Unit5知识点-Section B 3a-3d讲义2026-2027学年人教版英语九年级上册

本初中英语讲义聚焦九年级上册Unit 5 Section B 3a-3d核心知识点，围绕飞机发明主题，从发明影响、发明者初衷、飞行问题解决到发明意义，系统梳理greatly, inventor, solve等重点词汇，通过例句填空构建学习支架，帮助学生理解知识脉络。 资料特色在于融合语言能力与思维品质培养，设计中英互译、句型填空、问题回答等多元练习，如高频短语互译强化词汇应用，课文问答提升信息提炼能力。课中辅助教师分层教学，课后答案助力学生自查，有效查漏补缺，提升学习效率。

九年级英语上册Unit5知识点-Section B 3a-3d讲义 【课文要点】 1. The invention of the plane has greatly changed the world. 飞机的发明极大地改变了世界。 - greatly adv. 极大地 - e.g. The invention of the plane has ____________ changed the world. 2. However, it seems that its inventors, Orville Wright and Wilbur Wright, were not looking to change the world at all. Rather, they just wanted to fly like birds. 然而，它的发明者奥维尔·莱特和威尔伯·莱特似乎根本无意改变世界。相反，他们只是想像鸟儿一样飞翔。 - however adv. 然而 - inventor n. 发明家 - rather adv. 相反 - e.g. They just wanted to fly like ____________. 3. To solve the problem of heavier-than-air flight, the Wright brothers began working with gliders. 为了解决重于空气的飞行问题，莱特兄弟开始研究滑翔机。 - solve v. 解决 - heavier-than-air 重于空气的 - flight n. 飞行 - glider n. 滑翔机 - e.g. The Wright brothers began working with ____________. 4. There were two main challenges. The first was how to get the glider into the air. The second was how to control it once it was flying. 有两个主要的挑战。第一个是如何让滑翔机升空。第二个是一旦它飞行起来如何控制它。 - main adj. 主要的 - challenge n. 挑战 - control v. 控制 - e.g. There were two ____________ challenges. 5. For both problems, they found their solution by looking at how birds flew. 对于这两个问题，他们通过观察鸟类的飞行方式找到了解决方案。 - solution n. 解决方案 - e.g. They found their ____________ by looking at how birds flew. 6. After they solved these problems, they added an engine to the glider. 在解决了这些问题之后，他们在滑翔机上增加了一个发动机。 - add... to... 把……加到……上 - engine n. 发动机 - e.g. They ____________ an engine to the glider. 7. Then, in December 1903, the world’s first plane flights were made. 然后，在1903年12月，世界上第一次飞机飞行完成了。 - flight n. 飞行 - e.g. The world's first plane ____________ were made in December 1903. 8. The invention of the plane has made our travels around the world much easier and faster. 飞机的发明使我们在世界各地的旅行变得容易得多，也快得多。 - travel n. 旅行 - e.g. The invention of the plane has made our ____________ much easier. 9. Journeys that once took days, weeks, or even months, can now be made in only a few hours. 过去需要数天、数周甚至数月的旅程，现在只需几个小时就能完成。 - journey n. 旅程 - once adv. 曾经，一度 - e.g. Journeys that once took days can now be made in only a few ____________. 10. As a result, communication among people in different countries is now much easier. 因此，不同国家人们之间的交流现在变得容易得多。 - as a result 因此 - communication n. 交流，沟通 - among prep. 在……之间（三者或以上） - e.g. ____________ a result, communication is now much easier. 【高频短语汇总】中英互译 1. at all __________ 2. __________ 根本，完全 3. rather __________ 4. __________ 相反 5. solve the problem __________ 6. __________ 解决问题 7. add... to... __________ 8. __________ 把……加到……上 9. as a result __________ 10. __________ 因此 11. communication among __________ 12. __________ ……之间的交流 13. heavier-than-air flight __________ 14. __________ 重于空气的飞行 15. test flight __________ 16. __________ 试飞 17. look at __________ 18. __________ 观察，看 【综合练习】 一、根据汉语意思完成句子 1. 飞机的发明极大地改变了世界。 The invention of the plane has ________ changed the world. 2. 他们根本无意改变世界。 They were not looking to change the world ________. 3. 他们只是想像鸟儿一样飞翔。 They just wanted to ________ like birds. 4. 莱特兄弟开始研究滑翔机。 The Wright brothers began working with ________. 5. 有两个主要的挑战。 There were two ________ challenges. 6. 