It is often said that man has become the enemy of our planet. This is no exaggeration(夸张), for reports show that man’s greed has done much to destroy the earth. Man, in his greedy desire for financial growth, has polluted the air, land and water, and has robbed our valuable natural resources. Man’s industrial plants pour out poisonous waste that pollutes the sea and puts life in the sea under the threat of dying out; at the same time, they release alarming amounts of carbon dioxide, chlorofluorocarbons (CFCs) and other pollutants. Small wonder that the air now is much warmer and more impure than ever before.

Of course, this is not just because of man’s greed—it is man’s pressing need as well. For instance, in developing countries, huge financial foreign debts have forced governments to approve the cutting of forests for agriculture or ranching. As a result, forests are cut down just to meet man’s immediate needs.

Perhaps unknowingly，man has changed the make-up of the earth's atmosphere. Scientific studies have shown that CFCs used in refrigerators and industrial cleaners are fast destroying the ozone layer—a protective layer in the atmosphere that protects us against the harmful effects of the sun’s ultraviolet (紫外线)rays. In fact, documented reports have shown a terrible fact that there are “holes” in the ozone layer over the Antarctic. And they appear to be expanding.

Faced with these environmental problems, world leaders have shown deep concern. The UN Environmental Programme (UNEP) has arranged international agreements like the Vienna convention of 1985 and the Montreal Protocol of 1989 to preserve the ozone layer by controlling the production, use and trade of destructive chemicals.

There may be some doubt as to how effectual these agreements may be, given that some countries still maintain an “I-don’t-care” attitude. Their attitude is probably due to their failure to grasp the importance of the problem. Then, there is no doubt that environmental education on an international scale（规模）is greatly needed, so that all countries, great and small—the “haves” and the “have nots”—may realize their responsibilities for our planet.

In the meantime, the UNEP seems to have taken steps in the right direction, and it is hoped that in the not so distant future, all nations of the world will join hands in saving mother earth.

1.Which of the following is a reason for the cutting and burning of forests?

A. To build houses for more population.            B. To have land for agriculture.

C. To export trees to other countries.                           D. To build industrial plants. 

2.The holes in the ozone layer are largely due to________.

A. man’s research activities                                     B. the greenhouse effect

C. the ultraviolent                                                      D. harmful chemicals

3.Why don’t some countries care about the problem of the environment?

A. They don’t want to put their lives in danger.

B. They just don’t know how to solve the problem.

C. They haven’t realized the seriousness of the problem.

D. They don’t want to break their international commitment.

4.66. What is the author’s attitude towards the future of the environment?

A. Hopeful.                         B. Unconcerned                 C. Doubtful                          D. Objective

 

As rain begins to fall from the clouds, it is very pure. However, as it falls through the air it dissolves some of the gases in the air ,It also collects bits of dust and microbes(微生物)that are floating in the air, When the rain reaches the ground it begins to pick up more dust and dirt, Many kinds of mineral substances dissolve in the water ,Sand and nud cannot dissolve in water.

Since water is so important to us, it is very important that the water we use should be clean , Otherwise, we might get some of the diseases that are carried by water Many microbes are harmful ,They are so small that we cannot see them ,These microbes must be removed or killed before the water is not clean, people who drink this water may get these diseases, Thus , to provide people with clean water, the government purifies the water.

Purification is a long process and consists of three stages: storing ,purifying and distributing ,The first stage is storing , Man-made lakes called reservoirs are used for this purpose ,Water from the rains ,other lakes, streams and rivers is collected in the reservoirs ,This water is usually dirty and muddy.

In the second stage shich is purifying , water from the reservoirs is filtered in a special pond, Stones, sand and other unwanted tiny things are caught in it, After that, tiny microbes are still present in the water ,These microbes are removed by “airing ”the water and by adding a chemical substance called chloring(氯)to the water ,This kills all the microbes in the water ,A fter this the water can be safely used for drinking.

The third stage is the distribution of the purified water to homes ,hospitals, offices ,factories and other places, This is done through a network of pipes of various sizes, These pipes must be make of a suitable material.

