A small blood-sucking creature has been discovered in the Caribbean waters off the Virgin Islands.The creature may help increase scientists’ understanding of how disease is passed among marine animals.This discovery will lead to more information about parasites(寄生生物)and the effect they can have on marine environments.
【语篇导读】本文属于科普类文章,介绍了一种检测海洋的科学方法:the Ocean Health Index。
1.The purpose of the text is to .
A.introduce a scientific system to monitor the ocean
B.talk about the character of the ocean
C.present the importance of the ocean
D.introduce a rich source for new medicines
答案:A
解析:推理判断题。文章的目的是介绍一种检测海洋的体系。由第一段“A new system has been developed to measure the health of the world’s oceans.”得出答案为A项。
2.The Ocean Health Index can be described as .
A.a protector of the ocean
B.the ocean’s doctor
C.an observer of the ocean
D.the ocean’s mirror
答案:B
解析:细节理解题。该系统能检测出海洋出了什么问题、人类该如何应对,就像是海洋的医生一样。由第一段“The index is designed to tell if anything is wrong with the oceans and,if so,what can be done about it.”得出。
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