C. A tiny nine-volt battery will work.

　　D. They will get charged automatically.

　　3. What does the underlined phrase “This handy invention” in Paragraph 5 refer to?

　　A. The laptop computer.

　　B. The electronic ski jacket.

　　C. The shirt-cum-mobile phone.

　　D. The world’s first cloth keyboard.

　　4. If you are going on a ski adventure, which device do you need?

　　A. The cloth keyboard.

　　B. The electronic ski jacket.

　　C. The necktie to be used as a mouse.

　　D. The denim jacket with earphones.

　　5. The main purpose of the text is　.

　　A. to advertise for an English company

　　B. to predict the future trend of science

　　C. to show how rapidly science develops

　　D. to introduce some intelligent clothing

　　B

　　(2017·绍兴统考)

　　When people first walked across the Bering Land Bridge thousands of years ago, dogs were by their sides, according to a study published in the journal Science.

　　Robert Wayne of the University of California, Los Angeles, and Jennifer Leonard of the Smithsonian Institute, used DNA material—some of it unearthed by miners in Alaska—to conclude that today’s domestic dog originated in Asia and accompanied the first humans to the New World about 10, 000 to 15, 000 years ago. Wayne suggests that man’s best friend may have enabled the tough journey from Asia into North America. “Dogs may have been the reason people made it across the land bridge, ”said Wayne. “They can pull things, carry things, defend you from fierce animals, and they’re useful to eat. ”

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