E

Sports shoes that work out whether their wearer has done enough exercise to warrant time in front of a television have been devised in the UK.

The shoes—named Square Eyes—contain an electronic pressure sensor and a tiny computer chip to record how many steps the wearer has taken within a day.A wireless transmitter passes the information to a receiver connected to a television，and this decides how much evening viewing time the wearer deserves，based on the day’s efforts.

“The design was inspired by a desire to fight against the rapidly ballooning waistlines among British teenagers，”says Gillian Swan，who developed Square Eyes as a final year design project at Brunel University in London，UK.“We looked at current issues and childhood overweight really stood out，”she says.“And I wanted to tackle that with my design.”

Once a child has used up his daily allowance gained through exercise，the television automatically switches off.And further time in front of the TV can only be earned through more steps.

Swan calculated how exercise should translate to television time using the recommended daily amounts of both.Health experts suggest that a child take 12,000 steps each day and watch no more than two hours of television.So，every 100 steps recorded by the Square Eyes shoes equal precisely one minute of TV time.

Existing pedometers(计步器) normally clip onto a belt or slip into a pocket and keep count of steps by measuring sudden movement.Swan says these can be easily tricked into recording steps through shaking.But her shoe has been built to be harder for lazy teenagers to cheat.“It is possible，but it would be a lot of effort，”she says.“That was one of my main design considerations.”

72.According to Swan，the purpose of her design project is to ________.

A.keep a record of the steps of the wearer

B.deal with overweight among teenagers

C.enable children to resist the temptation of TV

D.prevent children from being tricked by TV programs

答案　B

解析　细节理解题。由文章第三段的第一句可得出答案。

73.Which of the following is TRUE of Square Eyes shoes?

A.They regulate a child’s evening TV viewing time.

B.They determine a child’s daily pocket money.

C.They have raised the hot issue of overweight.

D.They contain information of the receiver.

答案　A

解析　推理判断题。由文章的第四段可知孩子们看电视的时间与他们的锻炼有关，第五段具体讲了孩子们走多少步才能看一分钟电视。由以上可推出答案。

74.What is stressed by health experts in their suggestion?

A.The exact number of steps to be taken.

B.The precise number of hours spent on TV.

C.The proper amount of daily exercise and TV time.

D.The way of changing steps into TV watching time.

答案　C

解析　细节理解题。由文章倒数第二段第二句可知专家的建议包括两项：一、每天走12 000步;二、每天只看两小时电视。A、B两项不全面，而D项与内容不符合。

75.Which of the following would be the best title for the text?

A.Smart Shoes Decide on Television Time

B.Smart Shoes Guarantee More Exercise

C.Smart Shoes Measure Time of Exercise

D.Smart Shoes Stop Childhood Overweight

答案　A

解析　标题归纳题。文章重在讲述这种鞋的妙用，把运动量与看电视的时间联系起来，以达到让孩子们减肥的目的。A项准确、生动地概括了文章内容。D项为最大干扰项，此种鞋不是阻止孩子们肥胖(太绝对)，而是通过这种有趣的方式让孩子们乐意去减肥。

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