We’ve talked about snails (蜗牛) and their slow move. But much of the time snails don’t move at all. They’re in their shells ---sleeping .
Hot sun will dry out a snail’s body. So at the least sign of hot sun, a snail draws its body into its shell and closes the opening with a thin cover. Then it goes to sleep. A snail will die in a heavy rain. So whenever it rains, it goes inside its shell house and goes to sleep. A snail can sleep for as long as it needs to. It can take a short sleep. Or it can sleep for days at a time. And it spends all the winter months in its shell, asleep.
In spring the snail wakes up. Its body, about three inches long, comes out of from the shell. When hungry, the snail looks for food. It can’t see very well. Its eyes, at the ends of the top feelers are very weak. But its sense of smell is very strong. It helps the snail to the new greens. Then the snail’s little mouth goes to work.
A snail’s mouth is no longer than the point of a pin(针). Yet it has 256,000 teeth! The teeth are so small that you can’t see them. But they do their work.. If you put a snail in a hard paper box, it will eat its way out. And if a snail wears out its teeth, it will grow new ones.
Mostly, a snail looks for food at night .But on cloudy days it eats in the daytime. It eats all day long. A snail can go on eating for hours and never feel full.A snail__________.
| A．moves more slowly in the daytime | B．has thousands of feet |
| C．doesn’t move at all | D．sleeps much of the time |
In the sentence “A snail draws its body into its shell” the word “draw” means_________.
| A．to make with a pen | B．to keep away from |
| C．to pull | D．to move to end |
From the story we know_________.
| A．the snail’s shell is very thin |
| B．a snail can’t see well |
| C．the snail’s nose is quite short |
| D．the snail’s body changes in different seasons |
A snail goes to sleep when_________.
| A．it feels hungry | B．it is put in a paper box |
| C．spring is coming | D．it rains heavily |
Which of the following in not true?
| A．A snail doesn’t like living under the sun. |
| B．In winter the snail doesn’t eat or move. |
| C．The snail’s teeth can’t be worn out.. |
| D．The snail’s strong sense of smell helps to find things far away. |
Three kids have been learning chemistry for only a few months. But they have already begun to challenge (挑战) a world famous scientist!
Li Weichi, Huang Runling, and Xiao Yan are from Zhongshan Huaqiao Middle School in Guangdong. They have just found a red cabbage that could be a new kind of acid-base indicator (酸碱指示剂). They want it to take the place of litmus (石蕊) paper.
"We've learnt to think of and ask questions about life by ourselves," said Li, "We work well with each other."
British scientist Robert Boyle discovered the use of litmus paper over 300 years ago. Now it is used widely in experiments all over the world.
But when the kids did some experiments in class last winter, they saw that the litmus paper didn’t turn very blue with base matter. It's hard to get a clear result.
Will there be a better indicator than litmus paper? The three kids decided to try and find out!
How? They went to collect over 40 plants in parks, gardens and markets. Then they ground (研磨) leaves, flowers and stems (茎) to get the pigments (色素) from them.
The kids mixed pigments with acid and base. They spent months watching carefully to see which paper showed the best color change. They decided it was the litmus paper!
"It's our first scientific journey, Huang said, "But it makes me want to try harder."Whom did the three kids want to challenge?
| A．Their chemistry teacher. |
| B．Their headmaster. |
| C．Robert Boyle |
| D．Thomas Edison |
From the text, a red cabbage is a kind of ____.
| A．plant | B．animal | C．paper | D．liquid |
What is widely used as the acid-base indicator now?
| A．red cabbage | B．litmus paper |
| C．any plant | D．any flower |
The story mainly tells us ____.
| A．how to make litmus paper |
| B．about the three kids' spirit |
| C．scientists were wrong |
| D．the kids are heroes |
We sometimes call the lion “the king of the jungle (丛林)” because it is stronger and more dangerous than other animals. It can run faster than many animals and it can hunt (捕猎) the best. It is the highest animal in the 1 food chain (食物链).
In the sea, the shark is one of the animals at the 2 of the food chain. It can swim faster than most other sea animals, and it can use its big teeth to eat them.
What is at the top of the world’s food chain? 3 are! We are not the biggest or fastest, but we are the 4 We could not run faster than cheetahs (猎豹), so we 5 cars and now we can move the fastest. We could not 6 better than lions, so we invented guns (枪). Now we can hunt the best.
People’s inventions are clever, but they can be dangerous, too. For example, people invented 7 , and now they make the air and rivers dirty. This can make 8 changes. Dirty rivers kill fish. Then bears cannot eat the fish and the bears die. If we kill one part of the food chain, 9 also die. Remember that we are a part of the food chain, so we are in danger too! If we protect animals, we are protecting 10 ! We should and we could do something for the world!
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One of the most popular items(项目) in the school newspaper is the advice column. No one knows who writes it. The students think their teacher does, but it might be a student using a false name.
The students enjoy thinking up problems for the advice column. Here are some of them and their answers.
Ask the Wise Owl
Q: I’m always late for school. I try not to be, but I can’t help it. Please advise me what to do. Tommy.
A: You are probably late for school because you don’t really like school. My advice to you is to try and enjoy school more, then you won’t be late so often.
