【題目】B

American researchers found females are the more talkative sex because of a special “l(fā)anguage protein(蛋白質(zhì))” in the brain.

The study, conducted by neuroscientists (神經(jīng)學(xué)家)and psychologist from the University of Maryland, concluded that women talked more because they had more of the Foxp2 protein. The research, published in the Journal of Neuroscience, found that higher levels were found among humans that were women but in rats that were males. Their findings came after it was previously claimed that ladies speak about 20,000 words a day – over 13,000 more than men. “This study is one of the first to report a sex difference in the expression of a language-associated protein in humans or animals,” said Prof Margaret McCarthy, who led the study. In their study, the researchers attempted to determine what might make male rats more vocal than their female friends.

They separated four-day-old rats from their mothers and then counted the number of times they cried out in the “ultrasonic range”, the frequencies higher than humans can hear, over five minutes. While both sexes called out hundreds of cries, the males called out twice as often, they found. But when the pups were returned to their mother’s cage, she fussed over her sons first. Tests conducted on the parts of the brain known to be associated with vocalcalls showed the male pups have up to twice as much Foxp2 protein as the females. The researchers then increased the production in the brains of female pups and reduced it in males. This led to the female rats crying out more often and their mothers showing more interest to them. In contrast, males became less “talkative”.

The researchers then tested samples from ten children, aged between three and five, which showed that females had up to 30 per cent more of the Foxp2 protein than males, in a brain area key to language in humans.

“Based on our observations, we assume higher levels of Foxp2 in girls and higher levels of Foxp2 in male rats is an indication that Foxp2 protein levels are associated with the more communicative sex,” said Prof McCarthy. “Our results imply Foxp2 as a component of the neurobiological basis of sex differences in vocal communication in mammals. “

【1】What can be inferred from the second paragraph？

A. women always speak more words than men.

B. men and male rats have low levels of language protein.

C. McCarthy isn’t the first to find females more talkative

D. women and male rats have similar levels of Foxp2.

【2】What does the underlined phrase “fussed over” in the third paragraph mean?

A.relyed on B. related to

C. put pressure on D. paid attention to

【3】 What’s the purpose of the experiments on rats carried out by the researchers?

A.To test which part of the brain is key to language in rats and humans.

B. To discover the association between Foxp2 protein and vocal communication.

C. To determine the reason why female rats are more talkative than male rats.

D. To prove the levels of Foxp2 protein in humans and rats are different.

【4】Which of te following can be the best title for the passage ?

A. Why women are the talkative sex

B. Tests on humans and rats

C. Sex differences in Foxp2 protein

D. Foxp2 protein determines oral ability

【答案】

【1】C

【2】D

【3】B

【4】A

【解析】

試題分析：本文研究了蛋白質(zhì)和人類的談話能力的關(guān)系，結(jié)果發(fā)現(xiàn)女性比男性更為健談。

【1】推理題。根據(jù)文章第二段Their findings came after it was previously claimed that ladies speak about 20,000 words a day – over 13,000 more than men. “This study is one of the first to report a sex difference in the expression of a language-associated protein in humans or animals,” said Prof Margaret McCarthy, who led the study可知他并不是第一個研究女性更為健談的人。故C正確。

【2】猜詞題。根據(jù)本句But when the pups were returned to their mother’s cage, she fussed over her sons first.可知當(dāng)小老鼠回到母親的籠子的時候，母親先關(guān)注她的兒子們。所以“fussed over”是“注意”的意思，故D正確。

【3】細(xì)節(jié)題。根據(jù)文章第三段4,5行“Based on our observations, we assume higher levels of Foxp2 in girls and higher levels of Foxp2 in male rats is an indication that Foxp2 protein levels are associated with the more communicative sex,”可知這個研究關(guān)注的是研究Foxp2蛋白質(zhì)和人的語言能力的關(guān)系。故B正確。

【4】標(biāo)題確定題。根據(jù)文章主題段第一段American researchers found females are the more talkative sex because of a special “l(fā)anguage protein(蛋白質(zhì))” in the brain.可知本文研究的是為什么女性更加健談。故A正確。

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：

【題目】Sweet memories __________ as I looked at the pictures __________ were taken at the beach last summer.

A. took out; which B. crowded in; which

C. ended up; that D. dropped by; that

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】If your preschoolers turn up their noses at carrots or celery, a small reward like a sticker (貼畫) for taking even a taste may help get them to eat previously disliked foods, a UK study said.

Though it might seem obvious that a reward could encourage young children to eat their vegetables, the idea is actually controversial, researchers wrote in the American Journal of Clinical Nutrition. That’s because some studies have shown that rewards can backfire and cause children to lose interest in foods they already liked, said Jane Wardle, a researcher at University College London who worked on the study. Verbal praise, such as “Brilliant! You’re a great vegetable taster”, did not work as well.

