Compare each pair of words and complete the following sentences with the right one. Change

A Doctor in the House

Brushing your teeth twice a day should keep the dentist away. But if a group of scientific research-ers have their wish, it will make the rest of your body healthy too. _(46) It is one of manygadgets (小装置) proposed by engineers and doctors at the Center for Future Health in New York-others include a pair of glasses that help to jog your memory, and a home camera designed to check forcancer.

The devices seem fanciful, but the basic principles are simple. The gadgets should make it easy forpeople to detect illness long before it strikes and so seek treatment far.earlier than normal (47) In the long run, the technology may even prevent illness by encouraging us to lead healthierlives.

Intelligent bandages (绷带 ) are a good example. Powerful sensors within the bandage could quick-ly identify tiny amounts of bacteria in a wound and determine which antibiotics (抗生素) would workbest. _ (48)

Socks are long overdue for a makeover. In the future they will be able to automatically detect theamount of pressure in your foot and alert you when an ulcer (溃疡) is coming up.

All the projects should have far-reaching implications, but the biggest single development is amelanoma(黑瘤) monitor designed to give early warnings of cancer (49) If a problem isfound, the system would advise you to get a check-up at your doctor's surgery.

If all this sounds troublesome, then help is at hand. (50) A standard computer would beable to understand your voice and answer questions about your symptoms in plain English and in a way

which would calm your nerves.

A. The device could be used to take a picture of your body each week, then compare it with previ-

ous images.

46. A. The device could be used to take apicture of your body each week, then compare it with previ-

ous images.

B. That is going to be the difficultpart.

C. The cut could then be treatedinstantly, so avoiding possible complications.

D. Instead of relying on hi-techhospitals, the emphasis is shifted to the home and easy-to-usegadgets.

E. Experts are also working on a"digital doctor", complete with a comforting bedside manner.

F. A toothbrush that checks blood sugaran d bacteria while your brush is currently in development inUSA.

A.The difference of the angle measures in each pair is less than 45°.

B.The difference of the angle measures in each pair is 90°.

C.The measure of each angle in each pair is 45°.

D.The sum of the angle measures in each pair is 90°.

E.The sum of the angle measures in each pair is 180°.

SECTION 2

Directions: In each of the following questions, a related pair of words or phrases is followed by five lettered pairs of words or phrases. Select the lettered pair that best expresses a relationship similar to that expressed in the original pair.

DESSICATE: LIQUID：：

A．imprison：freedom

B．plunder：valuables

C．suffocate：oxygen

D．refrain：repetition

E．prohibit：development