本题属于包含定语从句的复合句。句子框架为:There will be television chat shows,and cars with pollution monitorsthat从句修饰pollution monitors。when引导状语从句。
2.(Line 2~3,Para.1,Passage 2)
Under modern conditions, this requires varying measures of centralized control and hence the help of specialized scientists such as economists and operational research experts.
在现代条件下,这需要不同程度的中心控制措施,从而就需要获得诸如经济学和运筹学等领域专家的协助。
本题属于简单句。句子框架是this requires various measures of centralized control andthe help of specialized scientists such as。本句比较简单。
需要注重的是:require有两个宾语。第2个宾语是the help。在时需要加上获得二字。measure 在这里是程度,幅度,限度的意思。varying measures可译成程度不同。
3.(Line 2~3,Para.1,Passage 3)
But even more important,it was the farthest that scientists had been able to look into the past,for what they were seeing were the patterns and structures that existed 15 billion years ago.更为重要的是,这是科学家们所能观测到的最遥远的过去的景象,因为他们看到的是150亿年前宇宙云的外形和结构。
本句为典型的长句。主干为主句+for引导的原因状语从句。不过,主句中含定语从句,修饰表语;状语从句中又含主语从句和修饰表语的定语从句。要害词为pattern,本句中应译为外形,形态。另外,billion到底是多少,要弄清楚。
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