Accurate and inaccurate information is mixed so naturally that there are no reliable w
A、listed
B、twisted
C、copied
D、deleted
A、listed
B、twisted
C、copied
D、deleted
第3题
第4题
Conventional computer models of the atmosphere have limited value in predicting short lived local storms like the Edmonton tornado, because the available weather data are generally not detailed enough to allow computers to study carefully the subtle atmospheric changes that come before these storms.In most nations, for example, weather – balloon observations are taken just once every twelve hours at locations typically separated by hundreds of miles.With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events.
Until recently, the observation intensive approach needed for accurate, very short – range forecasts, or “Nowcasts,” was not feasible.The cost of equipping and operating many thousands of conventional weather stations was extremely high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were hard to overcome.Fortunately, scientific and technological advances have overcome most of these problems.Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observation over large regions at a relatively low cost.Communications satellites can transmit data around the world cheaply and instantaneously, and modern computers can quickly compile and analyze this large volume of weather information.Meteorologists and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly.As meteorologists have begun using these new technologies in weather forecasting offices, Nowcasting is becoming a reality.
11.The word “exceeded” in paragraph I most probably means ____________.
A.added up toB.were more than
C.were about D.were less than
12.Conventional computer models of the atmosphere fails to predict such a short – lived tornado because ______________.
A.the computer is not used to forecast specific local events
B.the computers are not advanced enough to predict it
C.the weather data people collect are often wrong
D.weather conditions in some small regions are not available
13.According to the passage, the word “Nowcast” (paragraph 3) means _______________.
A.a way of collecting raw weather data
B.a forecast which can predict the weather conditions in the small area in an accurate way
C.a network to collect instant weather data
D.a more advanced system of weather observation
14.According to the passage, ___________ is the key factor to making “Nowcasts” a reality.
A.scientific and technological advances such as radar, or satellites
B.computer scientist
C.meteorologists
D.advanced computer programs
15.According to the author, the passage mainly deals with ________________.
A.a tornado in Edmonton, Alberta
B.what’s a “Nowcast”
C.the disadvantage of conventional computer models of the weather forecast
D.a breakthrough in weather forecast
第5题
We judge race usually __42__ the coloring of the skin: a white race, a brown race, a yellow race and a black race. But __43__ you were to remove the skin you could not __44__ anything about the race to which the individual belonged. There is __45__ in physical structure. The brain or the internal organs to __46__ a difference.
There are four types of blood. __47__ types are found in every race, and n o type is distinct to any race. Human brains are the __48__. No scientists could examine a brain and told you the race to which the individual belonged. Brains will __49__ in size, but this occurs within every race. __50__ does size have anything to do with intelligence. The largest brain __51__ examined belonged to a person of weak __52__. On the other hand, some of our most distinguished people have had __53__ brains.
Mental tests which are reasonably __54__ show no differences in intelligence between races. High and low test results both can be recorded by different members of any race. __55__ equal educational advantages, there will be no difference in average standings, either on account of race or geographical location.
Individuals of every race __56__ civilization to go backward or forward. Training and education can change the response of a group of people, __57__ enable them to behave in a __58__ way.
The behavior. and ideas of people change according to circumstances, but they can always go back or go on to something new __59__ is better and higher than anything __60__ the past.
41. a. complete b. full c. total d. whole
42. a. in b. from c. at d. on
43. a. since b. if c. as d. while
44. a. speak b. talk c. tell d. mention
45. a. something b. everything
c. nothing d. anything
46. a. display b. indicate c. demonstrate d. appear
47. a. All b. Most c. No d. Some
48. a. same b. identical c. similar d. alike
49. a. remain b. increase c. decrease d. vary
50. a. Only b. Or c. Nor d. So
51. a. ever b. then c. never d. once
52. a. health b. body c. mind d. thought
53. a. big b. small c. minor d. major
54. a. true b. exact c. certain d. accurate
55. a. Provided b. Concerning
c. Given d. Following
56. a. make b. cause c. move d. turn
57. a. and b. but c. though d. so
58. a. ordinary b. peculiar c. usual d. common
59. a. that b. what c. whichever d. whatever
60. a. for b. to c. within d. in