Do you know that humans have been cleaning their teeth for over 7,000 years? According to the BBC, the ancient Egyptians used a type of toothpaste (牙膏). ______ it is believed that the Egyptians used a finger ______ a toothbrush to clean their teeth. Chinese people may have ______ the first toothbrush around 1600 BC.

Your toothbrush, however, may have also become______. Because it is now possible to clean our teeth ______ using our hands!

Two Canadians, Adel Elseri and Said Fayad, have invented______called T2T or “tongue?to?teeth”. Elseri says he came up with the idea______he was driving home after a long day at work. His______ is a toothbrush that goes onto your tongue(舌). T2T has special edges(边缘) and toothpaste. So just______your tongue over your teeth and it cleans your teeth just like a toothbrush ______! It will make your breath fresh too.

Elseri and Fayad made this hand?free toothbrush because they believed it was a(n) ______way for someone to brush their teeth. But people can only use the T2T______.

Would you use the tongue?to?teeth? The Huffington Post in the USA ______ readers what they thought. Sixty-?one percent said that they would use it while only thirty?nine percent said they ______. Personally I think I'm going to stick to(坚持用) the ______.

1.A. So B. Then C. But D. Or

2.A. instead of B. because of C. more than D. less than

3.A. discovered B. develop C. built D. developed

4.A. science B. history C. problem D. secret

5.A. by B. from C. without D. for

6.A. nothing B. everything C. anything D. something

7.A. until B. when C. since D. though

8.A. idea B. story C. word D. plan

9.A. hold B. pull C. move D. check

10.A. is B. does C. was D. did

11.A. shorter B. easier C. harder D. longer

12.A. again B. soon C. once D. already

13.A. told B. asked C. warned D. advised

14.A. shouldn't B. should C. wouldn't D. would

15.A. finger B. toothbrush C. mouth D. tongue

 0  128776  128784  128790  128794  128800  128802  128806  128812  128814  128820  128826  128830  128832  128836  128842  128844  128850  128854  128856  128860  128862  128866  128868  128870  128871  128872  128874  128875  128876  128878  128880  128884  128886  128890  128892  128896  128902  128904  128910  128914  128916  128920  128926  128932  128934  128940  128944  128946  128952  128956  128962  128970  159627 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网