Question

A team of scientists from University of Freiburg in Germany are developing a shoe with a sensor to automatically tie its laces(鞋带)that could be taken off when users click their heels together．

It’s been 26 years since we saw them magically tightening Marty McFly’s Nike boots in the film Back to The Future．

Now，self-tying shoelaces could actually become a reality this year，proving right one of the film’s fantastical predictions for what 2015 would be like．

Engineers have designed a shoe that can automatically lace up，adjusting itself to the shape of your foot．

Simply slip the controller on and pressure sensors will tell the ‘smart shoe’ when your foot is in position，triggering(触发)a tiny motor in the heel that pulls the laces tight.

When you want to take off the shoes，you click your heels together twice and the motor will release a spring(弹簧)in the shoe’s tongue，which loosens the laces enough for you to slip them off．

And the invention doesn’t even need to be plugged in to charge or have its battery replaced because it runs on power generated by the swing of your foot as you walk.

Engineer K1evis Ylli，of the Institute for Micromachining and Information Technology in southern Gemany，said the shoes could help a variety of different people.

“One focus is that it could be used in shoes for elderly people who have mobility problems，”he said．“But it could also work for children，or as a lifestyle product．”．

The design，which is still in a prototype(雏形)stage，cleverly gets the energy of the foot’s swing when opposing magnets in each shoe move past each other. It then uses that power to charge a battery．An hour of walking is enough to tighten the laces once，and it requires no energy to undo the shoes because that relies on the spring alone.

1.Which of the following can be the best title of the text?

A．A fantastical prediction

B．A great invention in Germany

C．A shoe with self-tying laces

D．A popular lifestyle product

2.What can we learn about the shoes?

A．They can automatically take off．

B．They can adjust themselves to your foot．

C．They need to be charged once．

D．They have been in design for 26 years．

3.From the last paragraph we can know ____________．

A．the shoes have been put into use

B．the shoes need power to take off

C．the shoes promise to be popular

D．how the shoes work to produce energy

Answer

1.C

2.B

3.D

【解析】

试题分析：德国工程师日前研发出一款智能鞋，不仅可以自己系带，还可以自动根据脚型调整鞋子松紧。人们只需穿上这款鞋，安装在鞋内的传感器就会引发鞋底的小电机产生作用，束紧鞋带。脱鞋时，将两只鞋跟轻碰两次，就会触发鞋舌处释放弹簧以松开鞋带，使你脱下鞋子。

1.A．A fantastical prediction一个空想的预测；B．A great invention in Germany德国的一个伟大发明；C．A shoe with self-tying laces 一种自绑鞋带的鞋；D．A popular lifestyle product一种流行的生活产品；通读文章可知，该篇文章主要讲述的是：德国弗莱堡大学(University of Freiburg)的一个科学团队正在研究一种可利用传感器自动系鞋带的鞋。故该题正确答案为C．A shoe with self-tying laces. 因为目前该产品正在研发中，所以排除B.D. 而根据文章细节所提到的：自动鞋带今年可能真会成为现实，即可排除A.

2.当你想要脱鞋时，碰撞鞋跟两次，发动机就会释放鞋舌部位的弹簧，松开鞋带让你脱鞋。即可排除A. 且这项独创性的发明甚至无需充电或更换电池，因为它仅靠你走路时双脚的摆动来发电。即可排除选项C. 文中并没提到该项研究的开始时间，所以D也错误；而根据文章中的Engineers have designed a shoe that can automatically lace up，adjusting itself to the shape of your foot．（工程师们设计出一款鞋可以自动系鞋带，并可根据脚型自动调节。）可知，该题正确答案为B.

3.目前，这项设计还是雏形。即可排除A. 解鞋带时只需依靠弹簧，因此无需能量。即可排除B. 也没提到它一定会流行，即排除C. 而其提到的：当两只鞋中极性相反的磁铁互相移动时，设计师能巧妙地获得能量。然后将这些能量给电池充电，走一个小时的路，产生的电量足以系紧一次鞋带。由此可知，这种鞋是如何产生能量的。

考点：科技说明文的阅读