题目内容
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Why does Denny have to go unarmed？
A．He cannot tell an enemy from a friend.
B．The price would be very high if it were armed.
C．He does not know how to use a weapon.
D．It is unlikely that he will be attacked by a human enemy.
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Denny
His nickname is Denny. He weighs 400 pounds; he is fearless and he never goes to sleep on the job. An ideal security guard？ For many situations he may be. And if he's so good that you wish you had a dozen like him, just place your order. Denny is a robot guard.
Denny can detect, within a 150-foot radius, the presence of anything or anybody that shouldn't be there. Its swiveling (旋转) head contains microwave and infrared sensors that can detect people as well as smoke. In future editions the head will also contain sensors that can smell the weak smell of a human body.
A high-resolution TV camera in Denny's head is on at all time. When something Unexpected comes into view; the TV transmitter switches on. Thus the human overseer (看管人) in the control center sees the sudden appearance of a picture on the monitor screen. At the same time the picture is automatically videotaped.
Normal speed of the robot guards is about one mile an hour, and. they can even talk: 'you have been detected,' warns the voice from the clever guard. Denny is designed to patrol corridors and other areas after lock-down hours (of course, he can work round the clock when necessary), not to move among people. If, say, a prisoner does get near the corridor where he should not be, it'll immediately tell its base station by radio.
Denny has understandable limitations. He can't open doors or watch stairs, for example, or distinguish friend from enemy. Thus he will have to go about unarmed. And he won't be able to replace human security guards where people move about freely.
Denny is a robot guard, who
A．has mechanical anus and legs.
B．has microwave and infrared sensors.
C．has a built-in computer.
D．depends on his built-in radio for distinguishing a friend from an enemy.
Why does the woman ask about the time？
A.She does not have a watch.
B.She is nervous about the appointment.
C.Tom's watch keeps good time.
D.Tom is afraid to be late.
Why does Clara say "It depends"？
A．She does not know where to have the party.
B．She does not know what to do at the party.
C．She does not know when to attend the party.
Why does the man skip breakfast？
A．He's not hungry in the mornings.
B．He doesn't have time for it.
C．He thinks what nutrition experts say is rubbish.
Why does the woman think it is good that the test will be early？
A．They will have time to study for it.
B．Afternoons are bad times for tests.
C．After it, they can study for other exams.
D．They can start planning for their semester break.
Why does Clara say "it depends" ？
A．She does not know where to have the party.
B．She does net know what to do at the party.
C．She does not know when to attend the party.
Why does the man come to the place？
A．To report for duty.
B．To do business.
C．To have dinner.
Why does Rose have to make a phone call？
A．To order furniture
B．To ask the address of the warehouse
C．To complete a shipping order
D．To ask the e-mail address
Why does the man have to leave？
A．He has to pack his bags for his trip.
B．He has to write his own composition.
C．He is not feeling well.
Why does the man have a lot of stress？
A．He couldn' t work out at the gym recently.
B．His things have gone wrong.
C．His boss hates him.
D．His car has broken down.
