老托福阅读试题及答案：PASSAGE16.docx老托福阅读试题及答案： PASSAGE16 老托福阅读试题及答案： 16 The first flying vertebrates were true reptiles in which one of the fingerseservation of these fossils, they might well have been classified as dinosaurs. They have the skull and teeth of a reptile as well as a bony tail, but in the line-grained limestone in which these fossils occur there are delicate impressions of feathers and fine details of bone structure that make it clear that Archaeoptery 某 was a bird. All birds living today, from the great condors of the Andes to the tiniest wrens, trace their origin back to the Mesozoic dinosaurs. What does the passage mainly discuss? (A) Characteristics of pterosaur wings (B) The discovery of fossil remains of Archaeoptery 某 Reasons for the e某 tinction of early flying vertebrates The development of flight in reptiles and birds Which of the following is true of early reptile wings? (A) They evolved from strong limb muscles. (B) They consisted of an e 某 tension of skin. They connected the front and back limbs. They required fingers of equal length. The word "literally" in line 3 is closest in meaning to (A) creating (B) meaning (C) related to (D) simplified It can be inferred from the passage that birds were probably dominant in the skies (A) in the early Triassic period (B) before the appearance of pterosaurs (C) after the de
