阅读下面短文，并根据短文后的要求答题（请注意问题后的字数要求）。

[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)

________________________________________________________________________

　　In the United States in the early 1800’s, individual state governments had more effect on the economy than did the federal government. States controlled manufacturing, banking, mining and transportation firms and participated in the construction of various internal improvements such as canals, turnpikes（收费关卡）, and railroads. The states encouraged internal improvements in two distinct ways: first, by actually establishing state companies to build such improvements; second, by providing part of the capital for mixed public-private companies setting out to make a profit.
　　In the early nineteenth century, state governments also engaged in a surprisingly large amount of direct restricting activity, including extensive licensing and inspection programs. Licensing targets reflected both similarities in and difference between the economy of the nineteenth century and that of today: in the nineteenth century, state regulation through licensing fell especially on drug dealers, innkeepers and retail merchants of various kinds. The goods of trade generally came under state inspection and such important raw material as lumber and gunpowder were also subject to state control. Finally, state governments experimented with direct labor and business regulation designed to help the individual laborer or consumer, including setting maximum limits on hours of work and restrictions on price-fixing by business.
　　Although the states dominated economic activity during this period, the federal government was not inactive. Its goals were the facilitation of western settlement and the development of native industries. Toward these ends the federal government pursued several courses of action. It established a national bank to stabilize banking activities in the country and, in part, to provide a supply of relatively easy money to the region, where it was greatly needed for settlement. It permitted access to public western lands on increasing easy term, with a summit in the Homestead Act of 1862, by which title to land could be claimed on the basis of residence alone. Finally, it set up a system of tariffs（关税） that was basically protectionist in effect, although maneuvering for position by various regional interests produced frequent changes in tariff rates throughout the nineteenth century.
1.What does the passage mainly discuss？
　　A. States rights versus federal rights.
　　B. The participation of state governments in railroad, canal, and turnpike construction.
　　C. The roles of state and federal government in the economy of the nineteenth century.
　　D. Restricting activity by state government.
2.It can be inferred from the first paragraph that in the nineteenth century canals and railroads were ______.
　　A. built with money that came from the federal government
　　B. much more expensive to build than they had been previously
　　C. built predominantly in the western part of the country
　　D. sometimes built in part by state companies
3.According to the passage, which of the following is true of the Homestead Act of 1862？
　　A. It increased the money supply in the West.
　　B. It was a law first passed by state government in the West.
　　C. It made it increasingly possible for settlers to obtain land in the West.
　　D. It established tariffs in a number of regions.
4.Which of the following activities was the responsibility of the federal government in the nineteenth century？
　　A. Control of the manufacture of gunpowder.
　　B. Determining the conditions under which individuals worked.
　　C. Regulation of the supply of money.
　　D. Inspection of new homes built on western lands.

I don't think there is anything wrong with your blood. The key to your problem is that long nap（打盹,小睡）after dinner. If you didn't sleep for hours during the early part of the evening, you would be more ready to sleep at bedtime. If you didn't nap after dinner, you would not want to stay up so late, and you would not feel the need to take a sleeping pill. The pill is still working in your system when you get up in the morning. This helps account for the fact that you feel tired all day. You should get out of the habit of sleeping during the evening. Right after your evening meal, engage in some sort of physical activity - a sport such as bowling, perhaps. Or get together with friends for an evening of cards and conversation. Then go to bed at your usual time or a little earlier, and you should be able to get a good nights rest without taking a pill.

　　If you can get into the habit of spending your evenings this way, I am sure you will feel less tired during the day. At first it may be hard for you to go to sleep without taking a pill. If so, get up and watch television or do some jobs around your house until you feel sleepy. If you fall asleep and then wake up a few hours later, get up but do not take a sleeping pill. Read a while or listen to the radio, and make yourself a few hours'sleep that night, you will feel better in the morning than you usually feel after taking a pill. The next night you will be ready to sleep at an earlier hour.

　　The most important thing is to avoid taking that nap right after dinner and avoid taking pills.

1. According to the writer, it is difficult for you to go to sleep because　　　　　.

　　A. you get the habit of staying up late      B. you haven't taken sleeping pills

　　C. you sleep for hours after dinner         D. you fail to do some exercises

2. Which of the following is NOT true if you want to get out of the habit of sleeping during the evening?

A. Go to bed earlier than usual. 　　　B. Talk with friends after dinner.

C. Stay with friends after dinner. 　　 D. Do some physical labor. 

3. You feel tired all day probably because　　　　　.

A. you stay up too late 　　　B. you get up too early in the morning

C. you take sleeping pills 　　D. you wake up too frequently at night

4. Which of the following is true according to the passage

A. You mustn't take sleeping pills in order to get a good night's sleep.

B. You should stay up if you want to sleep effectively.

C. Food is necessary at night if you fail to go to sleep.

D. It is very important to get out of the habit of taking a nap after dinner.

5. We may infer that the author is most probably a　　　　　.

A. doctor　　　B. scientist 　　C.  reporter　　 D. professor

   Will you get a good job？ What will you do？ Many new graduates feel lost when they consider the endless list of career choices. They’ve invested a lot of money for their diploma（文凭）and now an important question stares them in the fact.
I’ve seen so many now graduates who do not know how to use the degree they have just earned. An example was Dave，who loved sports and had played baseball throughout his college years. He had his heart set on working for Nike. But he had never made clear in his own mind what kind of job he could do for Nike，so nothing ever happened. Another example was Allison，who was a history major. She wanted to work as an event planner，but unfortunately，no one hired her. Why？ No experience.
Failing to do some solid career exploration first，to get a clear idea of the types of jobs you can do，is a big error that many college students make. After our suggestion，Dave and Allison both found their jobs. To ensure a brighter future，follow these effective strategies：
—Make educated career choices. Identify the job you want. Conduct research. Ask parents to advise you on actual job duties. Consider what your natural talents are，and look for positions where you can use them.
—Don’t rely on the Internet. Networking is an effective tool—be sure it’s a job—hunting strategy you use. New studies from the Department of Labor state that only 4％ of job-seekers found their job on the Internet. The fact is that 63％ of all jobs are filled by contacts.
Employers are making quick decisions. Most people lose the job in the first minute of the interview. It’s deadly to let the employers focus quickly on how well you can perform the job.
—Practice your interviewing skills. Be ready for the tough questions by first writing out good answers to possible questions and having a role-playing interview with your friend.
60．What does the author seem to be most probable？
A．A job-hunter. 　　　　　　　B．A magazine editor.
C．A website owner. 　　　　　 D．A job-seeking adviser.
61．In order to be well prepared for the interview, you’d better ____________.
A．surf the Internet for contacts
B．get along well with your workmates
C．practice the interview for several times
D．take care of your dress
62．According to the text it is suggested that Dave should ____________.
A．let others know what he can do for them
B．study further to get a higher degree
C．give up his interest in playing basketball
D．take part-time jobs first
63．For Allison, she should ____________.
A．find a job in another field
B．find some work to gain work experience
C．not tell the employer her major
D．offer more personal information