摘要： How does the writer explain birds’ singing? A. By comparing birds with human beings. B. By reporting experiment results. C. By describing birds’ daily life. D. By telling a bird’s story. D When I was small and my grandmother died, I couldn’t understand why I had no tears. But that night when my dad tried to cheer me up, my laugh turned into crying. . So it came as no surprise to learn that researchers believe crying and laughing come from the same part of the brain. Just as laughing has many health advantages, scientists are discovering that so, too, does crying. Whatever it takes for us to reduce pressure is important to our emotionalhealth, and crying seems to study found that 85 percent of women and 73 percent of men report feeling better after crying. Besides, tears attract help from other people. Researchers agree that when we cry, people around us become kinder and friendly and they are more ready to provide support and comfort. Tears also enable us to understand our emotions better; sometimes we don't even know we' re very sad until we cry. We learn about our emotions through Crying, and then we can deal with them. Just as crying can be healthy, not crying - holding back tears of anger, pain or suffering - can be bad for physicalhealth, Studies have shown that too much control of emotions can lead to high blood pressure, heart problems and some other illnesses. If you have a health problem, doctors will certainly not ask you to cry. But when you feel like crying, don't fight it. It's a natural-and healthy-emotional response.

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　　Have you ever wondered why birds sing? Maybe you thought that they were just happy．After all, you probably sing or whistle(吹口哨)when you are happy．

　　Some scientists believe that birds do sing some of the time just because they are happy．However, they sing most of the time for a very different reason．Their singing is actually a warning to other birds to stay out of their territory．

　　Do you know what a “territory” is? A territory is an area that an animal, usually the male, claims(声称)as its own．Only he and his family are welcome there．No other families of the same species(物种)are welcome．Your yard and house are your territory where only your family and friends are welcome．If a stranger should enter your territory and threaten you, you might shout．Probably this would be enough to frighten him away．

　　If so, you have actually scared the stranger away without having to fight him．A bird does the same thing．But he expects no outsiders almost any time, especially at nesting(筑巢)season．So he is screaming all the time, whether he can see an outsider or not．This screaming is what we call a bird's song, and it is usually enough to keep an outsider away．

　　Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs．

　　You can see that birds have a language of their own．Most of it has to do with attracting mates and setting up territories．

(1)

Some scientists believe that most of the time birds' singing is actually ________．

[　　]

A．

an expression of happiness

B．

a way of warning

C．

an expression of anger

D．

a way of greeting

(2)

What is a bird's “territory”?

[　　]

A．

A place where families of other species are accepted．

B．

A place where a bird may shout at the top of its voice．

C．

An area for which birds fight against each other．

D．

An area which a bird considers to be its own．

(3)

Why do birds keep on singing at nesting season?

[　　]

A．

Because they want to invite more friends．

B．

Because their singing helps frighten outsiders away．

C．

Because they want to find outsiders around．

D．

Because their singing helps get rid of their fears．

(4)

How does the writer explain birds' singing?

[　　]

A．

By comparing birds with human beings．

B．

By reporting experiment results．

C．

By describing birds' daily life．

D．

By telling a bird's story．

(5)

Where will you probably find the passage?

[　　]

A．

A textbook

B．

A newspaper

C．

A science report

D．

A guidebook

 查看习题详情和答案>>

Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all, you probably sing when you are happy.
Some scientists believe that birds do sing some of the time just because they are happy. However, they sing most of the time for a very different reason. Their singing is actually a warning to other birds to stay out of their territory.
Do you know what a “territory” is? A territory is an area that an animal, usually the male, claims (声称) as its own. Only he and his family are welcome there. No other families of the same species are welcome. Your house is your territory where only your family and friends are welcome. If a stranger should enter your territory and threaten you, you might shout. Probably this would be enough to frighten him away.
If so, you have actually frightened the stranger away without having to fight him. A bird does the same thing. But he expects an outsider almost any time, especially at nesting (筑巢) season. So he is screaming all the time, whether he can see an outsider or not. This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.
【小题1】Some scientists believe that most of the time bird’s singing is actually ________.

A．an expression of happinessB． a way of warning
C．an expression of angerD． a way of greeting
【小题2】What is a bird’s “territory”?
A．A place where families of other species are not accepted.
B．A place where a bird may shout at the top of its voice.
C．An area for which birds fight against each other.
D．An area which a bird considers to be its own.
【小题3】Why do birds keep on singing at nesting season?
A．Because they want to invite more friends.
B．Because their singing helps frighten outsiders away.
C．Because they want to find outsiders around.
D．Because their singing helps get rid of their fears.
【小题4】How does the writer explain birds’ singing?
A．By comparing birds with human beings.
B．By reporting experiment results.
C．By describing birds’ daily life.
D．By telling a bird’s story.
【小题5】What does the underline word “screaming” in paragraph 4 mean?
A．哭喊声B．令人惊愕的C．尖叫声D．尖叫的

 查看习题详情和答案>>

Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all, you probably sing when you are happy.

