题目内容
5.Next fall when you see geese heading south for the winter or flying in"V"formation (队形),you might consider what science has discovered as to why they fly that way.As each bird spreads its wings,it creates an uplift (上升力) for bird immediately following.By flying in"V"formation the whole flock (鸟群) adds at least 71% greater flying range,than if each bird flies on its own.People who share a common direction arid sense of community can get where they are going more quickly and easily because they are traveling on the thrust (推动力) of one another.
When a goose falls out of the formation,it suddenly feels the drag and resistance of trying to go it alone and quickly gets back into formation to take advantage of the lifting power of the bird in front.If we have as much sense as a goose,we will stay in formation with those who are headed the same way we are.When the head goose gets tired,it flies backwards and another goose flies point.It is sensible to take turns doing demanding jobs,whether it is with people or with geese flying south.
Geese honk (雁叫) from behind to encourage those up front to keep up their speed.What do we say when we honk from behind?
Finally and this is important,when a goose gets sick or is wounded by gunshots,and falls out of formation,two other geese fall out with that goose and follow it down to lend help and protection.They stay with the fallen goose until it is able to fly or until it dies,and only then do they launch out on their own,or with another formation to catch up with their group.If we have the sense of a goose,we will stand by each other like that.
25.The first three paragraphs chiefly deal withC.
A.scientific discovery about geese.
B.the importance of flight formation.
C.the advantages of"V"formation.
D.the reasons for geese's flight.
26.The phrase which can best replace"stand by"in the last sentence is"B".
A.be against.B.support.C.sit by.D.obey.
27.What does the author want us to learn from the geese?A
A.Teamwork.B.Sympathy.C.Kindness.D.Intelligence.
分析 本文是一篇说明文.介绍了大雁南飞习惯排成V字行队伍,关于这个课题,科学家作了调查研究,发现大雁的飞行方向与其群体感和群体方向有关.
解答 25.C 段落大意题.根据第二段People who share a common direction arid sense of community can get where they are going more quickly and easily because they are traveling on the thrust (推动力) of one another可知前三段主要论述大雁V字形飞行的优势;故选C.
26.B 词义猜测题.根据最后一段If we have the sense of a goose,we will stand by each other like that可知如果我们有意识的鹅,我们将站着像对方一样;意为支持;故选B.
27.A 推理判断题.根据文章They stay with the fallen goose until it is able to fly or until it dies,and only then do they launch out on their own,or with another formation to catch up with their group可知作者希望我们从大雁身上学到团队合作;故选A.
点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
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