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2026-2027学年冀教版九年级上 Unit 6 Looking into Science课时1 Let's do an experiment! 课时练习
一、单词默写(根据汉语提示写出对应的英文单词,每题1分,共15分)
1. 实验(n.)__________
2. 广口瓶;罐子(n.)__________
3. 卡纸板;纸板(n.)__________
4. 力量;力(n.)__________
5. 空气压力 __________
6. 雨衣(n.)__________
7. 紧紧地(adv.)__________
8. 结论(n.)__________
9. 观察(n.)__________
10. 物质(n.)__________
11. 宇宙(n.)__________
12. 负载;负荷(n.)__________
13. 推动(v.)__________
14. 方法(n.)__________
15. 科学(n.)__________
二、词组默写(根据汉语提示写出对应的英文短语,每题1分,共8分)
1. 用……装满 __________
2. 用……盖住 __________
3. 把……倒过来 __________
4. 把手移开 __________
5. 流出;倒出 __________
6. 待在……里面 __________
7. 穿上 __________
8. 把……推到……上 __________
三、完成句子(根据汉语提示完成英文句子,每空词数不限,每题2分,共20分)
1. 我把一个罐子装满水。
I ______ a jar ______ water.
2. 我用一块纸板盖住顶部并按住它。
I ______ the top ______ a piece of cardboard and ______ it there.
3. 然后我把罐子倒过来,把手从纸板上移开。
Then I ______ the jar ______ ______ and ______ my hand ______ the cardboard.
4. 我认为水会流出来。
I think the water will ______ ______.
5. 我认为水会留在罐子里。
I think the water will ______ ______ the jar.
6. 那叫做科学方法。
That's ______ the ______ method.
7. 他穿上雨衣并坐下。
He ______ ______ a raincoat and ______ down.
8. 空气的力量把水留在了罐子里。
The ______ of the ______ keeps the water in the jar.
9. 大气压力把纸板推到罐子上。
The ______ ______ pushes the cardboard ______ the jar.
10. 你得出的结论是什么?
What can you ______?
四、用括号内所给词的适当形式填空(每题1分,共10分)
1. We should do the experiment ______ (careful) to avoid mistakes.
2. The force of the air is ______ (strong) than I thought.
3. Danny closed his eyes ______ (tight) when Brian took his hand off.
4. The ______ (science) method is important in our daily life.
5. What have we ______ (discover) from this experiment?
6. The air pressure pushes the cardboard onto the jar ______ (make) it stay.
7. I conclude that air is ______ (power) than I expected.
8. Please make an ______ (observe) and write down what you see.
9. The water ______ (stay) in the jar because of the air pressure.
10. Scientists use different ______ (method) to do research.
五、选词填空(阅读短文,从方框中选择恰当的词并用其适当形式填空,每空1分,共10分)
方框: experiment · fill · cover · upside · cardboard · pressure · force · conclude · pour · outside
Last week, our science teacher asked us to do an 1. ______ in class. We used a glass jar, some water, and a piece of 2. ______. First, we 3. ______ the jar with water. Then we 4. ______ the top with the cardboard and held it there. Next, we turned the jar 5. ______ down and took our hands off. I thought the water would 6. ______ out, but it didn't. The water stayed in the jar!
The teacher explained that the air 7. ______ from 8. ______ pushed the cardboard onto the jar. The 9. ______ of air was strong enough to hold the water. We 10. ______ that air is really powerful. It was a very interesting experiment!
六、阅读还原(阅读短文,从方框中选出能填入空白处的最佳选项,其中有一项多余,每题2分,共10分)
A. Then we filled a glass jar completely with water.
B. We were all surprised by the result.
C. This experiment helps us understand air pressure better.
D. However, science is not always easy to understand.
E. Finally, we removed our hands from the cardboard.
F. Our teacher told us that the force of the air kept the water in the jar.
Last Friday, our class did a fun experiment in the lab. 1. ______ We covered the top with a piece of cardboard and held it tightly. Then we turned the jar upside down. 2. ______ Some students closed their eyes because they thought the water would pour out. But to our surprise, the water stayed in the jar!
3. ______ It was the air pressure that pushed the cardboard onto the jar. The pressure outside the jar was stronger than the pressure inside it. 4. ______ The water was held up by the cardboard, which was held up by the air.
5. ______ We learned that air, which we cannot see, has great power. I will never forget this experiment.
