1.They1 want2 to take samples from the Jezreel crater3 which they suspect may once have been a lake4 to search for signs of primitive life5.
重点词汇词组
①take samples/a sample from 从...采集样本
eg.Now we'll take a sample from a vein.
现在我们来取静脉血样.
②crater 火山口;弹坑
crater lake 火山湖(火山口形成的深湖)
eg.Crater Lake National Park covers 740 square kilometers.
火山湖国家公园占地740平方公里。
③primitive 原始的;简单的,粗糙的
primitive society
eg.The constitution of a primitive society is not necessarily simple.
原始社会的结构未必简单。
长难句解析
解:1主语,2谓语,3宾语,4定语从句,5目的状语
析:3是动词不定式作want的宾语;4是which引导的定语从句,用来修饰Jezreel crater;5是动词不定式作目的状语。
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