4. The ideas attributed to T. H. Huxley（第四段） in the passage suggest that he would most likely agree with which of the following statements?直接事实题ACD无，E反
(A) An animal’s brain size没提到过 has little bearing on its ability to master complex behaviors.
(B) An animal’s appearance is often influenced by environmental requirements and physical capabilities.
(C) Animals within a given family科，没提到过 group are unlikely to change their appearance dramatically over a period of time.
(D) The origin of flight in vertebrates was an accidental没提到过 development rather than the outcome of specialization or adaptation.（B）
(E) The pterosaurs should be classified as birds, not reptiles.和文中的意思相反
5. It can be inferred from the passage that which of the following is characteristic of the pterosaurs?直接事实题（无定位）BCDE无
(A) They were unable to fold*5A their wings when not in use.
(B) They hung upside down from branches as bats do before flight.没提到过
(C) They flew in order to capture prey. 没提到过
(D) They were an early stage in the evolution of the birds. 没提到过（A）
(E) They lived primarily in a forest-like habitat. 没提到过
6. Which of the following best describes the organization of the last paragraph of the passage?主题题（写法性）
(A) New evidence is introduced to support a traditional point of view.
(B) Three explanations for a phenomenon are presented, and each is disputed by means of specific information.提出三个理论，三个都打倒
(C) Three hypotheses are outlined, and evidence supporting each is given.
(D) Recent discoveries are described, and their implications for future study are projected.（B）
(E) A summary of the material in the preceding paragraphs is presented, and conclusions are drawn.
7. It can be inferred from the passage that some scientists（可能对，也可能错，因为文中就有些科学家错了） believe that pterosaurs
(A) lived near large bodies of water*7A
(B) had sharp teeth for tearing food
(C) were attacked and eaten by larger reptiles
(D) had longer tails than many birds（A）
(E) consumed twice their weight daily to maintain their body temperature
责任编辑：sealion1986
