根据短文内容，选择正确答案。 Since the beginning of time, man has invented many inte

题文

根据短文内容，选择正确答案。     Since the beginning of time, man has invented many interesting things. Some of the inventions, like numbers and the radio, have certainly changed history. Since 1946. one of the most important inventions has been the computer.  It will change all our lives.     The first computer was built at Harvard University in 1944. It was as large as a room and quite difficultand slow to operate.  But since the invention of the silicon chip (硅片), computers have become smaller, easier to u, and faster to operate. Some computers are as small as television ts.  Some computers canbe made smaller than a book.  And computers are getting smaller and all the time.     There are veral reasons why computer is uful. First it can store very. Very large amount of information. Second, the computer can operate very quickly. Third, modern computer can be built into other kind of machines, like radio, cars and planes. They can do a lot of work for us.     Soon, almost everyone. either at home or at work, will u some kind of computers.  The lives of all of us will be changed by this invention.1. What have changed history and people's life according to the passage?A. Numbers. B. Radios.C. Computers.2. The first computer was built ______.A. in the middle of the 19th centuryB. in the middle of the 20th centuryC. at the beginning of time3. A modern computer can be made _____.A. as large as a roomB. smaller than a book C. smaller than silicon chips4. The computer has been made much better since the invention of _____.A. the silicon chip B. the radio C. the color TV t5. The computer is uful becau _____.A. it can. operate very quickly and can be built into other machinesB. it can store lots of informationC．both A and B

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答案

1-5: CBBAC

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