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The mammals (繁殖) when the animals, harmful to them, disappeared.

multiplied

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　　From the coldest arctic ice to the hottest deserts you will find mammals living and thriving(兴旺)．There seems to be no climate that they can't adapt to, however changeable it may be．Why can mammals adapt to so many different habitats? There is a good reason for this－mammals have the ability to keep their body at a constant temperature whatever the weather．They are “warm-blooded”．

　　Mammals achieve this by chemically “burning” their food as fuel inside their bodies．This is kept under tight control by a region of the brain that acts like a thermostat(恒温器), and this makes sure that the mammal's body temperature stays about the same．

　　A constant body temperature is a great advantage for mammals because all the chemical processes that go on inside a living body are likely to happen more slowly at low temperatures and faster at higher temperatures．Mammals can regulate their temperature at the best condition for all these processes, allowing them to be active at very cold or very hot periods and to keep up tiring activity for a long time．Animals such as lizards(蜥蜴)rely on moving in and out of the warm sunlight to regulate their body temperature．They slow down when they can't warm up and may die if they can't get away from heat．They also tend to overheat quickly when they are active as their muscles produce warmth．

　　Using food energy to keep body temperature constant is expensive, and since mammals need to be efficient at keeping the warmth they create inside themselves, they often have fur and a cover of fat under their skin to prevent heat from escaping．To help lose heat when they are too hot, they have sweat glands(汗腺)that take the heat away from the skin through evaporating(蒸发)water．This means, though, that they need to drink more than other animals．

(1)

Mammals can adapt to so many habitats because ________．
[　　]
A．	the climate is unchangeable
B．	they can regulate their body temperature
C．	they are “warm-blooded”
D．	their muscles produce warmth

(2)

When mammals keep their body at a constant temperature, ________．
[　　]
A．	the chemical processes happen more slowly in their bodies
B．	the chemical processes happen faster in their bodies
C．	they will use less fuel inside their bodies
D．	they can live an active life

(3)

We can infer from the last paragraph that mammals ________．
[　　]
A．	need to drink more than other animals
B．	have different ways of keeping their body temperature
C．	often have fur and fat to prevent heat from escaping
D．	have sweat glands that take the heat away from the skin

(4)

The writer answers the question raised in the first paragraph with ________．
[　　]
A．	stories and explanation
B．	examples and conclusion
C．	evidence and argument
D．	explanation and comparison

Sea lions and seals may swim in cold ocean water, but even they get chilly sometimes. Seeing an injured seal wrapped in a blanket at a marine(海的) mammal center gave Haley Humes and Hayley Jeffries an idea for a special Girl Scout project. They decided to make blankets to keep injured animals warm. They would give these blankets to the Pacific Marine Mammal Center in Laguna Beach, California.
“We knew we wanted to help animals,” Haley said. “We went to the center to ask questions about what they needed. They don’t have a heated floor, and all the babies crowded together to stay warm.”
Friends since kindergarten, Haley and Hayley made 12 blankets to keep the Marine Mammal Center’s seals and sea lions warm. Using fun images like Winnie-the-Pooh, the girls took two hours to make each blanket. The first sea lion to test out a blanket looked pretty in pink.
“It was a sick baby and really liked it,” Haley said. “It curled up in it right away.”
“The blankets are beautiful and the animals love them!” said the Mammal Center’s Michele Hunter. “It’s nice to see children taking pride in their work and doing something to help animals.”
During the project, the girls took dozens of pictures for the PowerPoint presentations they gave to Girl Scout leaders. Those presentations helped Haley and Hayley raise $250 to buy additional supplies the center needed.
This was the first project the girls ever worked on and took months to plan and carry out.
“I learned that in order to make something happen, you have to take it slowly and step by step,” Hayley said. Just as important, the girls discovered that two people really can make a difference. “Knowing you’re making a difference……with these animals is amazing,” Haley said. “It was like the animals became my new friends.”
The Pacific Marine Mammal Center cares for sea lions and seals, as well as for other marine mammals. Since opening in 1971,the center has saved more than 5,000 injured marine mammals.
【小题1】 What does the underlined word“ chilly” in Paragraph 1 mean?

