【题目】Scientists in Britain have managed to teach bumblebees(大黄蜂) to pull strings to get to food and then pass on what they have learned to others in their colony(群体)showing a high level of intelligence despite their tiny brains.

Researchers at Queen Mary University of London said the experiments, often used to test the intelligence of apes (猿) and birds, showed for the first time that some insects are up to the task, and can also pass skills on through several generations.

The findings add to the evidence suggesting the ability for “culture spread” the ability to learn and pass on knowledge and skills — may not be exclusive to humans.

In the research, published in the journal PLOS Biology on Tuesday, the scientists were able to train 23 out of a group of 40 bees to pull strings with their legs and feet.

The strings were attached to discs — or artificial “flowers” — containing food at their center but placed under a transparent screen. The bees, spotting the food beneath the screen, learned to pull the “flowers” out by pulling the string with their legs and feet to be able to get to it.

From another group of bees given the chance to solve the task without any training, only two of 110 were successful.

Another group of bees was then allowed to observe the trained bees pulling the strings, and 60 percent of them successfully learned the skill. Finally, trained bees were put in colonies, and the scientists found the technique spread successfully to a majority of the colony’s worker bees.

Lars Chittka, a Queen Mary University professor who guided the project, said the team is interested in figuring out the brain processes behind the bees’ learning and teaching skills.

1What does the underlined word “exclusive” in Paragraph 3 probably mean?

A. Ordinary. B. Unique. C. Beneficial. D. Widespread.

2What did the researchers find about bees?

A. Bees learn best in insects.

B. Bees are as clever as birds.

C. Bees are born good learners.

D. Bees can be trained to learn skills.

3What may the research team focus on next?

A. What else bees can do. B. Where bees learn skills.

C. How bees teach others. D. How bees’ brain work.

4What may be the best title for the text?

A. Small bees, great abilities B. Bees can learn and teach

C. Bees are smarter D. Let bees learn

【题目】根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,并在答题卡上将该项涂黑。选项中有两项为多余选项。
How to SurviveExam Stress
Exam time is one of the most stressful in school, whether it is highschool, college or graduate school. Even the best students feel the pressure. The first sign of a problem while preparing for an exam isworry. If we can get rid of worries, or at leastcontrol them, then we’re in a much better position to do well on our tests. Take the following steps to survive examstress and increase your overall performance as a result.
What causes youanxiety when you are studying? Too much noise? Then move to a quieter place.Delayed work? Catch up with your studies a couple nights before. That way youcan save the final night before the exam to review and get a good night ofsleep.
The second way to deal with worry is to replace thoughts.Suppose you wake up at three in the morning and you’re worried about an exam.What do you do? Doing something productive might allow you tosleep better when you finally do go back to bed.
Another way tore place negative thoughts is to do something physically active. Work out. Takea quick walk or a nice run. For example, I might worry about the examhaving surprise questions that I’m not prepared to answer. But I can put thosethoughts aside by reminding myself that I’ve taken many exams and I’ve handledsurprise questions before.
The third option isto treat the symptoms. Keepthings in perspective. Think of one final exam that causes you the mostanxiety. Now think of the worst thing that could happen. If you’ve prepared,then likely the worst grade you could get is a C. And, if you’ve been applyingwhat we’ve been talking about, then you’ll likely do no worse than a B.
A. How bad is thatreally?
B. The first is to delete the causes.
C. Another idea isto think positive thoughts.
D. How aboutgetting up and studying for an hour?
F. What we should do is to thinkpositively and get rid of it.
G. So we are supposed to make our effortto improve our surroundings.

 0  146958  146966  146972  146976  146982  146984  146988  146994  146996  147002  147008  147012  147014  147018  147024  147026  147032  147036  147038  147042  147044  147048  147050  147052  147053  147054  147056  147057  147058  147060  147062  147066  147068  147072  147074  147078  147084  147086  147092  147096  147098  147102  147108  147114  147116  147122  147126  147128  147134  147138  147144  147152  151629 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网