15.North American black bears are shy animals.They are fearful by nature,and will usually run away if they see or hear people.Because if can be difficult for scientists to learn about these animals.
In order to study black bears,researchers from New Jersey,US,catch bears and use drugs to help them go to sleep.Researchers then work out the size and the weight of the bear,take blood to test for diseases,remove a tooth and take it to the lab to find out its age.From these studies,researchers want to find out how many bears live in New Jersey,how long they live,and how many babies they produce.
But in Minnesota,USA,researchers study bears that are completely awake.The bears know the researcher's vices and they are not afraid of the research team.With the help of a few grapes to keep the bears busy,researchers can touch them to check their hearts,look at their teeth,and do other jobs.Researchers can also walk or sit with ears for hours and make videos to learn about their everyday lives.
In both places,the main purpose is the same-to make sure there is a healthy population of black bears.But the research methods and the kinds of information that researchers are able to collect are quite different.
56.In the first paragraph,we can learn that North American black bears areD.
A.easy for scientists to study
B.lazy and strong animals
C not afraid of people
D.shy and fearful animals
57.Researchers from New Jersey can know the following things exceptD.
A.the size of the bear
B.the age of the bear
C.the weight of the bear
D.the name of the bear
58.Which of the following may NOT be included in the Minnesota studies?B
A.Check bear'hearts.
B.Communicate with bears.
C.Look at bears'teeth.
D.Walk or sit with bears.
59.In the Minnesota studies,researchersD.
A.can never get close to the bears
B.study the bears while they are sleep
C.use grapes to make the bears full
D.learn a lot about the bear'everyday lives
60.What do the two studies have in common (共同点)?B
A.Research places.
B.The main purpose.
C.Research methods.
D.Collected information.
分析 本文介绍北美黑熊,及这种熊的生活习性.北美黑熊是一个害羞的动物,天性胆怯,看见或听见有人的时候会逃跑.
在研究过程中,研究人员考察黑熊的大小、体重,化验血以检测疾病,取下一颗牙齿并拿到实验室以此推测他们的年龄.
除此之外,研究者们还可以和这些熊一起行走闲坐数小时并制作录像来理解它们每天的生活.
希望通过研究了解在新泽西的北美熊数量、它们的存活时间和诞生宝宝的数量.
解答 56.D.细节理解题.根据North American back bears are shy animals.They are fearful bynature,and will usuallyrun away if they see or hear people.可知,北美黑熊天生害羞、胆小,故选D.
57.D.细节理解题.根据Researchers then work out the size and the weight of the bear,take blood to test for diseases,remove a tooth and take it to the lab to find out its age.",可知在研究过程中,研究人员考察黑熊的大小、体重,化验血以检测疾病,取下一颗牙齿并拿到实验室以此推测他们的年龄.这里没有提及名字.故选D.
58.B.细节理解题.根据根据第二段第二句Researchers then work out the size and the weight of the bear…和第二段最后一句…and how many babies they produce.可知,在新泽西州 的研究 包括弄 清黑熊 的年龄、体 重、健康状况、数量、寿命和产崽数量,而它们的沟通方式不包括在内,故选B.
59.D.细节理解题.根据Researchers can also walk or sit with bears for hours and make videos to learn about their everyday lives."可知调查者们还可以和这些熊一起行走闲坐数小时并制作录像来理解它们每天的生活."故选D.
60.B.细节理解题.根据最后一段第一句In both places,the main purpose is the same-to make sure there is a healthy population of black bears.可知,两项研究的主要目的是一致的,都是为了确保可以得到一个健康数量的黑熊."故选B.
点评 对于阅读表达题,一定要记得首先通读全文,了解文章大意,然后再根据文章关键词,关键句,掌握细节问题,并进行推理判断,再去回答具体的问题.