七、阅读理解(阅读短文,从每题所给的A、B、C、D四个选项中选出最佳选项,每题2分,共30分)
A
Air Pressure Experiments
Air pressure is something we experience every day, but we often don't notice it. It is the force that air pushes on everything around us. Scientists use experiments to show how air pressure works.
One simple experiment is the "water and cardboard" experiment. You need a glass jar, water, and a piece of cardboard. Fill the jar with water, cover the top with cardboard, turn the jar upside down, and take your hand off. The water stays in the jar because the air pressure outside pushes the cardboard upward. This is a classic demonstration of air pressure.
Another experiment is the "balloon in a bottle" experiment. Put a small balloon inside a bottle and stretch the opening of the balloon over the bottle's mouth. Try to blow up the balloon — you can't! The air inside the bottle pushes against the balloon. But if you make a small hole in the bottle, the air can escape, and you can blow up the balloon easily. This shows that air takes up space and creates pressure.
( )1. What is air pressure?
A. The force that water pushes on everything. B. The force that air pushes on everything.
C. The force that cardboard pushes on water. D. The force that glass pushes on air.
( )2. Why does the water stay in the jar in the "water and cardboard" experiment?
A. The water sticks to the jar. B. The air pressure outside pushes the cardboard upward.
C. The cardboard is very heavy. D. The jar is made of special glass.
( )3. What do you need for the "water and cardboard" experiment?
A. A balloon and a bottle. B. A glass jar, water, and a piece of cardboard.
C. A raincoat and a chair. D. A metal can and some ice.
( )4. In the "balloon in a bottle" experiment, why can't you blow up the balloon?
A. The balloon is too small. B. The air inside the bottle pushes against the balloon.
C. The bottle is too heavy. D. The balloon has no air inside.
( )5. What is the main idea of this passage?
A. Air pressure is difficult to understand. B. We can use experiments to show how air pressure works.
C. Water and balloons are dangerous. D. Scientists study the weather.
B
A Science Fair Memory
When I was in Grade 7, I took part in my school's science fair. I was nervous because I had never done a project before. My teacher encouraged me to try the "water and cardboard" experiment. I thought it would be easy, but I was wrong.
On the day of the fair, I filled the jar with water and placed the cardboard on top. I turned the jar upside down, but the water poured out all over the table! I felt embarrassed. My teacher came over and helped me. She said, "You need to fill the jar completely to the top. There should be no air inside." I tried again, and this time it worked!
The fair was a great success. Many students and teachers came to see my experiment. I explained how air pressure worked and why the water stayed in the jar. Everyone was amazed. I learned that science is not about being perfect the first time. It is about trying, failing, learning, and trying again.
That experience taught me a valuable lesson. It also made me love science even more. I have participated in the science fair every year since then.
( )6. Why did the writer's experiment fail the first time?
A. The cardboard was too small. B. The jar was not completely filled with water.
C. The water was too hot. D. The teacher didn't help him.
( )7. What did the teacher say when the writer failed?
A. "Give up now." B. "You need to fill the jar completely to the top."
C. "Use a different jar." D. "You should use a raincoat."
( )8. How did people react to the writer's experiment at the fair?
A. They ignored it. B. They were bored.
C. They were amazed. D. They thought it was too simple.
( )9. What lesson did the writer learn from this experience?
A. Science is too difficult. B. It's important to be perfect the first time.
C. Success comes from trying, failing, learning, and trying again. D. Only teachers can do experiments.
( )10. What is the writer's attitude towards science after this experience?
A. He lost interest in it. B. He liked it even more.
C. He thought it was boring. D. He decided to become a teacher.
C
What is Science?
Science is everywhere around us. It is not just something in textbooks or laboratories. Science is the process of asking questions and finding answers. It helps us understand the world we live in.
When you look at the sky and wonder why it is blue, you are thinking like a scientist. When you ask why onions make you cry, you are doing science. The scientific method is a way to find answers to these questions. It involves observing, asking questions, making predictions, doing experiments, and drawing conclusions.
Scientific discoveries have changed our lives in many ways. From the invention of electricity to the development of modern medicine, science has made the world a better place. Scientists like Einstein, Newton, and Curie have inspired people for generations.
But science is not just for scientists. Anyone can be a scientist. All you need is curiosity and a willingness to learn. So next time you see something interesting, ask yourself: "Why?"
( )11. What is science according to the passage?
A. Only something in textbooks. B. Only something in laboratories.
C. The process of asking questions and finding answers. D. A subject that only scientists can study.
( )12. What does the scientific method involve?
