Question

How fit are your teeth? Are you lazy about brushing them? Never fear: An inventor is on the case. An electric toothbrush senses how long and how well you brush and it lets you track your performance on your phone.

The Kolibree toothbrush was exhibited at the International Consumer Electronics Show in Las Vegas this week. It senses how it is moved and can send the information to an Android phone or iPhone via a Bluetooth wireless connection.

The toothbrush will be able to teach you to brush right (don’t forget the insides of the teeth!) and make sure you’re brushing long enough. “It’s kind of like having a dentist actually watch your brushing on a day-to-day basis,” says Thomas Serval, the French inventor.

The toothbrush will also be able to talk to other applications on your phone, so developers could, for example, create a game controlled by your toothbrush. You could score points for beating monsters among your teeth. “We try to make it smart and fun,” Serval says.

Serval says he was inspired by his experience as a father. He would come home from work and ask his kids if they had brushed their teeth. They said “yes,” but Serval would find their toothbrush heads dry. He decided he needed a brush that really told him how well his children brushed.

The company says the Kolibree will go on sale this summer, from $99 to $199, and the U.S. is the first target market.

1.All of the following statements are wrong except ____________.

A. It can sense how users brush their teeth.

B. It can track users’ school performance.

C. It can check users’ fear of seeing a dentist.

D. It can help users find their phones.

2.What can we learn from Serval’s words in Paragraph 3?

A. You will find it meaningful to see a dentist.

B. You should see your dentist on a day-to-day basis.

C. You can brush with the Kolibree as if guided by a dentist.

D. You’d like a dentist to watch you brush your teeth every day.

3.What does the underlined sentence mean?

A. You can use the toothbrush to update mobile phones.

B. You can play games by using the tooth brush .

C. Brushing teeth can kill some bacteria(细菌) in the mouth.

D. Brushing teeth helps to play games better.

4.What can we infer about Serval’s children?

A. They were unwilling to brush their teeth.

B. They often failed to clean their toothbrushes.

C. They preferred to use a toothbrush with a dry head.

D. They liked brushing their teeth after Serval came home.

Answer

1. A

2. C

3. B

4. A

【解析】

本文是一篇关于科技发明的说明文，介绍了一种新型的电动牙刷既智能又有趣，能够检查人们的刷牙情况。

1.细节理解题。根据第一段中的“An inventor is on the case. An electric toothbrush senses how long and how well you brush and it lets you track your performance on your phone.”可知，这种电动牙刷可以感知你刷牙的时间和刷牙的情况，你可以通过手机来知道自己的表现，故A项正确。

2.细节理解题。根据第三段中的“It’s kind of like having a dentist actually watch your brushing on a day-to-day basis”可知，有点像牙医每天都看你刷牙，Serval这句话的意思是用这种电动牙刷就好像有牙医天天在监督你的刷牙情况一样，故C项正确。

3.句意理解题。根据第四段中的“developers could, for instance, create a game controlled by your toothbrush. You could score points for beating monsters among your teeth. ”可知，还可以用这个牙刷来玩游戏，通过玩“打击牙齿间的怪兽来积分”的游戏让孩子喜欢上刷牙，故B项正确。

4.推理判断题。根据第五段 “He would come home from work and ask his kids if they had brushed their teeth. They said “yes,” but Serval would find their toothbrush heads dry.”可知， Serval的孩子没有刷牙却说自己刷牙了，这说明孩子们不喜欢刷牙，故A项正确。