问题 单项选择题

According to the U.S. scientists, the bacteria giving the soft orange glow prevents the seawater from nourishing the coral.

A.True

B.False

答案

参考答案:B

解析: U.S. scientists discovered that the soft orange glow of a common Caribbean coral comes not from the coral itself but from bacteria that live inside it. And the bacteria not only give the coral a little nightlight, but they also break down seawater to help nourish the coral.事实细节的找寻和判断。根据题干,需要与原文核对的细节有两处:1)某种细、菌是否发出橘黄色的光;2)该细菌是否阻止海水向珊瑚提供养分。根据原文“the soft orange glow…but from bacteria that live inside it”可知,题干中第一处细节与原文相符;根据原文“the bacteria…break down seawater to help nourish the coral”即“该细菌还可分解海水,使其更有助于为珊瑚提供养分”,由此可见,第二处细节与原文说法不符,因此该题的说法是错误的。 注意:掌握反义词的识别,有助于迅速解题。原文中的help与题干中的prevent…from是反义词。

单项选择题 B1型题
单项选择题