All our food comes from the soil(土壤). Some of us eat meat, but animals live on plants. If there are no plants, we will have no animals and meat. So the soil is necessary for us to live.
The top of ground is usually covered with grass or other plants. Plants grow in soil, which has a dark color. This dark soil is humus. Dead leaves, dead plants and animals’ waste make it, but this takes a long time. When the humus has been made, plants can grow well in it.
All soil needs food. If we don’t give it any, the plants will be weak. Animals’ waste is the best food for the soil, but chemical fertilizers (化肥) are also very useful. The same crop (庄稼) should not be grown in the same place every year; it is better to have a different crop. A change of crop and the use of a good fertilizer will keep the land in good condition.
When the soil is dry, the wind blows it away. Sometimes heavy rain carries the humus down to a river. People should grow more and more trees and grass to stop wind from carrying the humus (腐殖土壤)away. It takes hundreds of years to make humus, and so we must save every bit of it. Without soil, where can we grow food? From the text, we know people live on ___________.
| A．animal | B．plant |
| C．meat | D．soil |
We should ___________ to keep the soil.
| A．give more fertilizers |
| B．grow a different crop every year |
| C．make more humus |
| D．grow more trees and grass |
We should save every bit of humus, because ___________.
| A．it takes a long time to make humus |
| B．sometimes the wind will blow the dry soil away |
| C．the chemical fertilizers are expensive |
| D．animals waste is the best food for the soil |
From the passage, we know that soil is ___________ to people.
| A．not helpful | B．necessary |
| C．not important | D．harmful |
Take a look at the label(标签) on almost any bottle of milk and you may see the word PASTEURIZED. What does that mean? Let’s find out by meeting Louis Pasteur.
Louis Pasteur was born in 1822 in a little town in France. As he grew up, he loved to paint. He loved to look at the world around him. When he went to college in Paris, he showed interest in looking through a microscope. A microscope makes things look a lot bigger; it lets you see things you can’t see just with your eyes. Looking through a microscope, Pasteur found a living world in a drop of water. He saw and drew pictures of the small living things -- he called them “microbes” or “germs”-- that crowded in a drop of water.
One day a winemaker came into the lab, hoping that someone could help him with his problem. “Sometimes my wine tastes delicious, but sometimes terrible,” he said to Pasteur. “Can you help me find out why?”
Pasteur put some drops of the wine under the microscope. He noticed that the terrible wine had some unusual germs. If he killed these germs, maybe he could keep the wine from turning terrible. He tried with different ways to kill the germs. In the end he found heating (加热) the wine seemed to work best. The winemaker tried it, and every bottle of wine tasted good.
Pasteur’s idea worked for other people, too. When farmers heated milk, it didn’t turn bad so quickly. When breweries heated beer, it tasted better. People called it “pasteurization” ---heating a liquid to kill bad germs. Aren’t you glad that the milk you drink has been pasteurized? The Chinese meaning for the word “microbes” is____.
| A．病毒 | B．真菌 | C．支原体 | D．微生物 |
Which is the right order in Pasteur’s life story?
(1). He received college education in Paris.
(2) He helped to find some unusual germs in some drops of wine.
(3) A new way of killing bad germs--pasteurization was found out.
(4)He was born in 1822 in a little town in France.
(5) Microbes were found by Louis Pasteur with the help of a microscope.
| A．2; 1; 3; 5; 4 | B．4; 1; 5; 2; 3 | C．4; 1; 3; 5; 2 | D．3; 1; 2; 5; 4 |
What do you think Louis Pasteur was like from the passage?
| A．Clever, helpful and hard-working. |
| B．Quiet, helpful and kind-hearted. |
| C．Brave, careful and hard-working. |
| D．Clever, serious and kind-hearted. |
Which of the following is TRUE according to the passage?
| A．Germs only live in something that is bad. |
| B．Louis found the way to kill the unusual germs in the wine by chance (偶然). |
| C．Everybody knows what the word PASTEURIZED means. |
| D．Pasteurization is used to kill bad germs in the milk we drink. |
What does the passage mainly tell us?
| A．What life Louis Pasteur lived. |
| B．How to make milk clean. |
| C．How pasteurization was invented. |
| D．What to do with wine. |
A Hard-working Student
This story is about a young student. She worked very hard at her lessons. She was too busy to have a rest. At last, she became ill, and couldn’t go to sleep. Every night, when she went to bed, she closed her eyes and tried to sleep. But the more she tried, the more she stayed awake.
After a while she went to see a doctor, “I just can’t go to sleep at night. What should I do?” “I have a suggestion (建议),” said the doctor, “Try counting numbers. By the time you reach one thousand, you will be asleep. I’m sure of it.”
The next day the student returned to the doctor’s office. “Well,” said the doctor, “How are you today? Did you try my suggestion?” The student still looked tired. “Yes,” she said, “I tried counting one, two, three...up to one thousand. But when I reached five hundred and sixty-nine, I began to feel sleepy. I had to get up and drink some coffee so that (以便) I could go on counting up to one thousand. But then I still couldn’t fall asleep.”
