Question

Easter(復(fù)活節(jié)    ) 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 are 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 (棲息地) 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 (遷徙) 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.

Native to the US, pygmy rabbits weigh less than 1 pound and live in the American West. They are believed to be the smallest rabbits in the world. Their habitats have been destroyed by development. Several populations, such as the Columbia Basin pygmy, almost went extinct and were saved by zoo breeding programs. Pygmy rabbits also rely on winter cover by digging tunnels through the snow to escape predators, but lesser snowfall is leaving them exposed.

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

1.The writer mentions Easter at the beginning of the passage in order to_______.

A．show the importance of Easter Day	B．introduce the issue about bunnies
C．remind people of Easter traditions
D．discuss the relationship between Easter and bunnies

2.The word “culprit” ( Paragraph 2) is closest in meaning to______.

A．criminal

B．judge

C．victim

D．producer

3.According to the passage, some rabbits can now be easily discovered by predators because they_______

A．a(chǎn)re exposed lo more skillful hunters

B．have moved to habitats with fewer plants

C．haven't adapted themselves to climate change

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

4.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

 

Answer 1

【答案】

1.B

2.A

3.C

4.B

【解析】文章介紹了美國多種兔子受到氣候變化的影響的具體情況。

1.B 推理題。本段是用一種關(guān)聯(lián)的方式引起文章的內(nèi)容。故B正確。

2.A 猜測詞義題。文章講述了溫度上升導(dǎo)致了美國兔子種類和數(shù)量的變化，故culprit意為：罪魁禍?zhǔn)�。故A正確。

3.C 推理題。根據(jù)第四段最后一句The National Wildlife Federation has reported that hunters have noticed their numbers are already markedly down.可知兔子的數(shù)量已經(jīng)下降了，說明他們可能沒有適應(yīng)氣候的變化。故C正確。

4.B 細(xì)節(jié)題。根據(jù)第五段3,4行. As global temperatures rise, they would naturally migrate (遷徙) to higher ground — but they already occupy the mountaintops.和第六段2,3行recent studies have shown that the lower range of their habitat has already shifted upward about 700 meters可知這兩種兔子都面臨同樣的問題，都收到海平面上升的影響。故B正確。