题目内容：

The days of glancing at a map or the screen of your smart phone when you’re lost will soon be over, thanks to new shoes that tell you which way to turn to. The shoes use a Bluetooth link to communicate with your mobile’s mapping system. The mobile works out which route you should be following and the shoes then produce a slight shaking in either foot telling you when and where to change direction.

The shoes will also count the number of steps you’ve taken and the calories you’ve burned, and they’ll even buzz to warn you you’ve left your phone behind, or to tell you when you’re travelling past an interesting landmark.

“They are as easy to use as a tap on the shoulder,” said Krispian Lawrence, 30, who developed the shoes with partner Anirudh Sharma, 28, in Hyderabad, India. “You can even communicate with them using hand gestures and finger snaps because the shoes have sensors that can pick up movement and sound.”

The Lechal shoes go on sale worldwide in June but Lawrence and Sharma’s company, Ducere Technologies, has already taken more than 3,000 pre-orders. Lawrence believes the shoes will also improve road safety. “If I’m on my bike or motorbike, I don’t want to stare at my phone ---it’s dangerous,” he says. “I’d rather be guided by my footwear.” He believes his invention will prove invaluable for the visually impaired and has promised that every mainstream pair sold by Ducere will subsidize(资助) a cheaper pair for a visually damaged person.

Footnav technology does not impress explorer Sir Ranulph Fiennes, however. “What’s wrong with a good old-fashioned map?” said the 70-year-old when told of the shoes. “If you rely too heavily on technology, you’re heading for trouble. Too many people have forgotten the basics: how to read a map and a compass.”

1.According to the passage, which of the following can smart shoes NOT do?

A. Guiding your road.

B. Warning of the loss of your wallet.

C. Counting your steps and calories.

D. Reminding you of landmarks.

2.Smart shoes can be used as a map mainly because            .

A. they can talk to people

B. they can produce a slight shaking

C. they are guided by a remote control

D. they are linked to mobiles’ mapping system

3.What’s the possible meaning of the underlined word “impaired”?

A. Discouraged.    B. Disabled.

C. Disappointed.    D. Disliked.

4.What is Sir Ranulph’s attitude towards this invention?

A. Positive    B. Negative.

C. Disturbing.    D. Confused.