1.From Paragraph 1, we can learn that           

A、Rain has contained gases when it forms in the clouds

B、Dust and microbes are dissolved in rain when rain falls on the ground

C、The closer rain is to the ground, the more impure things it contains

D、Sand and mud are things rain collects when it falls through the air

2.According to Paragraph 2 ,the following statements are wrong except that        

A、All the microbes in water are harmful so water must be purified

B、some diseases can spread through drinking water if it is not clean

C、Water is safe to drink if only harmful microbes are removed from it

D、it is the govrnment’s responsibility to make drinking water clean

3.What can we know about man-made lakes?

A、It is used through the whole process of purification

B、Only rain water can be collected and stored in it

C、Water collected can be stored and filtered in it

D、Water from them contains a lot of impure substances

4.What is the function of the chemical substance chlorine?

A、to air the water            B、to catch tiny things

C、to kill microbes             D、to remove harmful gases

5.What is probably this passage?

A、A news report     B、A book review     C、A magazine article       D、A school paper

 

It is often said that man has become the enemy of our planet. This is no exaggeration(夸张), for reports show that man’s greed has done much to destroy the earth. Man, in his greedy desire for financial growth, has polluted the air, land and water, and has robbed our valuable natural resources. Man’s industrial plants pour out poisonous waste that pollutes the sea and puts life in the sea under the threat of dying out; at the same time, they release alarming amounts of carbon dioxide, chlorofluorocarbons (CFCs) and other pollutants. Small wonder that the air now is much warmer and more impure than ever before.

Of course, this is not just because of man’s greed—it is man’s pressing need as well. For instance, in developing countries, huge financial foreign debts have forced governments to approve the cutting of forests for agriculture or ranching. As a result, forests are cut down just to meet man’s immediate needs.

Perhaps unknowingly，man has changed the make-up of the earth's atmosphere. Scientific studies have shown that CFCs used in refrigerators and industrial cleaners are fast destroying the ozone layer—a protective layer in the atmosphere that protects us against the harmful effects of the sun’s ultraviolet (紫外线)rays. In fact, documented reports have shown a terrible fact that there are “holes” in the ozone layer over the Antarctic. And they appear to be expanding.

Faced with these environmental problems, world leaders have shown deep concern. The UN Environmental Programme (UNEP) has arranged international agreements like the Vienna convention of 1985 and the Montreal Protocol of 1989 to preserve the ozone layer by controlling the production, use and trade of destructive chemicals.

There may be some doubt as to how effectual these agreements may be, given that some countries still maintain an “I-don’t-care” attitude. Their attitude is probably due to their failure to grasp the importance of the problem. Then, there is no doubt that environmental education on an international scale（规模）is greatly needed, so that all countries, great and small—the “haves” and the “have nots”—may realize their responsibilities for our planet.

In the meantime, the UNEP seems to have taken steps in the right direction, and it is hoped that in the not so distant future, all nations of the world will join hands in saving mother earth.

1.Which of the following is a reason for the cutting and burning of forests?

A. To build houses for more population.

B. To have land for agriculture.

C. To export trees to other countries.

D. To build industrial plants. 

2.The holes in the ozone layer are largely due to________.

A. man’s research activities                                B. the greenhouse effect

C. the ultraviolent                                                 D. harmful chemicals

3.Why don’t some countries care about the problem of the environment?

A. They don’t want to put their lives in danger.

B. They just don’t know how to solve the problem.

C. They haven’t realized the seriousness of the problem.

D. They don’t want to break their international commitment.

4.What is the author’s attitude towards the future of the environment?

A. Hopeful.                B. Unconcerned                          C. Doubtful                          D. Objective

 

The great advantage of the electric train over the steam train, I think, is that it does not smell．When a person is in a  1  drawn by a steam locomotive（机车），one always has the  2  smell of burning coal around one. If one opens the window to look out at the   3  and to get some fresh air, one is  4  with little bits of coal-ash which get into one’s hair and eyes, and soon force one to shut the window again and withdraw（退缩）into the  5  atmosphere of one’s compartment（车厢）. In a tunnel,  6  distress reaches a peak, for there the smoke is forced into a  7  area, from which it escapes into the train itself through any small cracks（缝隙）it may

 8 . In a long tunnel, the  9  grows worse and worse, while one’s eyes smart（刺痛）and the electric light in the carriage grows no longer  10  , hidden behind the smoke.

