C．Magic Glasses

　　D．Beautiful Minds

　　2．What can we learn about adaptive glasses?

　　A．They are very expensive.

　　B．The inventor is a student.

　　C．The glasses are fragile.

　　D．They don’t look very nice.

　　3．Which invention won an award?

　　A．Adaptive glasses.

　　B．The wind-up radio.

　　C．The Dyson vacuum cleaner.

　　D．The Zapata Flyboard.

　　4．The Dyson vacuum cleaner was invented with the purpose of________.

　　A．helping people use cleaners more easily

　　B．making Dyson a rich businessman

　　C．keeping the house cleaner than before

　　D．taking the place of human cleaners

　　B

　　(2016·山西省六所重点中学联考)

　　What happens inside the skull of a soccer player who repeatedly heads a soccer ball？That question motivated a challenging new study of the brains of experienced players that has caused discussion and debate among soccer players，and some anxiety among those of us with soccer-playing children.

　　For the study，researchers at the Albert Einstein College of Medicine in New York selected 34 adults，men and women.All of the volunteers had played soccer since childhood and now competed year-round in adult soccer leagues.Each filled out a detailed questionnaire developed especially for this study to determine how many times they had headed a soccer ball in the previous year，as well as whether they had experienced any known concussions (脑震荡) in the past.

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