　　   B. taller　　     C. shorter　　         D. smaller

4 A. floods　　    B. winds　　    C. snows　　          D. rains

5 A. fond　　     B. disliking　    C. enjoying　　        D. hating

6 A. shorter　　   B. taller　　     C. smaller　　         D. bigger

7 A. libraries　    B. teachers　　   C. buildings　         D. classrooms

8 A. rough　　    B. friendly　　   C. unfriendly　        D. rude

9 A. know　　    B. find　　       C. learn　　           D. see

10 A. as　　       B. under　　     C. by　　             D. with

11 A. finished　    B. coming　      C. going　            D. over

12 A. takes　　    B. spends　       C. lasts　　           D. costs

13 A. run　　      B. walk　        C. go　　            D. come

14A. sight　       B. visit　        C. job　　            D. work

15A. around　     B. to 　         C. for　　            D. visit

Dear Connie，
　　Thanks for your last letter. Everything is OK here now. I am __1__ to know that everything is going well with you. __2__also for the photos. Linda looks healthier and __3_ than before.
　　It is very hot here now, but it sometimes _4__. We love the rains very much. We are _5__ our stay here. I am now studying in a __6__ school. There are more _7_ and students in this school than in my school in England. My teachers and classmates are all very _8_ to me.
　　Time goes so quickly. I am having new experience all the time. It is difficult to __9_ Chinese. But I am making progress __10__ the help of my teachers and classmates.
　　The summer holiday is _11__. Here in Jinan the summer holiday usually _12_ about two months. So I'II be free for over sixty days. I hope you and Linda could _13__ to Jinan for a _14_. Then I can show you 15_ the famous “Spring City” in China.
　　Love to you and Linda.

Yours,
Mike

（1）A. glad　　     B. angry　　     C. surprised　　       D. sad

（2）A. Thanks　　   B. Ask　　      C. Hope　　          D. Wish

（3）A. slower　　   B. taller　　     C. shorter　　         D. smaller

（4）A. floods　　    B. winds　　    C. snows　　          D. rains

（5） A. fond　　     B. disliking　    C. enjoying　　        D. hating

（6） A. shorter　　   B. taller　　     C. smaller　　         D. bigger

（7） A. libraries　    B. teachers　　   C. buildings　         D. classrooms

（8） A. rough　　    B. friendly　　   C. unfriendly　        D. rude

（9） A. know　　    B. find　　       C. learn　　           D. see

（10）A. as　　       B. under　　     C. by　　             D. with

（11）. A. finished　    B. coming　      C. going　            D. over

（12）A. takes　　    B. spends　       C. lasts　　           D. costs

（13）A. run　　      B. walk　        C. go　　            D. come

（14） A. sight　       B. visit　        C. job　　            D. work

（15） A. around　     B. to 　         C. for　　            D. visit

Dear Connie，
　　Thanks for your last letter. Everything is OK here now. I am __1__ to know that everything is going well with you. __2__also for the photos. Linda looks healthier and __3_ than before.
　　It is very hot here now, but it sometimes _4__. We love the rains very much. We are _5__ our stay here. I am now studying in a __6__ school. There are more _7_ and students in this school than in my school in England. My teachers and classmates are all very _8_ to me.
　　Time goes so quickly. I am having new experience all the time. It is difficult to __9_ Chinese. But I am making progress __10__ the help of my teachers and classmates.
　　The summer holiday is _11__. Here in Jinan the summer holiday usually _12_ about two months. So I'II be free for over sixty days. I hope you and Linda could _13__ to Jinan for a _14_. Then I can show you 15_ the famous “Spring City” in China.
　　Love to you and Linda.

Yours,
Mike

（1）A. glad　　     B. angry　　     C. surprised　　       D. sad

（2）A. Thanks　　   B. Ask　　      C. Hope　　          D. Wish

（3）A. slower　　   B. taller　　     C. shorter　　         D. smaller

（4）A. floods　　    B. winds　　    C. snows　　          D. rains

（5） A. fond　　     B. disliking　    C. enjoying　　        D. hating

（6） A. shorter　　   B. taller　　     C. smaller　　         D. bigger

（7） A. libraries　    B. teachers　　   C. buildings　         D. classrooms

（8） A. rough　　    B. friendly　　   C. unfriendly　        D. rude

（9） A. know　　    B. find　　       C. learn　　           D. see

（10）A. as　　       B. under　　     C. by　　             D. with

（11）. A. finished　    B. coming　      C. going　            D. over

（12）A. takes　　    B. spends　       C. lasts　　           D. costs

（13）A. run　　      B. walk　        C. go　　            D. come

（14） A. sight　       B. visit　        C. job　　            D. work

（15） A. around　     B. to 　         C. for　　            D. visit