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Unit 5 Great inventions 单元练习卷
（时间：60分钟 满分：85分）
一、语法选择（本大题共10小题，每小题1分，共10分）
请通读下面短文，掌握其大意，根据语法和上下文连贯的要求，从每小题所给的三个选项中选出一个最佳答案。
Lily has always been interested in great ____1____ like the smartphone and the Internet. She thinks they have greatly changed people’s lives. Last week, she attended a school lecture about inventions. The speaker said that we ____2____ always keep an open mind to new ideas, because they might lead to amazing inventions.
After the lecture, Lily decided to ____3____ more about famous inventors. She went to the school library ____4____ her best friend, Anna. They found a book about Alexander Graham Bell, who ____5____ the telephone in 1876. Lily learned that Bell faced many difficulties ____6____ he finally succeeded.
Now, Lily tries to spend one hour every week reading about inventions. She believes ____7____ small ideas can turn into something really important. “____8____ useful inventions are to us!” she often says to her classmates. She even plans to make a small invention ____9____ helps her mom do housework. She knows that ____10____ she works hard, she can make it come true.
( )1. A. invent B. inventions C. inventor
( )2. A. should B. can C. may
( )3. A. learn B. learns C. learning
( )4. A. with B. by C. for
( )5. A. invent B. invented C. invents
( )6. A. after B. before C. while
( )7. A. that B. what C. how
( )8. A. What B. How C. Which
( )9. A. who B. which C. whose
( )10. A. if B. though C. because
二、完形填空（本大题共10小题，每小题1分，共10分）
请通读下面短文，掌握其大意，从每小题所给的四个选项中选出一个最佳答案。
Tom is a creative boy who loves making small inventions. Last month, he noticed that his grandma had trouble ____11____ water from the tap to her flower pot. So he decided to make an invention to ____12____ her.
Tom spent three weeks thinking and designing. He used some old plastic bottles and a small pump (水泵). At first, his invention didn’t work ____13____. The water kept leaking (漏水). Tom felt upset, ____14____ he didn’t give up. He asked his science teacher for ____15____. The teacher told him to check the connections between the parts carefully.
After two more days of hard work, Tom’s invention finally worked! It could carry water ____16____ to the flower pot automatically. When he showed it to his grandma, she was very ____17____ and gave him a big hug.
Now, Tom’s invention is used in his neighborhood. Many old people say it’s very ____18____. Tom feels proud of ____19____. He has decided to keep on making inventions to ____20____ people’s lives easier.
( )11. A. carry B. carrying C. carried D. to carry
( )12. A. help B. teach C. save D. protect
( )13. A. good B. well C. nice D. bad
( )14. A. and B. so C. but D. or
( )15. A. money B. time C. advice D. gift
( )16. A. slowly B. quickly C. loudly D. easily
( )17. A. sad B. angry C. worried D. happy
( )18. A. useful B. useless C. boring D. difficult
( )19. A. himself B. herself C. itself D. themselves
( )20. A. take B. make C. let D. get
三、阅读理解（本大题共15小题，每小题2分，共30分）
请阅读A、B、C三篇短文，从每小题所给的四个选项中选出能回答所提问题或完成所给句子的最佳答案。
A
School Invention Fair When: This Friday (9:00 am—12:00 pm) Where: School Gym Activities: 1. Show your own small inventions 2. Vote for the most creative invention 3. Get a free book about young inventors Who can join: All Grade 8 students Sign up: Give your invention plan to your science teacher by Thursday Inventor Talk: Story of Wang Xuan When: This Wednesday (2:30 pm—4:00 pm) Where: School Hall What: Learn about Wang Xuan, the inventor of Chinese laser phototypesetting (激光照排技术) Activities: 1. Listen to the inventor’s life story 2. Watch a video about his invention 3. Ask questions to the guest speaker (a student of Wang Xuan) Who can join: All students interested in inventions Sign up: Scan the QR code on the school notice board
( )21. When is the School Invention Fair
A. This Wednesday. B. This Thursday. C. This Friday. D. This Saturday.
( )22. What can you get from the School Invention Fair
A. A free book about young inventors. B. A laser phototypesetting machine.
C. A small invention. D. A video about Wang Xuan.
( )23. Who can join the School Invention Fair
A. Grade 7 students. B. Grade 8 students.
C. Grade 9 students. D. All teachers.
( )24. Where is the Inventor Talk held
A. School Gym. B. School Hall. C. Science Classroom. D. School Library.
( )25. What activity do you do in the Inventor Talk
A. Show your own invention. B. Vote for creative inventions.
C. Ask questions to the guest speaker. D. Give your invention plan to the teacher.
B
Great inventions have changed the way we live, work and communicate. One of the most important inventions is the Internet. It came into use in the 1990s and has become an essential part of modern life.
With the Internet, we can shop online, talk to friends far away, and get information in seconds. It has also made remote work and online learning possible, especially during the pandemic. Another great invention is the smartphone. It combines a phone, camera, computer and many other tools into one small device. Smartphones allow us to take photos, play games, and even pay for things without using cash.
However, great inventions also bring some problems. For example, spending too much time on the Internet can make us feel lonely and harm our eyes. Smartphones can distract (分散注意力) us from studying and face-to-face communication. We should use these inventions wisely to enjoy their benefits without suffering from their disadvantages.
