183.One pound is( )to 0.454 kilograms.

3. Passage 19 Throughout her working life， a ship — like a motorcar — must be serviced regularly if she is to remain efficient. After a period at sea she must be overall checked and any necessary repairs must be made. There are also instances when a ship must be converted from being one kind of carrier to another. Most of today‘s oil， for example， is carried by huge super-tankers. The smaller tankers， many of which are still in good condition， can be converted into bulk carriers(散货船) for the transport of sugar， coal or ore. Conversion or repair work is carried out in a dry dock， a huge hole cut into the ground and lined with concrete. At one end are large gates separating the dock from the river or sea. When these gates are opened， water pours into the dock and fills it. A ship can then enter the dock， where it is carefully fastened in an upright position. When the ship is positioned inside the dock， the gates are closed and the water is pumped out. The vessel slowly settles on to wooden blocks. Wooden supporters are put in position between the ship and the sides of the dock to prevent her from rolling over. Great care is taken to make sure that the ship rests evenly on the keel(龙骨)blocks to prevent damage being done. As soon as the ship is firmly positioned， repair or conversion work can begin on her body or superstructure. We can infer that a dry dock( ).

A. 　is built by the water

B. 　is built far from the water

C. 　is built under the water

D. 　is floating on the water

121.( )the fact that the area had been hit by the severest drought in twenty years， a fairly good harvest was gathered in.

A. 　In spite

B. 　 Despite

C. 　 In spite that

D. 　 Despite of

166.Pigeon is often considered a【n】( )of peace.

A. 　example

B. 　 sign

C. 　 mark

D. 　 symbol

113.Not until she arrived at the meeting room( )she had forgotten to bring the document.

A. 　she realized

B. 　 did she realize

C. 　 she did realize

D. 　 does she realize

168.We volunteered to collect money to help the( )of the tsunami.

A. 　victims

B. 　 folks

C. 　 fellows

D. 　 villagers

7.I‘d love a new car， but I just can‘t( )it.

A. 　offer

B. 　 afford

C. 　 spend

D. 　 cost

2. 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. What subjects did Benjamin teach himself?

A. 　Science and mathematics.

B. 　Science， mathematics and astronomy.

C. 　Astronomy only.

D. 　Six Almanac.

14.In school days I( )all the way to the school， but would sometimes take the bus when it rained.

A. 　used to walk

B. 　 used to walking

C. 　 was used to walk

D. 　 would use to walk

5. 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. This passage is mainly about―( )‖.

A. 　How to use Computers

B. 　 Surfing on the Internet

C. 　 Information on the Internet

D. 　 Internet Safety Rules

8、Translation 8 Air pollution can spread from city to city. It even spreads from one country to another. So air pollution is really a global problem. Air pollution may kill people， especially babies， older people， and those who have diseases with their breath. Air pollution increases the risks of certain lung diseases. There are other possible health dangers from air pollution that we don‘t know much about. For example， scientists are trying to find out whether chemicals that reach us from the air may cause changes in our cells. These changes might cause babies to be born with serious birth defects. Scientists are trying to learn how all the chemicals we are apt to take into our body work.