GWD-9-Q33 貌似没人问过

10gmat

原文：

Scientists studying the physiology of dinosaurs have long debated whether dinosaurs were warm- or cold-blooded. Those who suspect they were warm-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 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 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 vessels. These characteristics, first recognized in the 1930’s, were documented in the 1960’s by de Ricqlès, who found highly vascularized, fibro-lamellar bone in several 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 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 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 rings in the bone, not unlike the growth rings of a tree. Recently, Chinsamy investigated the bones of two dinosaurs from the early Jurassic period (208-187 million years ago), and found 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 dinosaurs form fibro-lamellar bone because of an innately high metabolic rate associated with warm-bloodedness or because of periods of unusually fast growth that occurred under favorable environmental conditions? (Although modern reptiles generally do not form fibro-lamellar bone, juvenile crocodilesraised under optimal environmental conditions do.) This question remains unanswered; indeed, taking all the evidence into account, one cannot make a definitive statement about dinosaur physiology on the basis of dinosaur bone. It may be that dinosaurs had an intermediate pattern of bone structure because their physiology was neither typically reptilian, mammalian, nor avian.

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

D为正确答案，A错在哪里呢？
文章最后一段不是说remain unanswered吗？尽管后面有提到intermediate的事情，但是也是用的may be啊，怎么能是D中的warrented呢？

falconzx

我也错了这题，后来再看题目以后我认为题目的意思是说“caution”本身的性质，而非caution的内容是否warranted。

tubai

顶LS~~~

dayuyunhai

科学家长期争论，恐龙是热血还是冷血。1970年Bakker引用恐龙的骨骼特点作为是热血的证据。
虽然Ricqlès提出了要谨慎论断，但一代的科学家都相信了Bakker的说法。
然而，1980年，Bakker的说法又遭到质疑。
至今，这个问题也没有确定的答案。
●问题：作者对Ricqlès提出的要‘谨慎论断’的态度。
●答案：根据1980年后，Bakker的说法又遭到质疑。所以，Ricqlès提出要‘谨慎论断’，是完全正确的。

Jimmyzhang2012

the caution was warranted 担心是有道理的（不是多余的）

大笑丸子

楼上一句就讲明白了～哈哈～

sunlight841206

D warranted, given certain subsequent findings of other scientists

Although de Ricqlès urged caution, arguing for an intermediate type of dinosaur physiology, a generation of paleontologists has come to believe that dinosaur bone is mammalianlike.

caution是在subsequent findings之前提出的，D为什么还会对呢？我选择A的，de Ricqlès的意思应该是他根据自己手上有限的证据，不能妄下结论！

会飞的阿牛

这道题原来也错选A，后仔细审题后发现题目问的是作者最会同意R提出的caution是怎样，是问作者的观点，不是问caution的中claims：因为regarding claims。。都是修饰caution，that 的引导的宾语从句其实就是caution was。。
A选项我看成问R 的caution是认为claimes was unjustified。。但是主谓不一致啊。。