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[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 (認(rèn)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 (由寄生蟲(chóng)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 (輸送) 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)

________________________________________________________________________

 

【答案】

 

1.Why do IQ scores vary by nation? / Why do IQ scores vary from nation to nation? / Different IQ between nations may result from infectious diseases.

2.highest disease burdens

3.in several ways

4.Education, income and non-agricultural labor.

5.National disease burdens and average intelligence scores.

【解析】 略

 

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Three different types of【小題1】 
The most common type is  【小題2】  . It disappears quickly and  【小題3】 no special attention.
The second type is situation, which usually lasts for  【小題4】 than a year.
The   【小題5】   kind is chronic, which means if people experience habitual loneliness, they’ll have problems socializing with others
An important
 【小題6】  in
loneliness
With the help of Psychologists, we know a person’s social contact is one important factor.
We depend on a wide variety of people for different reasons. For instance, we have interests and activities  【小題7】  to our friends’.
【小題8】  people may have many social contacts, but they sometimes feel they should have more.
The    【小題9】  
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The other is that temporary and situational loneliness can be a sad condition, sometimes   【小題10】   too.
 

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According to the passage, people don’t think (1) _________ of teenagers.

I seldom felt (2) ________at a funeral. But from the boy’s speech, I know his grandmother had great (3) _________ on the boy when she was alive.

This time at the (4)_________, the author felt differently.

She would

always found

something

(5) _______

even in some

unpleasant situation.

She was a

respectful woman

who never (6)

________ off her

talent in business.

She had a

strong will

and would

never (7)

______ her

career till she died.

The author

was in

deep

 (8) ____ at the

moving situation.

The author has changed his (9) ________

on teenagers

through this

funeral ceremony.

The only

problem with

the young is

that they can’t

(10)________

themselves

well.

 

 

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