Unit6课时训练2024-2025学年人教版英语九年级全册

人教版九年级英语Unit6课时训练 Section A 1a-1c第一课时 一、把下列句子改为被动语态 1. I didn’t lend anybody my books. _____________________________ 2. Did you send your brother gifts? _____________________________ 3. She bought her brother a dictionary. _______________________________ 4. The boy ate the biscuits in two minutes. __________________________ 5. When did people invent paper? ___________________________________ 二、用括号内单词的适当形式填空。 6. The telephone _____ ______ (invent) by Bell many years ago. 7. English _____ _______ (speak) in China. 8. The car ______ _____(make) in China. 9. The room must ________ ____(clean) every day. 10. --- Is the seat _____________ by anyone? (take) --- No, you can sit here. 11. The kind of ballpoint pen ___________ well, so it __________ well, too. (write; sell) 12. The thief ___________ by the police and ___________ to prison last month. ( catch; send) 13. --- When _________ the swimming club ___________? (set up) --- In 2006. 14. ---- What are they doing with the wall now? --- It ___ _______ by some workers at the moment. (paint) 15. I ______ _____ that the meeting had to ____ ____ until next week. (tell; put off) 三、根据内容完成对话。 Alice: Was your life very _________(16) when you were a kid? Grandma: Oh, not really. Why? Alice: Well, you didn’t have ________(17.) inventions like a telephone, right? Grandma: Of course we did! How old do you think I am? The telephone _________ ________(18.)in 1876. You need to take a history class, Alice! Alice: Haha! How about cars? They ______ _______(19.) yet, were they? Grandma: Yes, they were. Cars were invented in1885. My family had a car. Alice: Well, did you have a TV? Grandma: No, we couldn’t ________(20.) one. They were expensive in those days. The TV _____ _______(21.)around 1927, I think. Alice: Well, I know that you didn’t have a computer because we learned in school that _________(22.) computers were invented in 1971. Grandma: You’re right. But I have _________(23.) now! 四、 翻译句子。 (24.)计算机是何时发明的？(when)_________________________________________ (25.)谁发明了计算机？(who )_____________________________________________ (26.)计算机是用来做什么？(for )____________________________________________ (27.) 我认为电视是在汽车之前被发明。(before) I think the TV _______________________________________________________. (28) 那个时候电脑太贵了我们买不起。(so… that) Section A 2a-2d 第二课时 一、根据汉语提示完成单词。 1. I like the color of this coat but I don’t like its _________ (款式). 2. It’s my great _________ (高兴) to have a talk with you. 3. The little inventions have helped me a lot in my ________(日常的)life. 4. Julia introduced a good _________(网站)to me to learn English. 5. My mother always __________(列清单）all things that she wants to buy before shopping. 二、根据听力材料填空。 Here are some of the interesting inventions that I’m writing about for my English homework. First , the shoes ________(6) lights are used for ________(7) in the dark. They are useful when you get up at night. Because you may _________(8) the toe on something on the way to the _________(9). Next is a special ice-cream scoop. It ________(10) on electricity and becomes _________(11). So it’s used for _________(12) really cold ice cream. The shoes with special heels are used for _________(13) the style of your shoes. You can move the heels up and __________(14). If you are going to a party, you can ________(15) the heels. However, you can ________(16) them if you are just going out for shopping. 