题目内容
2.Lucy,whose skeleton(骨骼) was discovered in Ethiopia in 1974,died shortly after she:fell out of a tree.according to a new study published Monday in the British journal Nature.For their research,Kappelman and Dr.Richard Ketcham used a CT scanner to create more than 35,000"slices"of Lucy's skeleton.Scientists named her Lucy from the Beatles song"Lucy in the Sky with Diamonds",which was played at the camp the night of her discovery.
The following analysis of the slices showed sharp,clean breaks seen at the end of Lucy's right humerus (肱骨) are similar to bone breaks seen in victims of falls,
The researchers concluded that these and Other breaks in her skeleton show that Lucy,who is believed to have stood about 3feet 6inches and weighed about 60pounds,fell feet first and used her arms to support herself-but that the injury was too severe to have been survivable.
The researchers estimate that Lucy was going about 35miles an hour when she hit the ground after falling from a height of roughly 40feet,according to the statement.
That sounds plausible.But other scientists are doubtful."There are countless explanations for bone breaks,"Dr,Donald C,Johanson,director of the Institute of Human Origins and one of the scientists who discovered Lucy,said,"The suggestion that she fell out of a tree is largely a just-so story and therefore unprovable."
Johanson said it was more likely that Lucy's breaks occurred long after she died,saying that"elephant bones appear to have the same kind of breaks,It's unlikely they~ell out of a tree.
But the new research focused on"a small number of breaks"that are consistent with"high-energy bone-to-bone influences"and which differ from the sorts of breaks commonly seen in other collected bones.Kappelman responded in an email,"These appear to have occurred at or near the time of death."
32.What can we know about Lucy from Kappelman and Dr.Richard Ketcham's research?D
A.She got her name from a song.
B.She had more than 35,000slices.
C.She couldn't use her arms properly.
D.She made an effort to save herself.
33.What does the underlined word"plausible"in Paragraph 6probably mean?A
A.Reasonable.
B.Creative.
C.Surprising.
D.Unbelievable.
34.Which of the following would Johanson probably agree?C
A.Elephants are unlikely to die from falling.
B.Lucy got breaks at or near the time of death.
C.Other reasons for the breaks should be considered.
D.Lucy's bone breaks differ from other bone breaks.
35.What conclusion can we draw from the passage?C
A.Lucy didn't die from falling out of a tree.
B.The newly published study was meaningless.
C.The argument on how Lucy died will continue.
D.Scientists will find another way to solve the problem.
分析 本文是一篇科教类阅读,露西,1974年他的骨骼在埃塞俄比亚被发现.根据一项周一发表在英国《自然》杂志的一项研究,他是从树上摔下后死的.本文以此展开,主要讲述了专家学者在发现了Lucy坠树后不久身亡的骨骼后,对其死因的争论.
解答 32.答案:D.细节理解题.根据who is believed to have stood about 3 feet 6 inches and weighed about 60 pounds,fell feet first and used her arms to support herself-but that the injury was too severe to have been survivable.可知,Lucy本想用胳膊来支撑自己,却无能为力,可知她想过自救,故选D.
33.答案:A.词义猜测题.根据That sounds plausible.But other scientists are doubtful.上文听起来使合理的,后面But表示转折,一些科学家是持怀疑态度的.故可知是doubtful的反义词.故选A.
34.答案:C.细节理解题.根据There are countless explanations for bone breaks可知,Johanson专家认为对于Lucy的死因还有许多不同的解释,他会同意的是其他因素也应该被考虑进Lucy的死因.故选C.
35.答案:C.主旨大意题.根据文章内容"But the new research focused on"a small number of breaks"that are consistent with"high-energy bone-to-bone influences"and which differ from the sorts of breaks commonly seen in other collected bones.Kappelman responded in an email,"These appear to have occurred at or near the time of death.""可知,但是一些新的研究又出现了,可以总结出对于这件事情的争议还会继续下去.故选C.
点评 本文是一篇科教类阅读,题目涉及多道细节理解题.词义猜测题,主旨大意题.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.
A. | Having invited | B. | Having been invited | ||
C. | Have been invited | D. | Being invited |