Đọc kỹ đoạn văn sau và điền A, B, C hoặc D vào chỗ trống tương ứng với phương án lựa chọn đúng.
The computer is undoubtedly one of the most (1 ) and important inventions of the twentieth century. Boring or time-consuming jobs which, in the past, would have been (2) by hundreds of workers can now be done by one small computer. However, the (3) of the computer has not been entirely problem-free. Many people feel that we are already too dependent on computers.
hey think that computers themselves are (14) too powerful, and that people are no longer in control of them.
One of the problems with a computer is that, like any other machines, it can break own. If a computer is (15) , then the information it is storing can be lost. If a computer program has a/an (16) in it, the computer’s calculations can be seriously (17) . A faulty program in a hospital or police computer could cause terrible mistakes.
The other problem with computers is security. Although computer systems are carefully designed to prevent unauthorized people using them, computer ( 18) o happen illegal computer users, known as "hackers", have found ways to gain access to company, and even governmental, computer systems. Hackers can cause destruction by making unauthorized changes to a systems or stealing (1 9) information. They can even steal money by (20) it from one bank account to another.
The computer is undoubtedly one of the most (1 ) and important inventions of the twentieth century. Boring or time-consuming jobs which, in the past, would have been (2) by hundreds of workers can now be done by one small computer. However, the (3) of the computer has not been entirely problem-free. Many people feel that we are already too dependent on computers.
hey think that computers themselves are (14) too powerful, and that people are no longer in control of them.
One of the problems with a computer is that, like any other machines, it can break own. If a computer is (15) , then the information it is storing can be lost. If a computer program has a/an (16) in it, the computer’s calculations can be seriously (17) . A faulty program in a hospital or police computer could cause terrible mistakes.
The other problem with computers is security. Although computer systems are carefully designed to prevent unauthorized people using them, computer ( 18) o happen illegal computer users, known as "hackers", have found ways to gain access to company, and even governmental, computer systems. Hackers can cause destruction by making unauthorized changes to a systems or stealing (1 9) information. They can even steal money by (20) it from one bank account to another.
| 1 A. shocking | B. amazing | C. astonishing | D. surprising |
| 2. A. put out | B. carried out | C. run out | C. taken out |
| 3. A. usage | B. recommendation | C. use | D. operation |
| 4. A. becoming | B. coming | C. running | D. keeping |
| 5. A. changed | B. broken | C. contaminated | D. damaged |
| 6. foul | B. abnormality | C. wrong doing | D. error |
| 7. devalued | B. affected | C. offended | D. broken |
| 8. A. sins | B. offences | C. fouls | D. crimes |
| 9. unknown | B. mysterious | C. confidential | D. vague |
| 10. A. transferring | B. giving | C. changing | D. dealing |
