61.The writer introduces the words such as "input" and "output" in order to_____.
A.introduce people to computer language B.show computer language is the same as English
C.help people some scientific language D.give people some scientific language
62.Why does the writer talk about Stonechenge in Extract 1?
A.To give an example of the very first computer. B.To show that computers are older than mankind.
C.To tell the difference between the past and the present. D.To give another very of explaining computers.
63.If you think of the circle of large standing stones as a computer,_____.
A.the shadow is the input and the position is the output B.the sunlight is the input and the calendar is the output
C.the position is the input and the sunlight is the output D.the calendar is the input and the shadow is the output
64.Extract 2 is probably taken from_____.
A.a computer textbook B.a company's advertisement
C.a teach-yourself computer book D. a children's guide to computers
C
When did you last see a polar bear(北极熊)?On a trip to a zoo,perhaps?If you had attended a winter activity in New York a few years ago,you would have seen a whole polar bear club.These "Polar Bears" are people who meet frequently in the winter to swim in freezing cold water.That day,the air temperature was 3℃,and the water temperature was a little higher.The members of the Polar Bear Club at Coney Island,New York are usually about the age of 60.Members must satisfy two requirements.First,they must get along well with everyone else in the group;this is very important because there are so many different kinds of people in the club.Polar Bears must also agree to swim outdoors at least twice a month from November through February.
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