题目内容
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 本文是一篇科教类阅读,属于说明文,据美联社报道,温暖的天气带来的厄尔尼诺现象已经影响通常下雪的地方在北美,包括新英格兰的动物.本文以此展开,主要讲述了厄尔尼诺现象对动物的影响.
解答 28.答案:A.细节理解题.根据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,他们更容易被捕捉因为厄尔尼诺现象.故选A.
29.答案:C.细节理解题.根据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,官员要求人们保持鸟食直到下雪的时候是为了避免吸引熊.故选C.
30.答案:D.句意理解题.根据Due to lack of snow and frozen ground,birds are able to seek food in fields and forests for their natural foods可知,在冬天温暖的天气对鸟儿有益.故选D.
31.答案:D.主旨大意题.阅读全文,根据文章内容可知,本文主要讲述了冬季缺少雪对北美的动物的影响.故选D.
点评 本文是一篇科教类阅读,题目涉及多道细节理解题,主旨大意题,句意理解题.做题时学生应仔细阅读原文,把握文章主要内容,联系文章上下文内容并结合所给选项含义,从中选出正确答案,一定要做到有理有据,切忌胡乱猜测.