题目内容
（请给出正确答案）
What did the author mean by" I am not alone" in paragraph 1？
A．He and his family all didn’t know how to use the machine.
B．His family supported his opinion.
C．Many people faced the trouble as he did.
D．He was a popular guy.
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更多“What did the author mean by" I…”相关的问题
A、in order to
B、is to
C、as to
D、has to
A、Hello
B、Thank you
C、Merry Christmas
D、Happy Birthday
Video recorders and photocopiers, even ticket machines on the railway, often seem unnecessarily difficult to use. Last December I bought myself a video cassette recorder (VCR) described as "simple to use". In the first three weeks I failed repeatedly to program the machine to record from the TV, and after months of practice I still made mistakes. I am not a lone. According to a survey last year by Ferguson, the British manufacturer, more than in four VCR owners never use the timer on their machines to record a programme: they don’t use it because they' ve found it far too hard to operate.
So why do manufacturers keep on designing and producing VCRs that are awkward to use if the problems are so obvious？ First, the problems are not obvious to technically minded designers with years of experience and trained to understand how appliances work. Secondly, designers tend to add one or two features at a time to each model, whereas you or I face all a machine’s features at once. Thirdly, although finding problems in a finished product is easy, it is too late by then to do anything about the design. Finally, if manufacturers can get away with selling products that are difficult to use, it is not worth the effort of any one of them to make improvements.
Some manufacturers say they concentrate on proving a wide range of features rather than on making the machines easy to use. But that gives rise to the question, "Why can't you have features that are easy to use？" The answer is you can.
Good design practice is a mixture of specific procedures and general principles. For a start, designers should build an original model of the machine and try it out on typical members of the public -- not on colleagues in the development laboratory. Simple public trials would quickly reveal many design mistakes. In an ideal world, there would be some ways of controlling quality such as that the VCR must be redesigned repeatedly until, say, 90 per cent of users can work 90 per cent of the features correctly 90 per cent of the time.
According to the passage, before a VCR is sold on the market its original model should be tried out ______.
A．among ordinary consumers who are not technically minded
B．among people who are technically minded
C．among experienced technicians and potential users
D．among people who are in charge of public relations
A．Because men on the Earth are protected by the atmosphere.
B．Because radiation only has short-term effects on men on the Earth.
C．Because there is a great distance between the Earth and the radiation areas.
D．Because the Van Allen Belts absorb all radiation.
There are two sorts of radiation man must fear in space. The first is radiation from the sun, and this is particularly dangerous when the sun is very active and explosions are occurring on its surface. The second, less harmful form. comes from the so-called Van Allen Belts. These are two areas of radiation about 1,500 miles away from the earth. Neither of these forms of radiation area is dangerous to us on the earth, since we are protected by our atmosphere. Specifically, it is that part of our atmosphere known as the ozonosphere which protects us. This is a belt of the chemical ozone between 12 and 21 miles from the ground, which absorbs all the radiation.
Once outside the atmosphere, however, man is no longer protected, and radiation can be harmful in a number of ways. A distinction must be drawn between the short-and long-term effects of radiation. The former are merely unpleasant, but just because an astronaut returning from a journey in space does not seem to have been greatly harmed, we cannot assume that he is safe. The long-term effects can be extremely serious, even leading to death.
What forms of radiation are feared by astronauts？
A．Radiation from the sun.
B．Radiation from the Van Allen Belts.
C．Radiation from the meteors.
D．Both A and B
A．revel in
B．relate to
C．revert to
D．revive in
A．appeal to
B．apply to
C．approve of
D．ascend to
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