题目内容
阅读理解
We sometimes say the lion is “the king of the jungle(丛林)” because it is stronger and more dangerous than the other animals. It can run faster than most other animals and it can hunt(捕猎) the best. The lion is the highest animal in the land food chain. In the sea, the shark is at the top of the food chain. It can swim faster than most other sea animals. It can also use its big teeth to catch other sea animals and eat them.
What is at the top of the world's food chain? People are! We are not the biggest or fastest, but we are the cleverest. We could not run faster than most animals, so we invented cars and now we can move the fastest. We could not fight better than a lion, so we invented guns. Now we can hunt the best.
People's inventions are clever, but they can be dangerous, too. For example, many years ago in Inner Mongolia, people used guns to kill a lot of wild wolves. The wild wolves usually eat wild rabbits. But in recent(近来的) years, the number of wild rabbits is becoming bigger and bigger because the number of wild wolves is getting smaller and smaller. The wild rabbits competed(竞争) for the grass with the sheep and cows. Much of the grassland became desert because it was seriously destroyed(毁坏) by the rabbits.
Remember that we are a part of the food chain, so we are in danger, too! If we protect animals, we are protecting ourselves.
1．How many kinds of food chains are mentioned in this passage?
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2．Why are people at the top of the world's food chain?
A．Because they can use guns.
B．Because they are the biggest.
C．Because they are the cleverest.
D．Because they can drive cars.
3．Which order of the pictures best describes the third paragraph?
4．In what way do we say people's inventions can be sometimes dangerous?
A．They can kill a lot of wild wolves.
B．They can destroy the food chain.
C．They can destroy the grassland.
D．They can make wild rabbits grow bigger and bigger.
5．What is the best title(标题) of the passage?
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
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.
1.From the first 2 paragraphs, we can learn that _________.
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
There is a zoo named Zhongshan in our city. There are many animals. Some animals are very friendly. But some other animals are not. Tigers, lions and some snakes are dangerous(危险的). That’s why they must be in cages(笼). But I don’t think it’s good for animals to be in cages. They need to be free. The animals in cages cannot be happy.
Tigers usually live in forests(森林)and mountains(高山). They are strong and can run very fast(快). They run after and eat small animals like rabbits and deer(鹿), but now they are in small cages. They have nothing to do every day. So they walk around in the cages, and they want to come out. When they are tired, they sleep. I am kind of sorry for them.
1.Why do tigers , lions and snakes have to stay in cages?
A. Because they are very dangerous.
B. Because they are very friendly.
C. Because they need to be free.
D. Because they like to be in cages.
2.Where do tigers usually live?
A. In cages.
B. In forests and mountains.
C. In the zoo.
D. In small rooms.
3.What do tigers usually do in forests?
A. They have nothing to do.
B. They walk around.
C. They want to sleep.
D. They run after and eat small animals.
4.Tigers want to ________ when they are in cages.
A. come out B. eat animals
C. run fast D. be friendly to people
5.Why does the writer feel sorry for the tigers in cages?
A. Because the writer thinks tigers need to eat food.
B. Because the writer thinks tigers are dangerous.
C. Because the writer thinks tigers need to be free.
D. Because the writer thinks tigers are very happy.
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