根据短文内容,选择正确答案。 Why couldn’t the young student go to sleep?
| A．She was worried about her lessons. |
| B．She hadn’t finished her homework. |
| C．She had worked too hard and became ill. |
| D．There was a lot of noise. |
What did the doctor ask the young student to do while she was lying in bed?
| A．To take some medicine. |
| B．To count numbers while she was lying in bed. |
| C．To count numbers before she went to bed. |
| D．To read some books on the bed. |
The underlined word “awake” in paragraph 1 means “______”.
| A．asleep | B．not asleep | C．sleepy | D．sleeping |
What did she do after she felt sleepy?
| A．She fell asleep. |
| B．She stopping counting. |
| C．She got up and drank some tea. |
| D．She got up to have some coffee. |
The coffee made her ______, so she still couldn’t fall asleep.
| A．tired | B．sleepy | C．hungry | D．excited |
A man lives in a very tall building. He has a lot of money and he has a parrot at home. It’s a clever bird.
Every morning, after the man gets up, the bird says “hello”. When the man comes back from his work, the bird says, “Is that you? Come here. I can see you.” One evening, when the man is sleeping, a thief comes into his building by climbing up the window. When he finds some money and begins to leave the house by climbing down through the window again, he hears a voice in the dark.
“Hello! Is that you? Come here. I can see you.” The thief is so frightened that he falls down from the window.. A parrot is kind of ________
| A．thing | B．bird | C．man | D．machine |
When does the parrot say “Hello!” to the man?
| A．After it gets up. | B．After the man gets up. |
| C．After the man goes to bed | D．After the man has breakfast. |
. When does the thief come?
| A．In the afternoon | B．In the morning |
| C．The man isn’t at home. | D．The man is asleep. |
The parrot is the man’s ________.
| A．neighbor | B．enemy | C．pet | D．servant |
What do you think of the thief at last?
| A．He leaves safely. | B．He climbs down the building. |
| C．He climbs down the ladder. | D．He died. |
An old engineer went suddenly blind. She promised a doctor a lot of money if he could make her see again. “If you fail,” she said, “you’ll get nothing.” The doctor agreed.
The doctor soon discovered what was wrong with her, but he decided not to cure her right away. Instead each time he visited, he secretly took some of her things. When he had taken away everything, he wanted to cure her blindness and asked for the money.
Now the old woman could see again, she noticed that all her things had gone and she refused to pay the money. So the doctor took her before a judge.
“What the doctor said is true,” she said to the judge. “But I say I was not well cured, because I still can’t see any of the things in my house.”
The old woman won the case and the doctor went away unhappily without getting his pay. What did the engineer promise the doctor if he failed to make her see again?
| A．A lot of money | B．Half of the money | C．No money | D．A little money |
The underlined word “discovered” in paragraph 2 means _______.
| A．found | B．caught | C．heard | D．covered |
What can you infer from the story?
| A．The old engineer lived alone |
| B．The old engineer lived with a servant. |
| C．The old engineer lived with her children. |
| D．The old engineer lived with a judge. |
What’s the result of the case?
| A．The engineer failed |
| B．The doctor failed to get the pay. |
| C．The doctor returned the things |
| D．The old engineer forgot her promise. |
. What kind of person was the old engineer?
| A．She was foolish. | B．She was kind. | C．She was clever | D．She was polite. |
Is there something strange high up in the world’s tallest mountains? If so, is it a big bear? Is it a monkey? Or is it a kind of man?
No one knows this mystery（谜）has puzzled the world for years.
In 1887, a mountain climber found large footprints（脚印）in the snow. They looked like the footprints of a very large man. But men don’t walk without shoes in the snow!
In 1906, another climber saw more than footprints. Far off, he saw a very large animal standing on two legs. When he watched, it ran very quickly.
Fifteen years later, newspaper had new stories about the “something”. A mountain climber said he had seen the “Snowman” walk slowly across the snow, far below him. He said it looked like a very large man.
From then on, more and more people had stories to tell. But not until 1951 did a mountain climber bring back pictures of large footprints. The pictures showed clearly that the Snowman walked on two legs. So it was not a bear or a monkey? Could it be an ape man? The mystery grew! And the mystery keeps growing. Somebody we may find out just what it is that makes the large footprints.The passage is about _________.
| A．some mountain climbers | B．some strange animals |
| C．some large footprints | D．the mystery of the Snowman |
Why were people interested in the footprints?
| A．They were footprints of a large bear. |
| B．They looked like the footprints of a large man. |
| C．People found them in the snow. |
| D．People found them in the world’s tallest mountains. |
A mountain climber took the pictures of large footprints in_______.
| A．1887 | B．1906 | C．1921 | D．1951 |
Why did the mystery grow when a mountain climber brought back pictures of large footprints?
| A．They were footprints of an ape man. |
| B．They were footprints of a Snowman. |
| C．The pictures showed clearly how the Snowman walked. |
| D．The pictures showed clearly how an ape man walked on two legs. |
Since a mountain climber first found the large footprints in the snow, the mystery of the Snowman has puzzled the world for over _______years.
| A．one hundred and ten | B．ninety-five | C．eighty | D．fifty |
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