Lions are opportunists．They prefer to eat without having to do too much work．When resting in the shade, they are also watching the sky to see what is flying by, and even in the heat of the day they 题目和参考答案——青夏教育精英家教网—

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　　Lions are opportunists．They prefer to eat without having to do too much work．When resting in the shade, they are also watching the sky to see what is flying by, and even in the heat of the day they will suddenly start up and run a mile across the plains to find out what is going on．If another animal has made a kill, they will drive it off and take the kill for themselves．A grown lion can easily eat 60 pounds of meat at a single feeding．Often they eat until it seems painful for them to lie down．

　　The lionesses, being thinner and faster, are better hunters than the males．But the males don’t mind．After the kill they move in and take the rest share．

Most kills are made at night or just before daybreak．We have seen many, many daylight attempts but only ten kills．Roughly, it’s about twenty daytime attempts for one kill．

　　When lions are hiding for an attack by a water hole, they wait patiently and can charge at any second．The kill is the exciting moment in the day-to-day life of the lion, since these great animals spend most of their time, about 20 hours a day, sleeping and resting．

　　Lions are social cats, and when they are having a rest, they love to touch each other．After drinking at a water hole, a lioness rests her head on another’s back．When walking, young lions often touch faces with older ones, an act of close ties among members of the group．

(1)

By describing lions as “opportunists” in the first paragraph, the author means to say that lions ________．
[　　]
A．	are cruel animals
B．	are clever animals
C．	like to take advantage of other animals
D．	like to take every chance to eat

(2)

According to the text, which of the following is true?
[　　]
A．	Lions make most kills in the daytime．
B．	Males care more about eating than active killing．
C．	Lions are curious about things happening around them．
D．	LIt doesn’t take lions too much time to make a kill．

(3)

How can we know that lions are social animals?
[　　]
A．	They depend on each other．
B．	They look after each other well．
C．	They readily share what they have．
D．	They enjoy each other’s company．

(4)

What would be the best title for the text?
[　　]
A．	Powerful Lions
B．	Lions at Work and Play
C．	Lions, Social Cats
D．	Lions, Skilled Hunters

答案：1．C;2．B;3．D;4．B;

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科目：高中英语 来源：2012届高三英语一轮复习精品同步练习(人教新课标)必修5　Unit 2　The United Kingdom 题型：050

阅读理解

　　What exactly are white lions? “They are a color variation of regular lions, ”says William Swanson, director of animal research at the Cincinnati Zoo, in Ohio．

　　White lions are the result of a rare color gene mutation(变异)．When both a male and a female lion carry the same white genes, there is a good chance that one or more of their cubs(幼兽)will be born with white fur．

　　Not many lions carry the white mutation．In nature, it’s rare．A mutation can make an animal’s survival more difficult．For example, being white makes it harder for the animal to mix with its surroundings．Mutations also can cause physical problems, so those animals generally do not survive long enough to reproduce．

　　But sometimes white lion cubs are born among wild lions, especially in two areas of South Africa．

　　In 1975 two white cubs were spotted in the wild in South African reserve．They were seized and sent to a zoo．Today about 500 cubs of those two white lions and a few others known to have the white color gene live around the world in zoos, circuses, farms and private preserves．

　　White lions may be extremely rare in the wild, but breeders(饲养动物的人)know how to create more of them．This has created serious concern and debate．

　　White lions continue to exist only because they are inbred by people－fathers and daughters, sisters and brothers．Scientists worry that it also will cause health issues for white lions．

　　Inbreeding to create white lions as moneymaking attractions is only one concern．Another concern is that some people want to release captive－bred(人工繁殖的)white lions into the wild in South Africa to restore balance to the ecosystem．However, not everyone agrees that releasing these white lions into the wild is a good idea．Dan York of Hillsdale College has been studying white lion genetics and is worried．He says that because so many of today’s white lions are inbred, it could spread health problems．If they breed with wild lions, they’ll pass on the genetic problems to the wild population．

　　Instead of releasing captive－bred white lions, York suggests that South Africa concentrate on protecting all of its wild lions．That would ensure the safety of the wild population of lions，which may produce healthy white cubs in the future．

(1)

It’s difficult for a white lion to survive because _________． a．its fur contrasts sharply with the surroundings b．the mutation may cause physical problems c．it is likely to be attacked by wild lions d．it is hunted by human beings
[　　]
A．	a; b
B．	a; d
C．	a; c
D．	b; d