A. Observing, asking, predicting, experimenting, and concluding.
B. Only asking questions. C. Only doing experiments. D. Reading textbooks.
( )13. Which scientist is NOT mentioned in the passage?
A. Einstein. B. Newton. C. Curie. D. Edison.
( )14. What quality do you need to be a scientist according to the passage?
A. A lot of money. B. Curiosity and a willingness to learn.
C. A laboratory. D. A university degree.
( )15. What is the writer's purpose of writing this passage?
A. To explain why science is difficult. B. To encourage people to be curious and think like scientists.
C. To describe famous scientists. D. To teach how to do experiments.
八、完形填空(阅读短文,从每题所给的A、B、C、D四个选项中选出最佳选项,每题1分,共10分)
My name is Tom. I have always been 1. ______ in science. When I was little, I used to ask my parents 2. ______ questions. They often didn't know the answers, but they always encouraged me to 3. ______ them out.
Last month, I read a book about air pressure. It said that air has 4. ______ and can push things. I wanted to test it 5. ______ myself. I filled a glass with water and covered it with a piece of paper. I turned it 6. ______ down. To my surprise, the water didn't pour out! I was so excited that I called my friends to 7. ______ my experiment.
My friends didn't believe me at first. They thought the water would wet the floor. So I 8. ______ the experiment again and showed them. They were amazed and wanted to try it 9. ______ too. We spent the whole afternoon doing the experiment and discussing 10. ______ it worked. It was a wonderful day for us.
( )1. A. interested B. boring C. excited D. tired
( )2. A. no B. many C. few D. a little
( )3. A. give B. take C. find D. put
( )4. A. weight B. colour C. smell D. shape
( )5. A. on B. at C. by D. for
( )6. A. up B. down C. upside D. right
( )7. A. watch B. hear C. feel D. taste
( )8. A. designed B. performed C. wrote D. said
( )9. A. himself B. herself C. itself D. themselves
( )10. A. what B. when C. where D. why
九、阅读回答(阅读短文,回答后面的问题,每题2分,共10分)
How to Do a Science Experiment
Doing a science experiment can be a fun and exciting experience. Here are some steps to help you get started.
First, choose a question. What do you want to know? For example, "Will an egg float in salt water?" or "What happens if I put a flower in colored water?" Second, make a prediction. What do you think will happen? This is called a hypothesis. Third, gather your materials. Make sure you have everything you need before you start. Fourth, follow the steps carefully. Watch closely and write down what you see. This is called making observations. Fifth, analyse your results. Did your experiment prove your hypothesis? If not, why? Finally, draw a conclusion. Write a summary of what you learned.
Remember, not every experiment works the first time. That's okay. Scientists often fail many times before they succeed. The important thing is to keep asking questions and keep exploring.
1. What is the first step in doing a science experiment?
2. What is a hypothesis?
3. What should you do during the experiment?
4. What should you do if your experiment doesn't work the first time?
5. According to the passage, what is the most important thing in science?
参考答案
一、单词默写
1. experiment 2. jar 3. cardboard 4. force
5. air pressure 6. raincoat 7. tightly 8. conclusion
9. observation 10. matter 11. universe 12. load
13. push 14. method 15. science
二、词组默写
1. fill... with 2. cover... with 3. turn upside down
4. take one's hand off 5. pour out 6. stay in
7. put on 8. push onto
三、完成句子
1. fill; with 2. cover; with; hold
3. turn; upside down; take; off 4. pour out
5. stay in 6. called; scientific
7. put on; sat 8. force; air
9. air pressure; onto 10. conclude
四、词形填空
1. carefully 2. stronger 3. tightly 4. scientific
5. discovered 6. to make 7. more powerful
8. observation 9. stays 10. methods
五、选词填空
1. experiment 2. cardboard 3. filled 4. covered
5. upside 6. pour 7. pressure 8. outside
9. force 10. concluded
六、阅读还原
1. A 2. E 3. F 4. C 5. B
七、阅读理解
1. B 2. B 3. B 4. B 5. B
6. B 7. B 8. C 9. C 10. B
11. C 12. A 13. D 14. B 15. B
八、完形填空
1. A 2. B 3. C 4. A 5. C
6. C 7. A 8. B 9. D 10. D
九、阅读回答
1. Choose a question.
2. A hypothesis is a prediction about what you think will happen.
3. Follow the steps carefully, watch closely, and write down what you see (make observations).
4. Don't give up. Keep trying. It's okay to fail many times before succeeding.
5. Keep asking questions and keep exploring.
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