他们通过观察鸟类找到了解决方案。 They found their ________ by looking at how birds flew. 7. 他们在滑翔机上增加了一个发动机。 They ________ an engine to the glider. 8. 世界上第一次飞机飞行是在1903年12月完成的。 The world's first plane ________ were made in December 1903. 9. 因此，不同国家人们之间的交流现在容易得多。 ________ a result, ________ among people in different countries is now much easier. 10. 过去需要数天的旅程现在只需几个小时。 Journeys that once took days can now be made in only a few ________. 二、单项选择 ( ) 1. The invention of the plane has ________ changed the world. A. great B. greater C. greatly D. greatest ( ) 2. They were not looking to change the world ________. A. at all B. after all C. in all D. all in all ( ) 3. They just wanted to fly ________ birds. A. as B. like C. for D. with ( ) 4. The Wright brothers began working with ________. A. glider B. gliders C. glidering D. glidered ( ) 5. There were two ________ challenges. A. main B. mainly C. major D. both A and C ( ) 6. They found their solution ________ looking at how birds flew. A. to B. for C. by D. with ( ) 7. They ________ an engine to the glider. A. added B. add C. adding D. adds ( ) 8. ________ a result, communication is now much easier. A. For B. As C. With D. To ( ) 9. Communication ________ people in different countries is easier. A. between B. among C. in D. on ( ) 10. Journeys that once took days can now be made in only a few ________. A. hours B. days C. weeks D. months 三、用所给词的正确形式填空 1. The invention of the plane has ________ (great) changed the world. 2. They just wanted to fly like ________ (bird). 3. The Wright brothers began working with ________ (glider). 4. There were two main ________ (challenge). 5. They found their ________ (solve) by looking at how birds flew. 6. They ________ (add) an engine to the glider. 7. The world's first plane ________ (flight) were made in 1903. 8. ________ (communicate) among people is now much easier. 四、根据课文内容回答问题 1. Who invented the plane? ____________ 2. What did the Wright brothers want to do? ____________ 3. What were the two main challenges? ____________ 4. How did they solve the problems? ____________ 5. When were the world’s first plane flights made? ____________ 6. What effect has the invention of the plane had on the world? ____________ 五、用方框中所给词或短语的正确形式填空 | greatly | at all | like | glider | main | solution | add | as a result | communication | 1. The invention of the plane has ________ changed the world. 2. They were not looking to change the world ________. 3. They just wanted to fly ________ birds. 4. The Wright brothers began working with ________. 5. There were two ________ challenges. 6. They found their ________ by looking at birds. 7. They ________ an engine to the glider. 8. ________, ________ among people is now much easier. 【答案】 一、 1. greatly 2. at all 3. fly 4. gliders 5. main 6. solution 7. added 8. flights 9. As, communication 10. hours 二、 1. C 2. A 3. B 4. B 5. D 6. C 7. A 8. B 9. B 10. A 三、 1. greatly 2. birds 3. gliders 4. challenges 5. solution 6. added 7. flights 8. Communication 四、 1. Orville Wright and Wilbur Wright. 2. They wanted to fly like birds. 3. How to get the glider into the air; how to control it once flying. 4. They looked at how birds flew. 5. In December 1903. 6. It has made travels easier and faster and improved communication among people. 五、 1. greatly 2. at all 3. like 4. gliders 5. main 6. solution 7. added 8. As a result, communication 1 学科网（北京）股份有限公司 $