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托福听力TPO30原题答案解析Lecture2 paleontology

2014-03-24 13:16| 来源:环球托福

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今天,环球托福为大家带来了托福听力TPO30原题答案解析Lecture2 paleontology,大家可以配合托福听力TPO30原题答案解析Lecture1一起来读学习。以提高学习效率,环球托福祝你早日成功!

托福听力TPO30原题

托福听力TPO30原题答案解析Lecture2 paleontology

Oviraptor

What does the professor mainly discuss?
A. How the parenting behavior of Oviraptors may have differed from that of other dinosaurs
B.Evidence that parenting behavior in birds may have originated with dinosaurs
C.Physical traits shared by dinosaurs, crocodiles, and birds
D.The changing attitudes of the public toward dinosaurs
答案:B
解析: We will be looking at dinosaurs parenting behavior. 与这个 Topic Sentence相关的只有B项。
 
 
 
What is the professor's attitude toward the name "Obiraptor" ? Click on 2 answers.
A. It accurately represents the behavior of the dinosaur
B.It resulted from an incorrect translation of the original Latin term
C.It was based on a misunderstanding of the fossil evidence
D.It influenced popular attitudes toward dinosaurs
答案:CD
解析: He assumed the dinosaur was stealing the eggs...... Leave generally negative influence on such dinosaurs......the oviraptor was probably taking care of the eggs.

According to the professor, what behavior is very rare among reptiles?
A.Parenting of the young by males
B.Laying eggs in a nest
C.Returning to the same nest site year after year
D.Stealing eggs from the nests of other reptiles
答案:A
解析:Well, exclusive care by the male parent is much less common, but it dose occur......males contribute to parental care in fewer than 5% ...... It is even less frequent on reptiles. 说明有父亲看护孩子很少见。
 
 
 
What does the professor imply about crocodiles ?
A.They provide fewer clues about dinosaur nesting behavior than birds do.
B.They share many behavioral characteristic with birds like the ostrich and kiwi.
C.They have larger clutch volumes than most dinosaurs had.
D.The female and the male work together to guard their nest.
答案:A
解析:教授推测鸟类的行为是源于恐龙,而鳄鱼是只有females看护巢穴,所以鸟类与恐龙相似之处更多。
 
 
 
What is the function of the spongy tissue in the bones of a female bird?
A.In makes the bird more comfortable while sitting on her eggs for long periods of time.
B.In enables female birds to lay more eggs.
C.It strengthens the bird's bones just before she lays her eggs.
D.It serves as a source of calcium for eggshells.
答案:D
解析:This spongy tissues serves as a source of calcium for eggshell formation.
 
 
 
What did researchers conclude after analyzing fossilized dinosaur bones found near nests?
A.Many dinosaurs died before they became adults.
B.Male dinosaurs produced a spongy layer of bone.
C.Male dinosaurs probably took care of the eggs.
D.Female dinosaurs seldom went far from their nests.
答案:C
解析:教授说巢边的恐龙骨化石并没有 spongy tissue, 也就是大部分是males。由此推测males可能在take care babies  

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