Antifreeze is a liquid(液體) that is added to water to keep it from freezing． When water freezes and turns to ice，it expands(膨脹)．The force of water expanding is so great that it will break the hardest metal．Water is used in car engines(發(fā)動(dòng)機(jī)) to keep them cool while they run，and if this water is allowed to freeze in winter it can break the iron block of the engine．That is why antifreeze is necessary．
Water freezes at 0℃；the usual kind of antifreeze will not freeze until the temperature is－40℃．A mixture(混合物) of five parts of water and four parts of antifreeze will prevent freezing at－18℃；four parts of water and five parts of antifreeze reduce this to －22℃．
Alcohol is a kind of good antifreeze，but when the air is running it becomes hot and the alcohol boils away，so it must be changed very often．Most people use antifreeze that does not boil away when the engine is running．There are several chemicals that do this．One of the most popular is called ethylene glycol．
【小題1】people use ________ to keep car engines cool．

A．a(chǎn)ntifreezeB．waterC．a(chǎn)lcoholD．ethylene glycol.
【小題2】The usual kind of antifreeze freezes at ________．
A．0℃B．－18℃C．－22℃D．－40℃
【小題3】We use antifreeze in order to ________．
A．keep alcohol in water
B．stop ice from becoming water
C．make the freezing point of water lower
D．raise the freezing point of water
【小題4】Besides alcohol，________ is another kind of popular antifreeze．
A．waterB．ethylene glycolC．a(chǎn)ny chemicalD．a(chǎn)ny mixture
【小題5】The text is written to ________．
A．tell us what antifreeze is
B．make people buy antifreeze
C．tell us that cars need antifreeze
D．show us how to protect car engines


【小題1】B
【小題2】D
【小題3】C
【小題4】B
【小題5】A

解析

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中英語 來源： 題型：閱讀理解


Antifreeze is a liquid(液體) that is added to water to keep it from freezing． When water freezes and turns to ice，it expands(膨脹)．The force of water expanding is so great that it will break the hardest metal．Water is used in car engines(發(fā)動(dòng)機(jī)) to keep them cool while they run，and if this water is allowed to freeze in winter it can break the iron block of the engine．That is why antifreeze is necessary．
Water freezes at 0℃；the usual kind of antifreeze will not freeze until the temperature is－40℃．A mixture(混合物) of five parts of water and four parts of antifreeze will prevent freezing at－18℃；four parts of water and five parts of antifreeze reduce this to －22℃．
Alcohol is a kind of good antifreeze，but when the air is running it becomes hot and the alcohol boils away，so it must be changed very often．Most people use antifreeze that does not boil away when the engine is running．There are several chemicals that do this．One of the most popular is called ethylene glycol．
【小題1】people use ________ to keep car engines cool．
A．a(chǎn)ntifreezeB．waterC．a(chǎn)lcoholD．ethylene glycol.
【小題2】The usual kind of antifreeze freezes at ________．
A．0℃B．－18℃C．－22℃D．－40℃
【小題3】We use antifreeze in order to ________．
A．keep alcohol in water
B．stop ice from becoming water
C．make the freezing point of water lower
D．raise the freezing point of water
【小題4】Besides alcohol，________ is another kind of popular antifreeze．
A．waterB．ethylene glycolC．a(chǎn)ny chemicalD．a(chǎn)ny mixture
【小題5】The text is written to ________．
A．tell us what antifreeze is
B．make people buy antifreeze
C．tell us that cars need antifreeze
D．show us how to protect car engines

