．Now natural disasters happen one after another, warns man to treat nature kindly.A．itB．thatC．whichD．as 题目和参考答案——青夏教育精英家教网—

阅读理解

　　In the atmosphere, carbon dioxide allows the sun’s rays to enter but prevents the heat from escaping．According to a weather expert’s prediction, the atmosphere will be 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．

　　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 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 part of the earth, where temperatures seem to be falling．Scientists conclude, therefore, that up to now natural influences on the weather have exceeded those caused by man．The question is：Which natural cause has most effect on the weather?

　　One possibility is the behavior of the sun．Astronomers at one research station have studied the hot spots and “cold” spots, that is, the relatively less hot spots, on the sun．This seems to have a greater effect on the distribution of the earth’s atmospheric pressure, and consequently on wind circulation(循环)．The sun is also variable(可变的)over a long term．Its heat output(输出)goes up and down in cycles．The latest trend being downward is on the way．But that is only a imagination．

(1)

The carbon dioxide in the atmosphere would _________．
[　　]
A．	prevent the sun’s rays from reaching the earth’s surface
B．	mean a warming up in the Arctic
C．	account for great changes in the climate
D．	raise the temperature of the earth’s surface

(2)

The article was written to explain _________．
[　　]
A．	the greenhouse effect
B．	the solar effects on the earth
C．	the solar weather
D．	the causes affecting weather

(3)

Although the fuel is greater in the northern part, temperatures there seem to be falling．This is _________．
[　　]
A．	mainly because the carbon dioxide is rising
B．	possibly because the ice caps in the poles are melting
C．	due to the effect of the earth’s climate
D．	partly due to the activity of the sun

(4)

What does the underlined word exceeded mean?
[　　]
A．	To be the same as．
B．	To be slower than．
C．	To be better than．
D．	To be bigger than．

读写任务(共1小题；满分25分)

阅读下面的短文，然后按照要求写一篇150词左右的英语短文。

In the atmosphere, carbon dioxide acts rather like a one-way mirror —— 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 metres and severely flooding coastal cities. Also, the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere, possibly resulting in an alteration of 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 exceeded those caused by man. The question is: Which natural cause has most effect on the weather?

【写作内容】

1.以约30个词概括短文的要点；

2. 然后以约120个词就“Solutions of slowing climate change”为主题写一篇短文，包括如下要点：

你认为地球会不会持续变暖；

其原因是什么以及人类在其中的作用；

谈谈你的建议。

【写作要求】

你可以使用实例或者其他论述方法支持你的观点，也可以参照阅读材料的内容，但不得直接引用阅读材料中的句子。

字迹清楚，书写工整。

【评分标准】概括准确，语言规范，内容合适，篇章连贯。

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 metres and severely flooding coastal cities. Also, the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere (北半球), 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 spots 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 not. 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 .

66. It can be concluded that a concentration of carbon dioxide in the atmosphere would_________.

A. mean a warming-up in the Antarctic

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

67.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 interactions

68. Although the fuel consumption is greater in the northern hemisphere, temperatures there　seem 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

69. On the basis of their models, scientists believe 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 warming effect helps to increase the solar effects

D. it will take thousands of years for the inertia of the earth's climate to take effect

70. 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

．Now natural disasters happen one after another, ______ warns man to treat nature kindly.

A．it

B．that

C．which

D．as

读写任务(共1小题；满分25分)

阅读下面的短文，然后按照要求写一篇150词左右的英语短文。

In the atmosphere, carbon dioxide acts rather like a one-way mirror —— 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 metres and severely flooding coastal cities. Also, the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere, possibly resulting in an alteration of 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 exceeded those caused by man. The question is: Which natural cause has most effect on the weather?

【写作内容】

1.以约30个词概括短文的要点；

2. 然后以约120个词就“Solutions of slowing climate change”为主题写一篇短文，包括如下要点：

(1) 你认为地球会不会持续变暖；

(2) 其原因是什么以及人类在其中的作用；

(3) 谈谈你的建议。

【写作要求】

(1) 你可以使用实例或者其他论述方法支持你的观点，也可以参照阅读材料的内容，但不得直接引用阅读材料中的句子。

(2) 字迹清楚，书写工整。

【评分标准】概括准确，语言规范，内容合适，篇章连贯。

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