Each year there is an increasing number of cars on roads and streets as millions of new cars and trucks are produced. One out of every six Americans works at putting together the parts of cars, driving trucks, building roads or filling cars and trucks with gas.  

Most Americans would find it hard to imagine what life would look like without cars.  . The polluted air becomes poisonous and dangerous to health.

  . That’s what several of the large car factories have been trying to do. But to build a clean car is easier said than done. Progress in this field has been slow.

Another way is to take the place of the car engine by something else.   . Many makers believe that it will take years to develop a practical model that pleases man.

To prevent the world from being polluted by cars, we’ll have to make some changes in the way many of us live. Americans, for example, have to cut down on the number of their total cars. They are encouraged to travel and go to work by bicycle. Bicycling is thought to help the air clean. But this change does not come easily. A large number of workers may find themselves without jobs if a car factory closes down.  .

Although cars have led us to a better life, they have also brought us new problems.

A.Thus the problem of air pollution would become less important than that of unemployment.

B. Americans know cars very well.

C. However, some have realized the serious problems of the air pollution that is caused by cars.

D. One way to get rid of the polluted air is to build a car that does not pollute.

E. However, the number of vehicles has continued to increase in recent years.

F. Americans won’t live without cars!

G. Inventors are now working on steam cars as well as electric cars.

Each year there is an increasing number of cars on roads and streets as millions of new cars and trucks are produced. One out of every six Americans works at putting together the parts of cars, driving trucks, building roads or filling cars and trucks with gas.  1.

Most Americans would find it hard to imagine what life would look like without cars.  2.. The polluted air becomes poisonous and dangerous to health.

 3. . That’s what several of the large car factories have been trying to do. But to build a clean car is easier said than done. Progress in this field has been slow.

Another way is to take the place of the car engine by something else.  4. . Many makers believe that it will take years to develop a practical model that pleases man.

To prevent the world from being polluted by cars, we’ll have to make some changes in the way many of us live. Americans, for example, have to cut down on the number of their total cars. They are encouraged to travel and go to work by bicycle. Bicycling is thought to help the air clean. But this change does not come easily. A large number of workers may find themselves without jobs if a car factory closes down.  5..

Although cars have led us to a better life, they have also brought us new problems.

 

A.Thus the problem of air pollution would become less important than that of unemployment.

B. Americans know cars very well.

C. However, some have realized the serious problems of the air pollution that is caused by cars.

D. One way to get rid of the polluted air is to build a car that does not pollute.

E. However, the number of vehicles has continued to increase in recent years.

F. Americans won’t live without cars!

G. Inventors are now working on steam cars as well as electric cars.

 

Each year there is an increasing number of cars on roads and streets as millions of new cars and trucks are produced．One out of every six Americans works at putting together the parts of cars，driving trucks，building roads or filling cars and trucks with gas． 1  

Most Americans would find it hard to imagine what life would look like without cars． 2 ．The polluted air becomes poisonous and dangerous to health．

  3 ．That’s what several of the large car factories have been trying to do．But to build a clean car is easier said than done．Progress in this field has been slow．

Another way is to take the place of the car engine by something else． 4 ．Many makers believe that it will take years to develop a practical model that pleases man．

To prevent the world from being polluted by cars，we’ll have to make some changes in the way many of us live．Americans，for example，have to cut down on the number of their total cars．They are encouraged to travel and go to work by bicycle．Bicycling is thought to help the air clean．But this change does not come easily．A large number of workers may find themselves without jobs if a car factory closes down． 5 ．

Although cars have led us to a better life，they have also brought us new problems．

A．Thus the problem of air pollution would become less important than that of unemployment．

B．Americans know cars very well．

C．However，some have realized the serious problems of the air pollution that is caused by cars．

D．One way to get rid of the polluted air is to build a car that does not pollute．

E．However，the number of vehicles has continued to increase in recent years．

F．Americans won’t live without cars!

G．Inventors are now working on steam cars as well as electric cars．

Americans won’t live without cars! Each year there is an increasing number of cars on roads and streets, as millions of new cars are produced. One not of every six Americans work at putting together the parts of cars, driving trucks, building roads or filling cars with gas.

Most Amorists find it hard to think what life would be without a car. However, some have realized the serious problem of air pollution by cars. The polluted air is poisonous and dangerous to health.

