Dr. Brody's new study with young black Americans reveals that&nb-考呗网

英语六级

单选题 Dr. Brody's new study with young black Americans reveals that ________.

A．developing serf-control is not beneficial at all
B．teenagers can benefit from developing self-control
C．the effect of serf-control relates to social background
D．serf-control causes high blood pressure and obesity

参考答案：C进入在线模考

由题干中的Dr．Brody’s和young black Americans定位至文章第四段最后两句。
事实细节题。定位句指出，在自控力强的人群中，如果来自较为贫困的家庭，则强自控力可能使血压更高，更可能肥胖，并且压力激素水平更高，而对于来自较高社会阶层家庭的人则不存在这种隋况，可见，高自控力的影响与不同的社会背景有关，故答案为C。A“发展自控力根本没有任何益处”，尽管本段提到高自控力对于来自较贫困家庭的人可能意味着提高一些疾病的风险，而高社会阶层的人群并没有这种情况，但是上文第二段也指出，自控力强的人社会成就要优于自控力弱的人，故自控力并非没有益处，A不符合文意，
故可排除；B“青少年可以从发展自控力中获益”，布罗迪博士的研究恰恰说明，对于不同社会背景的人来说，自控力的影响是不同的，B以偏概全，故可排除；D“自控力会导致高血压和肥胖”，定位句指出，只有来自贫困家庭的人才会出现这种情况，对于社会阶层高的人则不存在这种情况，故可排除。

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1What can we infer about DNA-methylation from the passage?

A．It can reveal levels of self-control.
B．It relates to the physiological age.
C．It is one of the ingredients of blood.
D．It changes with social circumstance.

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2What can we know about Dr. Brody's findings?

A．They are out of the expectation of the researchers.
B．They reveal a connection between gene and age.
C．They contradict with the results of Mischel's study.
D．They raise a new issue for research in the future.

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3Which of the following can be a suitable title for the passage?

A．Social Background and Self-control
B．What Benefits Will Self-control Bring?
C．How Should We Develop Self-control?
D．Probing the Effects of Self-control

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