       With an electric locomotive, on the other hand, one can enjoy the view and the fresh air without inconvenience. I really think that one gets part of the extra  11  out of traveling through the Alps or Tyrol by train for the simple  12  that the trains there are  13  operated, so that the traveler who  14  become used to having his air dirtied by  15  and considers such a condition as  16 , believes that there is something extra-special about the Tyrolese air. Of course,  17  air is purer and fresher than the air of the plains,  18  the smoke of a steam train  19  not allow this condition to  20.

1．A．boat                      B．car                      C．train                    D．truck

2．A．slight                    B．sweet                  C．unpleasant           D．natural

3．A．view                     B．people                 C．wheels                D．street

4．A．finished                 B．left                      C．delighted             D．covered

5．A．impure                  B．friendly               C．informal              D．warm

6．A．one’s                    B．his                      C．its                       D．their

7．A．tidy                      B．open                   C．small                   D．special

8．A．have                     B．get                      C．receive                D．find

9．A．smell                    B．road                    C．noise                   D．scenery

10．A．blinding               B．bad                     C．dull                     D．bright

11．A．joy                      B．money                 C．time                    D．work

12．A．impression           B．rule                     C．theory                 D．reason

13．A．quickly                B．confidently          C．smoothly             D．electrically

14．A．will                     B．can                     C．has                     D．should

15．A．smoke                 B．sand                    C．dust                    D．gas

16．A．terrible                B．normal                C．disagreeable         D．unusual

17．A．village                 B．suburb                C．mountain             D．forest

18．A．but                     B．or                       C．for                      D．so

19．A．should                 B．would                 C．must                   D．need

20．A．improve              B．remain                 C．change                D．disappear

The great advantages of the electric train over the steam train, I think, are that it does not smell. When one is in a ( 1 ) drawn by a steam locomotive ( 机车 ) , one always has the (2) smell of burning coal around one . If one opens the window to look out at the  ( 3 ) and to get some fresh air , one is ( 4 )  with little bits of coal-ash which get into one ' s hair and eyes , and

soon force one to shut the window again and withdraw (退缩) into the ( 5) atmosphere of one ' s compartment (车厢) . In a tunnel ,（6）distress reaches a peak , for there the smoke is forced into a ( 7 ) area , from which it escapes into the train itself through any small cracks ( 缝隙 ) it may （8 ）. In a long tunnel , the （9 ）grows worse and worse , while one 's eyes smart (刺痛 ) and the electric light in the carriage grows no longer (10 ), hidden behind the smoke.

With an electric locomotive, on the other hand, one can enjoy the view and the fresh air without inconvenience. I really think that one gets part of the extra (11 ) out of traveling through the Alps or Tyrol by train for the simple  ( 12 ) that the trains there are  ( 13 ) operated , so that the traveler who ( 14 ) become used to having his air dirtied by ( 15 ), and considers such a condition as ( 16 ) , believes that there is something extra-special about the Tyrolese air . Of course, (17 ) air is purer and fresher than the air of the plains, (18 ) the smoke of a steam train (19 ) not allow this condition to (20) .

1．A．boat                      B．car                    C．train                 D．truck

2．A．slight                    B．sweet               C．unpleasant          D．natural

3．A．view                     B．people                 C．wheels                D．street

1,3,5

4．A．finished                 B．left                      C．delighted             D．covered

5．A．impure                 B．friendly               C．informal             D．warn

6．A．one's                    B．his                     C．its                      D．their

7．A．tidy                      B．open                   C．small                  D．special

8．A．have                    B．get                     C．receive               D．find

9．A．smell                    B．road                   C．noise                  D．scenery

10．A．blinding              B．bad                    C．dull                    D．bright

11．A．joy                     B．money                C．time                   D．work

12．A．impression           B．rule                     C．theory                 D．reason

13．A．quickly               B．confidently          C．smoothly            D．electrically

14．A．will                    B．can                    C．has                    D．should

15．A．smoke                B．sand                   C．dust                   D．gas

16．A．terrible               B．normal                C．disagreeable        D．unusual

17．A．village                B．suburb                C．mountain            D．forest

18．A．but                     B．or                      C．for                     D．so

19．A．should                 B．would                 C．must                  D．need

20．A．improve             B．remain               C．change              D．disappear