查看答案和解析>>

科目：初中英語 來源：安徽省期中題 題型：閱讀理解

閱讀理解。
     Antifreeze is a liquid (液體) that is added to water to keep it from freezing. When water freezes and
turns to ice, it expands (膨脹). The force of water expanding is so great that it will break the hardest
metal. Water is used in car engines (發(fā)動(dòng)機(jī)) to keep them cool while they run, and if this water is allowed
to freeze in winter it can break the iron block of the engine. That is why antifreeze is necessary.
     Water freezes at 0℃；the usual kind of antifreeze will not freeze until the temperature is -40℃. A
mixture (混合物) of five parts of water and four parts of antifreeze will prevent freezing at -18℃; four
parts of water and five parts of antifreeze reduce this to -22℃.
     Alcohol is a kind of good antifreeze, but when the air is running it becomes hot and the alcohol boils
away, so it must be changed very often. Most people use antifreeze that does not boil away when the
engine is running. There are several chemicals that do this. One of the most popular is called ethylene
glycol.
1. People use _____ to keep car engines cool.
A. antifreeze
B. water
C. alcohol
D. ethylene glycol
2. The usual kind of antifreeze freezes at _____.
A. 0℃
B. -18℃
C. -22℃
D. -40℃
3. We use antifreeze in order to _____.
A. keep alcohol in water
B. stop ice from becoming water
C. make the freezing point of water lower
D. raise the freezing point of water
4. Besides alcohol, _____ is another kind of popular antifreeze.
A. water
B. ethylene glycol
C. any chemical
D. any mixture
5. The text is written to _____.
A. tell us what antifreeze is
B. make people buy antifreeze
C. tell us that cars need antifreeze
D. show us how to protect car engines

查看答案和解析>>

科目：初中英語 來源：福建省中考真題 題型：閱讀理解

閱讀理解。
     Antifreeze is a liquid (液體) that is added to water to keep it from freezing. When water freezes and turns
to ice, it expands (膨脹). The force of water expanding is so great that it will break the hardest metal. Water
is used in car engines (發(fā)動(dòng)機(jī)) to keep them cool while they run,and if this water is allowed to freeze in
winter it can break the iron block of the engine. That is why antifreeze is necessary.
     Water freezes at 0℃；the usual kind of antifreeze will not freeze until the temperature is －40℃. A
mixture (混合物) of five parts of water and four parts of antifreeze will prevent freezing at －18℃；four
parts of water and five parts of antifreeze reduce this to －22℃.
     Alcohol is a kind of good antifreeze, but when the air is running it becomes hot and the alcohol boils away,
so it must be changed very often. Most people use antifreeze that does not boil away when the engine is
running. There are several chemicals that do this. One of the most popular is called ethylene glycol.
1. People use ________ to keep car engines cool.
A. antifreeze
B. water
C. alcohol
D. ethylene glycol
2. The usual kind of antifreeze freezes at ________.
A. 0℃
B. －18℃
C. －22℃
D. －40℃
3. We use antifreeze in order to ________.
A. keep alcohol in water
B. stop ice from becoming water
C. make the freezing point of water lower
D. raise the freezing point of water
4. Besides alcohol, ________ is another kind of popular antifreeze.
A. water
B. ethylene glycol
C. any chemical
D. any mixture
5. The text is written to ________.
A. tell us what antifreeze is
B. make people buy antifreeze
C. tell us that cars need antifreeze
D. show us how to protect car engines

查看答案和解析>>

科目：初中英語 來源： 題型：閱讀理解

Antifreeze is a liquid(液體) that is added to water to keep it from freezing. When water freezes and turns to ice，it expands(膨脹). The force of water expanding is so great that it will break the hardest metal. Water is used in car engines(發(fā)動(dòng)機(jī)) to keep them cool while they run，and if this water is allowed to freeze in winter it can break the iron block of the engine. That is why antifreeze is necessary.

Water freezes at 0℃；the usual kind of antifreeze will not freeze until the temperature is －40℃. A mixture(混合物) of five parts of water and four parts of antifreeze will prevent freezing at －18℃；four parts of water and five parts of antifreeze reduce this to －22℃.

Alcohol is a kind of good antifreeze，but when the air is running it becomes hot and the alcohol boils away，so it must be changed very often. Most people use antifreeze that does not boil away when the engine is running. There are several chemicals that do this. One of the most popular is called ethylene glycol.

66. People use ________ to keep car engines cool.

A. antifreeze  B. water  C. alcohol  D. ethylene glycol

67. The usual kind of antifreeze freezes at ________.

A. 0℃  B. －18℃  C. －22℃  D. －40℃

68. We use antifreeze in order to ________.

A. keep alcohol in water 

B. stop ice from becoming water

C. make the freezing point of water lower 

D. raise the freezing point of water

69. Besides alcohol，________ is another kind of popular antifreeze.

A. water  B. ethylene glycol  C. any chemical  D. any mixture

70. The text is written to ________.

A. tell us what antifreeze is  B. make people buy antifreeze

C. tell us that cars need antifreeze  D. show us how to protect car engines

 

查看答案和解析>>

同步練習(xí)冊(cè)答案