Sydney is a young city. Its history goes back just over 200 years. But in Australia, it is the oldest city. It is also the country' s largest city. Sydney is the capital of New South Wales and the most popular city of Australia.

The climate of Sydney is very good. It' s not too cold during the winter and not too hot during the summer. The sky is blue, the air is fresh, and birds sing in the garden. People who live in Sydney seem to have an easy life style. They will tell you, "Don't worry. "

Many people think that Sydney is one of the most attractive cities in the world. It has many tall and modern buildings. Among them, Center point Tower is the tallest. Standing on the 305-metre(80 storeys)tower, you will have a great view of the city.

Sydney is famous for its deep harbor(港口). The harbor has many bays(湾) and beautiful surf beaches.? Among them, Bondi beach is the most popular.? Sydney Harbor is not only beautiful, it also serves as a large port. Ships carry wool, wheat and meat from Sydney to other countries.

People living in Sydney like to call themselves Sydneysiders. They are mostly friendly and easygoing. When they are not working, they love to have a good time at the beach, swimming and sailing.

1.Sydney is the???????? city in Australia.

A. youngest??????? B. largest????? C. coldest?????? D. hottest

2. It seems that people in Sydney have easy life because????????? .

A. the climate is very good

B. the sea is very beautiful

C. they are very rich

D. they always tell you, "Don't worry. "

3.What is true about the Center point?

A. It' s the tallest building in the world.

B. It's an old building.

C. You can see most of the city on it.

D. It' s 80-metre tall.

4. Australia is rich in???????? .

A. wool????????? B. wheat???????? C. meat????? D. all the above

5.What do you think of people in Sydney?

A. cool????????? B. busy?????????? C. shy?????? D. warm-hearted

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

Always forgetting your long passwords(密码)? Worried about being hacked(被攻击)?All these worries will soon become history. Scientists have found that upper-casing(大写)your password can help you reduce the chance being hacked.
Usually passwords are six letters or more.However,50 percent of people choose a common word or simple key combination for their password. The most used passwords are 123456, abcdef and abc123. In fact, if your passwords are in lower-case(小写),it will be easily hacked by a hacker. According to a study, it only takes a hacker ten minutes to hack a six-letter password which is in lower-case, but if you make the letter in upper-case, it can take up to ten hours. So if you want to make your account much safer, you should make your password upper-case. Of course, you can also add numbers or symbols to your password. Most of the time a hacker’s computer has to work for 18 days to break a password, but if you choose a nine-letter password that includes numbers and symbols, it can take a hacher’s  computer 44,530 years to break it.
【小题1】Scientists have found that   your password is much safer for  
your account.

Always forgetting your long passwords(密码)? Worried about being hacked(被攻击)?All these worries will soon become history. Scientists have found that upper-casing(大写)your password can help you reduce the chance being hacked.

Usually passwords are six letters or more.However,50 percent of people choose a common word or simple key combination for their password. The most used passwords are 123456, abcdef and abc123. In fact, if your passwords are in lower-case(小写),it will be easily hacked by a hacker. According to a study, it only takes a hacker ten minutes to hack a six-letter password which is in lower-case, but if you make the letter in upper-case, it can take up to ten hours. So if you want to make your account much safer, you should make your password upper-case. Of course, you can also add numbers or symbols to your password. Most of the time a hacker’s computer has to work for 18 days to break a password, but if you choose a nine-letter password that includes numbers and symbols, it can take a hacher’s  computer 44,530 years to break it.

1.Scientists have found that   your password is much safer for  

your account.

2.According to the passage,______is not one of the most used

passwords.

3.It takes a hacker___to hack a six-letter password which is in

lower—case.

4.The Chinese meaning of the underlined word is       

A.数字     B.符号      C.色彩       调料

5.What is the main idea of the passage?