Q: I find it difficult to make friends. What do you think I should do? Sara.
A: I can’t advise you until I know more about you. Your problem may be that you are shy. On the other hand, it may be the opposite. You may be too bold(冒失). Write and tell me more about yourself.
Q: I’m always at the bottom(底部，末尾) of the class. What do you advise me to do? Molly.
A: I advise you to concentrate on(全神贯注) improving your grades in one subject to start with. If you can do this, you should move a little way up from the bottom. Next, try to improve your grades in another subject, and so on. If you concentrate on one subject at a time, by the end of the year you should be quite a long way up from the bottom in all your classes.What is Tommy’s problem?
| A．He needs help with his homework. |
| B．He finds it difficult to make friends. |
| C．He is always late for school. |
| D．He is always at the bottom of his class. |
What does Molly want to do?
| A．To stay at the bottom of her classes. |
| B．To make more friends. |
| C．To concentrate on one subject at a time. |
| D．To improve her grades. |
What does the Wise Owl want Sara to do?
| A．Give more information about herself. |
| B．Stop being so shy. |
| C．Make more friends. |
| D．Stop being so bold. |
By the end of the year, where should Molly be in all her classes?
| A．At the top. |
| B．Quite a long way up from the bottom. |
| C．At the bottom. |
| D．A little way up from the bottom. |
What is the main idea of this passage?
| A．Sara finds it difficult to make friends. |
| B．Tommy wrote to the school newspaper to ask for advice. |
| C．The advice column in the school newspaper is very popular. |
| D．The school newspaper has an advice column. |
Computers are very important to modern life. Many people think that in the future computers will be used a lot in everyday’s life. It is thought that we won’t have to go shopping because we will be able to get most things which are sold in shops on the Internet. There will be fewer books because we will be able to get all texts from computers. The Internet will be used to play games, see films and buy food. Most telephone calls will be made by computers, too.
Some people are glad about these new ways of shopping and communicating(交际). Others do not think that computers will replace(代替) our old ways.
Let’s take books for example. Some people think that one day we won’t read books made of paper. Instead, we will buy and read books using computers. We will read texts on small pocket computers. The computers will keep many different books in them at the same time. We won’t need to turn lots of pages and paper will be saved. Computerized books will be used more and more.
Is Internet shopping such a pleasure as going to the shop? Many people say it is not. It is a pleasure to go into shops and look at things you want to buy. It is also unlikely(不大可能) that many people will want to read large texts on our computers. Because paper books will perhaps be more friendly. Maybe computers won’t change these two habits(习惯).In passage, the word “Internet” means .
| A．国际的 | B．英特尔 | C．因特网 | D．校园网 |
Which reason for using computerized books is NOT said in the passage?
| A．We won’t need any paper. |
| B．Computers can keep many different books in them. |
| C．We won’t have lots of pages. |
| D．Computerized books won’t be very expensive. |
In Paragraph(段落) 1 it is thought people will use computers for .
| A．playing games, making telephone calls and seeing the doctor |
| B．making telephone calls, having meals and seeing films |
| C．seeing films, buying food and going for holidays |
| D．playing games, shopping and making telephone calls |
Paragraph 4 tells .
| A．about computerized books |
| B．about the old and new ways of shopping and communicating |
| C．if the Internet will change our habits |
| D．about future uses of computers |
The title(题目) for this passage is “”
| A．Computers Will Do Everything For Man |
| B．Computers Are The Future |
| C．How Computers Change Our Habits |
| D．Will Computers Replace Shops And Books |
Dear John, Thank you very much for your letter. I am glad that you enjoyed your holiday with me. We enjoyed having you and your sister here. We hope that you will both be able to come again next year. Perhaps you’ll be able to stay longer next time you come. A week is not really long enough, is it? If your school has a five-week holiday next year, perhaps(或许) you’ll be able to stay with us for two or three weeks.
We have been back at school three weeks now. It feels like three months! I expect(期待) that you are both working very hard now that you are in Grade One. I shall have to work hard next year when I am in Grade One. Tom and Ann won’t be in Grade One until 2011.
They went for a picnic yesterday but I didn’t go with them because I cut my foot and I couldn’t walk very well. They went to an island and enjoyed themselves. Do you still remember the island? That’s where all five of us spent the last day of our holiday.
Tom, Ann and I send our best wishes to Betty and you. We hope to see you soon.
Yours sincerely,
Michaelstayed with Michael for a holiday.
| A．Only John | B．Only Tom and Ann |
| C．John and his sister | D．Only Tom |
Their holiday lasted for .
| A．one week | B．two weeks | C．three weeks | D．five weeks |
From the words of “It feels like three months!” we know that .
| A．Michael’s teacher is very strict with the students |
| B．Michael is pleased with his school report |
| C．Michael has no interest in learning |
| D．Michael works very hard at his studies |
in Grade One now.
| A．John and his sister are both |
| B．John is |
| C．John’s sister is |
| D．Michael is |
Why didn’t Michael go to the island for picnic?
| A．He had to go to school. |
| B．He didn’t like the island. |
| C．Something was wrong with his foot. |
| D．The weather was bad that day. |