The selection is mainly about _____.
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1 .The author’s attitude towards trade protectionism is obviously______.
A supportive B cynical C critical D enthusiastic
2 .The last word “megafauna” in Paragraph 2 most probably means _____.
A birds B plants C big animals D small animals
3 .Genyornis was vulnerable to human hunting because it was _____.
A a delicacy B very weak C very small in size D clumsy
4 .How many models have been put forward for the extinction of Genyornis?
A One. B Two. C Three. D Four.
5 .That Australia experienced mild cooling and the Americas rapid warming suggests that _____.
A the climatic conditions were unfit for Genyornis to live B Genyornis were highly adaptable to different climatic conditions C The two climatic conditions were both bad for Genyornis D The climatic conditions had nothing to do with the extinction of Genyornis
7 .The purpose of the author in writing the text is to _______.
A outline the geographical features of the Bosporus B explain why the Black Sea was a freshwater lake C describe a joint Russian-US expedition to the Black Sea D provide new evidence that a rising Mediterranean suddenly refilled the lowered Black Sea
8 .By referring to the report of the expedition team, the author shows that _______.
A the Black Sea was gradually refilled 10,000 years ago. B a wedge of sediment was found at the bottom of the Black Sea C the hard-rock basement beneath the sediments filling the Bosporus channel lies at a depth of nearly 35 meters D a thin and uniform dusting of sediment with a geologically instant...
9 .“Brackish” water (Line 1, Para.1 ) is not pure because it is _______.
A slightly salty B unclear C polluted D not fresh
10 .The text is most likely a part of a _______.
A journalist interview B book review C scientific report D narrative story
