In the third paragraph the author wants to tell the reader that _____.
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1 .She gave her money away because_______.
A she wanted to help the university B she wanted others to have the chance to become nurses C she wanted others to have the opportunity to escape a hard life D she want to be remembered after her death
2 .When her generosity was made_______.
A people donated billions B hundreds of students got scholarships C hundreds of people put money into the fund D she was sent to university
3 .McCarty became famous because _______.
A of her generosity B of her exceptional skills C she had saved $ 150,000 D she travelled all over America
4 .The clock located inside our brains is similar to our bedside alarm clock because_____.
A it controls when we wake, when we eat and when we sleep B it has a cycle of 24 hours C it is a cycle also called circadian rhythm D it can alarm any time during 24 hours
5 .What is implied in the second paragraph?
A Young children's biological clock has the same rhythm with that of the teenagers. B People after puberty begin to go to bed earlier due to the change of the biological clock. C Children before puberty tend to fall asleep earlier at night than adolescents. D Teenagers go to bed later than they used...
7 .Which of the following statements is NOT true according to the fourth and fifth paragraphs?
A Our biological clock resets itself automatically. B Light gets through our eyes and resets our biological clock. C Our internal clock as well as the alarm clock can be reset automatically. D Our internal clock, like the alarm clock, can be reset.
8 .According to the last two paragraphs, what did the previous researchers think about the human eye's light-sensing system?
A The human eye had two light-sensing systems. B The human eye had one light-sensing system. C The human eye could sense the light of day more quickly than the dark of night. D The human eye could reset our internal clocks in accordance with the alarm clocks.
9 .What would change the future of electronics according to engineers?
A Big technology. B Creative ways. C Graphene. D Both A and B.
10 .According to the second and third paragraphs, what is true of graphene?
A It can be used to make paper. B It is possible to see it with our naked eye. C It is easy to find graphene. D It is possibly the thickest material in the world.
