[1]Global difference in intelligence is a sensitive topic, long filled with a large number of different opinions. But recent data has indeed shown cognitive (认知的) ability to be higher in some countries than in others. What's more, IQ scores have risen as nations develop—a phenomenon known as the "Flynn effect". Many causes have been put forward for both the intelligence difference and the Flynn effect, including education, income, and even non-agricultural labor. Now, a new study from researchers at the University of New Mexico offers another interesting theory: intelligence may be linked to infectious-disease rates.

　　[2]The brain, say author Christopher Eppig and his colleagues, is the "most costly organ in the human body". Brainpower consumes almost up to 90 percent of a newborn's energy. It's clear that if something affects energy intake while the brain is growing, the impact could be long and serious. And for vast parts of the globe, the biggest threat to a child's body—and therefore brain—is parasitic (由寄生虫引起的) infection. These illnesses threaten brain development________________. They can directly attack live tissue, which the body must then try every means to replace. They can invade the digestive pipe and block nutritional intake. They can rob the body's cells for their own reproduction. And then there's the energy channeled (输送) to the immune system to fight the infection.

　　[3]Using data on national "disease burdens" (life years lost due to infectious diseases) and average intelligence scores, the authors found they are closely associated. The countries with the lowest average IQ scores have the highest disease burdens without exception. On the contrary, nations with low disease burdens top the IQ list.

　　[4]If the study holds water, it could be revolutionary for our understanding of the still-confusing variation in national intelligence scores.

1.What is the main idea of the text？(no more than 10 words)________________________

2.Complete the following statement with proper words.(no more than 4 words)

Those countries that have the ________________ are always at the bottom of the  IQ list.

3.Fill in the blank in Paragraph 2 with proper words. (no more than 5 words)

___________                                                               

4.What can cause intelligence difference？(no more than 8 words)

　　________________________________________________________________________

5.What does the word "they" (Line 2, Paragraph 3) probably refer to？(no more than 8 words)

________________________________________________________________________

The way people hold to the belief that a fun - filled, pain free life equals happiness actually reduces their chances of ever attaining real happiness. If fun and pleasure are equal to happiness then pain must be equal to unhappiness. But in fact, the opposite is true: more often than not things that lead to happiness involve some pain.
As a result, many people avoid the very attempts that are the source of true happiness. They fear the pain inevitably(不可避免的)brought by such things as marriage, raising children, professional achievement, religious commitment (义务), self - improvement.
Ask a bachelor(单身汉)why he resists marriage even though he finds dating to be less and less satisfying. If he is honest he will tell you that he is afraid of making a commitment. For commitment is in fact quite painful. The single life is filled with fun, adventure, excitement. Marriage has such moments, but they are not its most distinguishing features.
Couples with infant children are lucky to get a whole night’s sleep or a three - day vacation. I don’t know any parent who would choose the word fun to describe raising children. But couples who decide not to have children never know the joys of watching a child grow up or of playing with a grandchild.
Understanding and accepting that true happiness has nothing to do with fun is one of the most liberating realizations. It liberates（解放） time: now we can devote more hours to activities that can genuinely increase our happiness. It liberates money: buying that new car or those fancy clothes that will do nothing to increase our happiness now seems pointless. And it liberates us from envy: we now understand that all those who are always having so much fun actually may not be happy at all.
1. According to the author, a bachelor resists marriage chiefly because _______ .
A. he finds more fun in dating than in marriage
B. he believes that life will be more cheerful if he remains single
C. he is reluctant to take on family responsibilities
D. he fears it will put an end to all his fun adventure and excitement
2. Raising children, in the author’s opinion is ________ .
A. a rewarding task                  B. a thankless job
C. a moral duty                     D. a source of inevitable pain
3. From the last paragraph, we learn that envy sometimes stems from(由…造成)________ .
A. hatred　　 B. ignorance      C. prejudice(偏见)　　　D. misunderstanding
4. To understand what true happiness is one must ________ .
A. have as much fun as possible during one’s lifetime
B. be able to distinguish happiness from fun
C. put up with pain under all circumstances
D. make every effort to liberate oneself from pain
5. What is the author trying to tell us?
A. It is important to make commitments     B. One must know how to attain happiness.
C. Happiness often goes hand in hand with pain.   D. It is pain that leads to happiness.