One way to get rid of the polluted air is to design a new car that Does not pollute. That’s what several large car factories are trying to do. But to build the new car is easier said than done. Progress in this field has been slow.

Another way is to take place of the car engine by something else. Engineers are now working on some new cars. Many makers believe that it will take years to develop a practical model that pleases man.

To prevent the world from being polluted by cars, we’ll have to make some changes in the way many of us live. Americans, for example, have to cut down the number of their cars they are encouraged to travel and go to work by bike. Biding a bike is though to help keep the air clean.

But this change does not come cagily, a large number of workers may find themselves with no jobs if a ear factory closes down. And the problem of air pollution would become less important than that of unemployment.

1．How many ways to get rid of air pollution are suggested in this article by the writer?

      A．One.                   B．Two.                   C．Three.                 D．Four.

2．Large ear feretories are trying to build a clean car,        .

       A．which is clean itself                             B．which is used to clean streets

       C．which does not pollute the air                D．which is easier to make

3．If the number of ears is cut down, the most serious problem in American workers is       .

       A．to have no work to do                          B．to keep the air clean

       C．to get a better life                                 D．to go to work by bike

4．What is the conclusion of the writer?

      A．Bicycling is the only way out.

       B．The number of ears must be cut down.

       C．Cars bring us nothing but serious problems.

       D．Cars bring us not only a better life but serious problems.

根據(jù)短文內(nèi)容，從短文后的選項中選出能填入空白處的最佳選項。選項中有兩項為多余選項。
Each year there is an increasing number of cars on roads and streets as millions of new cars and trucks are produced. One out of every six Americans works at putting together the parts of cars, driving trucks, building roads or filling cars and trucks with gas.  1  
Most Americans would find it hard to imagine what life would look like without cars. 2 . The polluted air becomes poisonous and dangerous to health.
 3 . That’s what several of the large car factories have been trying to do. But to build a clean car is easier said than done. Progress in this field has been slow.
Another way is to take the place of the car engine by something else.  4 . Many makers believe that it will take years to develop a practical model that pleases man.
To prevent the world from being polluted by cars, we’ll have to make some changes in the way many of us live. Americans, for example, have to cut down on the number of their total cars. They are encouraged to travel and go to work by bicycle. Bicycling is thought to help the air clean. But this change does not come easily. A large number of workers may find themselves without jobs if a car factory closes down.  5 .
Although cars have led us to a better life, they have also brought us new problems.

A．Thus the problem of air pollution would become less important than that of unemployment.

B．Americans know cars very well.

C．However, some have realized the serious problems of the air pollution that is caused by cars.

D．One way to get rid of the polluted air is to build a car that does not pollute.

E. However, the number of vehicles has continued to increase in recent years.
F. Americans won’t live without cars!
G. Inventors are now working on steam cars as well as electric cars.

根據(jù)短文內(nèi)容，從短文后的選項中選出能填入空白處的最佳選項。選項中有兩項為多余選項。

Each year there is an increasing number of cars on roads and streets as millions of new cars and trucks are produced. One out of every six Americans works at putting together the parts of cars, driving trucks, building roads or filling cars and trucks with gas.  1  

Most Americans would find it hard to imagine what life would look like without cars. 2 . The polluted air becomes poisonous and dangerous to health.

 3 . That’s what several of the large car factories have been trying to do. But to build a clean car is easier said than done. Progress in this field has been slow.

Another way is to take the place of the car engine by something else.  4 . Many makers believe that it will take years to develop a practical model that pleases man.

To prevent the world from being polluted by cars, we’ll have to make some changes in the way many of us live. Americans, for example, have to cut down on the number of their total cars. They are encouraged to travel and go to work by bicycle. Bicycling is thought to help the air clean. But this change does not come easily. A large number of workers may find themselves without jobs if a car factory closes down.  5 .

Although cars have led us to a better life, they have also brought us new problems.

A．Thus the problem of air pollution would become less important than that of unemployment.

B．Americans know cars very well.

C．However, some have realized the serious problems of the air pollution that is caused by cars.

D．One way to get rid of the polluted air is to build a car that does not pollute.

E. However, the number of vehicles has continued to increase in recent years.

F. Americans won’t live without cars!

G. Inventors are now working on steam cars as well as electric cars.