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1.& &&T-4-Q5-Q7恐龙进化成鸟Although many lines of evidence indicate that birds evolved from ground-dwelling theropod dinosaurs, some scientists remain unconvinced. They argue that theropods (5) &appeared too late to have given rise to birds, noting that Archaeopteryx lithographica – the oldest known bird – appears in the fossil record about 150 million years ago, where-as the fossil remains of various nonavian (10) maniraptor theropods – the closest known relatives of birds – date only to about 115 million years ago. But investigators have now uncovered bones that evidently belong to nonavian maniraptors dating to the time of (15) Archaeopteryx. In any case, failure to findfossils of a predicted kind does not rule outtheir existence in an undiscovered deposit.Skeptics also argue that the fused clavicles(the “wishbone”) of birds differ from the(20) unfused clavicles of theropods. Thisobjection was reasonable when only earlytheropod clavicles had been discovered,but fossilized theropod clavicles that look just like the wishbone of Archaeopteryx(25) have now been unearthed. Finally, somescientists argue that the complex lungs ofbirds could not have evolved from theropodlungs, an assertion that cannot be supportedor falsified at the moment, because no fossil(30) lungs are preserved in the paleontologicalrecord.T-4-Q5The primary purpose of the passage is toA.& &&compare the development of two hypotheses concerning the evolutionary origin of birdsB.& &&suggest revisions to the standard theory of the evolutionary history of birdsC.& &&evaluate the usefulness of fossil evidence in determining the evolutionary history of birdsD.& &&challenge the theory that birds evolved from ground-dwelling theropod dinosaursE.& &&respond to criticisms of the theory that birds evolved from ground-dwelling theropod dinosaursT-4-Q6In the context of the passage, the phrase “fossils of a predicted kind”(line 16) most likely refers to which of the following?A.& &&Theropod fossils with fused claviclesB.& &&Theropod fossils that are similar in structure to Archaeopteryx fossilsC.& &&Theropod fossils dating back more than 150 million yearsD.& &&Fossils indicating the structure of theropod lungsE.& &&Fossils indicating the structure of Archaeopteryx lungsT-4-Q7Which of the following is mentioned in the passage as an argument made by scientists who are unconvinced that birds evolved from theropod dinosaurs?A.& &&There are no known theropod dinosaur fossils dating from a period after the time of Archaeopteryx.B.& &&There are no known theropod dinosaur fossils that indicate the structure of those dinosaurs’ lungs.C.& &&Theropod dinosaurs appear in the fossil record about 150 million years ago.D.& &&Theropod dinosaurs did not have fused clavicles.E.& &&Theropod dinosaurs had certain bones that look just like those of Archaeopteryx.
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答案是ECE T-4-Q6 T-4-Q7这两个不明白
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第七题怎么觉得是D啊？
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But investigators have now uncovered bones that evidently belong to nonavian maniraptors dating to the time of (15) Archaeopteryx. In any case, failure to findfossils of a predicted kind does not rule outtheir existence in an undiscovered deposit.第六题，之前说有个时间差，一个在115以前一个150以前，所以后来找到化bone可以解释这个时间差，所以fossils of a predicted kind does指的就是找到的那个和A在同时期存在的骨头，就是C的意思了
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第七题怎么觉得是D啊？-- by 会员 gracezz ( 11:35:20)
为什么是D?
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题目问的是scientists who are unconvinced...的观点，根据原文中skeptics also argue that the fused....unfused clavicles of the theropods.就能说明D是正确的。
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Q7有点迷惑性，原文对应的直接的人物不是25行的some scientists而是18行的skeptics，主要是读清题干，选项必须是质疑者的直接主观argument（D）而不是以客观的角度描述事实（B）所以选D
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T-4-Q5The primary purpose of the passage is toA. & &compare the development of two hypotheses concerning the evolutionary origin of birdsB. & &suggest revisions to the standard theory of the evolutionary history of birdsC. & &evaluate the usefulness of fossil evidence in determining the evolutionary history of birdsD. & &challenge the theory that birds evolved from ground-dwelling theropod dinosaursE. & &respond to criticisms of the theory that birds evolved from ground-dwelling theropod dinosaurs我选了D，D怎么错了
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坚决认为7正确答案是D。E明显是错误。整片文章作者的观点是倾向于传统观点的。反对者有三个理由，而每一个理由后面作者都讲出了他们的不可靠性。选项E在第二个理由后面：反对者说鸟和兽脚类恐龙的某种骨头不一样。作者先同意说初期发现确实如此，但是现在又有了新的E的发现来反驳反对者。所以E不是反对者的观点，而是作者用来反对反驳者的。反观D，文中反对者说兽脚类unfused。那兽脚类确实不是fused的咯，鸟才是fused~
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我觉得第7题应该选E，因为那个fused cla什么的look like the wishbone 被unearthed，但是它只是像，不能说就是，所以unconvinced，个人理解
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All Rights Reserved.如果GMAT阅读题做题的时候感觉时间紧张,该怎么办呢?
GMAT也需要较大的词汇量,大概是左右.
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