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题型:阅读理解-阅读单选 难度:0.65 引用次数:117 题号:12501087

"While protected areas are generally designed to be safe havens, unchecked human pressures car have a negative impact," says zoologist Femke Broekhuis, lead author of a new study by the University of Oxford that has raised questions about levels of tourism in protected areas.

The study focused on female cheetahs(非洲猎豹)in the Maasai Mara National Reserve, Kenya. Cheetahs have babies of one to six, few of which make it to adulthood. The study claims that the already low cubs(幼崽)survival rate is made even worse by tourist pressure. It found that one or no cub survived to adulthood in areas with high levels of tourism, while an average of two survived in areas with low levels.

The higher death rate is likely to be caused by poor food supplies for the cubs. "Cheetahs, especially those with cubs, are a major tourist attraction and commonly attract large numbers of vehicles," says Broekhuis. "High tourist numbers have been found to negatively impact cheetah hunts and even if a hunt is successful, the presence of tourists can result in a cheetah abandoning its kill."

While Broekhuis is eager to stress the positive role of conservation, she also admits the results are worrying. Cheetah numbers are already being squeezed. Predation(掠夺)from lions as well as habitat reduction means the big cats have experienced sharp population decline. In fact, their numbers are thought to have halved in Kenya in the past 40 years to around 7,000. They have also disappeared from                                        91 percent of their historic range.

Researchers suggest stricter limits on the number of cars allowed near the animals. Growth rates for cheetahs inside the protected areas need to be high if they are to make up for declines outside of them.

1. What is the text mainly about?
A.Cheetah numbers halved.
B.Conservation has a positive effect,
C.Tourism reduced cheetah numbers,
D.Tourists are not allowed to get close to cheetahs.
2. Why do cubs suffer higher death rate?
A.Because the birth rate is low,
B.Because hunman hunt them cruelly.
C.Because their habitat is reduced.
D.Because they have poor food supplies.
3. What is Broekhuis' attitude towards the results?
A.DisappointedB.Worried.
C.Satisfied.D.Shocked.
4. What is the researchers' advice?
A.Set more preserves.B.Stop hunting cheetahs.
C.Give cheetahs more food.D.Limit cars near cheetahs.

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【推荐1】Windbreaks are barriers formed by trees and other plants. Farmers plant these barriers around their fields, which help prevent the loss of soil and stop the wind from blowing soil away. They also keep the wind from damaging or destroying crops. Besides, extra trees and plants can be cut down and used or sold for wood.

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1. The advantages of building a windbreak are as follows EXCEPT ________ .
A.keeping the wind from destroying grain cropsB.increasing the production of grain harvests
C.providing humans with shade from the sunD.reducing the damaging effects of wind and rain
2. The author thinks windbreaks are interesting because________.
A.the movement of air lifts the soilB.windbreaks allow some wind to pass through
C.large trees are lined with short onesD.windbreaks can stop the wind getting through
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4. What can be inferred from the text?
A.Extra trees and plants can be cut down for wood.
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【推荐2】Marks & Spencer (M&S) is planning to remove “best before” labels (标签) from 300 varieties of fruit and vegetables in its stores to cut food waste. The change will rely on customers using their judgment to determine whether goods are still fine to eat.

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Tesco. the UK's largest supermarket chain, had already announced the end of best before dates on its own-brand fruit and vegetables as far back as 2018, while the German supermarket LidI also says it does not include best before information to reduce food waste. Now M&S is doing the same, with the aim to halve (减半) food waste from its products by 2030 compared with 2018. Achieving those targets would put it in line with the UK's commitment to meet the United Nations' goal of halving food waste by 2030 compared with 2007.

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