Birds singing is sometimes a warning to other birds away. A. to stay B. staying C. stayed D. stay 题目和参考答案——青夏教育精英家教网—

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Birds singing is sometimes a warning to other birds _____ away.

A. to stay B. staying C. stayed D. stay

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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 (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 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 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.

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.

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

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.

One reason for birds’ singing at nesting season is that ______.

A. they want to invite more friends.

B. their singing helps frighten outsiders away.

C. they want to find outsiders around.

D. their singing helps get rid of their fears.

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.

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 of their own. Most of it has to do with attracting mates and setting up territories.

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

What does the underlined word “territory’’ mean?

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

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

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

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多于选项。

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. Do you know what a “territory” is? A territory is an area that an animal, usually the male, claims as its own. . 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 season. So he is screaming all the time, whether he can see an outsider or not.

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.

A. Only he and his family are welcome there. www.jk.zy.w.com

B. Most of it has to do with attracting mates and setting up territories.

C. Have you ever heard birds sing?

D. Their singing is actually a warning to other birds to stay out of their territory.

E. Have you ever wondered why birds sing?

F. Most of the language is widely used.

G. This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.

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（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 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.

56．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

57．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 .

58．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.

56．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.

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Have you ever wondered why birds sing? 1 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.

2 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 won. 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. 3 If so, you have actually scared the stranger away without having to fight him. 4 But he expects an outsider almost all the 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.

5 Most of it has to do with attracting males and setting up territories.

A. A bird does the same thing.

B. Maybe you thought that they were just happy.

C. Shouting loudly is just like a bird's screaming.

D. You can see that birds have a language all their own.

E. Probably this would be enough to frighten him away.

F. However they sing most of the time for a very different reason.

G. So, just like human beings, birds sing for almost the same reasons.

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