相关习题
 0  26998  27006  27012  27016  27022  27024  27028  27034  27036  27042  27048  27052  27054  27058  27064  27066  27072  27076  27078  27082  27084  27088  27090  27092  27093  27094  27096  27097  27098  27100  27102  27106  27108  27112  27114  27118  27124  27126  27132  27136  27138  27142  27148  27154  27156  27162  27166  27168  27174  27178  27184  27192  151629 

科目: 来源: 题型:阅读理解

In the atmosphere , carbon dioxide acts rather like a one-way mirror or the glass in the roof of a greenhouse which allows the sun’s rays to enter but prevents the heat from escaping.

   According to a weather expert’s prediction, the atmosphere will be 3 ℃ warmer in the year 2050 than it is today, if man continues to burn fuels at the present rate. If this warming up took place, the ice caps in the poles would begin to melt, thus raising sea level several meters and severely flooding coastal cities. Also, the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere(半球), possibly resulting in an alteration of the earth’s chief food growing zones.

   In the past, concern about a man-made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet. But the weather experts are now paying more attention to West Antarctic, which may be affected by only a few degrees of warming, in other words, by a warming on the scale that will possibly take place in the next fifty years from the burning of fuels.

   Satellite pictures show that large areas of Antarctic ice are already disappearing. The evidence available suggests that a warming has taken place. This fits the theory that carbon dioxide warms the earth

   However, most of the fuel is burnt in the northern hemisphere, where temperatures seem to be falling. Scientists conclude, therefore, that up to now natural influences on the weather have gone beyond those caused by man. The question is: Which natural cause has most effect on the weather?

   One possibility is the variable behavior of the sun. Astronomers at one research station have studied the hot sports and ‘cold” spots( that is, the relatively less hot spots) on the sun. As the sun rotates(使旋转), every 27.5 days, it presents hotter or colder faces to the earth, and different aspects to different parts of the earth. This seems to have a considerable effect on the distribution of the earth’s atmospheric pressure, and consequently on wind circulation. The sun is also changeable over a long term: its heat output goes up and down in cycles, the latest trend being downward.

   Scientists are now finding shared relations between models of solar weather interactions and the actual climate over many thousands of years, including the last Ice Age. The problem is that the models are predicting that the world should be entering a new Ice Age and it is hot. One way of solving this theoretical difficulty is to assume a delay of thousands of years while the solar effects overcome the inertia(惯性) of the earth’s climate. If this is right, the warming effect of carbon dioxide might thus be serving as a useful opposed balance to the sun’s fading heat.

It can be concluded that concentration of carbon dioxide in the atmosphere would ____.

A. mean a warming-up in the Arctic.              

B. raise the temperature of the earth’s surface.

C. prevent the sun’s rays from reaching the earth’ s surface.

D. explain the cause of great changes in the climate in the northern hemisphere.

The article was written to explain____.

A. the greenhouse effect.          B. the solar effects on the earth.

C. the causes affecting weather.     D. the models of solar weather of solar weather interactions.

Although the fuel consumption is greater in the northern hemisphere, temperature there seems to be falling. This is ____.

A. mainly because the levels of carbon dioxide are rising

B. partly due to changes in the output of solar energy

C. possibly because the ice caps in the poles are melting

D. only due to the effect of the inertia of the earth’s climate

On the basis of their models, scientists are of the opinion that     .

A. the climate of the world should be becoming cooler

B. the new Ice Age will be delayed by the greenhouse effect

C. the man-made warning effect helps to increase the solar effects

D. it will take thousands of years for the interia of the earth’s climate to take effect.

If the assumption about the delay of a new Ice Age is correct, ___.

A. ice would soon cover the northern hemisphere.

B. the greenhouse effect could work in favor of the earth.

C. the best way to overcome the cooling effect would be to burn more fuels.

D. the increased levels of carbon dioxide in the atmosphere could warm up the earth even more quickly.

查看答案和解析>>

科目: 来源: 题型:阅读理解

第II卷 (非选择题, 共45分)

第四部分:书面表达(共两节,满分45分)

第一节:阅读表达(共5小题;每小题3分, 共15分)

阅读下面短文, 请根据短文后的要求进行答题。(请注意问题后的字数要求)

       [1]World Consumer Rights Day is celebrated annually by consumer organizations worldwide. It commemorates the historic declaration on March 15, 1962 by John F. Kennedy, the former U.S. President, of the basic Rights of consumers, which include: "the right to safety", "the right to be informed", "the right to choose", and "the right to be heard".  

