Not until the car looked almost new _______ repairing and cleaning it.

  A. he stopped           B. stopped he      C. did he stop    D. he did stop

 --- Do you know Nancy’s address?

--- ______. In fact, I don’t know any Nancy, either.

  A. I’d rather not      B. I hope so         C. I think so        D. I’m afraid not

Knowing how long the test would last, the students who finished ______ back and waited until the end of the exam.  

A. settle    B. settled     C. settling    D. to settle

Her new book is about a murder mystery ______ on actual murders that took place in Florida several years ago.

A. having been based       B. to be based      C. based      D. having based

 Ms. Smith is a talented and experienced engineer, so she was ____ head of the department.

A approved     B. pushed       C. appointed      D. agreed

学生中用MP3听音乐已成为很常见的事情了。你是大连二十三中一名学生，名叫李华。请根据下表关于高中生在校期间听音乐所作的调查写一篇短文，给21世纪报社投稿。

Dear editor,

____________________________________________________________________________

About 1 in 15 households drink bottled water today, spending about $ 4 billion a year on it. Although the reasons for the trend are many, bottled water's health benefits fall near the top of the list. Surveys have found that about 25 percent of bottled water drinkers choose the beverage for health and safety reasons; another quarter believe it is pure and free of contaminants（杂质）.

Regardless of its pristine image, bottled water is not necessarily any purer or more healthful than what flows right out of the tap.  Consider that the Food and Drug Administration （FDA）, the bottled water industry watchdog, does not require that bottled water meet higher standards for quality, such as the maximum level of contaminants, than public water supplies regulated by the EPA. For the most part, the FDA simply follows EPA's regulatory lead. Granted, bottled water is often filtered（过滤）to remove chemicals such as chlorine that may impart a certain taste. But that doesn't make it any safer. In fact, about 25 to 40 percent of bottled water comes from the same municipal water supplies as tap water. Furthermore, some bottled waters do not contain any or enough of the fluoride（氟化物）needed to fight cavities. The only way to determine whether a certain water contains the mineral is to check with the company that bottles it.

This is not to say that bottled water is necessarily any better or worse, from a health standpoint, than tap water. It's certainly preferable to tap water for those who like its taste. The problem is that many consumers pay 300 to 1,200 times more per gallon for bottled water than for tap water because they think bottled water is the more healthful of the two.  Bottlers add to the confusion by sprinkling terms such as "pure", "crystal pure" and "premium" on labels illustrated with pictures of glaciers, mountain streams, and waterfalls, even when the water inside comes from a public reservoir. However, the FDA has set forth regulations requiring clear labeling of bottled waters. The mini glossary（词汇）of bottled waters explains what some of the terms used on bottles really mean.

53.  What conclusion can we draw from the passage?

A. Most bottled water drinkers buy it for the taste.

B. Labels on bottled water are used to mislead consumers.

C. The FDA sets high standards for bottled water.

D. Only wealthy people can afford bottled water.

54.  According to the passage, removing chlorine from water______

A. does not make the water safer               B. is required by the FDA

C. makes the water less expensive              D. is necessary for good health

55.  What’s the main idea of this passage?

A. Bottled water may be preferable to tap water in taste.

B. Bottled water is always safer to drink than tap water.

C. Consumers should consider carefully the reason for buying bottled water.

D. The Food and Drug Administration is responsible for the bottled water.

Mark Twain left school when he was twelve. He had little school education. In spite of this, he became the most famous writer of his time. He made millions of dollars by writing. His real name was Samuel Langhorne Clemens, but he is better known all over the world as Mark Twain, his penname.

Mark Twain was born in 1835 and he was not a healthy baby. In fact, he was not expected to live through the first winter. But with his mother's tender care, he managed to survive. As a boy, he caused much trouble for his parents. He used to play jokes on all of his friends and neighbors. He didn't like to go to school, and he constantly ran away from home. He always went in the direction of the nearby Mississippi. He was nearly drowned nine times.

After his father's death in 1847, Mark twain began to work for a printer, who only provided him with food and clothing. Then, he worked as a printer, a river-boat pilot and later joined the army. But shortly after that he became a miner. During this period, he started to write short stories. Afterwards he became a full-time writer.

In 1870, Mark Twain got married. In the years that followed he wrote many books including Tom Sawyer in 1876, and Huckleberry Finn in 1884, which made him famous, and brought him a great fortune.

Unfortunately, Mark Twain got into debts in bad investments （投资）and he had to write large numbers of stories to pay these debts. In 1904, his wife died, and then three of their children passed away.

At the age of 70, his hair was completely white. He bought many white suits and neckties. He wore nothing but white from head to foot until his death on April 21, 1910.

45．Mark Twain left school at 12 to________.

A．work as a printer    B．write stories    C．join the army    D．make a living

46．Which of the following about Mark Twain is not true?

A．He was not a healthy boy.                  B．He caused much trouble for his parents.

C．He gained lots of money by writing     D．He had a happy childhood but a sad later life.

47．Arrange the following facts about Mark Twain’s life in order of time.

a．working as a printer       b．working as a river-boat pilot

c．working as a miner       d．joining the army

e．working as a full-time writer

A．a, b, c, d, e     B．a, b, d, c, e     C．a, c, b, d, e    D．c, a, b, d, e

48．Which of the following would be the best title________.

A．Mark Twain’s works       B．Mark Twain’s life

C．Mark Twain’s Fame        D．Mark Twain’s Success

When he woke up he found himself ___in bed in the hospital and ____a group of doctors.

A. to lie, to be surrounded            B. lying, being surrounded

C. lying, surrounded                    D. to lie, surrounded

The notice says that only when your identity has been checked _____.

A. will you allow in          B. will you be allowed in

C. you will allow in          D. you will be allowed in