If Operation Migration is successful, whooping cranes will__________.

A．follow airplanes south every year.

B．live in Canada all year round.

C．learn to migrate on their own.

D．be unable to fly back.

查看答案及解析进入在线模考

参考答案

答案解析

细节题。题干：如果“迁徙行动”成功，美洲鹤将__________。利用题关键词successful可以定位到第五段的第三句，可知如果这次行动成功的话，这些鸟儿以后就可以独立地迁徙了，故正确答案为C。

你可能感兴趣的试题

1 请根据短文内容，回答题。

On the Trial of the Honey Badger

On a recent field trip to the Kalahari Desert, a team of researchers learnt a lot more about honey badgers (獾) . The team employed a local wildlife expert, Kitso Khama, to help them locate and follow the badgers across the desert. Their main aim was to study the badgers' movements and behavior as discreetly (谨慎地) as possible without frightening them away or causing them to change their natural behavior. They also planned to trap a few and study them close up before releasing them in view of the animal's reputation, this was something that even Khama was reluctant to do.
"The problem with honey badgers is they are naturally curious animals, especially when they see something new," he says, "that, combined with their unpredictable nature, can be a dangerous mixture. If they sense you have food, for example, they won't be shy about coming right up to you for something to eat. They're actually quite sociable creatures around humans, but as soon as they feel they might be in danger, they can become extremely vicious ( 凶恶的 ). Fortunately this is rare,
but it does happen."
The research confirmed many things that were already known. As expected, honey badgers ate any creatures they could catch and kill. Even poisonous snakes, feared and avoided by most other animals, were not safe from them. The researchers were surprised, however, by the animal's fondness for local melons, probably because of their high water content. Previously researchers thought that the animal got all of its liquid requirements from its prey ( 猎物). The team also learnt that, contrary to previous research findings, the badgers occasionally formed loose family groups,
They were also able to confirm certain results from previous research, including the fact that female badgers never socialised with each other.
Following some of the male badgers was a challenge, since they can cover large distances in a short space of time. Some hunting territories cover more than 500 square kilometers. Although they seem happy to share these territories with other males, there are occasional fights over an important food source, and male badgers can be as aggressive towards each other as they are towards other species.
As the badgers became accustomed to the presence of people, it gave the team the chance to get up close to them without being the subject of the animals' curiosity--or a sudden aggression.
The badgers' eating patterns, which had been disrupted, returned to normal. It also allowed the team to observe more closely some of the other that form working associations with the honey badger, as these seemed to badgers' relaxed attitude when near humans.
Why did the wild life experts visit the Kalahari Desert?

A．To find where honey badgers live.

B．To catch some honey badgers for food.

C．To find out why honey badgers have a bad reputation.

D．To observe how honey badgers behave.

查看解析在线模考

2 What does Kitso Khama say about honey badgers?

A．They are always looking for food.

B．They do not enjoy human company.

C．It is common for them to attack people.

D．They show interest in things they are not familiar with.

查看解析在线模考

3 What did the team find out about honey badgers?

A．There were some creatures they did not eat.

B．They were afraid of poisonous creatures.

C．Female badgers did not mix with male badgers.

D．They may get some of the water they needed from fruit.

查看解析在线模考