三、根据句意，用pleasant, pleased或pleasure填空。 17. I had a ________ time. 18. He will be ________ to help you. 19. Reading gives me great _________. 20. It gives me ________to see you looking happy. 21. We spent a _________ day in the country. 22.I think it is impossible to make everyone_________. 四、翻译句子。 23. 拉链是由Whitcomb Judson 在1893 年发明的，在那时它并没有得到广泛应用。 ______________________________ by Whitcomb Judson in 1893. But _________________ ______________________________________________. 24. 学校作业的主题是 “改变世界的小发明”。 The subject for my school project ______________________________________________. 25. 我喜欢那双鞋跟很特别的鞋子。 I like shoes ____________________________________________________. 26. 不同发明的先锋者被列在那儿。 The pioneers of __________________________________________________________. 27. 想一想在我们日常生活中多么频繁地使用它。 _______________________________________________________________________ 第三课时 （Section A 3a-3c） 一、翻译下列词组。 1. 偶然地 2. 据说 3. 落入水中 4. 在火堆上 5. 泡茶 6. 最上等的茶叶 7. 茶圣 8. 发生 9. 无疑 二、根据句意及首字母提示填词。 1. He n didn’t hear what the teacher said in class. 2. I’m b the milk. Would you like to taste it in a minute? 3. John became a manager(经理), but Mike r a worker yet. 4. In ancient time, the emperor is the r of all country. 5. There is no d that she will succeed because she works hard all the time. 三、用方框中所给词的适当形式填空。 ( invent , drink , bring , produce , trade ) 1.One of the world’s favorite drinks was _____ by accident. 2. Tea was first _____ by Shen Nong 5,000 years ago. 3. A nice smell was _____ when the tea leaves dropped into the hot water. 4. Tea was _____ to Korea and Japan during the 6th and 7th centuries. 5. Tea is now _____ between many different countries. 四、汉译英。 1. 茶是偶然发明的。 2. 水中的叶子产生了一种令人愉悦的味道。 3. 据说一个叫神农的中国统治者第一个发现茶可以当饮料。 a Chinese ruler Shen Nong as a drink. 4. 这本书描述了茶叶是怎样种植和如何被用来泡制茶的。 The book . 5. 它讨论最好的茶叶在哪儿出产以及用什么样的水来泡茶。 It and . 6. 在上学的路上，李磊落入了河中。 Li Lei . 7. 她毫无疑问是我曾教过的最聪明的学生。 She . 第四课时 （Grammar Focus-4c） 一、翻译下列词组。 1. 以很低的价格 2. 拍这些照片 3. 单独外出 4. 把书翻译成不同种的语言 5. 突然 6. 从事，进行 7. 不到，少于 二、根据句意和所给单词的首字母补全单词。 1. The meat in the f is bad now. Please throw it away. 2. When the e came, the teacher in danger asked the students to escaped(逃跑) first. 3. The mobile phone is a very useful i . We can speak to the people far away. 4. Please l the door before you go out. 5. This kind of b is made of wheat(小麦). 三、单项选择。 ( ) 1. The price of this MP5 is not . I’m afraid I can’t afford it. A. low B. high C. short D. expensive ( ) 2. He thinks himself , but we think him nobody. A. nobody B. anybody C. somebody D. everybody ( ) 3. Don’t forget to the door when you leave home. A. lock B. open C. close D. buy ( ) 4. The earthquake happened , and so many people were badly hurt. A. over and over again B. little by little C. bit by bit D. all of a sudden ( ) 5. I can’t understand this article written in English. Could you it Chinese for me? A. provide; for B. translate; into C. remind; of D. connect; with 四、 把下列句子改为被动语态。 1. His father bought him a computer last month. A computer him last month. 2. Mike took care of his mother yesterday. Mike’s mother yesterday. 3. Did she make her bed this morning? her bed this morning? 4. The workers have built a bridge. A bridge by the workers. 