2025年暑期鲁教版九年级全册Unit 1When was it invented? 重点知识预习训练(全一册)（含答案）

2025暑期鲁教版九年级英语Unit 1 When was it invented 重点知识预习训练
一、用括号内所给单词的适当形式填空
1. The great ______ (invent) of the telephone changed communication worldwide.
2. These ______ (scoop) are used for serving ice-cream in the shop.
3. What ______ (style) of shoes were popular in the 20th century
4. It's a ______ (please) to learn about the history of inventions.
5. The ______ (electric) light bulb was invented by Edison.
6. The ______ (nation) museum displays ancient Chinese inventions.
7. The ______ (Canada) inventor created a new type of robot.
8. The machine is ______ (operate) by pressing the green button.
9. ______ (Heat) the food before serving it to the guests.
10. The ______ (sour) taste of the lemon comes from its juice.
11. The chef added salt to make the dish ______ (salt).
12. Children love the ______ (crisp) texture of potato chips.
13. The ______ (slip) floor caused several accidents in the kitchen.
14. The discovery happened ______ (accident) during a science experiment.
15. The ______ (customer) praised the new product for its convenience.
16. The teacher ______ (divide) the class into four groups for the project.
17. The ______ (popular) of smartphones has grown rapidly in recent years.
18. The river ______ (rise) after the heavy rainfall last week.
19. Only a few ______ (remain) parts of the old machine are still useful.
20. The ______ (smell) of flowers filled the garden in spring.
二、根据首字母及句意补全单词
1. The r______ was launched into space to study the universe.
2. M______ like iron and copper are good conductors of electricity.
3. The s______ was invented to help carry water from the well.
4. Remember to l______ the door when you leave the laboratory.
5. A l______ computer is easy to carry and use anywhere.
6. The a______ can fly across the ocean in just a few hours.
7. The i______ of the printing press changed the world of publishing.
8. Use your i______ to design a new invention for daily life.
9. The robot is a m______ creation that helps with household chores.
10. The c______ service in the store ensures customers' satisfaction.
三、语法专练（考查被动语态、一般过去时等）
1. The first telephone ______ (invent) by Alexander Graham Bell in 1876.
2. If more money ______ (invest) in research, new inventions ______ (create).
3. The new product ______ (display) at the international exhibition last month.
4. These ancient tools ______ (should preserve) in the museum carefully.
5. The machine ______ (use) for cutting metal in the factory every day.
6. A new satellite ______ (send) into space by China next year.
7. The problem ______ (solve) by the young scientist during the experiment.
8. Food ______ (heat) in the microwave before being served.
9. The house ______ (build) by workers using new construction technology.
10. The invention ______ (change) people's lives since it was introduced.
四、根据汉语意思完成句子
1. 这个发明是什么时候创造的？
When ______ the invention ______
2. 电脑被用来帮助人们解决复杂问题。
The computer ______ ______ ______ helping people solve complex problems.
3. 卫星是由金属和特殊材料制成的。
The satellite ______ ______ ______ metal and special materials.
4. 她偶然间发现了这个新的实验方法。
She discovered the new experimental method ______ ______.
5. 这个机器人可以用来打扫房间。
The robot ______ ______ ______ ______ clean the room.
6. 中国是第三个将宇航员送入太空的国家。
China is the third nation ______ ______ an astronaut into space.
7. 毫无疑问，科技发展改变了我们的生活。
______ ______, the development of technology has changed our lives.
8. 我们应该把理论和实践联系起来。
We should ______ theory ______ practice.
9. 这种新能源的受欢迎程度正在上升。
The ______ of this new energy source ______ ______.
10. 爱迪生发明了电灯泡，这对世界影响深远。
Edison ______ the light bulb, which had a profound influence on the world.
五、句型转换
1. They invented the first car in 1886.（改为被动语态）
The first car ______ ______ by them in 1886.
2. The factory polluted the river last month.（改为否定句）
The factory ______ ______ the river last month.
3. To invent new things, we need to do more experiments.（对划线部分提问）
______ ______ we ______ to invent new things
4. If we don't protect the environment, the earth will suffer.（改为同义句）
______ we ______ the environment, the earth will suffer.
5. He studies invention history every day.（用现在进行时改写）
He ______ ______ invention history now.
6. The government has made new invention policies.（改为一般疑问句）
______ the government ______ new invention policies
7. We can improve life through new inventions.（对划线部分提问）
______ ______ we improve life
8. These old books can be recycled into new paper.（改为否定句）
These old books ______ ______ recycled into new paper.
9. The company produces 1000 new products every year.（对划线部分提问）
______ ______ new products does the company produce every year
10. Inventing new things is challenging.（改为同义句）
______ challenging ______ ______ new things.
答案
一、1. invention 2. scoops 3. styles 4. pleasure 5. electric 6. national 7. Canadian
8. operated 9. Heat 10. sour 11. salty 12. crispy 13. slippery 14. accidentally
15. customers 16. divided 17. popularity 18. rose 19. remaining 20. smell
二、1. rocket 2. Metal 3. scoop 4. lock 5. laptop 6. airplane 7. invention 8. imagination 9. man-made 10. customer
三、1. was invented 2. is invested; will be created 3. was displayed
4. should be preserved 5. is used for 6. will be sent 7. was solved 8. is heated
9. was built 10. has changed
四、1. was; invented 2. is used for 3. is made of 4. by accident 5. can be used to
6. that sent 7. No doubt 8. connect; with 9. popularity; is rising
10. invented; light bulb
五、1. was invented 2. didn't pollute 3. What should; do 4. Unless; protect
5. is studying 6. Has; made 7. How can 8. can't be 9. How many 10. It's; to invent