The idea that some groups of people may be more intelligent than others is one of those hypotheses that dare not speak its name. But Gregory Cochran is prepared to say it anyway. He is that rare bird, a secientist who works independently of any institution. He helped popularize tha idea that some diseases not previously thought to have a bacterail cause were actually infections ,which aroused much controversy when it was first suggested.
Even he, however,might tremble at the thought of what he is about to do.
不敢公开：Dare not speak its name
不依附于任何机构：Work indipendently of any institution
帮助普及该观点：Help popularize the idea
引起了很大的争议：Arouse much controversy
一想到……就害怕的身体颤抖：Tremble at the thought of
由细菌引起的：Have a bacterial cause
[Anki资源]考研英语固定词组搭配。 He helped popularize the idea that some diseases not previously thought to have a bacterial cause were actually infections , which aroused much controversy when it was first suggested.
[Anki资源]考研英语固定词组搭配。 结构提示：that some diseases 是前面 the idea 的同位语从句，not previously thought to have a bacterial cause做后置定语修饰前面的diseases,主干是some diseases were actually infections.