The surgeonfish (刺尾鱼) is an attractive reef fish that is poisonous.Scientists believe that the world's seas hold some 1，200 different surgeonfish species and think that they injure about 50，000 people per year.But the surgeonfish poison can also bring great benefit—they are useful in the development of new drugs.

　　【语篇解读】　本文介绍了5种危险的海洋生物。

　　1．The underlined phrase

　　“break cover”

　　in Paragraph 2 probably means ________．

　　A．jump out of

　　B．break away from

　　C．get away from

　　D．go back to

　　答案　A　

　　2．How many attacks on humans do great white sharks do every year?

　　A．About 26.

　　B．About 45.

　　C．About 60.

　　D．About 75.

　　答案　B　

　　3．It can be known from the passage that ________．

　　A．the saltwater crocodiles are gentle and never hurt people

　　B．the sea anemone lives near the surface of the sea

　　C．the great white shark is the largest fish in the world

　　D．the needlefish live in the sea all around the world

　　答案　C　

　　4．Which of the following can be used to benefit human society?

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