( )26. When did the Internet come into use
A. In the 1980s. B. In the 1990s. C. In the 2000s. D. In the 2010s.
( )27. What can we do with the Internet according to the passage
A. Make a smartphone. B. Print books. C. Shop online. D. Fix cameras.
( )28. What does the smartphone combine into one device
A. A phone, camera and computer. B. A TV, radio and computer.
C. A printer, camera and phone. D. A clock, phone and camera.
( )29. What problem do great inventions bring
A. They make information hard to get. B. They can distract us from studying.
C. They make face-to-face communication easier. D. They help us work remotely.
( )30. What’s the main idea of the passage
A. How to invent new things. B. The history of the Internet.
C. Great inventions change life but also bring problems. D. Smartphones are the most important inventions.
C
配对阅读。上栏是五位同学的需求，下栏是七则与发明相关的活动信息。请为每位同学匹配合适的活动。
( )31. Alice wants to learn how to make a small invention to help her little sister with her homework.
( )32. Bob is interested in Chinese ancient inventions and wants to know more about them.
( )33. Cindy wants to join a competition to show her own invention.
( )34. David wants to listen to stories of famous inventors from other countries.
( )35. Emma wants to learn how to use modern inventions to improve her study.
A. Ancient Chinese Invention Exhibition: See models of paper, printing and the compass. Learn their history and importance. Time: 10:00 am—5:00 pm, Saturday.
B. Young Inventor Competition: Show your small invention and compete for prizes like a science kit. Time: 2:00 pm, Sunday.
C. Small Invention Workshop for Kids: Teach you to make simple inventions like a pencil holder with a light to help with homework. Time: 3:00 pm, Friday.
D. Foreign Inventor Stories: Listen to stories of Edison, Tesla and other great foreign inventors. Time: 1:30 pm, Wednesday.
E. Study with Modern Tech: Learn how to use apps and online tools to make your study more efficient. Time: 4:00 pm, Thursday.
F. Invention Safety Talk: Learn how to keep safe when making and using small inventions. Time: 9:00 am, Tuesday.
G. Parent-Child Invention Day: Make a small invention with your parents and share it with others. Time: 2:00 pm, Saturday.
四、短文填空（本大题共10小题，每小题1.5分，共15分）
请从方框内选择适当的词并用其正确形式填空，使文章完整连贯。注意每空一词，每词仅用一次，有两词为多余项。
invention, change, important, invent, people, life, should, learn, use, modern, with, create
Great ____36____ have greatly ____37____ the world we live in. Without them, our ____38____ would be very different. For example, the wheel, one of the earliest inventions, made it easier for ____39____ to carry heavy things.
Today, ____40____ technology like smartphones and the Internet are everywhere. They are ____41____ for both work and study. We ____42____ how to use them properly to avoid their bad effects.
Many young people are interested in making inventions. They want to ____43____ new things to help others. Remember, every great invention starts with a small idea. If you have an idea, don’t be afraid to try to ____44____ it. It may one day become a useful ____45____ that helps many people.
五、读写综合（本大题分为A、B两部分，共20分）
A. 回答问题（本题共5小题，每小题2分，共10分）
请阅读下面短文，根据所提供的信息，回答5个问题。要求所写答案语法正确、语义完整切题。
Teenagers can also make great inventions if they keep curious and creative. Here are some tips for young inventors.
First, observe (观察) the world around you. Many great inventions come from solving small problems in daily life. For example, the umbrella was invented because people didn’t want to get wet in the rain. Second, read books and learn from other inventors. You can get ideas from their stories and experiences. Third, don’t be afraid of failures. Every inventor makes mistakes before succeeding. Finally, ask for help when you need it. Your teachers, parents or friends can give you good advice.
If you follow these tips, you may make your own great invention one day.
46. Who can make great inventions according to the passage
___________________________________________________________________
47. Where do many great inventions come from
___________________________________________________________________
48. What can you get from other inventors’ stories
___________________________________________________________________
49. What should you do if you want to be an inventor
___________________________________________________________________
50. What should you do when you need help during the invention process
___________________________________________________________________
B. 书面表达（本题10分）
请根据要求完成短文写作。
你最喜欢的伟大发明是智能手机，请写一篇短文介绍它。内容包括：
(1) 是什么发明；
(2) 你为什么喜欢它；
(3) 它如何影响你的生活。
作文要求：
(1) 语句连贯，词数50左右；
(2) 不能照抄原文，不得出现真实信息。
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
参考答案
一、语法选择
1~5 BAABB 6~10 BABBA
二、完形填空
11~15 BABCC 16~20 DDAAB
三、阅读理解
21~25 CABBC 26~30 BCABC 31~35 CABDE
四、短文填空
36. inventions 37. changed 38. lives 39. people 40. modern
41. important 42. should 43. create 44. invent 45. invention
五、读写综合
A. 回答问题
46. Teenagers can make great inventions if they keep curious and creative.
47. They come from solving small problems in daily life.
48. We can get ideas from their stories and experiences.
49. We should observe the world around us, learn from other inventors, not be afraid of failures and ask for help when needed.
50. We should ask our teachers, parents or friends for good advice.
B. 书面表达（参考范文）
My favorite great invention is the smartphone. It's a small, all-in-one device that combines a phone, camera and mini computer. I love it because it lets me stay connected with friends anytime and access study resources quickly. It makes my life much more convenient— I can even take online courses and shop for school supplies with it.

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