2.Warm weather brought by El Nino has had mixed effects on animals in usually snowy places in North America,including New England,according to an Associated Press article.
Some animals seem to benefit from having a chance to gather more food before winter,and from expending less energy in daily survival mode.Others,like snowshoe hares,are put at center stage in predators'(捕食者) view when they lack snow for disguising their white fur-not a god thing for them,of course.
Black bears,on the other hand,have been keeping busy gathering nuts and apples,when they would normally have settled into their winter homes by now.Vermont and Massachusetts officials have asked residents to wait till snow falls to take out their bird feeders for the sake of safety,the article said.
"We suggest waiting for 6or more inches of snow that lasts before taking out your bird feeders,especially if you have been visited in the past by bears or if there are sightings of bears in your neighborhood,"Forrest Hammond,Vermont Fish and Wildlife's bear biologist,said in the article."Due to lack of snow and frozen ground,birds are able to seek food in fields and forests for their natural foods."
Snow amounts can also determine how comfortable bears are and how quickly they consume their accumulated fat during hibernation(冬眠),noted Hammond in the article.This is because snow covers and traps them in their winter homes,and also hides them from predators.
28.What may upset snowshoe hares because of El Nino?A
A.Their being caught more easily.
B.Their failing to gather more food.
C.Their consuming more energy.
D.Their losing sight of their enemies.
29.Why did the officials ask people to keep bird feeders until snow falls?C
A.They many disturb bears.
B.There's no need to do so.
C.To avoid attracting bears.
D.For the safety of bears.
30.What do the bear biologist's words imply?D
A.A heavy snow is on the way.
B.Bears are common nowadays.
C.Bears live mainly on birds in winter.
D.Warm weather benefits birds in winter.
31.Which of the following is the proper title for the passage?D
A.Warm Weather Helps Animals Survive
B.Snow Amounts Determine Animals'Winter Life
C.Measures Should Be Taken To Protect Wildlife
D.Lack of Snow Affects North American Animals.
分析 本文是一篇科教類閱讀,屬于說明文,據(jù)美聯(lián)社報(bào)道,溫暖的天氣帶來的厄爾尼諾現(xiàn)象已經(jīng)影響通常下雪的地方在北美,包括新英格蘭的動(dòng)物.本文以此展開,主要講述了厄爾尼諾現(xiàn)象對動(dòng)物的影響.
解答 28.答案:A.細(xì)節(jié)理解題.根據(jù)Others,like snowshoe hares,are put at center stage in predators'(捕食者) view when they lack snow for disguising their white fur-not a god thing for them,of course.可知,他們更容易被捕捉因?yàn)槎驙柲嶂Z現(xiàn)象.故選A.
29.答案:C.細(xì)節(jié)理解題.根據(jù)Vermont and Massachusetts officials have asked residents to wait till snow falls to take out their bird feeders for the sake of safety,the article said.可知,官員要求人們保持鳥食直到下雪的時(shí)候是為了避免吸引熊.故選C.
30.答案:D.句意理解題.根據(jù)Due to lack of snow and frozen ground,birds are able to seek food in fields and forests for their natural foods可知,在冬天溫暖的天氣對鳥兒有益.故選D.
31.答案:D.主旨大意題.閱讀全文,根據(jù)文章內(nèi)容可知,本文主要講述了冬季缺少雪對北美的動(dòng)物的影響.故選D.
點(diǎn)評 本文是一篇科教類閱讀,題目涉及多道細(xì)節(jié)理解題,主旨大意題,句意理解題.做題時(shí)學(xué)生應(yīng)仔細(xì)閱讀原文,把握文章主要內(nèi)容,聯(lián)系文章上下文內(nèi)容并結(jié)合所給選項(xiàng)含義,從中選出正確答案,一定要做到有理有據(jù),切忌胡亂猜測.