5. Passage 4 Do you know who Benjamin Banneker was and what he did? Benjamin Banneker was a self-educated scientist at a time when most African Americans were slaves. Born a free black man in the British Colony of Maryland in 1731， he received some formal education， but he mostly borrowed books and taught himself science and mathematics. At 22， he borrowed a pocket watch， and without any training， figured out how to carve a working wooden clock that chimed each hour. Because of this clock， he became well known and people would visit him just to see his creation. Banneker ran his family farm from many years， but when he was in his late 50s， a neighbor‘s son lent him a telescope. He became interested in astronomy， the study of the planets and stars， and again taught himself a new science. He made calculations of tides， sunrises and sunsets， and even predicted an eclipse. For several years he published an almanac of these calculations. Today， he is best known for publishing six almanacs， called ―Benjamin Banneker‘s Almanac‖ between 1792 and 1797. In the 1790s， Banneker also helped survey and lay out the land for Washington， D. C.， which became the nation‘s capital. For a look at Banneker‘s amazing life， visit the Benjamin Banneker Historical Park & Museum in Ellicott City， Maryland. Which of Mr. Banneker‘s works is best known?

13.He hardly ever leaves the house after ten at night，( )?

A. 　doesn‘t he

B. 　 does he

C. 　 so does he

D. 　 nor does he

3. Passage 11 Many children use the Internet to get useful knowledge and information， and to relax in their free time. But some of them are not using in a good way. Here are some rules to make sure you are safe and have fun on the Internet. Make rules for Internet use with your parents. For example， when you can go online， for how long and what activities you can go online. Don‘t give your password to anyone else， and never leak out the following information---your real name， home address， age， school， phone number or other personal information. Check with your parents before giving out a credit card number. Never send a photo of yourself to someone in e-mail unless your parents say it‘s OK. Check with your parents before going into a chat room. Different chat rooms have different rules and attract different kinds of people. You and your parents must make sure it‘s a right place for you. Never agree to meet someone you met on the Internet without your parent‘s permission. Never meet anyone you met on line alone. Always remember that people online may not be who they say they are. Treat everyone online as strangers. If something you see or read online makes you uncomfortable， leave the site. Tell a parent or teacher right away. Treat other people as you‗d like to be treated. Never use bad language. Remember—not everything you read on the Internet is true. The underlined phrase ―leak out‖ in the third paragraph may mean ―( ).

A. 　give away

B. 　 leave out

C. 　 give out

D. 　 put away

9.After the war， Germany became one of Europe‘s most( )countries.

A. 　prosperous

B. 　 swift

C. 　 improved

D. 　 interested

3. Passage 7 Greek soldiers sent messages by turning their shields toward the sun. The flashes reflected light could be seen several miles away. The enemy did not know what the flashes meant， but other Greek soldiers could understand the message. Roman soldiers in some places built long rows of signal towers. When they had a message to send， the soldiers shouted it from tower to tower. If there were enough towers and soldiers with loud voices， important news could be sent quickly over distance. In Africa， people learn to send messages by beating on a series of large drums. Each drum was kept within hearing distance of the next one. The drum beats were sent out in a special way that all the drummers understood. Though the messages were simple， they could be sent at great speed for hundreds of miles. In the eighteenth century， a French engineer found a new way to send short messages. In this way， a person held a flag in each hand and the arms were moved to various positions representing different letters of the alphabet. It was like spelling out words with flags and arms. Over a long period of time， people sent messages by all these different ways. However， not until the telephone was invented in America in the nineteenth century could people send speeches sounds over a great distance in just a few seconds. The African way of communication sent messages( ).

A. 　with arms.

B. 　over a very short distance

C. 　by a musical instrument

D. 　at a rather slow speed

45.During our stay in Europe we visited many places of( )spots， including several castles.

A. 　historic

B. 　 history

C. 　 histrionic

D. 　 historical

36.The police chief ordered that parking( )in main streets during rush hour.

A. 　was prohibited

B. 　 to be prohibited

C. 　 prohibit

D. 　 be prohibited

132.Coffee is said to have( )effects.

A. 　promoting

B. 　 stimulating

C. 　 encouraging

D. 　 enhancing

30.The elephant is the largest land animal( ).

A. 　in practice

B. 　 in existence

C. 　 in turn

D. 　 in common

3. Passage 20 Clifford Stoll ran a computer system in Berkelely， California. As a system administrator， he kept a close eye on the records. One day， Stoll found something strange in the payment record. There was a 75 cents mistake. One of the thousands of users had used the system for 75 worth of time and not paid for it. It might sound like very little money to worry about. But that 75 cents was the first clue Stoll had to a much bigger problem — that a hacker(黑客)had broken into Stoll‘s computer system. Who was it? Stoll spent the next year trying to find out. During that time the hacker used the system in Berkelely as a starting point to break into military computer systems all over the United States. Stoll had to keep track of the hacker‘s activities on the computer without the hacker‘s knowing someone was watching him. Stoll even made up huge files of false information so the hacker would have lots to read. When the hacker spent long time reading， the telephone company was able to trace the lines. After a year， the hacker was traced back to his computer — in Germany. He was later caught by the German police. Stoll was concerned about a 75 cents mistake because( ).

A. 　every cent was important to the company

B. 　it might lead to a greater loss for the company

C. 　he was afraid the computer system might break down some day

D. 　he realized someone had broken into the computer system

3. Passage 14 Shortly after graduation， it is time for you to start the next phase of your life. You will begin your first “real job.” Generally speaking， most of what you have learned in school will not prepare you for this. There is a big difference between being a student and being an employee. Certainly， more will be expected of you. The best career-related advice I ever received came from my former boss on my first day of work. She told me to listen and observe before suggesting any changes. I took that advice and have used it in other situations， both in and out of the workplace. While innovation is a good thing， it is important to be mindful of dynamics of the workplace. If you are entering an environment where routines are already in place， a newcomer walking in and talking about “better ways” to do things， will often be met with negative reactions. Why? First， you know nothing about why they do things the way they do. Second， you haven＇t gained the trust of your co-workers. Finally， people， by nature， are threatened by changes. By listening and observing， you will gain a lot. You will learn about the environment of which you are now a part. You will find out more about the people you are working with. You may save yourself from making a major， public mistake—you are the new kid on the block while your co-workers have been around longer. You can learn from their collective experience. Which is NOT the reason why a new comer talking about ―better ways‖ will be met with negative reactions?

A. 　The new comer hasn‘t won enough trust.

B. 　The new comer doesn‘t understand much about his old co-workers‘ ways of doing things.

C. 　The new comer usually poses a threat to the old co-workers.

D. 　People， by nature， always regard changes as a kind of threat.