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.
【小题1】The reading is about       .

Quick Reference Index

Items                                                        Pages          Items                                             Pages

ACTORS AND ACTRESSES                      364-382     MAPS(COLOR)                             511-522

MUSEUMS                                               448-475     MEDICAL DEVELOPMENTS         492

ANIMALS                                                 490-494     HOLIDAYS                                     841-873

FAMOUS ART                                          480-482     PLANTS, RIVERS                           108-109 114-115

HIGHWAYS                                               121-131     NATIONAL PARKS                        747-749

BOOKS, BEST SELLERS                            476             COUNTRIES                                   523-624

DISCOVERIES AND INVENTIONS            320-346     PASSPORTS                                   142-144

ENVIRONMENT                                       84-120       POPULATION                                625-640

EDUCATION                                             252-318     POST INFORMATION                   1033-1039

FLAGS OF THE WORLD(COLORS)         505-510     SPORTS                                         884-978

根据表格信息，选择最佳答案。

1.Where can you find the information about things that are best sold?

A. MAPS(COLOR) on Pages511-522.

B. BOOKS, BEST SELLERS on Page 476.

C. NATIONAL PARKS on Pages 747-749.

2.If you are interested in Chinese actor Bruce Lee, you may search the item        .

A. ENVIRONMENT

B. ACTORS AND ACTRESSES

C. POST INFORMATION

3.If you want to know more about Thomas Edison, where should you begin your research?

A. DISCOVERIES AND INVENTIONS

B. FAMOUS ART

C. EDUCATION

4. One who likes sports can find information on how to surf on Pages ______.

A. 448-475                                B. 517-528                       C. 884-978

5.You can find “preventing pollution” on Pages ______.

A. 84-120                                 B. 625-640                      C. 142-144

Quick Reference Index（索引）

(   ) 1. Where can you find the information on elephants?

A. On Pages 454-469.               B. On Pages 108-109.

C. On Pages 747-749.               D. On Pages 493-496.

(   ) 2. One who likes surfing can find the information about how to surf on Pages ______.

A. 80-101        B. 476      C. 884-978        D. 517- 528

(   ) 3. If you are interested in Thomas Edison, you may search ______.

A. DISCOVERIES AND INVENTIONS        B. SPORTS

C. PLANTS                                 D.MAPS

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

The iPhone is a line of smartphones designed and marketed by Apple Inc. It runs Apple's iOS mobile operating system, known as the "iPhone OS" until mid-2010, shortly after the release of the iPad. The first generation iPhone was released on June 29, 2007, the most recent iPhone, the seventh-generation iPhone 5S, on September 20, 2013. The user interface is built around the device's multi-touch screen, including a virtual keyboard. The iPhone has Wi-Fi and cellular connectivity (2G, 3G, 4G, and LTE).

An iPhone can shoot video (though this was not a standard feature until the iPhone 3GS), take photos, play music, send and receive emails, look through the web, send texts, and receive visual voicemail. Other functions—games, reference, GPS navigation, social networking, etc.— can be enabled by downloading apps; as of 2012[update], the App Store offered more than 775,000 apps by Apple and third parties.

There are six generations of iPhone models, each accompanied by one of the six major releases of iOS. The original 1st generation iPhone was a GSM phone, and established design precedents, such as a button placement that has persisted through all models and a screen size maintained until the launch of the iPhone 5 in 2012. The iPhone 3G added 3G cellular network capabilities and A-GPS location. The iPhone 3GS added a faster processor and a higher-resolution camera that could record video at 480p. The iPhone 4 featured a higher-resolution 960 × 640 "retina display", a VGA front-facing camera for video calling and other apps, and a 5-megapixel rear-facing camera with 720p video capture. The iPhone 4S upgrades to an 8-megapixel camera with 1080p video recording, a dual-core processor, and a natural language voice control system called Siri. IPhone 5 features the new A6 processor, increases the size of the Retina display to 4 inches, and replaces the 30-pin connector with an all-digital Lightning connector.

The resounding sales of the iPhone have been credited with reshaping the smart phone industry and helping make Apple one of the world's most valuable publicly trading companies in 2011–12. However, there has been criticism of the company's outsourcing and move of jobs from the US to China. Apple and its manufacturing contractor Foxconn have received criticism due to poor working conditions at the assembly plant in China.

1.An iphone is from __________.

A. the USA??? ???????????????????????????? B. South Korean

C. the UK?? ?????????????????????????????? D. Australia

2.What is the newest kind of iphone at present?

A. iphone 4??????? ?? B. iphone 4S ????????? C. iphone 5??? ??? D. iphone 5S

3.How many generations of iphone models are there now?

A. Five?? ?????????? B. Six???????????????? C. Seven?? ?????? D. Eight

4.What are the features of iphone 5?

A. The new A6 processor??? ??????????

B. increases the size of the Retina display to 4 inches

C. replaces the 30-pin connector with an all-digital Lightning connector?? ????????? ?????

D. A, B and C