2.Lucy,whose skeleton(骨骼) was discovered in Ethiopia in 1974,died shortly after she:fell out of a tree.a(chǎn)ccording 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 本文是一篇科教類閱讀,露西,1974年他的骨骼在埃塞俄比亞被發(fā)現(xiàn).根據(jù)一項周一發(fā)表在英國《自然》雜志的一項研究,他是從樹上摔下后死的.本文以此展開,主要講述了專家學者在發(fā)現(xiàn)了Lucy墜樹后不久身亡的骨骼后,對其死因的爭論.
解答 32.答案:D.細節(jié)理解題.根據(jù)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本想用胳膊來支撐自己,卻無能為力,可知她想過自救,故選D.
33.答案:A.詞義猜測題.根據(jù)That sounds plausible.But other scientists are doubtful.上文聽起來使合理的,后面But表示轉(zhuǎn)折,一些科學家是持懷疑態(tài)度的.故可知是doubtful的反義詞.故選A.
34.答案:C.細節(jié)理解題.根據(jù)There are countless explanations for bone breaks可知,Johanson專家認為對于Lucy的死因還有許多不同的解釋,他會同意的是其他因素也應該被考慮進Lucy的死因.故選C.
35.答案:C.主旨大意題.根據(jù)文章內(nèi)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現(xiàn)了,可以總結(jié)出對于這件事情的爭議還會繼續(xù)下去.故選C.
點評 本文是一篇科教類閱讀,題目涉及多道細節(jié)理解題.詞義猜測題,主旨大意題.做題時學生應仔細閱讀原文,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.