5. We saw Tom go to the office just now. Tom to the office just now. 第五课时 （Section B 1a—1e） 一、翻译下列词组。 1. 错误地，无意地 2. 尝起来很脆 3. 不够薄 4. 使顾客高兴 5. 最后；终于 6. 在……上放了很多盐 7. 烹饪了很长时间 8. 土豆条 二、用所给此的适当形式填空。 1. Staying up too late make me (sleep). 2. He lost his key. It made him (stay) outside. 3. His joke made us (laugh). 4. Jack played football very well. So we made him our (lead). 三、按要求做题。 1. Potato chips (invent) in 1853. (用正确形式填空) 2. My mom put some on the food, so it was enough now. (salt) (用正确形式填空) 3. The customer were happy in the end. (同义句) The customer were happy . 4. The boy is very strong. He can lift the big stone. (合并成一句) The boy is lift the big stone. 5. Who cleaned the classroom? (改为被动语态) Who the classroom ? 四、综合填空。 Do you know that potato chips were invented by m ? Here on the book it says that they were invented b a chef(厨师) c George Crum. It was back in 1853. One day a customer in the restaurant w George worked sent back his plate of fried potatoes because he said they were c too thick. Then George was in a bad mood(心情), so he cut the potatoes really, really thin, and he c them for a long time until they were c . And he p lots of salt on them so they were really s . He thought the customer would hate them. But the customer loved them and a for more. He told the other customer about them, and soon everyone ordered thinly-sliced, crispy, salty potato chips. Now we are still eating them. What a cool story! 第六课时( section B2a-----2b) 一.短语翻译 1.把…分开_________________ 2.钦佩______________________ 3. 不但…而且…_________________ 4.阻止某人去干…_________________ 5. 在历史上_____________ 6.在那时_______________ 7.少于_____________ 8.发生________________ 9.突然____________________ 10.把…翻译成_________________ 11.….的历史___________ 12. 同时____________________ 13.导致_____________ 14.想出_________________ 15.据说__________ 16.人们相信it’s_____________ 17.这是因为_____________ 18. 超过_________ 19. 出生于____________ 20. 教…干…____________ 21.需要去干…__________ 22....的流行度_____________ 23. 全世界________________ 24.梦想干…_________________ 25. 看见某人正在干_______________ 26. …的数量_________________ 27.越来越多的_______________ 28.鼓励某人干…_______________ 29. 实现梦想____________________ 二用所给单词的适当形式填空。 1.Those great astronauts are _______(hero) of our country. 2. Our product enjoys _______(popular) through the world. 3.Wht are your plans for the _______(develop) of your company. 4.I’ve got three day’s holiday_____(include) New Year’s day. 5.Do you know a person _______(call)jack smith? 6.The price of a cup of coffee has _______(rise) by ten cents. 7.First,we went into Anrio Puroland which is a famous_______(indoor) theme park.. Then we played games_____(indoor). 8.If you go to______, you’ll be______(safe). 三．根据汉语完成句子 1.老师把同学们分成了三组 The teacher____________ the students _____________________ 2.运动员相撞是危险的 __________________________________ dangerous 3.人们相信中国能在下次比赛中获胜 It_______________________ that china will win the next match. 4.姚明已成为NBA最受欢迎的运动员之一 Yao Ming ____________________ one of _______________________ in NBA. 5.这个班的人数是46. ____________________ the students in this class _______ 46. 第七课时(section B2c---3b) 一．根据句意及首字母提示完成句子 1.The aim of basketball is for players to get a ball into the _______. 2.These people were ______ into two groups according to their ages. 3.Today the ________ of basketball has risen around the world. 