(09·安徽E篇)

A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below l6℃. Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate. Without the forest cover,these areas would reflect more heat into the atmosphere,warming the rest of the world. Losing the rainforests may also influence wind and rainfall patterns,potentially causing certain natural disasters all over the world.

In the past hundred years,humans have begun destroying rainforests in search of three major resources(資源):land for crops,wood for paper and other products,land for raising farm animals. This action affects the environment as a whole. For example,a lot of carbon dioxide(二氧化碳)in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit.

There are two main reasons for this. Firstly,when people cut down trees,generally they can only use the land for a year or two. Secondly,cutting large sections of rainforests may provide a good supply of wood right now,but in the long run it actually reduces the world’s wood supply.

Rainforests are often called the world’s drug store. More than 25% of the medicines we use today come from plants in rainforests. However,fewer than l%of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in the world’s shrinking rainforests.

72. Rainforests can help to adjust the climate because they                .

A. reflect more heat into the atmosphere

B. bring about high rainfall throughout the world

C. rarely cause the temperature to drop lower than l6℃

D. reduce the effect of heat from the sun on the earth

73. What does the word “this” underlined in the third paragraph refer to?

A. We will lose much more than we can gain.

B. Humans have begun destroying rainforests.

C. People have a strong desire for resources.

D. Much carbon dioxide comes from burning rainforests.

74. It can be inferred from the text that

A. we can get enough resources without rainforests

B. there is great medicine potential in rainforests

C. we will grow fewer kinds of crops in the gained land

D. the level of annual rainfall affects wind patterns

75. What might be the best title for the text?

A. How to Save Rainforests

B. How to Protect Nature

C. Rainforests and the Environment

D. Rainforests and Medical Development

答案  72.D  73.A  74.B  75.C

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 (09·安徽D篇)

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D. less heat may be collected in winter than in summer

67. What is most likely to be discussed in the paragraph that follows?

A. What we shall do if the system goes wrong.

B. What we shall do if there are no asphalt roads.

C. How the system cools the building in summer.

D. How the system collects heat in spring and autumn.

68. Which of the following is true of the membership card?

A. Its number is l0865 305305.

B. It belongs to Mr. E. M. Driscoll.

C. It is valid through the year of 2010.

D. It gets the owner a discount when used.

69. If one wants to attend a business lunch in London at l2:00,the latest train that he should take at Oxford leaves at         .

A. 11:45            B. 11:15           C. 10:35           D. 10:05

70. If you would like to have some vegetable beef, what may be your choice?

A. French Slam®                        B. Chicken-Fried Steak®

C. The Super Bird®                        D. Sandwich with Salad or Soup®

71. The chart shows that from 2005 to 2008,         .

A. the percentage of the Spanish families with a computer rose 35 points

B. the percentage of the White families with a computer remained unchanged

C. the number of the Black families with a computer was on the decrease

D. the number of the Asian families with a computer showed the sharpest increase

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