摘要: autumn A) repair B) get a letter from C) the season after summer D) at last ( )

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Do you know why different animals or insects have their special colors? Colors are used mainly to protect themselves.

Why can’t some birds easily catch locusts(蝗虫)? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day and appear only at night.

If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals can’t be easily seen by hunters. This is because they have the colors much like the trees.

Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid when it faces danger. While the liquid spreads over, its enemies can’t find it. And it quickly swims away. So it has lived up to now though it is not strong at all.

1. From the article we learn that locusts          .

A. are dangerous to their enemies           B. are easily found by birds

C. change their colors to protect themselves   D. are small animals

2.How can insects with different colors from plants keep out of danger?

A. They have to move quietly.

B. They hide themselves in the day and appear at night.

C. They have the colors much like their enemies.

D. They run away quickly.

3. Bears and lions can keep safe because          .

A. they live in forests                  B. they like brown and grey colors

C. they move quietly                    D. they have the colors similar to the trees

4.What does the word “liquid” mean in the last paragraph?

A. 气体          B. 固体        C. 液体        D. 水蒸气

5. Which is the best title for this passage?

A. The Main Use of Colors for Animals and Insects

B. Colors of Different Animals and Insects

C. The Change of Colors for Animals and Insects

D. The Change of Different Animals and Plants

 

 

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Hello, Jenny,

  I love autumn!Mid-autumn Festival is this week.We will watch the moon tonight, and look for Chang'e and Wu Gang.My mother bought mooncakes, and I have eaten many of them!

  National Day is also in the autumn, on October 1.My mother and father will not have to work for three days!We will do many things together.I like going to the National Day celebration(庆祝).

  But the best thing in autumn is my birthday; it's in October.I will be fifteen years old.

  Good-bye for now,

  Li Ming

Dear Li Ming,

  Thank you for your e-mail!I love autumn, too.In Canada, we have an autumn holiday called Thanksgiving.Families always celebrate Thanksgiving together.I will go to my grandmother and grandfather's house.My uncles, aunts and their children will be there, too.

  Canadian Thanksgiving is in early October.In the U.S., they celebrate Thanksgiving in late November.

  Have a good time on your birthday, Li Ming!On my birthday, I have a cake with candles.Everyone sings“Happy birthday”.Then I blow the candles!Will you have cake on your birthday?

  Your friend,

  Jenny

(1)

When is Li Ming's birthday?

[  ]

A.

on September 29.

B.

in September.

C.

before September 29.

D.

after September 29.

(2)

How many days do Li Ming's parents rest(休息)during National Day?

[  ]

A.

3

B.

4

C.

7

D.

0

(3)

America celebrates Thanksgiving ________ later than Canada.

[  ]

A.

one month

B.

less than two months

C.

two months

D.

more than two months

(4)

What do Canadians usually do in Thanksgiving?

[  ]

A.

Eat cakes.

B.

Stay together.

C.

Watch the moon.

D.

Sing the song.

(5)

What must Li Ming and Jenny use when they write to each other?

[  ]

A.

Pens

B.

Paper

C.

Computers

D.

Telephones

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Do you know why different animals or insects have their special colors? Colors are used mainly to protect themselves.

Why can’t some birds easily catch locusts(蝗虫)? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day and appear only at night.

If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals can’t be easily seen by hunters. This is because they have the colors much like the trees.

Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid when it faces danger. While the liquid spreads over, its enemies can’t find it. And it quickly swims away. So it has lived up to now though it is not strong at all.

1. From the article we learn that locusts          .

A. are dangerous to their enemies           B. are easily found by birds

C. change their colors to protect themselves   D. are small animals

2.How can insects with different colors from plants keep out of danger?

A. They have to move quietly.

B. They hide themselves in the day and appear at night.

C. They have the colors much like their enemies.

D. They run away quickly.

3. Bears and lions can keep safe because          .

A. they live in forests                  B. they like brown and grey colors

C. they move quietly                    D. they have the colors similar to the trees

4.What does the word “liquid” mean in the last paragraph?

A. 气体          B. 固体        C. 液体        D. 水蒸气

5. Which is the best title for this passage?

A. The Main Use of Colors for Animals and Insects

B. Colors of Different Animals and Insects

C. The Change of Colors for Animals and Insects

D. The Change of Different Animals and Plants

 

 

查看习题详情和答案>>

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