There was one thought that air pollution affected only the area immediately around large cities with factories and heavy traffic．At present, we realize that although these are the areas with the worst air pollution, the problem is really worldwide．On several occasions over the past decade，a heavy cloud of air pollution has covered the east of the United States and brought health warnings in distant areas away from any industrial cities．In fact，the very climate of the entire earth may be infected by air pollution．Some scientists consider that the increasing concentration of carbon dioxide in the air resulting from the burning of fossil fuels(coal and oil)is creating a “greenhouse effect”—— keeping heat reflected from the earth and raising the world’s average temperature．If this view is correct and the world's temperature is raised only a few degrees, much of the polar ice cap will melt and cities such as New York，Boston，Miami，and New Orleans will be in water．

Another view, less widely held, is that increasing particular matter in the atmosphere is blocking sunlight and lowering the earth’s temperature—a result that would be equally disastrous．A drop of just a few degrees could create something close to a new ice age，and would make agriculture difficult or impossible in many of our top farming areas．Today we do not know for sure that either of these conditions will happen．Perhaps，if we are lucky enough，the two tendencies will offset each other and the world's temperature will stay about the same as it is now．Driven by economic profits．people ignore the damage on our environment caused by the “advanced civilization”．Maybe the air pollution is the price the human beings have to pay for their development．But is it really worth-while?

66．People used to think that air pollution     .

A．caused widespread damage in the countryside

B．affected the entire eastern half of the United States

C．had a very bad effect on health

D．existed merely in urban and industrial areas

67．As to the greenhouse effect, the author     .

A．shares the same view with the scientists．

B．is uncertain of its occurrence

C．rejects it as being ungrounded

D．thinks that it will destroy the world soon

68．The underlined word “offset” in the second paragraph could be replaced by    .

A．counter-act    B．break from     C．get along    D．communicate

69．If the world's temperature lowered just a few degrees     .

A．it would not do much harm to life on earth

B．it would lead major farming areas to disaster

C．particular things would increase greatly in the atmosphere

D．seas and oceans would flood many cities

70．This passage is primarily about     .

A．the greenhouse effect                      B．the burning of fossil fuels

C．the potential effect of air pollution           D．the possibility of a new ice age

  

（云南省玉溪一中2010届高三上学期期中考试）

New Zealand is an island that lies off the eastern coast of Australia. It __36___ two large islands: North Island and South Island. New Zealand is surrounded by the Pacific Ocean ___37___ the north and east, and the Tasman Sea to the south and west. It is about the same size as the Philippines. Wellington___38___, the capital city, lies on the North Island. Other important ___39___ are Auckland in the north, Christchurch on the South Island and Queenstown, further to the south.

___40___has a mild sea climate, while the north is subtropical. It rains quite a lot. The warmest months are December to February. The coldest months are June to August.

The ocean and seas surrounding the islands are deep blue and many of New Zealand’s cities lie on a bay and have a natural deep ___41___. The sand beaches in New Zealand are also very ___42___. New Zealand has a very beautiful natural landscape with green hills and mountains. Some of the ___43___ are dead volcanoes. The North Island is famous for an area of ___44___, some of which throw hot water into the air. Some of this ___45___ near the earth’s surface is used to make electricity. There are many plants and ___46___ that only live in New Zealand. The most famous animal is a little bird that cannot fly. It is called a kiwi and it is New Zealand’s national bird.

The ___47___were the earliest people to come to New Zealand. When they discovered it about 1,000 years ago, they called it Aotearoa, which means “ Land of the long white cloud”. The Maori came from the islands of Polynesia in the ___48___. It is some 3,500 kilometers from Polynesia to New Zealand , which they crossed in narrow ___49___. They ___50___ dogs, rats and plants with them and settled mainly on the ___51___ where the weather was warmer. Around 1421, Chinese sailors possibly discovered the islands on one of their ___52___ around the word. The Dutchman Abel Tasman named the islands New Zealand in 1642. More than 120 years later, Captain James Cook took possession of the islands in 1769 and from that time British people started to settle in New Zealand. By 1840 about 2,000 ___53___, mainly British, had come to settle in New Zealand and the Maori signed an agreement with these settlers. That day is still celebrated as a national holiday. It is every year on the sixth of February. Today there are many people in New Zealand who call ___54___ “the home country”, although it is a place ___55___ most of them have never been.

36. A. consists of        B.is  made of              C. is  made from       D. is separated by

37. A. on                     B. in                          C. to                    D. off

38. A. London              B. Wellington         C. Auckland                 D. Queenstown

39. A. states                  B. seas                         C. cities                        D. states

40. A. Christchurch      B. South Island             C. North Island            D. New Zealand

41. A. harbour            B. city                     C. river                      D. beach

42. A. polluted              B. blue                         C. narrow                    D. clean

43. A. mountains           B. rivers                 C. beaches                   D. places

44. A. miners              B. hot springs               C. animals                    D. landscapes

45. A. spring               B. heat                        C. water                            D. land

46. A. beaches              B. birds                       C. animals                    D. people

47. A. Chinese              B. British                     C. Maori                      D. Europeans

48. A. Atlantic              B. Indian                  C. Arctic                      D. Pacific

49. A. buses                  B. boats                      C. ships                      D. planes

50. A. raised                B. bought                   C. brought                  D. took

51. A. North Island       B. South Island             C. Queenstown            D. New Zealand

52. A. travels               B. trips                        C. fights                            D. voyages

53. A. Europeans        B. Asians                  C. Chinese                  D. Englishmen

54. A. New Zealand       B. England                   C. China                      D. Island

55. A. which               B. that                      C. where                     D. what