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托福阅读专项练习练习篇

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    托福阅读如何进行备考?除了大量的托福词汇储备以外,大家可能较需要的就是托福阅读真题的练习。那么除了TPO你还有哪些托福阅读真题进行练习呢?今天小编就为大家整理了托福阅读真题100篇:鸟类的进化的文本、题目以及答案,希望可以帮助到大家。


托福阅读专项练习


托福阅读文本:


The first flying vertebrates were true reptiles in which one of the fingers of the front limbs became very elongated, providing support for a flap of stretched skin that served as a wing. These were the pterosaurs, literally the "winged lizards." The earliest pterosaurs arose near the end of the Triassic period of the Mesozoic Era, some 70 million years before the first known fossils of true birds occur, and they presumably dominated the skies until they were eventually displaced by birds. Like the dinosaurs, some the pterosaurs became gigantic; the largest fossil discovered is of an individual that had a wingspan of 50 feet or more, larger than many airplanes. These flying reptiles had large, tooth-filled jaws, but their bodies were small and probably without the necessary powerful muscles for sustained wing movement. They must have been expert gliders,not skillful fliers, relying on wind power for their locomotion.


Birds, despite sharing common reptilian ancestors with pterosaurs, evolved quite separately and have been much more successful in their dominance of the air. They are an example of a common theme in evolution, the more or less parallel development of different types of body structure and function for the same reason — in this case, for flight. Although the fossil record, as always, is not complete enough to determine definitively the evolutionary lineage of the birds or in as much detail as one would like, it is better in this case than for many other animal groups. That is because of the unusual preservation in a limestone quarry in southern Germany of Archaeopteryx, a fossil that many have called the link between dinosaurs and birds. Indeed, had it not been for the superb preservation 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 Archaeopteryx was a bird. All birds living today, from the great condors of theAndes to the tiniest wrens, trace their origin back to the Mesozoic dinosaurs.


托福阅读题目:


1. What does the passage mainly discuss?


(A) Characteristics of pterosaur wings


(B) The discovery of fossil remains of Archaeopteryx


(C) Reasons for the extinction of early flying vertebrates


(D) The development of flight in reptiles and birds


2. Which of the following is true of early reptile wings?


(A) They evolved from strong limb muscles.


(B) They consisted of an extension of skin.


(C) They connected the front and back limbs.


(D) They required fingers of equal length.


3. The word "literally" in line 3 is closest in meaning to


(A) creating


(B) meaning


(C) related to


(D) simplified


4. 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 decline of pterosaurs


(D) before dinosaurs could be found on land.


5. The author mentions airplanes in line 8 in order to


(A) illustrate the size of wingspans in some pterosaurs


(B) compare the energy needs of dinosaurs with those of modern machines


(C) demonstrate the differences between mechanized flight and animal flight


(D) establish the practical applications of the study of fossils


6. The word "They" in line 10 refers to


(A) powerful muscles


(B) bodies


(C) jaws


(D) flying reptiles


7.According to the passage , pterosaurs were probably "not skillful fliers" (lines 10-11) because


(A) of their limited wingspan


(B) of their disproportionately large bodies


(C) they lacked muscles needed for extended flight


(D) climate conditions of the time provided insufficient wind power


8. In paragraph 2, the author discusses the development of flight in birds as resulting from


(A) a similarity in body structure to pterosaurs


(B) an evolution from pterosaurs


(C) the dominance of birds and pterosaurs over land animals


(D) a separate but parallel development process to that of pterosaurs


9. The word "classified" in line 21 is closest in meaning to


(A) perfected


(B) replaced


(C) categorized


(D) protected


10. Which of the following helped researchers determine thatArchaeopteryx was not a dinosaur?


(A) Its tail


(B) Its teeth


(C) The shape of its skull


(D) Details of its bone structure


11. What is the significance of the discovery that was made in southern Germany?


(A) It is thought to demonstrate that birds evolved from dinosaurs.


(B) It is proof that the climate and soils of Europe have changed over time.


(C) It suggests that dinosaurs were dominant in areas rich in limestone.


(D) It supports the theory thatArchaeopteryx was a powerful dinosaur.


托福阅读答案:


DBBCADCDCDA


以上就是小编为大家整理的托福阅读100篇真题练习:鸟类的进化的文本、题目以及答案,大家在托福阅读考试进行备考的过程当中也可以拿这些题目来进行练习,相信对于你的托福阅读考试成绩进步会很有帮助。较后,小编预祝大家托福考试能取得理想的成绩。


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