A chemical important of brain development may play a role in explaining why some people are genetically (由基因决定地) likely to suffer from anxiety and could lead to new treatments, U．S. researchers said.

They said highly anxious rats which were kept had very low levels of a brain chemical called fibroblast growth factor 2 or FGF2, compared with rats that were more relaxed. But when they improved the anxious rats' living conditions—giving them new toys to explore and a bigger cage to live in—levels of this brain chemical increased and they became less anxious.

“The levels of this brain chemical increased in response to the experiences that the rats were exposed to. It also decreased their anxiety.”Javier Perez of the University o f Michigan said in a telephone interview. “It made them behave the same way as the rats that were relaxed，”he said.

In a former study of people who were severely depressed before they died, the team found the gene that makes FGF2 was producing very low levels of the growth factor, which is known primarily for organizing the brain during development and repairing it after injury.

Perez thinks the brain chemical may be a marker for genetic vulnerability (脆弱性) to anxiety and depression. But it can also respond to changes in the environment in a positive way, possibly by preserving new brain cells.

While both the calm and anxious rats produced the same number of new brain cells, these cells were less likely to survive in the high－anxiety rats, the team found. Giving the rats better living conditions or injecting them with FGF2 helped improve cell survival.

“This discovery may pave the way for new, more specific treatments for anxiety that will not be based on sedation(药物镇静), but will instead fight the real cause of the disease，” Dr. Pier Vincenzo Piazza from France said in a statement.

6. We know from the passage that with the levels of FGF2 decreasing, the rats will ________.

A. die of anxiety soon          B. suffer from a headache

C. become more relaxed        D. become more anxious

7. What's the better way to increase the levels of FGF2?

A. Introducing more companions to the anxious rats.

B. Improving the living conditions of the anxious rats.

C. Injecting the anxious rats with some special medicine.

D. Giving the anxious rats more time to relax.

8. The underlined word “it” in Paragraph 4 refers to ________.

A. the team                 B. the gene

C. the growth factor          D. the brain

9. What's the main influence of the new discovery?

A. Doctors won't use any medicine to cure anxiety.

B. Doctors may treat anxiety more efficiently.

C. Doctors will find the real cause of anxiety.

D. Doctors may find new medicine for anxiety.

10. Which of the following would be the most suitable title for the passage?

A. Anxious rats and relaxed rats

B. Anxiety—a serious mental disease

C. Scientific research into the brain is important

D. Brain chemical may play key role in anxiety

One would have to be a fool to overlook the importance of using positive thinking for you rather than allowing negative thinking to work against you. In recent years, research in psychopharmacology (精神药理学) has proved what many people have known over the centuries: a positive attitude is good for you, good for your health, good for your wealth, good for everything. Researchers found that a positive attitude produces a specific chemical reaction which makes people feel better, while negative thinking results in a decline of hormone (荷尔蒙) and shuts down the immune (免疫的) system. This leads to illness and depression. Positive thoughts will make you feel better. Even if you must begin by literally forcing yourself to be positive (faking it, so to speak), it will become contagious (会传播的) and the positive thoughts will generate nice little w*w^w..c~o*mchemicals and good feelings which will reinforce the positive thoughts.

For example, if you force yourself to smile or laugh, even when you don't feel like smiling or laughing, if you keep at it for a few minutes, you will soon feel like it. Feelings can generate thoughts, but thoughts can also generate feelings. Control your thoughts and you can control your feelings. Positive thinking is important in all aspects of our lives. There is probably no single factor more important in determining your success in achieving your career objectives than your own attitude.

It's often been said that in the land of the blind, the one-eyed man is king. And in the office of militant (好战) negativism, the positive workers shine like gold. You cannot control external events, but you can learn to control your reaction to those events and thereby have a positive attitude and be happy. This vital key to success is totally within your control. Use it.

