题目内容

【题目】

________her mother after being separated for 20 years，she couldn't help，even though she tried not to，________.

A．Seen；crying

B．To see；cry

C．Seeing；crying

D．Having seen；cry

【答案】C

【解析】考查非谓语动词。第一空是现在分词作状语；第二空，因有状语从句的分隔，不容易判断，正常语序是She couldn't help________even though she tried not to，can't help doing sth.“情不自禁做某事”，故选C。

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Easter(复活节 ) is still a great day for worship, randy in baskets and running around the yard finding eggs, but every year it gets quite a bit worse for bunnies.

And no, not because the kids like to pull their ears. The culprit is climate change, and some researchers found that rising temperatures arc having harmful effects on at least five species of rabbit in the US.

Take the Lower Keys March rabbit, for instance. An endangered species that lives in the Lower Florida Keys, this species of cottontail is a great swimmer — it lives on the islands! — but it is already severely affected by development and now by rising levels. According to the Center for Biological Diversity, an ocean level rise of only 0. 6 meters will send these guys jumping to higher ground and a 0.9-meter rise would wipe out their habitat (栖息地) completely.

The snowshoe hare, on the other hand, has a color issue. Most of these rabbits change their fur color from white in the wintertime to brown in the summer, each designed to give them better cover from predators（捕食者）. As the number of days with snow decreases all across the country, however, more and more bunnies arc being left in white fur during brown dirt days of both fall and spring, making them an easier mark for predators. Researchers know that the color change is controlled by the number of hours of sunlight, but whether the rabbit will be able to adapt quick enough to survive is a big question. The National Wildlife Federation has reported that hunters have noticed their numbers are already markedly down.

American pikas or rock rabbits, a relative of rabbits and hares, might be the firs' of these species to go extinct due to climate change. About 7-8 inches long, pikas live high in the cool, damp mountains west of the Rocky Mountains. As global temperatures rise, they would naturally migrate (迁徙) to higher ground — but they already occupy the mountaintops. They can't go any higher. The National Wildlife Federation reports that they might not be able to stand the new temperatures as their habitat beats up.

The volcano rabbit has the same problem. These rabbits live on the slopes of volcanoes in Mexico, and recent studies have shown that the lower range of their habitat has already shifted upward about 700 meters, but there are not suitable plants for them to move higher, so they are stuck in the middle. Scientists are concerned about their populations.

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All of this gives new meaning to dressing up in a giant bunny costume this Easter.

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B. judge

C. victim

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【2】 According to the passage, some rabbits can now be easily Uncovered by predators because they_______

A. are exposed lo more skillful hunters

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C. haven't adapted themselves to climate change

D. can't change their fur color into white in the fall and the spring

【3】The problem faced by volcano rabbets and rock rabbits is that________.

A. both are affected by 1ess snow

B. both are affected by rising sea levels

C neither can find enough food

D. neither can migrate to higher places

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