[2]This declaration has led to international recognition by governments and the United Nations that all citizens, regardless of their incomes or social standing, have certain basic Rights as consumers. Officially, World Consumer Rights Day was first observed on March 15,1983 and has since become an important occasion for mobilizing citizen action, with recognition of consumer rights taking off around the world. On April 9,1985, the United Nations Assembly General Assembly adopted the UN Guidelines for Consumer Protection that provide a framework for strengthening national consumer protection policies around the world.  

[3]The guidelines included Kennedy's four basic consumer rights plus another four: the right to satisfaction of basic needs; the right to redress(赔偿); the right to education; and the right to a healthy environment. Currently, the fundamental consumer rights are recognized globally.

[4]World Consumer Rights Day normally has a theme associated with an activity or development that is relevant to consumers. Whatever their objectives, they share the same underlying aim of bringing about important and needed benefits for consumers.  

   [5]In recent years, progress has been made for recognition and protection of consumer rights in developing countries. At least, March 15 is a day when consumers are filled with pride and satisfaction. However, there are many reports on violation of consumer rights by unethical marketing practices.

76. What is the main idea of the passage? (Please answer within 10 words.)  _______________________________________________________________________________

77. What was John F. Kennedy mentioned in the first paragraph? (Please answer within 15 words.)

_______________________________________________________________________________78. Which of the sentence in the passage can be replaced by the given one?

   Presently, countries around the world acknowledge the basic consumer rights.  _____________________________________________________________________________

79. Please translate the underlined sentence in the second paragraph into Chinese.   ______________________________________________________________________________

80. What do you think will follow the passage? (Please answer within 20 words.)   ______________________________________________________________________________

查看答案和解析>>

科目: 来源: 题型:

第二部分:英语知识运用(共两节,满分35分)

第一节:语法和词汇(共15小题;每小题1分,满分15分)

从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

21. The growing interest in ____ history is clearly evident in ____ number of people visiting museums and country houses.

   A. 不填;不填                     B. 不填;the        C. the; the                    D. the; 不填

查看答案和解析>>

科目: 来源: 题型:

23. We went into a hall, on_____walls hung a few pictures of some famous scientists.

A. its                           B. which                      C. whose                      D. Those

查看答案和解析>>

科目: 来源: 题型:

26. -Do you know what Miss Black does for a living?

-I have no idea at all, I think she could be _______ but a singer.

A.anything                   B. anybody                   C. nothing                    D. Everybody

查看答案和解析>>

科目: 来源: 题型:阅读理解

第二节:完形填空(共20小题;每小题1.5分,满分30分)

阅读下面短文,从短文后所给各题的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。

A man had a little daughter--an only and much-loved child. He lived for her – she was his  36  . So when she became ill, he became like a man possessed, moving heaven and  37  to bring about her restoration to health.

His best efforts, however, proved  38  and the child died. The father became a bitter recluse, shutting himself  39  from his many friends and  40  every activity that might restore his poise (平静) and bring him back to his  41  self.   42  one night he had a dream.

He was in heaven, witnessing a grand pageant of all the little child  43  . They were marching  _44  a line passing by the Great White Throne. Every white-robed angelic child  45  a candle. He   _46  that one child’s candle was not lighted. Then he saw that the child with the  47  candle was his own little girl.  48  to her, he seized her in his arms, caressed her tenderly, and then asked, "How is it, darling, that your candle alone is  49 ?"

"Daddy, they often relight it, but your  50  always put it out. " Just then he awoke from his dream. The  51  was crystal clear (晶莹), and its effects were  52  .  53  that hour on he was not a recluse(隐者), but mingled freely and cheerfully with his  54  friends and associates. No longer would his darling’s candle be  55  by his useless tears.

36. A. time                   B. life                      C. possession          D. family

37. A. earth                 B. hospital           C. home                    D. field

38. A. good                B. hard               C. useless               D. useful

39. A. out                 B. down              C. up                D. away

40. A. agreeing              B. permitting                C. refusing                  D. joining

41. A. normal              B. regular             C. common          D. gentle

42. A. Therefore             B. So               C. But              D. As

43. A. girls                 B. angels            C. babies              D. gods

44. A. on                  B. at                 C. under                    D. in

45. A. took                   B. brought           C. carded             D. caught

46. A. noticed               B. observed          C. watched            D. recognised

47. A. light                B. dark               C. bright              D. black

48. A. Walking              B. Jumping           C. Rushing          D. Climbing

49. A. unlighted             B. burning           C. lit                 D. lighting

50. A. hearts               B. tears                C. wind               D. sweat

51. A. lesson               B. experience          C. dream            D. result

52. A. soon                B. fast              C. immediate          D. slow

53. A. After                B. Since                    C. From              D. In

54. A. former              B. older               C. regular             D. before

55. A. put on                B. put off             C. put up              D. pat out

查看答案和解析>>

科目: 来源: 题型:阅读理解

C

   Reading about history is nice, but finding ties to long-ago historical events in your own backyard is really exciting.

