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When you watch TV programs about wild animals, it is surprising to see how an antelope (羚羊) can run away from a strong lion. In the wilderness, everyone has his own way to protect himself. Even plants have their own ways to fight off enemies.
Over millions of years, plants have developed their own defense system (防卫系统). Chemicals are fantastically used by plants to survive (幸存). By making their leaves, flowers, roots and fruits poisonous (有毒的) to enemies, plants can fight back.
One such plant is the Golden Wattle tree. The British scientist David Cameron has found when an animal eats the tree’s leaves, the amount (数量) of poison increases in the other leaves. “It’s like the injured leaves telephoning the others to fight together against the enemy,” he said.
The tree also sends defense messages to neighboring plants by giving out a special smell. Golden Wattle trees in the nearby 45 meters will get the message and produce more poison within 10 minutes. Now, if an enemy eats too many of the trees’ leaves, he will die.
Every kind of plant or tree is good at producing a special set of chemicals. Herbivores, like rabbits, can safely eat the leaves of one tree, but they may be poisoned by its neighbor.
In this way, plants have not only developed their own defense system, but also shared it with others. This makes it impossible for a single animal to destroy even a small area of forest.
1.From the first 2 paragraphs, we can learn that _________.
A. plants can do nothing against their enemies
B. chemicals are quite useful for plants to survive
C. an antelope can always run away from a strong lion
D. leaves, roots, flowers and fruits of plants are poisonous
2.If animals eat one Golden Wattle tree’s leaves, the tree can________.
A. kill the animals with a special smell
B. tell other trees to come to protect it
C. warn other trees against the animals on the phone
D. send defense messages to the neighboring plants
3.The underlined word “herbivores” in the 5th paragraph probably means animals which _____.
A．produce poison B．live on small animals
C．like to eat rabbits D．feed on plants or grass
4.The last paragraph of the passage suggests that this kind of defense system is ________.
A．bad for animals B．good for forests
C．helpful to some animals D．harmful to forests
5.The passage is mainly about __________.
A．the examples of protecting forests
B．the balance between animals and plants
C．the ways of plants fighting against enemies
D．the relationship between lions and antelopes
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When you watch TV programs about wild animals, it is surprising to see how an antelope (羚羊) can run away from a strong lion. In the wilderness, everyone has his own way to protect himself. Even plants have their own ways to fight off enemies.
Over millions of years, plants have developed their own defense system (防卫系统). Chemicals(化学物) are fantastically used by plants to survive . By making their leaves, flowers, roots and fruits poisonous (有毒的) to enemies, plants can fight back.
One such plant is the Golden Wattle tree. The British scientist David Cameron has found when an animal eats the tree's leaves, the amount (数量) of poison increases in the other leaves. "It's like the injured leaves telephoning the others to fight together against the enemy", he said.
The tree also sends defense messages to neighboring plants by giving out a special smell. Golden Wattle trees in the nearby 45 meters will get the message and produce more poison within 10 minutes. Now, if an enemy eats too many of the trees' leaves, he will die.
Every kind of plant or tree is good at producing a special set of chemicals. Herbivores, like rabbits, can safely eat the leaves of one tree, but they may be poisoned by its neighbor.
In this way, plants have not only developed their own defense system, but also shared it with others. This makes it impossible for a single animal to destroy even a small area of forest.
1.From the first 2 paragraphs, we can learn that_______.
A. plants can do nothing against their enemies
B. chemicals are quite useful for plants to survive
C. an antelope can always run away from a strong lion
D. leaves, roots, flowers and fruits of plants are poisonous
2.The underlined word "herbivores" in the 5th paragraph probably means animals which_______.
A. produce poison B. live on small animals
C. like to eat rabbits D. feed on plants or grass
3.The last paragraph of the passage suggests that this kind of defense system is_______.
A. bad for animals B. good for forests
C. helpful to some animals D. harmful to forests
4.The passage is mainly about_____________________.
A. the examples of protecting forests
B.the balance between animals and plants
C. the ways of plants fighting against enemies
D. the relationship between lions and antelopes
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When you watch TV programs about wild animals, it is surprising to see how an antelope can run away from a lion. In the wilderness, everyone has his own way to protect himself. Even plants have their own ways of fighting off enemies.
