托福阅读真题练习：鸟类的进化的文本+真题+答案

2017年11月06日18:31 来源：小站整理: 参与（1）阅读（51408）

摘要：托福阅读真题哪里有?大家平时备考托福阅读考试的时候都用的是哪些真题呢?除了官方真题Official的托福阅读真题以外，大家进行托福阅读的练习大多数可能都是根据老托资料或者是课外资料来练习了。那么到哪里去找到托福阅读真题来进行练习呢?

托福阅读如何进行备考?除了大量的托福词汇储备以外，大家可能最需要的就是托福阅读真题的练习。那么除了官方真题Official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100篇真题练习汇总：http://toefl.zhan.com/tfziliao63739.html

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

(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.

(D) They required fingers of equal length.

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

(A) creating

(B) meaning