   In their heavily populated area, neighbors Adam Giles,13, and Derek Hann.12, uncovered pieces of glass that looked quite different from what’s used today.“After digging about two feet down, I came across an interesting bottle,” Derek said.The bottle had a “pontil scar” on the bottle, an indication that it was hand-blown rather than machine made.It also had the name “Fraser” on one side.

   Adam found remains of a green bottle and some very thick brown glass—again, far different from today’s.

   After doing research on the computer, the boys contacted Aimee Wells of the county’s Cultural Resources office.She showed them a computer program that digitally puts old maps over modern satellite photographs.

   Bingo! Their back yards were once part of a military(军事的) encampment(营地) called Camp Alger used by Ohio soldiers on their way to fight in the Spanish-American War in 1898.

   So how do a few bottles get connected to a brief war that was more than a century ago? “We get there by good judgment,” Wells said.“We know the time period of the bottles and what happened in that area.” Anyone can dig a hole, but archaeologists seek a deeper understanding.How do objects found relate to things around them?

   When Derek and Adam realized that a solider might have held that Fraser bottle 110 years ago, they wondered what he might have been thinking.What did he see as he looked around him? How did he pass the time waiting to go into battle?

   Historical records show that while waiting for orders, the soldiers in and around Camp Alger played baseball, played instruments and walked seven miles to the Potomac River once a week for baths.A spread of strange fever forced the closing of the camp, and there are no buildings to study.“What’s left is only what’s in the ground,” said Wells.

   Derek’s and Adam’s back yards have joined the 3,400 places listed on the county’s register of archaeological sites.The boys were given tips on how to dig effectively and safely, and on how to document the location of items found.

   The official record of their finds serves as another piece of the puzzle for historians seeking to form a more complete story of what happened.

   “Not everyone is going to have historical objects in their own yard,” Wells said.“That’s okay.Make your own time capsule and bury it.What would you want people to know about your life years from now?”

63.What is the passage mainly about?

       A.How Adam Giles and Derek Hann dug out the remains of an ancient military encampment.

       B.What Adam Giles and Derek Hann found in their back yard and its relationship with an encampment.

       C.The great contribution Adam Giles and Derek Hann made to the cause of archaeology.

       D.The tips on how to dig out ancient objects buried under the ground safely and effectively.

64.From the passage, we can see that the boy’s discovery _______.

       A.includes all kinds of hand-made and machine- made glass.

       B.has helped historians find out what happened in 1898.

       C.couldn’t have been meaningful without Aimee Wells’ help.

       D.has added the county to the list of archaeologist sites.

65.When Wells said “We get there by good judgment.” (Paragraph 6), she meant that_______.

       A.they have established the ties to Camp Alger by finding out the time period of the bottles.

       B.they have figured out how to get to the place where the brief war happened.

       C.they have managed to dig out the bottles in the back yard safely with common sense.

       D.they were able to locate the soldiers who used the Fraser bottles 110 years ago.

66.Which of the following fits the description of historical records?

       A.The soldiers in and around Camp Alger delighted in playing basketball in their spare time.

       B.When Camp Alger was forced to close, all the buildings there were destroyed.

       C.The soldiers in and around Camp Alger often buried some bottles underground as time capsules.

       D.Camp Alger was forced to close because of a spread of a strange fever.

查看答案和解析>>

科目: 来源: 题型:

 29.Internet,as well as newspapers and magazines,____an inportant part in our daily life.

    A. have played    B.are playing

C. is playing      D.has been played

查看答案和解析>>

科目: 来源: 题型:

9、The number of people invited ______ fifty, but a number of them _____ absent for different

reasons.

A.were, was    B. was, was    C. was, were    D. were, were

查看答案和解析>>

科目: 来源: 题型:

65. The boy was lucky enough ________.

A. to escape to be punished   B. escaping to be punished

C. to escape being punished   D. to escape punishing

查看答案和解析>>

同步练习册答案