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Unit 5 Power of Ideas Section A (2a~3d) 分层训练
（2026-2027学年人教版九年级上册）
【基础达标】
一、根据汉语提示填写单词
1. The smartphone has become a necessary ________ (发明) in modern life.
2. As a great ________ (先锋) of hybrid rice, Yuan Longping is respected by people all over the world.
3. Please ________ (提到) your experience in scientific practice when introducing yourself.
4. This ancient Chinese poem has been ________ (翻译) into over 30 languages.
5. Remember to ________ (锁) the lab door before we leave.
二、用所给词的适当形式填空
1. The science teacher taught us how ________ (create) simple tools from waste materials.
2. His parents encourage him ________ (not give up) his dream of becoming an inventor.
3. This interesting documentary makes him ________ (learn) a lot about great scientific pioneers.
4. It takes years of hard work ________ (develop) a new kind of green energy.
5. The first practical telephone ________ (invent) by Alexander Graham Bell in 1876.
三、根据题后要求做题（每空一词）
1. People use the Internet to search for information. (对画线部分提问)
________ ________ people use the Internet
2. The new smart watch is designed by a team of young engineers. (改为一般疑问句)
________ the new smart watch ________ by a team of young engineers
3. Marie Curie discovered radium in 1898. (对画线部分提问)
________ ________ Marie Curie discover radium
4. This invention helps people solve many daily problems. (改为否定句)
This invention ________ ________ people solve many daily problems.
5. It’s wonderful to see so many great inventions in the museum. (同义句转换)
________ so many great inventions in the museum is wonderful.
【能力提升】
四、补全对话
根据下面的对话情景，在每个空白处填入一个合适的句子，使对话的意思连贯、完整。
A: Hi, Zhang Wei! You’re busy with something at the desk. 1. ________
B: I’m making a small solar-powered fan. It’s my science class project.
A: A solar-powered fan That sounds cool but maybe really hard.
B: You’re right. 2. ________ when I first started designing it. But I asked my science teacher for help.
A: 3. ________
B: My science teacher taught me how to connect the solar panels to the motor. He knows a lot about new energy technologies.
A: 4. ________
B: I spend about two hours working on it every weekend.
A: That’s really hard-working! 5. ________
B: Sure! I can show you how to put the parts together next Saturday.
A: Thank you so much!
五、语篇填空
第一节
阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整。每空限填一词，每词限用一次。
invent hobby difficult encourage practice develop learn because show create
Different people have different ways to explore their creativity. Making small inventions is a popular 1. ________ for many teenagers. Li Hao 2. ________ to create little devices when he was in primary school. At first, it was 3. ________ for him to make even a simple tool. But his father always 4. ________ him to keep trying. After years of 5. ________, he can now 6. ________ useful tools to help his grandparents with housework. He does this to 7. ________ his practical skills.
Lucy’s hobby is writing stories about future inventions. She thinks it helps her 8. ________ amazing ideas. Tom loves to 9. ________ his creative works to his classmates. He likes sharing them 10. ________ it can inspire others to think differently.
第二节
阅读短文，根据语篇要求填空，使短文通顺、意思完整，每空限填一词。
Many teenagers find joy in creative hobbies. For Li Hao, making small inventions is more than a hobby—it’s a way to help others. He spends time on it every day 1. ________ it makes him feel proud of himself.
Lucy used to think writing invention stories was too boring. 2. ________ her teacher’s encouragement, she found her interest and kept writing. Now she has written over 20 imaginative stories.
Tom’s creative works have won several school prizes. 3. ________ he was 10, he has been sharing his ideas with others. Each small invention is a step forward for him.
These creative hobbies not only help people develop their minds 4. ________ also bring them happiness and confidence. No matter what creative activity you choose, 5. ________ you keep doing it, you will make great progress.
【参考答案】
基础达标
一、
1. invention 2. pioneer 3. mention 4. translated 5. lock
二、
1. to create 2. not to give up 3. learn 4. to develop 5. was invented
三、
1. Why do 2. Is; designed 3. When did 4. doesn’t help 5. Seeing
能力提升
四、
1. What are you doing
2. It was really difficult
3. Who taught you how to make it
4. How long do you spend working on it every weekend
5. Can you show me how to make one
五、
第一节
1. hobby 2. learned 3. difficult 4. encouraged 5. practice 6. invent 7. develop
8. create 9. show 10. because
第二节
1. because 2. With 3. Since 4. but 5. if

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