67. We can infer from the passage that         .

A. positive thinking can cure you of your diseases

B. positive thinking can easily be generated by anyone

C. a decline of hormone may cause you to be depressed

D. a specific chemical reaction is the cause of negative thinking

68. According to the passage, which of the following is true?

A. Feeling and thoughts can generate each other.

B. It's easier to control thoughts than to control feelings.

C. Your success depends wholly on your attitude.

D. Keeping smiling will surely make you successful.

69. Just like a one-eyed man in the land of the blind, you should              .

A. take positive attitude in the office of militant negativism

B. be king in your office

C. pay no attention to what is going on around you

D. control your feeling to what is happening to you

70. The best title to the passage is               .

A. the Bad Effect of Negative Thinking     B. Why Should People Think

C. Positive Thinking Benefits People        D. Thinking: The Vital Way

GREENWICH—Recently, a group of concerned Greenwich residents gathered to discuss how they could help those who may be alone during the holiday season．Armed with plenty of ideas and a sincere desire to do good, this group now refers to themselves as "A Random Act of Kindness"．As members of this group, we are to put together a Thanksgiving dinner on Thanksgiving Day that will provide a free meal to those who are alone or can't provide for themselves．This task will require many resources to make it successful．We are gathering a small army of volunteers to devote their time to helping prepare, cook, serve, clean, organize and promote this event．We hope that you can help us．The following is what we have planned to do;
·A 2 - hour free dinner that will take place at the Greenwich VFW with 2 seatings, one from 1 p．m．to 2 p．m．and the other from 2: 30 p．m．to 3: 30 p．m．by reservation only on Thanksgiving Day.
·Amy McPhail and Julie Carroll are accepting names of volunteers as well as food donations for the cause; Amy can be contacted （联络） at 692 -7841 for donations and Julie can be contacted if you'd like to volunteer at 884 -0658．
·A bank account has been created through Glens Falls National Bank to accept money donations and checks can be made payable to "A Random Act of Kindness" and sent to Glens Falls National Bank c/o Dan Flynn．
·Ellen Pemrick （ Caterer） ．Beth Anthony （ Beth's Cafe） and David Hughes （Glens Falls Hospital） will be consulted to make sure the highest quality of food can be served．
·We are looking to serve between 150 and 250 people at this event．We are serving the following: turkey gravy, mashed potatoes, green beans, cranberry sauce, stuffing rolls, pumpkin pie, apple pie．Beverages will include: milk, water, coffee & apple cider．
If you are interested in donating any of the above items, please drop off your donations at the VFW in Greenwich any evening between November 14 and November 24．If you have any problems dropping any items off during that time, please contact George Perkins at either 692 -2367 or 573 -8115．Any non-perishable food donalions not used for the dinner will be donated to the local Greenwich Food Pantry．
Any help you can provide for us would be gready appreciated．Everyone's generosity to the Greenwich community and its residents is very much appreciated．Reservations for dinner are now being accepted by calling Pal Perkins at 692 -2367 until November 13．
【小题1】If you want to be a volunteer for this Thanksgiving dinner, you may call _____．

While my father was an officer of the British army in South Africa, we lived in a ___1___ house. One ___2___ my father and sister and  I were sitting together. He was ___3___ the window. I suddenly ___4___ that he was turning very pale. I sat ___5___, for I did not want to __6__ my sick sister. Soon father said in a ___7___ voice, “Kate and Joan, a friend of mine is ___8___ here to see me this evening, and I wish to be ___9___ him. Will you go up to your own room?” We ___10___, went to our room and closed the door.

Soon I heard a ___11___ like that of a door burst in, and then a climb of feet. They were hurrying ___12___ the narrow stairs. Fearing that there was ___13___ near, I seized the pistol(手枪) on the table. Then I heard my father cry out, "For God’s sake(快!), child, ___14___ the door. " I did so. To my horror(恐怖), I saw, ___15___ my father’s shoulder, a gorilla(大猩猩), the worst enemy of the soldier in ___16___. He was ___17___ my father. I raised the pistol and fired. The animal fell backwards with ___18___ loud cry. Father took the ___19___ smoking pistol from my hand, and fired another shot, which ___20___ the gorilla.

It happened that father had ___21___ us upstairs because he thought he would be able to ___22___ the door ––– which was twenty feet away –––___23___ the animal reached it. However, the gorilla was too ___24___ for him; and this was the cause of the ___25___ flight(逃跑) up the stairs.

1. A. two-storeyed  B. two storeyed      C. two-storeys D. two storeys

2. A. o’clock  B. night   C. evening      D. time

3. A. towards  B. opposite     C. inside  D. behind

4. A. knew     B. learned       C. felt     D. noticed

5. A. still B. lonely C. sadly   D. unhappily

6. A. hurt       B. frighten      C. lose    D. trouble

7. A. loud       B. sad     C. calm   D. pleasant

8. A. moving  B. staying       C. running      D. coming

9. A. friendly to     B. alone with  C. helpful to   D. careful with

10. A. promised     B. trembled    C. obeyed       D. replied

11. A. sound   B. cry     C. voice  D. shout

12. A. to B. down  C. through      D. up

13. A. some difficulty    B. a thief C. some danger      D. an accident

14. A. open    B. close   C. pull    D. draw

15. A. on B. above  C. over    D. from

16. A. South America    B. Africa C. South Asia  D. Europe

17. A. aiming at     B. marching towards C. shooting at      D. running after

18. A. an exciting   B. a calm C. an angry     D. a natural

19. A. still      B. yet      C. even   D. already

20. A. hit       B. murdered   C. frightened  D. killed

21. A. taken    B. sent    C. driven D. forced

22. A. push     B. lock    C. guard  D. defend

23. A. until     B. when  C. before D. though

24. A. quick   B. huge   C. heavy  D. stupid

25. A. anxious       B. fearless      C. excited       D. hurried

_____ the Internet brings much profit in, it can cause o lot of social problem.

A. If         B. While          C. Once      D. When