第3部分:概括大意与完成句子 (第23-30题,每题1分,共8分)
阅读下面这篇短文,短文后有2项测试任务:(1)第23-26题要求从所给的6个选项中为第2、3、5和6段每段选择1个正确的小标题;(2)第27-30题要求从所给的6个选项中选择4个正确选项,分别完成每个句子。请将答案涂在答题卡相应的位置上。
Robots
1 The most sophisticated(先进的)Japanese robots, which have vision systems and work at very high speeds, are still based on American designs. Studies of robots, particularly computer control software, are considered to be generally less advanced in Japan than in America or Europe.
2 Although industrial robots were originally developed as devices for simply handling objects, today their commonest uses are for more skilled work like welding (焊接), spray-painting and assembling components.
3 In Britain, robot sales appropriately peaked in 1984, but have been declining ever since. This is partly because British wage rates are too low to make robots financially attractive and partly because engineers now have more experience with robots and are more aware of the difficulties of introducing them effectively.
4 It has been calculated that a robot uses on average about 100 times more energy than a human to do an equivalent job.
5 It is estimated that 20% of all comic book heroes in Japan are robots. This is an enormous number because comics are so popular that they make up a third of all material published in Japan.
6 The reliability of robots is measured in their M.T.B.F. or mean time between failures. This has risen from about 250 hours in the mid-1970s to about 10,000 hours today (equivalent to working 18 hours a day for two years.) One way robot manufacturers have increased reliability is to test every single component they buy, instead of the normal procedure of just testing a small sample.
7 The biggest single benefit of introducing robots claimed by Japanese companies is that they increase quality control. Once programmed, the robots can work more accurately and consistently than humans, who can get tired and bored.
23. Paragraph 2 _____________
24. Paragraph 3 _____________
25. Paragraph 5 _____________
26. Paragraph 6 _____________
27. Even the most sophisticated Japanese robots are __________.
28. Robots are less popular in Britain today partly because ________.
29. One disadvantage of using robots is that they consume ___________.
30. The use of robots increases ___________.
A too much energy
B based on American designs
C they are too costly
D they are not reliable
E quality control
F free of charge
第4部分:阅读理解(第31-45题,每题3分,共45分)
下面有3篇短文,每篇短文后有5道题,每道题后面有4个选项。请根据文章的内容,从每题所给的4个选项中选择1个最佳答案,涂在答题卡相应的位置上。
第一篇 Eta Carinae
As possibly the galaxy’s (银河) most massive star, Eta Carinae is now engaging in some very unusual behaviour. Australian astronomers, being in the Southern Hemisphere (半球), are able to observe it clearly.
In the 19th century, Eta Carinae was for a time the third brightest star in the sky. It has now become less bright so that binoculars (双筒望远镜 )are needed to see it. "It seems to be brightening and becoming less bright over a period of many years", said Dr Bob Duncan from the Australia Telescope National Facility.
While it is not unusual for stars to vary in brightness, the period is usually much shorter. "Since 1992 it has become four times brighter, and then last year it began to drop dramatically," he said.
The problem in observing Eta Carinae is that it has been surrounded by a cloud of gas and dust, making it hard to see the star directly. However, radio waves and infrared light (红外线)can pass through this cloud, so telescopes that receive these wavelengths can observe what is occurring.
Eta Carinae is of particular interest to astronomers because it seems to be in its death throes(剧痛). Being so large it will end up as a supernova (超新星). There has not been a supernova in our galaxy since the invention of the telescope. While a 1987 explosion in a nearby galaxy gave astronomers plenty of valuable data, they are hungry for an even closer look.
Eta Carinae has other unique features, and is the only star known to produce an ultraviolet(紫外线)laser that is brighter than that produced by the Sun. Lasers have been observed in other frequencies from a few stars.
31. Eta Carinae is now engaging in
A. some very common behaviour
B. some very dull behaviour
C. some very frightening behaviour.
D. some very strange behaviour
32. The word "period" in Paragraph 3 means the length of time
A. over which star vary in brightness
B. for which Eta carinae’s brightening lasts.
C. Eta carinae takes to become a supernova.
D. it takes the laser from Eta carinae to travel to the earth.
33. Eta Carinae is hard to observe because
A. it is too far away.
B. there is too much dust and gas around it.
C. the binoculars are not powerful enough.
D. it does not send out infrared light.
34. Astronomers are particularly interested in Eta Carinae because
A. it is in its final stage.
B. it is a supernova.
C. it exploded in 1987.
D. it is brighter than the sun.
35. Which of the following statements about Eta Carinae is NOT true?
A. It will end up as a supernova.
B. It can be seen only through binoculars.
C. It is the only star that sends out an ultraviolet laser.
D. Its ultraviolet laser is brighter than that of the Sun.
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