摘要: be made of 用--制造的

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Water is very important to living things. Without water there can be no life on the earth. All animals and plants need water. Man also needs water. We need water to drink, to cool our food and to clean ourselves. Water is needed in offices, factories and schools. Water is needed everywhere.

There is water in seas, rivers and lakes. Water is found almost everywhere. Even in the driest part of the world, there is some water in the air. You cannot see or feel it when it is a part of the air. The water in the seas, rivers and lakes is a liquid. The water in the air is a gas, and we call it water vapor.

Clouds are made of water. They may be made of very small drops of water. They may also be made of snow crystals(结晶体).Snow crystals are very, very small crystals of ice. Ice is frozen water. It is a solid. There can be snow and ice everywhere in winter.

Water may be a solid or a liquid or a gas. When it is a solid, it may be as hard as a stone. When it is a liquid, you can drink it. When it is a gas, you cannot see or feel it.

1.Where can we find water?

A. We can find water when it turns into vapor.

B. Water can be found almost everywhere.

C. We can see water in deserts here and there.

D. Water is only in seas and rivers.

2.We can drink water      .

A. when it is a liquid                  B. when it is a solid

C. when it is in the air                  D. when it is turned into ice

3.Clouds are made of      .

A. seas, rivers and lakes

B. blocks of ice

C. water in its solid state

D. very small drops of water or snow crystals

4.Water has three states. They are      .

A. ice, snow and air                   B. solid, gas and vapor

C. solid, liquid and gas              D. drops, blocks and crystals

5.We must protect water resources because      .

A. crops need water                  B. all living things need water

C. all animals need water           D. all plants need water

 

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Read “Flags” and answer questions 1 to 5.

Flags

  Flags have existed for over 3000 years. The earliest flags were wooden or metal poles topped with a carving.

  About 2000 years ago pieces of fabric were added to some poles for decoration. Over the next 500 years the free-flying part of the flag became more important.

  Every country today has its own flag. Many groups and organisations also have a flag which stands for, or symbolises, the aims of the group.

  The United Nations

  The flag depicts a world map, centred on the north pole. The map is surrounded by an olive wreath, symbolising peace and co-operation. The flag is blue and white.

  Nepal

  This is the only national flag that is not a rectangle. The white shapes represent the sun and moon.

  Singapore

  The five stars stand for five ideals:democracy, peace, progress, justice and equality.

  Japan

  The central red disc of the sun represents sincerity and passion. The white background represents purity and honesty.

  Cambodia

  Three towers of the famous temple of Angkor Wat feature on this flag.

  Bhutan

  The wingless dragon is the national symbol. Bhutan means “Land of the Thunder Dragon”.

1.Flags have been in existence for ________.

[  ]

A.500 years

B.over 3000 years

C.about 2000 years

D.between 500 and 2000 years

2.A very old flag is likely to ________.

[  ]

A.be made of fabric

B.have a map on it

C.have white shapes on it

D.be made of carved wood

3.The flag which features a temple belongs to _______.

[  ]

A.Japan
B.Nepal
C.Singapore
D.Cambodia

4.An olive wreath is used to represent ________.

[  ]

A.peace
B.purity
C.justice
D.equality

5.Two flags that include the sun in their design belong to ________.

[  ]

A.Nepal and Japan

B.Singapore and Japan

C.the United Nations and Nepal

D.the United Nations and Singapore 查看习题详情和答案>>

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