[求助] 求助tpo15阅读的几道题 [复制链接]

妮妮宝宝乖
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电梯直达

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发表于 2011-8-18 16:54:35 |只看该作者 |倒序浏览

A warm-blooded turtle 这边文章真是错惨了其中有一道题

Paragraph 5: Leatherbacks do not have blubber, but they do have a reptilian
equivalent: thick, oil-saturated skin, with a layer of fibrous, fatty tissue just beneath.
Insulation protects the leatherback everywhere but on its head and flippers. Because the
flippers are comparatively thin and blade like, they are the one part of the leatherback
that is likely to become chilled. There is not much that the turtle can do about this
without compromising the aerodynamic shape of the flipper. The problem is that as
blood flows through the turtle's flippers, it risks losing enough heat to lower the animal's
central body temperature when it returns. The solution is to allow the flippers to cool
down without drawing heat away from the rest of the turtle's body. The leatherback
accomplishes this by arranging the blood vessels in the base of as flipper into a
countercurrent exchange system.
6. The word “it” in paragraph 4 refers to
○ the problem
○ blood
○ the turtle
○ body temperature
为甚么选B呀？谁能帮我翻译一下The problem is that as blood flows through the turtle's flippers, it risks losing enough heat to lower the animal's central body temperature when it returns.？谢谢谢谢
14 Answer choices
○1. Even though they swim into cold ocean waters, leatherbacks maintain their body heat in
much the same way as sea turtles in warm southern oceans do.
○2. The leatherback turtle uses a countercurrent exchange system in order to keep the flippers
Proofread By Miffy and Alex Page: 440 / 493
from drawing heat away from the rest of the body.
○3. The shape of the leatherback turtle's flippers is especially important in maintaining heat in
extremely cold northern waters.
○4. The leatherback turtle is able to maintain body heat through sheer size.-----------------为什么要选这个选项呢？？sheer size是虾米意思呢？
○5. Leatherbacks have an insulating layer that can be considered the reptilian version of
blubber.
○6. Young leatherbacks often do not survive to adulthood because they are not able to switch
from a cold-blooded way of life to a warm-blooded one quickly enough.

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沙发

发表于 2011-8-18 17:32:12 |只看该作者

第六题这道指代题挺简单的，细心点去体会就会明白。The problem is that as blood flows through the turtle's flippers, it risks losing enough heat to lower the animal's central body temperature when it returns. 问题在于血液留过海龟的脚之后，它是冒着会降低海龟的内在体温的风险流回来的。

14题这个选项我记得是在说小海龟和成年海龟的时候有提到过，好像是说小海龟不能做到大海龟的这个程度，就是因为这种龟类越大保存体温越容易

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