Some scientists believe that birds do sing some of the time just because they are happy. However, they sing most of the time for a very different reason. Their singing is actually a warning to other birds to stay out of their territory.

Do you know what a “territory” is? A territory is an area that an animal, usually the male, claims (声称) as its own. Only he and his family are welcome there. No other families of the same species are welcome. Your house is your territory where only your family and friends are welcome. If a stranger should enter your territory and threaten you, you might shout. Probably this would be enough to frighten him away.

If so, you have actually frightened the stranger away without having to fight him. A bird does the same thing. But he expects an outsider almost any time, especially at nesting (筑巢) season. So he is screaming all the time, whether he can see an outsider or not. This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.

1.Some scientists believe that most of the time bird’s singing is actually ________.

A．an expression of happiness                B． a way of warning

C．an expression of anger                   D． a way of greeting

2.What is a bird’s “territory”?

A．A place where families of other species are not accepted.

B．A place where a bird may shout at the top of its voice.

C．An area for which birds fight against each other.

D．An area which a bird considers to be its own.

3.Why do birds keep on singing at nesting season?

A．Because they want to invite more friends.

B．Because their singing helps frighten outsiders away.

C．Because they want to find outsiders around.

D．Because their singing helps get rid of their fears.

4.How does the writer explain birds’ singing?

A．By comparing birds with human beings.

B．By reporting experiment results.

C．By describing birds’ daily life.

D．By telling a bird’s story.

5.What does the underline word “screaming” in paragraph 4 mean?

A．哭喊声           B．令人惊愕的        C．尖叫声           D．尖叫的

 

 查看习题详情和答案>>

   Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all, you probably sing or whistle when you are happy.

   Some scientists believe that birds do sing some of the time just because they are happy. However they sing most of the time for a very different reason. Their singing is actually a warning to other birds to stay out of their territory.

   Do you know what a ‘territory’ is? A territory is an area that an animal, usually the male, claims as its own. Only he and his family are welcome there. No other families of the same species are welcome. Your yard and house are your territory where only your family and friends are welcome. If a stranger should enter your territory and threaten you, you might shout. Probably this would be enough to frighten him away.

   If so, you have actually scared the stranger away without having to fight him. A bird does the same thing. But he expects an outsider almost any time, especially at nesting（筑巢）season. So he is screaming all the time, whether he can see an outsider or not. This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.

   Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs.

   You can see that birds have a language all their own. Most of it has to do with attracting mates and setting up territories.

1. Some scientists believe that most of the time bird’s singing is actually________.

A. an expression of happiness              B. a way of warning

C. an expression of anger                    D. a way of greeting

2. What is a bird’s ‘territory’?

A. A place where families of other species are not accepted.

B. A place where a bird may shout at the top of its voice.

C. An area for which birds fight against each other.

D. An area which a bird considers to be its own.

3. Why do birds keep on singing at nesting season?

A. Because they want to invite more friends.

B. Because their singing helps frighten outsiders away.

C. Because they want to find outsiders around.

D. Because their singing helps get rid of their fears.

4. How does the writer explain bird’s singing?

A. By comparing birds with human beings.         B. By reporting experiment results.

C. By describing birds’ daily life.                       D. By telling a bird’s story.

 查看习题详情和答案>>

Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all, you probably sing when you are happy.

Some scientists believe that birds do sing some of the time just because they are happy. However they sing most of the time for a very different reason. Their singing is actually a warning (警告) to other birds to stay out of their territory.

Do you know what a “territory” is? A territory is an area that an animal, usually the male, claims (声称) as its own. Only he and his family are welcome there. No other families of the same species are welcome. Your house is your territory where only your family and friends are welcome. If a stranger should enter your territory and threaten you, you might shout. Probably this would be enough to frighten him away.

If so, you have actually frightened the stranger away without having to fight him. A bird does the same thing. But he expects an outsider almost any time, especially at nesting (筑巢) season. So he is screaming (尖叫) all the time, whether he can see an outsider or not. This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.

Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs.

You can see that birds have a language all their own. Most of it has to do with attracting mates and setting up territories.

1．Some scientists believe that most of the time bird’s singing is actually ________.

       A．an expression of happiness                   B．a way of warning

       C．an expression of anger                         D．a way of greeting

2．What is a bird’s “territory”?

       A．A place where families of other species are not accepted.

       B．A place where a bird may shout at the top of its voice.

       C．An area for which birds fight against each other.

       D．An area which a bird considers to be its own.

3．Why do birds keep on singing at nesting season?

       A．Because they want to invite more friends.

       B．Because their singing helps frighten outsiders away.

       C．Because they want to find outsiders around.

       D．Because their singing helps get rid of their fears.

4．How does the writer explain birds’ singing?

       A．By comparing birds with human beings.

       B．By reporting experiment results.

       C．By describing birds’ daily life.

       D．By telling a bird’s story.

 查看习题详情和答案>>

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