第一节 单项选择（共15小题；每小题1分，满分15分）

1. — Could you take my place and go to meet Professor Smith from Britain?

— _______________

— He is a tall man wearing short hair.

A. Why me this time? B. Are you familiar with him?

C. How can I recognize him? D. What would you like to tell me?

2. It was clear that Lucy was unhappy about her work. ____, it comes as no surprise that she has decided to leave the company.

A. On the other hand B. As a result C. In addition D. After all

3. — What took you so long?

— I got lost. I have no ____ of direction.

A. sense B. ability C. knowledge D. feeling

4. The United Nation called on these countries to solve this problem in a(n) ____ way, adding that any negative measure would cause bad effects.

A. immediate B. hostly C. positive D. enthusiastic

5. _____ by Ren Changxia’s deeds, many young girls want to be a policewoman in the future.

A. To be inspired B. Having inspired C. Being inspired D. Inspired

6. As is well known, many deadly accidents _______ carelessness and irresponsibility.

A. lead to B. result from C. contribute to D. result in

7. Only after a baby seal is pushed into the sea by its mother _____ to swim.

A. how will it learn B. will it learn how C. it will learn how D. and it learns how

8. — What made your skin look so terrible?

— _______ to the sunlight for a long time.

A. Because it was exposed B. After being exposed C. Being exposed D. Exposed

9. ____ new cure for this disease that medical experts have recently developed proves to be ______ most effective, although it can not completely kill all the viruses.

A. A; a B. The; / C. /; the D. A; the

10. Zhanglin was lost in computer games during his last year in high school, otherwise he _____ a student at Beijing University.

A. would have been B. can be C. has been D. had been

11. The primary purpose is to _____ those achievements in biological research _____ the public.

A. make; known by B. make; known to C. make; know to D. make; knowing by

12. He had to take the medicine three times a day, so as to be _____ the pain in the leg.

A. far from B. away from C. apart from D. free from

13. Marie Curie and her husband Pierre Curie discovered radium and polonium, ____ they won the Noble Prize in Physics.

A. as B. where C. for which D. on which

14. — The water was left running all night long.

— Yes. It seemed that John ___________. He was the last one to leave the lab.

A. was to be blamed B. was to blame C. had been blamed D. should be blamed

15. ______ you come across some new words, don’t refer to your dictionary at once but guess their meanings according to the context.

A. Every time B. The first time C. Now that D. If only

第二节 阅读理解（共15小题；每小题２分，满分3０分）

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Linus Pauling, the only person who has won two undivided Nobel Prizes, was born in Portland, Oregon. He attended Washington High School but because of an unimportant detail he did not receive his diploma until 1962, long after he had received his Bachelor’s degree in chemical engineering from Oregon State College in 1922. He had chosen to study this major because he could get a good job with it.

He won the Nobel Prize for Chemistry in 1954 “for his research into the nature of the chemical bond and its application to the explanation of the structure of complex substances”. His interest in the “behavior” of molecules (分子) led him from physical chemistry to biological chemistry, especially of the human body. He began with proteins and their main parts, the amino acids (氨基酸), which are called the “building blocks of life”. In 1950, he constructed the first satisfactory model of a protein molecule, a discovery very important to the understanding of the living cell.

During World War II, Pauling was a member of the Research Board for National Security, for which he was awarded the Presidential Medal of Merit in 1948. However, the use of the atomic bomb near the end of the war turned Pauling in a new direction. Having long worked on the structure of molecules, he took an immediate interest in the deadly effects of nuclear fallout on human molecular structures.

From then on, Pauling protested the production of the hydrogen bomb and supported the prevention of the spread of nuclear weapons. Through his efforts, Ｔｈｅ Ｎｕｃｌｅａｒ－Ｔｅｓｔ－Ｂａｎ Ｔｒｅａｔｙ, declaring all nuclear tests to be illegal except underground ones, came into effect on October 10, 1963, the same day Linus Pauling was awarded the Nobel Prize for Peace.

