集美大学研究生考试学硕参考阅读Word文档格式.docx

1、 visual defects from the optician to the manufacturer, who will then produce and mail the contact lenses within a couple of days. The physicist expects the lenses to cost about a dollar a pair, about the same as conventional one-day disposable lenses.76. The new contact lens is meant for _.A. astron

2、omical observations B. the night blindC. those with vision defects D. optical experiments77. What do “the two instruments” （Line 5, Para.2） refer to?A. The astronomical telescope and the wave-front sensor.B. The aluminum mirror and the laser beam.C. The active mirror and the contact lens.D. The alum

3、inum mirror and the wave-front sensor.78. “Individualized contact lenses” （Line 7, Para. 2） are lenses designed _. A. to work like an astronomical telescope B. to suit the wearers specific needs C. to process extremely accurate data D. to test the wearers eyesight79. According to Billie, with the ne

4、w lenses the wearers vision _. A. will be far better at night than in the daytimeB. may be broadened about 15 times than without them C. can be better improved in the daytime than at night D. will be sharper by a much greater degree at night than in the daytime80. Which of the following is true abou

5、t Billies lenses?A. Their production process is complicated.B. They will be sold at a very low price. C. They have to be replaced every day.D. Purchase orders can be made through the Internet.Key: C D B D BThe biggest safety threat facing airlines today may not be a terrorist with a gun, but the man

6、 with the portable computer in business class. In the last 15 years, pilots have reported well over 100 incidents that could have been caused by electromagnetic interference. The source of this interference remains unconfirmed, but increasingly, experts are pointing the blame at portable electronic

7、device such as portable computers, radio and cassette players and mobile telephones. RTCA, an organization which advises the aviation （航空） industry, has recommended that all airlines ban （禁止） such devices from being used during “critical” stages of flight, particularly take-off and landing. Some exp

8、erts have gone further, calling for a total ban during all flights. Currently, rules on using these devices are left up to individual airlines. And although some airlines prohibit passengers from using such equipment during take-off and landing, most are reluctant to enforce a total ban, given that

9、many passengers want to work during flights. The difficulty is predicting how electromagnetic fields might affect an aircrafts computers. Experts know that portable device emit radiation which affects those wavelengths which aircraft use for navigation and communication. But, because they have not b

10、een able to reproduce these effects in a laboratory, they have no way of knowing whether the interference might be dangerous or not. The fact that aircraft may be vulnerable （易受损的） to interference raises the risk that terrorists may use radio systems in order to damage navigation equipment. As worry

11、ing, though, is the passenger who cant hear the instructions to turn off his radio because the musics too loud.21. The passage is mainly about _. A） a new regulation for al airlines B） the defects of electronic devices C） a possible cause of aircraft crashes D） effective safety measures for air flig

12、ht 22. What is said about the over 100 aircraft incidents in the past 15 years? A） They may have been caused by the damage to the radio systems. B） They may have taken place during take-off and landing. C） They were proved to have been caused by the passengers portable computers. D） They were suspec

13、ted to have resulted from electromagnetic interference. 23. Few airlines want to impose a total ban on their passengers using electronic devices because _. A） they dont believe there is such a danger as radio interference B） the harmful effect of electromagnetic interference is yet to be proved C） m

14、ost passengers refuse to take a plane which bans the use of radio and cassette players D） they have other effective safety measures to fall back on 24. Why is it difficult to predict the possible effects of electromagnetic fields on an airplanes computers?A） Because it is extremely dangerous to cond

15、uct such research on an airplane. B） Because it remains a mystery what wavelengths are liable to be interfered with. C） Because research scientists have not been able to produce the same effects in labs. D） Because experts lack adequate equipment to do such research. 25. It can be inferred from the

16、passage that the author _. A） is in favor of prohibiting passengers use of electronic devices completely B） has overestimated the danger of electromagnetic interference C） hasnt formed his own opinion on this problem D） regards it as unreasonable to exercise a total ban during flight It is one of ou

17、r problems that as we become crowded together, the sounds we make to each other, in our increasingly complex communication systems, become more random-sounding, accidental or incidental, and we have trouble selecting meaningful signals out of the noise. One reason is, of course, that we do not seem

18、able to restrict our communication to information-bearing, relevant signals. Given any new technology for transmitting information, we seem bound to use it for great quantities of small talk. We are only saved by music from being overwhelmed by nonsense. It is a marginal comfort to know that the rel

19、atively new science of bioacoustics must deal with similar problems in the sounds made by other animals to each other. No matter what sound-making device is placed at their disposal, creatures in general do a great deal of gabbling, and it requires long patience and observation to edit the parts lac

20、king syntax and sense.Somewhere, underlying all other signals, is a continual music. Termites （白蚁） make drumming sounds to each other by beating their heads against the floor in the dark, resonating corridors of their nest. The sound has been described as resembling, to the human ear, sand falling o

21、n paper, but spectrographic analysis of sound records has recently revealed a high degree of organization in the drumming; the beats occur in regular, rhythmic phrases, differing in duration, like notes for a kettledrum section.From time to time, certain termites make a jerky movement of their mandi

22、bles to produce a loud, high-pitched clicking sound, audible ten meters off. So much effort goes into this one note that it must have urgent meaning, at least to the sender. He cannot make it without such a wrench that he is flung one or two centimeters into the air by the recoil.There is obvious ha

23、zard in trying to assign a particular meaning to this special kind of sound and problems like this which exist throughout the field of bioacoustics. One can imagine a clear-headed visitor from outer space, interested in human beings, discerning on his spectrograph the click of that golf ball on the

24、surface of the moon, and trying to account for it as a call of warning （unlikely）, a signal of mating （out of question）, or an announcement of territory（could be）.1. According to the author, human sound communication _A. is more significant than animals sound communicationB. can only depend on techn

25、ology to transmit informationC. involves plenty of signals that make no senseD. is far from meaningful2. What does “small talk” in Para.1 mean?A. Its casual conversation.B. Its very short conversation.C. Its the conversation among very few people.D. Its the conversation among young people.3. We lear

26、n form Para. 2 that _. A. all the sounds made by animals are meaningful B. humans are better linguists than animals C. humans are happy to see that animals have the same sound problems D. bioacoustics can help decode the sounds of animals4. The beating sound of the termite _. A. has its own rhythms and connotations B. i