Do you know why different animals or pests have their special colours? Colours in them seem to be used mainly to protect themselves.

Some birds like eating locusts. but birds cannot easily catch them. Why? It is because locusts change their colours together with the change of the colours of crops. When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown colour as crops have. Some other pests with different colours from plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night.

If you study the animal life, you'll find the main use of colouring is protecting themselves. Bears, lions and other animals move quietly through forests. They cannot be seen by hunters. This is because they have the colours much like the tree.

Have you ever noticed an even more strange act? A kind of fish in the sea can send out a kind of very black liquid when it faces danger. While the liquid spread over, the enemies cannot find it. And it immediately swims away. So it has lived up to now though it isn't strong at all.

From the passage we learn that locusts ___ .

A. are small animals

B. are easily found by birds

C. are dangerous to their enemies

D. change their colours to protect themselves

How can pests with different colours from plants keep out of danger?

A. They run away quickly.

B. They colours much like their enemies.

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

D. They have to move quietly.

Bears and lions can keep safe because they ___ .

A. have the colours much like the trees   B. move quickly

C. like brown and grey colours         D. live in forests

Which is the best title for this passage?

A. The Change of Colours for Animals and Pests

B. Colours of Different Animals and Pests

C. The Main Use of Colours for Animals and Pests

D. Some Animals and Pests


Some people think that all wild animals are dangerous. Actually, very few of them will attack a man if he leaves them alone. If you met a lion or an elephant, suppose, you would run away, but even a lion will keep away from a man unless it is very hungry. Lions and tigers only kill and eat men when they have grown too old and too weak to catch their usual food, such as deer and other small animals. If you saw a wild elephant, perhaps you would be frightened. Elephants usually run away at once unless you attack them. Some animals get very frightened if they only smell a man; some take no notice at all but quietly walk in another direction. Wild animals only attack hunters when they are afraid that the hunters mean to harm their young ones, or then the hunters shoot at them and make them angry.
60. The word attack is closest in meaning to ________.
A. hurt         B. catch             C. hit             D. follow
61. Lions and tigers will not kill or eat men ________.
A. unless men try to run away                 B. if they are too old and too weak
C. if they are able to get enough of their usual food  D. however men act towards them
62. Some animals run away when they smell a man probably because _________.
A. they dislike the smell               B. they think men are dangerous to them
C. they don't want to eat men           D. they want to eat weak men
63. This passage is mainly about _________.
A. how to protect wild animals              B. how animals look for their food
C. how to make friends with wild animals     D. how animals act towards men

Animals like the lion are known as carnivorous (meat-eating) animals. They feed on smaller animals. But many other animals eat grass or plants. They are called herbivorous (plant-eating) animals.
You may be surprised to learn that there are carnivorous plants as well as carnivorous animals. Plants that grow in poor soil need other food. They trap (catch by a trick) small insects (昆虫) and take their bodies as food.
The pitcher plant (猪笼草) is a common carnivorous plant. This plant has a clever trap like a pitcher or jar. It even has a lid to keep out of the rain. The mouth of the pitcher is covered with something sweet like honeydew(蜜露). Insects come to the plant to feed on the honeydew. When they have eaten all that is round the mouth, they go into the pitcher to look for more. There is more honeydew deep in the pitcher and they go down to feed on it. The inner wall of the pitcher is covered with fine hairs. These hairs point downwards so that the insects cannot climb out of the pitcher. They are trapped in it. They die there, and their bodies are taken as food by the plant.
【小题1】Animals are divided into two kinds.

A.carnivorous animals and meat-eating animals
B.herbivorous animals and plant-eating animals
C.carnivorous animals and herbivorous animals
D.meat animals and plant animals
【小题2】Which of the following is NOT true?
A.Tigers, lions and other meat-eating animals are called carnivorous animals.
B.Zebras, elephants and common farm animals are known as herbivorous animals.
C.All plants get food only from the soil.
D.It is something like honeydew in the pitcher that insects come to food on.
【小题3】From this passage, we can mainly learn that       .
A.Not all plants are carnivorous
B.All plants are herbivorous
C.Not all animals are carnivorous
D.Carnivorous plants can also be found
【小题4】The text mainly talks about ___________________.
A.carnivorous animalsB.herbivorous animals
C.small insectsD.pitcher plants
【小题5】What kind of magazine can we find the text?
A.BiologyB.GeographyC.PhysicsD.Chemistry

 

Some people think that all wild animals are dangerous. Actually, very few of them will attack a man if he leaves them alone. If you met a lion or an elephant, suppose, you would run away, but even a lion will keep away from a man unless it is very hungry. Lions and tigers only kill and eat men when they have grown too old and too weak to catch their usual food, such as deer and other small animals. If you saw a wild elephant, perhaps you would be frightened. Elephants usually run away at once unless you attack them. Some animals get very frightened if they only smell a man; some take no notice at all but quietly walk in another direction. Wild animals only attack hunters when they are afraid that the hunters mean to harm their young ones, or then the hunters shoot at them and make them angry.

60. The word attack is closest in meaning to ________.

   A. hurt         B. catch             C. hit             D. follow

61. Lions and tigers will not kill or eat men ________.

    A. unless men try to run away                 B. if they are too old and too weak

   C. if they are able to get enough of their usual food  D. however men act towards them

62. Some animals run away when they smell a man probably because _________.

   A. they dislike the smell               B. they think men are dangerous to them

   C. they don't want to eat men           D. they want to eat weak men

63. This passage is mainly about _________.

   A. how to protect wild animals              B. how animals look for their food

   C. how to make friends with wild animals     D. how animals act towards men

 

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