16. From the first paragraph, we learn that Linus Pauling ______________.

A. didn’t study hard while in Washington High School

B. is the only scientist who has won two Nobel Prizes

C. was once badly treated in Washington High School

D. chose to study chemical engineering to earn his living

17. Which of the following things did Pauling pay much attention to at first?

A. The “behavior” of molecules B. Physical chemistry.

C. Biological chemistry. D. The human body.

18. During World War II, Linus Pauling ___________.

A. had to stop his research because of the war

B. made great contributions to the safety of the country

C. joined the army to fight for the safety of the country

D. took part in researching nuclear bombs

19. Which of the following is legal according to Ｔｈｅ Ｎｕｃｌｅａｒ－Ｔｅｓｔ－Ｂａｎ Ｔｒｅａｔｙ?

A. The use of nuclear weapons. B. Testing hydrogen bomb on the ground.

C. Testing nuclear weapons underground. D. The production of hydrogen bombs.

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There is no best way to learn a language, just different ways that suit different people. Some people prefer to “pick up” the language by reading books or magazines, watching films, visiting the country where the target language is spoken, etc. They focus on the meanings of words and don’t worry too much about the language forms used. This method often suits children if they find themselves in a foreign country or with foreign friends. However, this approach doesn’t suit everyone if your aim is to become good at writing.

Probably the most common way to learn a language is in a classroom with a teacher. The teacher can explain difficult words, give guidance, provide extra motivation and feedback on progress. Unfortunately, some people do not have very pleasant experiences of learning a language in the classroom. Language learning can be great fun. But your writing level will be increased most efficiently this way. Besides learning in a classroom, you can use a personal tutor and arrange a very flexible system of tuition. That means if you are busy at a particular time, you can still arrange to have your language tuition at a time that suits you.

With recent improvements in modern technology, it is now possible to purchase a wide range of multi-media materials for learning a language. You can teach yourself using cassettes, videos, CD- ROMs, books, and any combination of these. This approach is best suited to students who are self-disciplined and well-organized. It also tends to assist with the development of reading and listening skills. But be sure to pick out materials of high quality. If you want to become fluent at speaking and writing a language, you’ll also benefit from cooperating with other users.

20. The method mentioned in the first paragraph can be considered _______.

A. passive learning B. natural and active learning

C. the most effective learning method D. a structured learning method

21. The underlined word “flexible” in the second paragraph means “________”.

A. strict B. pleasant C. safe D. free

22. From the passage, we can NOT learn that ________.

A. people need to care about grammar when speaking a language

B. classroom studying can be boring sometimes

C. not all learning materials can help improve our language level

D. students lacking self-control may not benefit much from self-study

23. What might be talked about in the next passage?

A. How to find a personal tutor. B. How to deal with the difficulties in study.

C. How to cooperate with other language learners. D. How to find the best studying method.

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A new effort is being launched to better educate parents about the earliest signs of autism (孤独症). Doctors at Maryland’s Kennedy Krieger Institute, one of the country’s leading autism centers, say they can now identify symptoms in children at a younger age than before.

Children with autism withdraw into their own private worlds. Most children are not diagnosed until they are 3 to 5 years old, but the signs can appear as early as 6 months. “Most people use the rule of thumb that if a child is showing developmental delays before the age of 3, they’ll catch up, but children with autism usually can’t,” said researcher Rebecca Landa.

Researchers at the institute are showing in a video just what symptoms to look for, even in an infant. In about 30 percent of autism cases, researchers are now documenting what they call “regressive（倒退的）autism”. One boy documented by the Kennedy Krieger Institute was engaged and smiling at his mother at 6 months. When he reached one year, he appeared a little shy, but again, there was no reason for concern. But at the age of 2, he was totally attached to his toys and the signs in him have become more obvious. “Although causes of autism remain unknown, now you can really see autism in its full form,” Landa said.

Chloe was diagnosed with autism at 2, when she could not interact with the children around her, and she hated to be touched. But after four months of intensive treatment, her behavior improved significantly.

“She is talking now,” Landa said. “She looks to the teacher and shares enjoyment. She looks to others to know what she should be doing.” C