[問題]GWD19-Q33 to Q36:

GMAT 考的是閱讀....閱讀....還是閱讀....

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[問題]GWD19-Q33 to Q36:

帖子Ivan » 2006-10-16 16:36

Q33 to Q36:
Scientists studying the physiology
of dinosaurs have long debated whether
dinosaurs were warm- or cold-blooded.
Line Those who suspect they were warm-
(5) blooded point out that dinosaur bone
is generally fibro-lamellar in nature;
because fibro-lamellar bone is formed
quickly, the bone fibrils, or filaments, are
laid down haphazardly. Consistent with
(10) their rapid growth rate, warm-blooded
animals, such as birds and mammals,
tend to produce fibro-lamellar bone,
whereas reptiles, which are slow-
growing and cold-blooded, generally
(15) produce bone in which fibrils are laid
down parallel to each other. Moreover,
like the bone of birds and mammals,
dinosaur bone tends to be highly
vascularized, or filled with blood
(20) vessels. These characteristics,
first recognized in the 1930’s,
were documented in the 1960’s by
de Ricqlès, who found highly vascular-
ized, fibro-lamellar bone in several
(25) groups of dinosaurs. In the 1970’s,
Bakker cited these characteristics as
evidence for the warm-bloodedness of
dinosaurs. Although de Ricqlès urged
caution, arguing for an intermediate type
(30) of dinosaur physiology, a generation of
paleontologists has come to believe
that dinosaur bone is mammalianlike.

In the 1980’s, however, Bakker’s
contention began to be questioned, as a
(35) number of scientists found growth rings
in the bones of various dinosaurs that
are much like those in modern reptiles.
Bone growth in reptiles is periodic in
nature, producing a series of concentric
(40) rings in the bone, not unlike the growth
rings of a tree. Recently, Chinsamy
investigated the bones of two dino-
saurs from the early Jurassic period
(208-187 million years ago), and found
(45) that these bones also had growth rings;
however, they were also partially fibro-
lamellar in nature. Chinsamy’s work
raises a question central to the debate
over dinosaur physiology: did dino-
(50) saurs form fibro-lamellar bone because
of an innately high metabolic rate asso-
ciated with warm-bloodedness or
because of periods of unusually fast
growth that occurred under favorable
(55) environmental conditions? (Although
modern reptiles generally do not form
fibro-lamellar bone, juvenile crocodiles
raised under optimal environmental
conditions do.) This question remains
(60) unanswered; indeed, taking all the evi-
dence into account, one cannot make
a definitive statement about dinosaur
physiology on the basis of dinosaur
bone. It may be that dinosaurs had an
(65) intermediate pattern of bone structure
because their physiology was neither
typically reptilian, mammalian, nor avian.
--------------------------------------------------------------------------------
Q33:
The author of the passage would be most likely to agree that the “caution” (line 29) urged by de Ricqlès regarding claims about dinosaur physiology was

A. unjustified by the evidence available to de Ricqlès
B. unnecessary, given the work done by Bakker and his followers
C. indicative of the prevailing scientific opinion at the time
D. warranted, given certain subsequent findings of other scientists
E. influential in the recent work of Chinsamy

The correct answer:(D), BUT I think that (A) be right <---why?




Q34:
The primary purpose of the passage is to

A. discuss the influence on other scientists of Bakker’s argument concerning the warm-bloodedness of dinosaurs
B. provide evidence that supports the claim that dinosaurs were cold-blooded
C. challenge the contention that dinosaur bone tissue is innately fibro-lamellar
D. evaluate the claim that dinosaur bone tissue provides evidence for the warm-bloodedness of dinosaurs
E. resolve the disagreement between de Ricqlès and Bakker over the nature of dinosaur physiology

The correct answer:(D), BUT I think that (E) be right <---why?[tab]

Help me ..thanks
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Ivan
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帖子Charleneshen » 2006-10-17 22:07

很久沒看這篇文章了,看看是不是能幫到你。
Q33︰關於這種題目要看選項的首字,由於文章裡Ricqle給其他學者的態度是偏向「建議」方面的,所以有關於負面的選項都可以不看了,刪除AB。再看CDE,CE主要都是講R先生是主流,可是文章最後有提到R先生並不是主流,所以答案為D。

Q34:主題題也是看首字選項先刪除不合適的。本篇文章一開始先講骨頭結構對於恐龍的冷熱血觀點討論,然後又舉出R先生的說法,最後提出R給其他學者的影響。所以本文主題是屬於「探討評論類」,答案只有AD的首字有這種味道。那我們來看A,A說到Backker對於其他學者的影響,這個只出現在文章末段,所以不能作為全文縱貫主題,刪掉。答案D,評論骨頭對於冷熱血觀點的影響-->符合我剛剛歸納出來的主題,標準答案。
我欲乘風歸去,唯恐瓊樓玉宇,高處不勝寒,起舞弄清影,何似在人間。
MBA Candidate, Class of 2009
Carnegie Mellon University, Tepper School of Business
http://www.wretch.cc/blog/dameinui
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Charleneshen
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