【小题2】 When Haley and Hayley saw an injured seal wrapped in a blanket, they_____.

A．decided to help animals	B．asked Girl Scout for help
C．went to the animal center to work.	D．called on others to protect animals

【小题3】 What can we learn about Haley and Hayley from the text?

A．They raised $2,500 for the Mammal Center.

B．They made 120 blankets by themselves.

C．It took them an hour to make a blanket.

D．They felt great about what they did.

【小题4】 Which of the following words can best describe the work of Haley and Hayley?

【小题5】 According to the text, the Mammal Center_____.

A．has a history of about 40 years

B．has an advanced heating system

C．has saved ten thousand animals so far

D．protects both land and marine mammals

“We knew we wanted to help animals,” Haley said. “We went to the center to ask questions about what they needed. They don’t have a heated floor, and all the babies crowded together to stay warm.”

Friends since kindergarten, Haley and Hayley made 12 blankets to keep the Marine Mammal Center’s seals and sea lions warm. Using fun images like Winnie-the-Pooh, the girls took two hours to make each blanket. The first sea lion to test out a blanket looked pretty in pink.

“It was a sick baby and really liked it,” Haley said. “It curled up in it right away.”

“The blankets are beautiful and the animals love them!” said the Mammal Center’s Michele Hunter. “It’s nice to see children taking pride in their work and doing something to help animals.”

During the project, the girls took dozens of pictures for the PowerPoint presentations they gave to Girl Scout leaders. Those presentations helped Haley and Hayley raise $250 to buy additional supplies the center needed.

This was the first project the girls ever worked on and took months to plan and carry out.

“I learned that in order to make something happen, you have to take it slowly and step by step,” Hayley said. Just as important, the girls discovered that two people really can make a difference. “Knowing you’re making a difference……with these animals is amazing,” Haley said. “It was like the animals became my new friends.”

The Pacific Marine Mammal Center cares for sea lions and seals, as well as for other marine mammals. Since opening in 1971,the center has saved more than 5,000 injured marine mammals.

1. What does the underlined word“ chilly” in Paragraph 1 mean?

A．Sick.

B．Cold.

C．Afraid.

D．Bored.

2. When Haley and Hayley saw an injured seal wrapped in a blanket, they_____.

A．decided to help animals	B．asked Girl Scout for help
C．went to the animal center to work.	D．called on others to protect animals

3. What can we learn about Haley and Hayley from the text?

A．They raised $2,500 for the Mammal Center.

B．They made 120 blankets by themselves.

C．It took them an hour to make a blanket.

D．They felt great about what they did.

4. Which of the following words can best describe the work of Haley and Hayley?

A．Difficult.

B．Successful.

C．Experimental.

D．Dangerous.

5. According to the text, the Mammal Center_____.

A．has a history of about 40 years

B．has an advanced heating system

C．has saved ten thousand animals so far

D．protects both land and marine mammals

Sea lions and seals may swim in cold ocean water, but even they get chilly sometimes. Seeing an injured seal wrapped in a blanket at a marine(海的) mammal center gave Haley Humes and Hayley Jeffries an idea for a special Girl Scout project. They decided to make blankets to keep injured animals warm. They would give these blankets to the Pacific Marine Mammal Center in Laguna Beach, California.
“We knew we wanted to help animals,” Haley said. “We went to the center to ask questions about what they needed. They don’t have a heated floor, and all the babies crowded together to stay warm.”
Friends since kindergarten, Haley and Hayley made 12 blankets to keep the Marine Mammal Center’s seals and sea lions warm. Using fun images like Winnie-the-Pooh, the girls took two hours to make each blanket. The first sea lion to test out a blanket looked pretty in pink.
“It was a sick baby and really liked it,” Haley said. “It curled up in it right away.”
“The blankets are beautiful and the animals love them!” said the Mammal Center’s Michele Hunter. “It’s nice to see children taking pride in their work and doing something to help animals.”
During the project, the girls took dozens of pictures for the PowerPoint presentations they gave to Girl Scout leaders. Those presentations helped Haley and Hayley raise $250 to buy additional supplies the center needed.
This was the first project the girls ever worked on and took months to plan and carry out.
“I learned that in order to make something happen, you have to take it slowly and step by step,” Hayley said. Just as important, the girls discovered that two people really can make a difference. “Knowing you’re making a difference……with these animals is amazing,” Haley said. “It was like the animals became my new friends.”
The Pacific Marine Mammal Center cares for sea lions and seals, as well as for other marine mammals. Since opening in 1971,the center has saved more than 5,000 injured marine mammals