(2)

What does the underlined word “inbred” in Paragraph 7 probably mean?
[　　]
A．	kept in enclosed space and unable to run away
B．	bred in human－controlled environments with restricted settings
C．	produced by breeding among closely related members
D．	born among wild lions and kept in the zoo

(3)

One of the reasons for inbreeding white lions is that _________．
[　　]
A．	they can bring people a profit
B．	their fur can be of great use
C．	people want to keep white lions as pets
D．	people want to study the genes of white lions

(4)

Which of the following agrees with Dan York’s opinion?
[　　]
A．	It’s useless studying white lion genetics．
B．	White lion cubs born among wild lions are more healthy than captive－bred ones．
C．	White lions shouldn’t be kept in zoos or circuses．
D．	The ecosystem in South Africa is being seriously damaged．

(5)

It can be inferred from the passage that _________．
[　　]
A．	white lions are seldom seen in the wild
B．	color gene mutation is common among lions
C．	South Africa is taking strict measures to protect its wild lions
D．	white lions will disappear from the earth soon

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阅读理解

　　The lionesses(母狮), being thinner and faster, are better hunters(猎手)than the males(雄狮)．But the males don’t mind．After the kill they move in and take the best share．

　　Most kills are made at night or just before daybreak．We have seen many, many daylight attempts but only ten kills．Roughly, it’s about twenty daytime attempts for one kill．

　　When lions are hiding for an attack by a water hole, they wait patiently and can charge at any second．The kill is the exciting moment in the day - to - day life of the lion, since these great animals spend most of their time, about 20 hours a day, sleeping and resting．

(1)

By describing lions as “opportunists” in the first paragraph, the author means to say that lions ________．
[　　]
A．	are cruel animals
B．	are clever animals
C．	like to take advantage of other animals
D．	like to take every chance to eat

(2)

According to the text, which of the following is true?
[　　]
A．	Lions make most kills in the daytime．
B．	Males care more about eating than active killing．
C．	Lions are curious about things happening around them．
D．	It doesn’t take lions too much time to make a kill．

(3)

How can we know that lions are social animals?
[　　]
A．	They depend on each other．
B．	They look after each other well．
C．	They readily share what they have．
D．	They enjoy each other’s company．

(4)

What would be the best title for the text?
[　　]
A．	Powerful Lions
B．	Lions at Work and Play
C．	Lions, Social Cats
D．	Lions, Skilled Hunters

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阅读理解

　　The lionesses, being thinner and faster, are better hunters than the males．But the males don't mind．After the kill they move in and take the best share．

　　Most kills are made at night or just before daybreak．We have seen many, many daylight attempts but only ten kills．Roughly, it’s about twenty daytime attempts for one kill．

(1)

By describing lions as“opportunists”in the first paragraph, the author means to say that lions ________．
[　　]
A．	are cruel animals
B．	are clever animals
C．	like to take advantage of other animals
D．	like to take every chance to eat

(2)

According to the text, which of the following is true?
[　　]
A．	Lions make most kills in the daytime．
B．	Males care more about eating than active killing．
C．	Lions are curious about other animals and people．
D．	It doesn't take lions too much time to make a kill．

(3)

How can we know that lions are social animals?
[　　]
A．	They often depend on lionesses．
B．	They look after each other well．
C．	They readily share what they have．
D．	They enjoy each other’s company

(4)

What would be the best title for the text?
[　　]
A．	Powerful Lions
B．	Lions at Work and Play
C．	Lions, Social Cats
D．	Lions, Skilled Hunters

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Do you know why different animals or pests (昆虫) have their special colors? Colors in them seem to be used mainly to protect themselves.

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A. are small animals B. are easily found by birds

C. are dangerous to their enemies D. change their colors to protect themselves

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

A. They run away quickly.

B. They have the colors much like their enemies.

C. They hide themselves by day and appear at night.

D. They have to move quietly.

3.Bears and lions can keep safe because _________.

A. they have the colors much like the trees B. they move quietly

C. they like brown and gray colors D. they live in forests

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A. Because it is very and strong.

B. Because the liquid it sends out can help it escape from its enemies.

C. Because the liquid it sends out can kill its enemies.

D. Because it swims faster than any other fish.

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B. Colors of Different Animals and Pests

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D. Some Animals and Pests

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