1、国家公共英语五级（听力理解）练习试卷 6及答案与解析 Part C Directions: You will hear a talk. As you listen, answer the questions or complete the notes in your test booklet for Questions 21-30 by writing NOT MORE THAN THREE words in the space provided on the right. You will hear the talk TWICE. You now have 1 minute to read
2、Questions 21-30. 1 The computer brings both the benefits and dangers. The speaker means danger to _ well-being of the people who are at computer terminals. 2 The severe abnormalities of pregnant women who work with computer terminals is _ higher than those of pregnant women who dont work with comput
3、er terminals. 3 Exposing for long periods to the video screen causes disturbances to vision and _. 4 Why have some trade unions of workers involved with computer laid down their own guidelines? 5 There are two groups of computer users. Which group, professional or amateur does the speaker think is i
4、n more danger? 6 People working with computers have backache because they crouch over a (an) _ keyboard. 7 People who work in front of the screen not only suffer from the visual disturbance but also an _ of the face. 8 It seems that the electrostatic field of the video screen attracts dust from the
5、atmosphere and _ . 9 What can a shaky or fuzzy image on the screen cause? 10 The speaker mentioned five precautions for the terminal users. What kind of precautions are these? 国家公共英语五级（听力理解）练习试卷 6答案与解析 Part C Directions: You will hear a talk. As you listen, answer the questions or complete the notes
6、 in your test booklet for Questions 21-30 by writing NOT MORE THAN THREE words in the space provided on the right. You will hear the talk TWICE. You now have 1 minute to read Questions 21-30. 1 【听力原文】 Theres no doubt that the computer has enlarged mans working capacity as well as his intellectual ca
7、pacity enormously. Er but it brings with it dangers to match the benefits. Now by this, I mean danger to physical and mental well being of the people who work at computer terminals, not the dangers to personal privacy or national or industrial security. Theres one very alarming set of statistics, wh
8、ich come from a survey done in the UK on 800 pregnant women, who happened to use computer terminals for a major part of their working day. In no less than 36% of the subjects there was some severe abnormality during the pregnancy, enough to make a termination necessary. Now these figures compare sig
9、nificantly with a control group of pregnant women of the same age but who did not work with computer terminals. The incidence of severe abnormalities in their case was only 16%. This survey confirms similar investigations carried out in Denmark, Canada, Australia and the USA. Now, no one yet has a c
10、lear idea about the exact connection between working with computer terminals and the problems with pregnancy, but the figures at least suggest that theres, well, a cause for alarm. In more general terms, increased stress and disturbances to vision have been noted in workers exposed for long periods
11、to the video screen, and in many countries trade unions of workers involved with computers have laid down their own guidelines to protect members health. For instance, rest periods, or a change of activity from time to time are recommended, and the terminal should be placed so that theres a source o
12、f natural light, and something else to look at, no blank walls behind the terminal, in other words, so that the operator has a chance to rest his eyes from time to time. Ironically, it seems that its not only those who work with computers are at risk. Er theres perhaps more danger for people who use
13、 computers for interest or pleasure in their own homes. Now, its obviously not possible to impose in the privacy of peoples homes the sort of safeguards that can be applied in the working environment. Most people get so fascinated by what they are doing that they stay in front of the screen for hour
14、s on end; some are real fanatics! But theyre also using their computers in environment, which are not specially designed. Er they may be dusty or hot, and not particularly well lit on the whole. An English magazine for computer enthusiasts recently ran its own survey. The readers were invited. To se
15、nd in an account of any health problems they felt were connected with the use of their computers. Interestingly, a long list emerged of complaints both serious and less serious, ranging from constipation because of the long hours spent in sedentary inactivity, and backache due to crouching over an i
16、nconveniently positioned keyboard, erm, right through to a general sense of fatigue owing to having puzzled over a problem for longer than was sensible. The visual disturbances mentioned above were also very common. Some readers who already suffered from short sight found that the condition had wors
17、ened, and a rare complaint， but still one suffered by a significant number， was an itching of the face，which in some cases attracting dust from the atmosphere， which irritates exposed skin. And this is an example of a complaint which is rare in the work situation because there is usually some form o
18、f air conditioning， and quite simply not SO much dust and fluff in the air as in a normal home. Precautions for both types of terminal users remain essentially the same： So， first of all， make sure that theres an alternative source of light from that of the screen itself. Secondly， rest your eyes fr
19、equently， if possible looking at something in the distance to give them a change from the close focus used on the screen. Thirdly, make sure the screen is properly tuned; a shaky or fuzzy image can cause nausea or headaches. Fourthly, make sure your seat and working area are designed so that youre s
20、itting in a comfortable position， not er screwed up or bent over. And f inally, get up regularly and walk about the room. Better still， go out into the flesh air occasionally. Sitting still for hours on end is the best way to legs being particularly good for the digestion. These are all common sense
21、 precautions, but how many home computer owners wrapped up in the intricacies of some programming problem, or fascinated by some game， are going to remember to use their common sense? Does a generation of shortsighted, constipated, hunched, migraine sufferers with skin problems and circulatory troub
22、les await us? 1 【正确答案】 physical and mental 【试题解析】 本题为细节题。从 “I mean danger to physical and mental well-being of the people who work at computer terminals”可知道答案。 【知识模块】 听力理解 2 【正确答案】 20% 【试题解析】 本题为细节题。听清原文 “less than 36%of the subjects there was some severe abnormality during the pregnancy, enough to
23、make a termination necessary”和 “incidence of severe abnormalities in their case was only 16%” 即可知道他们之间的比例相差 20%。 【知识模块】 听力理 解 3 【正确答案】 increased stress 【试题解析】 本题为细节题。听清原文 “In more general terms， increased stress and disturbances to vision have been noted in workers exposed for long periods to the vi
24、deo screen”即可知道答案。 【知识模块】 听力理解 4 【正确答案】 To protect members health 【 试题解析】 本题为细节题。从 “and in many countries trade unions of workers involved with computers have laid down their own guidelines to protect members health”即可知道答案。 【知识模块】 听力理解 5 【正确答案】 Amateur(group) 【试题解析】 本题为推断题。从 “theres perhaps more dan
25、ger for peopl e who use computers for interest or pleasure in their own homes”可知，业余使用者更危险。 【知识模块】 听力理解 6 【正确答案】 inconveniently positioned 【试题解析】 本题为细节题。从 “backache due to crouching over an inconveniently positioned keyboard”可知道答案。 【知识模块】 听力理解 7 【正确答案】 itching 【试题解析】 本题为细节题。听清原句 “but still one suffer
26、ed by a significant number, was an itching of the face, which in some cases became a form of dermatitis”可知道答案。 【知识模块】 听力理解 8 【正确答案】 irritates exposed skin 【试题解析】 本题为细节题。从原句 “It seems that this is due to the electrostatic field of the video screen attracting dust from the atmosphere， which irritates exposed skin”即可得出答案。 【知识模块】 听力理解 9 【正确答案】 Nausea or headaches 【试题解析】 本题为细节题。听清句子 “a shaky or fuzzy image can cause nausea or headaches”即可容易知道答案。 【知识模块】 听力理解 10 【正确答案】 Common-sense precautions 【试题解析】 本题为细节题。听清原句 “These are all common-sense precautions”即可知道答案。 【知识模块】 听力理解