The study found that when parents gave their small children a sticker each time they took a “tiny taste” of a disliked vegetable, it gradually changed their attitudes. The children were also willing to eat more of the vegetables — either carrots, celery, cucumber, red pepper, cabbage or sugar snap peas — in laboratory taste tests, the study said.

Researchers randomly assigned (分派) 173 families to one of these groups. In one, parents used stickers to reward their children each time they took a tiny sample of a disliked vegetable. A second group of parents used verbal praise. The third group, where Parents used no special vegetable-promoting methods, served as a “control”.

Parents in the reward groups offered their children a taste of the “target” vegetable every day for 12 days. Soon after, children in the sticker group were giving higher ratings to the vegetables—and were willing to eat more in the research lab, going from an average of 5 grams at the start to about 10 grams after the 12-day experience. The turnaround(轉(zhuǎn)機(jī)) also seemed to last, with preschoolers in the sticker group still willing to eat more of the once-disliked vegetable three months later.

Why didn’t the verbal praise work? Wardle said the parents’ words may have seemed “insincere” to their children.

【1】The purpose of writing the passage is .

A. to show the procedure of an experiment on children’s diet

B. to introduce a practical method of making children eat vegetables

C. to explain why children hate to eat vegetables

D. to present a proper way of verbal praise to parents

【2】The underlined word “backfire” in Paragraph 2 probably means “_______”.

A. shoot from behind the back

B. make a fire in the backyard

C. produce an unexpected result

D. achieve what was planned

【3】【改編】Which of the following statements is not true according to the passage?

A. It remains a question whether rewarding is a good way to get children to eat vegetables.

B. Children in the sticker group will be interested in eating vegetables.

C. Oral praise doesn’t work quite well in encouraging children to eat vegetables.

D. Most children are born to dislike carrots or celery.

【4】What can we learn from the last paragraph?

A. Children like rewards, not verbal praise.

B. Parents should give up verbal praise.

C. Children are difficult to inspire.

D. Parents should praise their children in a sincere tone.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】The dictionary is of great use to me. I would gladly have paid __________ for it.

A. twice as much B. twice as many

C. much as twice D. many as twice

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】-Oh, you've got this English-Chinese dictionary. How do you find it?

-It is __________. I turn to it whenever I meet with new words.

A. of no use B. great useful

C. of great use D. not useful

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】If the arrival of your train at your destination is delayed by more than 5 minutes ______ the timetable, we will refund the full price of your ticket if the delay is caused by our company

A.rather than B. according to

C.regardless of D.due to

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】The kings of ancient Egypt built strong tombs to keep their bodies safe after death and to hold their treasures. The Great Pyramid was built thousands of years ago for a king called Khufu. It is located on the west bank of Nile River not far from Cairo. In fact all the pyramids along the Nile are on its west bank. The ancient Egyptians compared the rising of the sun to the beginning of life and the setting of the sun to the end of life. This is why their dead bodies were buried on the west bank of the Nile. The people of Mexico also built pyramids. They did not build the pyramids for tombs. They used to build a pyramid and then a temple on top of it. The pyramids of Mexico are not as high as the pyramids of Egypt, but they are big. Each of the pyramids has a wide stairway that goes from the bottom to the top.

The biggest pyramid in Mexico is almost 2000 years old. Scientists think it took 10,000 men more than ten yeas to build it. On the top they build a temple of the sun. The temple is no longer there but people still called it the Pyramid of the Sun.Near it is another huge pyramid, the Pyramid

of the Moon.

【1】In ancient Egypt pyramids were built __________.

A. for visitors to see B. for kings to live in

C. for king Khufu D. as the kings’ tombs

【2】All the pyramids along the Nile are on its west bank, because in ancient Egypt people thought __________.

A. they died in the west

B. the sun sets in the west

C. the end of their lives was like the setting of the sun

D. they would go to the west after death

【3】The Pyramid of the Sun was built_________.

A. in 100 B. in the second century

C. 100 years B.C D. before the first century

【4】Which of the following is wrong?

A. The kings of ancient Egypt built strong tombs only to hold treasures.

B. The ancient Egyptians compared the rising of the sun to the beginning of life and the setting of the sun to the end of life.

C. The biggest pyramid in Mexico is nearly 2000 years old.

D. Near the Pyramid of the Sun, there is the Pyramid of the Moon.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】-If you could reduce the price __________$15，I could increase my order.

-I'm afraid the best I can do is $10.

A. by B. to

C. at D. for

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Hot __________ the night air was, we slept deeply because we were so tired after the long journey.

A. although B. as

C. while D. however

查看答案和解析>>

同步練習(xí)冊答案