A、The relationship between brain size and intelligence is unquestionable. B、People with small brains may be highly intelligent a

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问题  
People with bigger brains tend to score higher on standard tests of intelligence, according to new study findings. [19]However, study author Dr. Michael A. McDaniel emphasized that these findings represent a general trend, and people with small heads should not automatically believe they are less intelligent. For instance, Albert Einstein’s brain was "not particularly large", McDaniel noted. "There’s some relationship between brain size and intelligence on average, but there’s plenty of room for exceptions," he said. [20]Inter-est in the relationship between brain size and intelligence grew in the 1830s, when German scientist Frederick Tiedmann wrote that he believed "there was a connection between the size of the brain and the mental energy displayed by the individual man". Since that statement, scientists have conducted numerous studies to determine if Tiedmann’s argument was, in fact, correct. More recently, researchers have published additional studies on intelligence and brain size. For his study, McDaniel analyzed more than 20 studies that investigated the relationship between brain size and intelligence in a total of 1,530 people. The studies showed that on average, people with bigger brains tended to be more intelligent. The relationship between brain size and intelligence was stronger in women than men, and in adults than children, Mc-Daniel noted. In an interview, McDaniel noted that he’s not sure why the relationship was stronger for adults and women. Previous research has shown that women, on average, tend to have smaller brains than men, but score just as well—if not higher—in tests of intelligence, he said.
19 What does Dr. McDaniel believe?
20 When did the study on the relationship between brain size and intelligence become popular?
21 What can we infer from the previous research mentioned in the passage?

选项 A、The relationship between brain size and intelligence is unquestionable.
B、People with small brains may be highly intelligent as well.
C、Einstein was the only exception of the brain size and intelligence relationship.
D、It is meaningless to study the relationship between brain size and intelligence.

答案B

解析 短文开头指出,脑子越大的人往往越聪明,然后用However引出McDaniel博士所强调的内容,即脑子小也不一定不聪明。短文还引用爱因斯坦的例子加以证明,然后再用McDaniel博士的原话来说明这个观点。只有B与本文主旨一致。
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