1.
What does the underlined word“ chilly” in Paragraph 1 mean?
1. A.
  Sick
2. B.
  Cold
3. C.
  Afraid
4. D.
  Bored
2.
When Haley and Hayley saw an injured seal wrapped in a blanket, they_____
1. A.
  decided to help animals
2. B.
  asked Girl Scout for help
3. C.
  went to the animal center to work
4. D.
  called on others to protect animals
3.
What can we learn about Haley and Hayley from the text?
1. A.
  They raised $2,500 for the Mammal Center
2. B.
  They made 120 blankets by themselves
3. C.
  It took them an hour to make a blanket
4. D.
  They felt great about what they did
4.
Which of the following words can best describe the work of Haley and Hayley?
1. A.
  Difficult
2. B.
  Successful
3. C.
  Experimental
4. D.
  Dangerous
5.
According to the text, the Mammal Center_____
1. A.
  has a history of about 40 years
2. B.
  has an advanced heating system
3. C.
  has saved ten thousand animals so far
4. D.
  protects both land and marine mammals

（贵州省兴义九中09-10学年高三上学期期中考试）

From the coldest arctic ice to the hottest deserts you will find mammals living and thriving（兴旺）. There seems to be no climate that they can’t adapt to , however changeable it may be. Why can mammals adapt to so many different habitats? There is a good reason for this – mammals have the ability to keep their body at a constant temperature whatever the weather. They are “warm-blooded”

Mammals achieve this by chemically “burning” their food as fuel inside their bodies. This is kept under tight control by a region of the brain that acts like a thermostat（恒温器）, and this makes sure that the mammal’s body temperature stays about the same.

A constant body temperature is a great advantage for mammals because all the chemical processes that go on inside a living body are likely to happen more slowly at low temperatures and faster at higher temperatures. Mammals can regulate their temperature at the best condition for all these processes, allowing them to be active at very cold or very hot periods and to keep up tiring activity for a long time. Animals such as lizards（蜥蜴）rely on moving in and out of the warm sunlight to regulate their body temperature. They slow down when they can’t warm up and may die if they can’t get away from heat. They also tend to overheat quickly when they are active as their muscles produce warmth.

Using food energy to keep body temperature constant is expensive, and since mammals need to be efficient at keeping to warmth they create inside themselves, they often have fur and a cover of fat under their skin to prevent heat from escaping. To help lose heat when they are too hot, they have sweat glands（汗腺）that take the heat away from the skin through evaporating（蒸发）water. This means, though, that they need to drink more than other animals.

64．Mammals can adapt to so many habitats because .

A．the climate is unchangeable

B．they can regulate their body temperature

C．they are “warm-blooded”

D．their muscles produce warmth

65．When mammals keep their body at a constant temperature, .

A．the chemical processes happen more slowly in their bodies

B．the chemical processes happen faster in their bodies

C．they will use less fuel inside their bodies

D．they can live an active life

66．We can infer from the last paragraph that mammals .

A．need to drink more than other animals

B．have different ways of keeping their body temperature

C．often have fur and fat to prevent heat from escaping

D．have sweat glands that take the heat away from the skin

67．The writer answers the question raised in the first paragraph with .

A．stories and explanation B．examples and conclusion

C．evidence and argument D．explanation and comparison

What does the underlined word“ chilly” in Paragraph 1 mean?

When Haley and Hayley saw an injured seal wrapped in a blanket, they_____

What can we learn about Haley and Hayley from the text?

Which of the following words can best describe the work of Haley and Hayley?

According to the text, the Mammal Center_____

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