Over millions of years of evolution, plants have developed their own defence system(防御系统). Chemicals are wildly used for survival（生存）. By making their leaves, flowers, roots and fruits distasteful or poisonous(有毒的) to enemies, plants can fight back.
One such plant is the Golden Wattle tree. The British scientist David Cameron has found when an animal eats the tree’s leaves, the amount of poison increases in the other leaves. “It’s like the damaged leaves telephoning the others telling them to fight together against the enemy, ” he said.
The tree also sends defence messages to neighboring plants by giving out a special smell. Golden Wattle trees in the surrounding 45 meters will get the message and produce more poison within 10 minutes. Now, if an enemy eats too many of the trees’ leaves, it will die.
Every species of plant or tree is good at the production of a particular set of chemicals. A herbivore that can safely eat the leaves of one tree may be poisoned by its neighbor.
In this way, plants have developed not only individual defence system, but also shared it with others. This makes it impossible for a single animal to destroy even a small area of forest.
1.From the first 2 paragraphs,we can learn that________
A. plants can do nothing against their enemies.
B. Chemicals are quite useful for plants to survive.
C. An antelope can always run away from a strong lion.
D. Leaves,roots,flowers and fruits of plants are poisonous.
2.If animals eat one Golden Wattle tree’s leaves,the tree can________
A. kill the animals with special smell.
B. tell other trees to come to protect it.
C. warn other trees against the animals on the phone.
D. send defence messages to the neighboring plants.
3.The word “herbivore” in the 5th paragraph probably means animals which ____.
A. produce poison
B. live on small animals
C. like to eat rabbits
D. feed on plants or grass
4.The last paragraph of the passsage suggests that this kind of defence system is_____
A. bad for animals
B. good for forests
C. helpful to some animals
D. harmful to forests.
5.The passage is mainly about______
A. the example of protecting forests
B. the balance between animals and plants
C. the ways of plants fighting against enemies
D. the relationship between lions and antelopes
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—How do you like the TV program?
—I think it is the best program ________ I have ever watched.
A.who B.which C.that D.when
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Mariah Nablo is a sixteenyearold girl.When she was six，she watched a TV show.It talked about problems faced by mountain gorillas(山地大猩猩) in Africa.She learned that they were endangered because their living space was losing.The cause of this trouble was people illegally mining(非法采矿) for Coltan，a material used to make mobile phones.Mariah was so shocked by what she learned that she wanted to do something about it.But what?
Her inspiration came when she was visiting the Buffalo Zoo in Buffalo，New York.She saw a collection box with a sign that said，“Answer the call of the wild.Recycle mobile phones and help save gorillas.”This is when she learned about an organization called EcoCell.Through EcoCell，she realized that one way she could help protect gorillas was to collect mobile phones for recycling.This not only keeps mobile phones out of landfills(废物填埋地)，but helps cut down on the need for Coltan and illegal mining.So，at age 6，Mariah started to work with EcoCell.With the help of her parents，she also started her own project—Mariah Saves Gorillas.
Mariah's project，for the past 10 years，has collected thousands of mobile phones and kept ewaste out of landfills.And，recently，Mariah has been spending her time educating people about how recycling can save gorillas.
1.How did Mariah learn about the problem faced by mountain gorillas in Africa？(不超过5个词)
_________________
2.What can Coltan be used for？(不超过10个词)
_________________
3.What has Mariah been doing recently？(不超过15个词)
_________________
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—Have you watched the TV program “The Reader”?
—Certainly. About ________ students in our school watched it .
A. thousand of B. two thousand
C. two thousands D. two thousands of
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— Do you often watch the TV program Man and Nature?
— Sometimes. It’s an interesting program, but I ________ Sports News.
A．prefer B．want C．enjoy D．Miss
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— Have you watched ___ TV program Running Man?
— Yes, it’s so excellent that I want to watch it __ second time.
A. a; the B. a; an C. the; an D. the; a
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（2017·云南昆明·28）—Have you watched TV program named Chinese Poetry Competition?
—Yes. It's meaningful and ________.
A. I love it very much B. I don't like it C. she can't stand it D. he doesn't mind it
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——Have you watched the latest TV program Running Mat?
——Of course! It’s popular with__________the young________the old.
A.either; or B.neither; nor
C.both; and D.not; but