单选题Directions: {{I}}After reading the following passage, you will
find 5 questions or unfinished statements, numbered 36 to 40. For each question
or statement there are 4 choices marked A), B), C) and D). You should make the
correct choice and mark the corresponding letter on the Answer Sheet with a
single line through the center. {{/I}} Studies of
whales in captivity (囚禁；被拘留的状态) have taught us much about their physiology (生理学)
as well as their complex social behavior. Their learning and problem-solving
skills, together with their curiosity and often eager interactions with humans,
have led some scientists to believe that whales possess a high level of
intelligence. The large brains of whales also suggest a high
intelligence. The sperm whale's (抹香鲸) brain is considerably larger than an
elephant' s brain and six times the size of a human brain. However, relative to
the rest of the body, a sperm whale's brain is only about 0.02 percent of its
body weight, while a human brain is about 2 percent. These animals tend to rely
on hearing more than vision, which explains why the visual centers of their
brains are smaller proportionally than those in humans. Another feature is the
degree of folding of the upper surface of the brain. This folding increases the
surface area and has been observed in more intelligent animals. Whale brains
generally show as much or more folding area as is seen in humans.
Complex behavior may reveal more about whale intelligence than brain
size. Perhaps the most interesting indications of whale intelligence came with
the discovery in the 1970s of whale singing. Singing is most common on the
winter mating grounds, for example in the Caribbean and Hawaii.
There is no solid evidence that the songs encode language in an intellectual
sense. The whale songs may be simply longer versions of the mating songs also
noted in birds and amphibians(两栖动物).
单选题
The best title for this passage would be ______.
A. Studies of Whales in Captivity
B. Whale's Physiology and Social Behavior
C. Study of Whales' Intelligence
D. Whale
【正确答案】
C
【答案解析】我们先看一下全篇文章的结构：第一段的重心在最后一句话“…have led some scientists to believe that whales possesses a high level of intelligence.”即“研究表明鲸具有高度的智力”。第二段的中心在于“The large brains of whales also suggest a high intelligence.”即“鲸巨大的大脑也暗示其高度的智力。”第三段的中心在于“Complex behavior may reveal more about whale intelligence than brain size.(其复杂的行为比大脑尺寸更能展示鲸的智力。)”所以，整篇文章都是围绕“鲸的智力”展开的，因此答案选C项。
单选题
Which of the following does not illustrate the intelligence about
whale?
A. Their learning and problem-solving skills, together with their curiosity
and often eager interactions with humans.
单选题
If a sperm whale's weight is thirty tons, then its brain weighs ______
kilogram.
A. 0.6
B. 6
C. 150
D. 15
【正确答案】
B
【答案解析】根据材料中“However，relative to the rest of the body，a sperm whale's brain is only about 0.02 percent of its body weight…(然而，相对于身体而言，抹香鲸的大脑占据身体总重量的0.02%)”这样如果抹香鲸重30吨，其大脑=30×0.02%×1000=6(千克)。所以B项正确。
单选题
The sperm whale's visual centers of their brains are smaller
proportionally than those in humans, this can explain why ______.
A. their eyesight is better than hearing
B. whale brains generally show as much or more folding area as is seen in
humans
C. complex behavior may reveal more about whale intelligence than brain
size
D. this folding increases the surface area and has been observed in more
intelligent animals
【正确答案】
A
【答案解析】根据文章中“These animals tend to rely on hearing more than vision，which explains why the visual centers of their brains are smaller than proportionally than those in humans.”这一句话得出。
单选题
"There is no solid evidence that the songs encode language in an
intellectual sense." in the sentence "solid" means