9. I am in______charge of the class which was in ______ charge of my wife.

  A. 不填；the　　　　　　B. 不填；不填

　C. the; 不填　　　　　　D. the; the

选A。in charge of 的意思是“负责”、“管理”，其主语通常是人；in the charge of 的意思是“由……负责或管理”，其主语通常是物。

10. —Shall I sit at this end of the boat or the other end?

  —If you keep still, you can sit at______end.

  A. neither   B. each   C. either any

完成句子（共10小题，满分10分）

根据句意，在空格处填入适当的单词使句意完整，每空只能填一个词，请将该部分答案写在答题纸上。

86. 杂技演员走钢丝时, 观众都屏住了呼吸。

The audience ___________ its/their ____________as the acrobat walked along the tightrope.

87. 我期待暑假见到你。

I’m __________ ___________ to seeing you this summer vacation.   

88. 你会知道她是个信守诺言的女孩。

You’ ll find that she is a girl who always ___________ her ___________.

89. 他们很年轻的时候，就开始谋生了。

They began to___________ their ____________ when they were very young.

90.她说她八点在这等我，但现在九点了，她还没出现。

She told me she would meet me here at 8:00. But it is 9 o’clock now and she still hasn’t _____     ___    __ yet.

91. 考试作弊必予追究。

If you cheat in the exam, you'll never                       with it.

92. 这本词典不久就要出版。

The dictionary will be published _________ _________.

93. 经过长时间的讨价还价，我妻子终于把那件裙子的价钱砍了下来。

After bargaining for a long time, my wife succeeded in 　　　　　 ___________the price of the dress.

94．所有认识他的人都羡慕他取得诺贝尔化学奖。

All those who knew him          him            his winning the Nobel Prize for chemistry.

95．他们都是由那位老人养育成人的。

They were all                     by that old man.

The way people hold to the belief that a fun - filled, pain free life equals happiness actually reduces their chances of ever attaining real happiness. If fun and pleasure are equal to happiness then pain must be equal to unhappiness. But in fact, the opposite is true: more often than not things that lead to happiness involve some pain.

As a result, many people avoid the very attempts that are the source of true happiness. They fear the pain inevitably(不可避免的)brought by such things as marriage, raising children, professional achievement, religious commitment (义务), self - improvement.

Ask a bachelor(单身汉)why he resists marriage even though he finds dating to be less and less satisfying. If he is honest he will tell you that he is afraid of making a commitment. For commitment is in fact quite painful. The single life is filled with fun, adventure, excitement. Marriage has such moments, but they are not its most distinguishing features.

Couples with infant children are lucky to get a whole night’s sleep or a three - day vacation. I don’t know any parent who would choose the word fun to describe raising children. But couples who decide not to have children never know the joys of watching a child grow up or of playing with a grandchild.

Understanding and accepting that true happiness has nothing to do with fun is one of the most liberating realizations. It liberates（解放） time: now we can devote more hours to activities that can genuinely increase our happiness. It liberates money: buying that new car or those fancy clothes that will do nothing to increase our happiness now seems pointless. And it liberates us from envy: we now understand that all those who are always having so much fun actually may not be happy at all.

1. According to the author, a bachelor resists marriage chiefly because _______ .

A. he finds more fun in dating than in marriage

B. he believes that life will be more cheerful if he remains single

C. he is reluctant to take on family responsibilities

D. he fears it will put an end to all his fun adventure and excitement

2. Raising children, in the author’s opinion is ________ .

A. a rewarding task                  B. a thankless job

C. a moral duty                     D. a source of inevitable pain

3. From the last paragraph, we learn that envy sometimes stems from(由…造成)________ .

A. hatred　　 B. ignorance      C. prejudice(偏见)　　　D. misunderstanding

4. To understand what true happiness is one must ________ .

A. have as much fun as possible during one’s lifetime

B. be able to distinguish happiness from fun

C. put up with pain under all circumstances

D. make every effort to liberate oneself from pain

5. What is the author trying to tell us?

A. It is important to make commitments     B. One must know how to attain happiness.

C. Happiness often goes hand in hand with pain.   D. It is pain that leads to happiness.