题目内容

International communications have led to _______________________.

 A.using English widely.              B.English having used widely.

   C. English to be used widely.          D. English being used widely.

练习册系列答案
相关题目

One morning Raman, a true master of the art of archery(箭术), invited his favorite student to watch a display of his skill. The student had  36  this more than a hundred times before, but he still obeyed his  37  .

Together, they went into a nearby wood and reached a tall  38  . Raman picked a rose flower and  39  it on one of the branches of the tree. He  40  opened his bag and took out three objects: his  41  , an arrow and a white handkerchief.

   Raman stood one hundred paces from the spot where he had placed the  42  . Facing his target, he  43  his student to blindfold(蒙住眼睛) him with the handkerchief. The student did as his teacher   44  .

“How often have you seen me practice the sport of archery?” Raman asked him  45  .

“Every day,” replied his student. “And you have  46  managed to hit the rose from three hundred paces away.”

With his eyes covered by the  47  , Raman placed his feet firmly on the ground and  48  the bowstring(弓弦) with all his strength. Aiming at the rose on the  49  , he let the arrow fly. The arrow whistled through the air,  50  it did not even hit the tree, missing the target by a few meters.

“Did I   51  it?” said Raman, removing the handkerchief from his eyes.

“No, you missed   52 ,” replied the student. “I thought you were going to  53  me the power of thought and your ability to perform magic.”

“I have  54  taught you the most important lesson about the power of thought.” replied Raman. “When you  55  something, concentrate only on that: No one will ever hit a target they cannot see.”

36. A. thought          B. seen             C. heard         D. felt

37. A. teacher          B. boss            C. father         D. monitor

38. A. wall            B. tree             C. pole           D. house

39. A. buried         B. educated        C. signed       D. placed

40. A. first           B. now             C. then             D. finally

41. A. bow          B. hammer       C. apple            D. knife

42. A. arrow       B. shoe            C. flower         D. bag

43. A. advised         B. expected         C. encouraged      D. asked

44. A. planned         B. imagined       C. requested        D. promised

45. A. angrily              B. calmly        C. disappointedly  D. sadly

46. A. never         B. almost          C. always         D. also

47. A. cloth          B. handkerchief   C. paper            D. leaf

48. A. drew back     B. brought up      C. held back      D. took off

49. A. ground          B. branch         C. tip           D. root

50. A. and            B. for           C. so           D. but

51. A. touch         B. learn            C. miss            D. hit

52. A. completely   B. suddenly         C. quickly         D. carefully

53. A. show         B. give             C. offer            D. lend

54. A. again          B. even             C. just           D. seldom

55. A. buy           B. find             C. notice          D. want

The recent crash landing (强行着陆)of Russian spacecraft Phobos-Grunt has focused attention on the increasing amount of space junk orbiting the planet. So does this mean the Earth has been getting lighter? The BBC's Radio 4 programme More or Less turned to a group of Cambridge University academics for the answer.
   There are factors that are causing Earth to both gain and lose mass(物体的质量) over time, according to Dr Chris Smith, a medical microbiologist and broadcaster who tries to improve the public understanding of science.
    By far the biggest contributor to the world's mass is the 40,000 tonnes(公吨) of dust that is falling from space to Earth a year, says Dr Smith. "The Earth is acting like a giant vacuum cleaner(真空吸尘器)powered by gravity in space, pulling in particles of dust,"
   Another much less significant reason the planet is gaining mass is because of global warming.

"NASA has calculated that the Earth is gaining about 160 tonnes a year because the temperature of the Earth is going up. If we are adding energy to the system, the mass must go up," says Dr Smith.
    This means that in total between 40,000 and 41,000 tonnes is being added to the mass of the planet each year.
   Population growth and new buildings are not a factor, he says, because both of these are actually made up of existing matter on the planet.
   But overall, Dr Smith has calculated that the Earth - including the sea and the atmosphere - is losing mass. He points to a handful of reasons.
   For instance, the Earth's core (核心)is like a giant nuclear reactor (反应堆)that is gradually losing energy over time, and that loss in energy translates into a loss of mass. But this is a tiny amount - he estimates no more than 16 tonnes a year.
    But there are some gases such as hydrogen escaping from the atmosphere. Dr Smith says, " The Earth is losing about three kilograms of hydrogen gas every second. It's about 95,000 tonnes every year.”
   "The other very light gas this is happening to is helium(氦)and there is much less of that, so it's about 1,600 tonnes a year of helium that we lose."

72. We can learn from the text that Phobos-Grunt most probably _________.

   A. faced dangers when travelling in space             B. was forced to land by a terrorist

   C. bumped into a satellite                          D. exploded while taking off

73. What can we know about Dr Chris Smith?

   A. He is more interested in broadcasting than science.

   B. He is one of the broadcasters of BBC’s Radio 4.

   C. He never thought the earth would become light.

   D. He hopes more people can understand science

74. The underlined word “this” in the last paragraph refers to the fact that_______.

   A. the weight of the Earth is changing                

B. gases escape from the atmosphere  

   C. dust is falling from space to the Earth              

D. the Earth is getting even warmer

75. We can learn from the text___________.

   A. the Earth lost much less energy in the past 

B. humans can sense the weight loss of the Earth

   C. the Earth will become heavier in the near future

D. the Earth can suck up the particles of dust in space

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网