完形填空：

阅读下面短文，掌握其大意，然后从1～10各题所给的四个选项中，选出一个最佳答．

　Water 　1 　about seventy percent of the earth's surface. There is water in seas, rivers, lakes, springs and wells. Water is found almost 　2 　. Even in the driest part of the world there is 　3 　in the air. You cannot see it 　4 　it when it is part of the air. The water in oceans and lakes and streams is a liquid. The water in the air is not a liquid 　5 　a gas. We call it water 　6 　.

　Water may be a liquid, or a solid, or a gas. When it is a 　7 　, it may be as hard as rock. When it is a 　8 　, you can pour it out of a container (容器). When it is a 　9 　, you cannot see it.

　Water is very important 　10 　things. Without water there can be no life on the Earth.

阅读理解

　We must have water to live. If the water we use is not clean and fresh, it can make us ill. The animals that live in and around lakes and rivers must also have clean water.

　　Our rivers and lakes supply most of our water. The clear , blue water found by the first American settlers has changed. Many of our water sources are now polluted. They are filled with dirty and waste which cannot be cleaned out . In many places, water is not safe for most uses.

　　Lake Erie was once a beautiful lake. Now it has been called ‘a dying lake’. Waste from nearly homes and factories has dumped into it. Fish can no longer live in much of its polluted water.

　　George Washington once called the Potomac ‘the finest river in the world’. Now its water is no longer blue. Instead, it is a soupy(羹汤类的) green . Suds (肥皂水), from detergents (清洁剂) used to wash clothes, often cover the water of our rivers.

　　Water cannot be made in a factory. Once water is polluted, it is hard to make it clean and safe. We must learn to take care of the water we now have.

1．Most of our water supply comes from ________.

[　　]

2．The words ‘ a dying lake’ in paragraph 3 mean ________.

[　　]

A．a polluted lake

B．a very large lake

C．a beautiful lake

D．a lake full of water

3．George Washington once called the potomac ‘the finest river in the world’ means ________.

[　　]

A．this river was not polluted

B．this river was visited by many people

C．this river was full of polluted water

D．the water in the river was used by everyone

4．We must learn to take care of the water now we have because ________.

[　　]

A．we can' t live without water

B．the water is to be used up

C．the water cannot be produced by man

D．both A and C

5．The passage chiefly tells us ________.

[　　]

A．not to use the polluted water

B．that we must prevent the water from being polluted

C．that the polluted water will make us ill

D．our water is still clean and safe

阅读理解

　We must have water to live. If the water we use is not clean and fresh, it can make us ill. The animals that live in and around lakes and rivers must also have clean water.

　　Our rivers and lakes supply most of our water. The clear , blue water found by the first American settlers has changed. Many of our water sources are now polluted. They are filled with dirty and waste which cannot be cleaned out . In many places, water is not safe for most uses.

　　Lake Erie was once a beautiful lake. Now it has been called ‘a dying lake’. Waste from nearly homes and factories has dumped into it. Fish can no longer live in much of its polluted water.

　　George Washington once called the Potomac ‘the finest river in the world’. Now its water is no longer blue. Instead, it is a soupy(羹汤类的) green . Suds (肥皂水), from detergents (清洁剂) used to wash clothes, often cover the water of our rivers.

　　Water cannot be made in a factory. Once water is polluted, it is hard to make it clean and safe. We must learn to take care of the water we now have.

1．Most of our water supply comes from ________.

[　　]

2．The words ‘ a dying lake’ in paragraph 3 mean ________.

[　　]

A．a polluted lake

B．a very large lake

C．a beautiful lake

D．a lake full of water

3．George Washington once called the potomac ‘the finest river in the world’ means ________.

[　　]

A．this river was not polluted

B．this river was visited by many people

C．this river was full of polluted water

D．the water in the river was used by everyone

4．We must learn to take care of the water now we have because ________.

[　　]

A．we can' t live without water

B．the water is to be used up

C．the water cannot be produced by man

D．both A and C

5．The passage chiefly tells us ________.

[　　]

A．not to use the polluted water

B．that we must prevent the water from being polluted

C．that the polluted water will make us ill

D．our water is still clean and safe

阅读下列短文，并做每篇后面的题目。从四个选项中选出能回答所提问题或完成所给句子的最佳答案。

We must have water to live. If the water we use is not clean and fresh ,it can make us ill. The animals that live in and around lakes and rivers must also have clean water.

Our rivers and lakes supply most of our water. The clear, blue water found by the first American settlers has changed. Many of our water sources are now polluted. They are filled with dirt and waste which cannot be cleaned out. In many places, water is not safe for most uses.

Lake Erie was once a beautiful lake. Now it has been called "a dying lake". Waste from nearly homes and factories has dumped into it . Fish can no longer live in much of its polluted water.

George Washington once called the Potomac "the finest river in the world". Now its water is no longer blue. Instead, it is a soupy (羹汤类的) green. Suds (肥皂水)  from detergents (清洁剂) used to wash clothes, often cover the water of our rivers.

Water cannot be made in a factory. Once water is polluted, it is hard to make it clean and safe. We must learn to take care of the water we now have.

1．Most of our water supply comes from ________.

[　　]

2．The words"a dying lake" in paragraph 3 mean ________.

[　　]

3． George Washington once called the Potomac "the finest river in the world"mean ________.

[　　]

A．this river was not polluted

B．this river was visited by many people

C．this river was full of polluted water

D．the water in the river was used by everyone

4．We must learn to take care of the water now we have because ________.

[　　]

A．we can't live without water

B．the water is to be used up

C．the water cannot be produced by man

D．both A and C

5．The passage chiefly tells us ________.

[　　]

A．not to use the polluted water

B．that we must prevent the water from being polluted

C．that the polluted water will make us ill

D．our water is still clean and safe

阅读下面短文, 掌握其大意, 然后从1-10各题所给的四个选项中, 选出一个最佳答案。　　 　　

    Water 1 about seventy percent of the earth's surface. There　　 is water in seas, rivers, lakes, springs and wells. Water is found　　 almost 2. Even in the driest part of the world there is 　　 3 in the air. You cannot see it 4 it when it is part of the air.　　 The water in oceans and lakes and streams is a liquid. The water in　　 the air is not a liquid 5 a gas. We call it water 　　 6.

　　     Water may be a liquid, or a solid, or a gas. When it is a 7, it may be as hard as rock. When it is a 　　 8, you can pour it out of a container(容器). When it is a　　 9 , you cannot see it.

　　     Water is very important 10 things. Without water there can be no life on the Earth.

(1)A. covers　　　　B. is covering    C. is covered　　D. covering 

[    ]

(2)A. anywhere　　  B. some places    C. everywhere　　D. nowhere

[    ]

(3)A. some waters   B. some water    C. little water  D. much water

[    ]

(4)A. and feel　　  B. or feel    C. and feeling   D. or feeling

[    ]

(5)A. except　　　　B. except for       C. but for　　   D. but

[    ]

(6)A. gas　　　　   B. gases    C. vapors　　   D. vapor 

[    ]

(7)A. gas　　B. solid　　C. liquid　　D. steam 

[    ]

(8)A. gas　　B. solid　　C. liquid　　D. steam

[    ]

(9)A. gas　　B. solid　　C. liquid　　D. water 

[    ]

(10)A. to live　　B. living    C. for lived  D. to living

[    ]