4.Can you tell me who ________ the telephone? 5. The problem isn’t _________ in this article. 6.Although he’s ___________ 80,he is very active. 7.I found this information on their ______. 二.根据汉语意思提示完成句子 1.大家都相信台湾是中国的 _______________________ that Taiwan ______________ china. 2.学生们都很尊敬那位老教师 The student all ________________ the old teacher. 3不仅学生们在欣赏这部影片,他们的老师也在欣赏这部影片 Not only the students ____________________________________________ the film. 4.那个女人正在阻止他的儿子摘花 That woman is ____________________________ picking flowers. 5.我鼓励他用功并未这次考试做努力 I encouraged________________________ and to try for the examination. 第八课时(self check) 一.用所给单词的适当形式填空 1.at her birthday party, several baskets of fruit ______________(eat) 2.do you know when that tall building_____________(build) 3.the price of coffee has___________(rise) by five cents. 4.dad was so tired that he fell asleep while________(read) the newspaper. 5.the young man was seen__________(get) on a bus just now. 二.句型转换 1.They grow apple in Shandong(改为被动语态) Apples _______ ___________ in Shandong. 2.The teacher made the boy stand outside（改为被动语态） The boy ______ ______ ________ stand outside by the teacher. 3.There are 2,000 students in our school（改为同义句） The _______ ________ the students in our school _______ 2,000. 4.We use coats to keep warm.（改为同义句） Coats are _______ ________ ________warm. 5.Who invented the computer?（改为同义句） Who _____ the computer ______________ _____? 三．根据汉语完成句子。 1.算盘是什么时候发明的 ______ _________ the abacus________? 2.教室每天有人打扫 The classroom _____ ________ ________ ___________. 3.这是做什么用的？ What _____ it ________ ________? 4.由于交通堵塞，他上学迟到了He was late for school ______ ___________ the traffic jams 以下是这份人教版九年级英语Unit6课时训练的答案及解析： **Section A 1a-1c第一课时** 一、把下列句子改为被动语态 1. My books weren't lent to anybody by me. 原句中“lend sb. sth.”（借给某人某物）改为被动语态时，有两种形式“sth. be lent to sb.”或“sb. be lent sth.”，这里采用了“sth. be lent to sb.”的形式。根据原句的一般过去时否定形式，被动语态也用一般过去时的否定，“lend”的过去分词是“lent”。 2. Were gifts sent to your brother by you? 原句是一般过去时的一般疑问句，“send sb. sth.”（送给某人某物）改为被动语态“sth. be sent to sb.”，将“be”动词提前构成一般疑问句，“send”的过去分词是“sent”。 3. Her brother was bought a dictionary by her. “buy sb. sth.”（给某人买某物）改为被动语态“sb. be bought sth.”，根据原句一般过去时，用“was bought”，“buy”的过去分词是“bought”。 4. The biscuits were eaten by the boy in two minutes. 原句是一般过去时，“eat”的过去分词是“eaten”，将原句的宾语“the biscuits”提到主语位置，构成一般过去时的被动语态“were eaten”。 5. When was paper invented by people? 原句是一般过去时的特殊疑问句，“invent”的过去分词是“invented”，将原句的宾语“paper”提到主语位置，“was”提前，构成一般过去时的被动语态的特殊疑问句。 二、用括号内单词的适当形式填空 6. was invented 根据“many years ago”可知是一般过去时，“telephone”和“invent”之间是被动关系，所以用一般过去时的被动语态“was/were + 过去分词”，“invent”的过去分词是“invented”，“the telephone”是单数，用“was”。 7. is spoken “English”和“speak”之间是被动关系，陈述客观事实用一般现在时，所以用一般现在时的被动语态“am/is/are + 过去分词”，“English”是不可数名词，视为单数，用“is spoken”，“speak”的过去分词是“spoken”。 8. is made “car”和“make”之间是被动关系，陈述客观事实用一般现在时，“make”的过去分词是“made”，“the car”是单数，用“is made”。 9. be cleaned “room”和“clean”之间是被动关系，“must”是情态动词，情态动词后的被动语态结构是“情态动词 + be + 过去分词”，“clean”的过去分词是“cleaned”，所以填“be cleaned”。 10. taken “seat”和“take”之间是被动关系，“Is”是一般现在时的疑问形式，“take”的过去分词是“taken”，所以用“taken”构成一般现在时的被动语态的一般疑问句。 11. writes; sells “write”和“sell”在这里表示事物的属性，用主动形式表被动意义，主语“the kind of ballpoint pen”是单数，一般现在时中动词用第三人称单数形式，所以填“writes; sells”。 12. was caught; sent 根据“last month”可知是一般过去时，“thief”和“catch”以及“send”之间都是被动关系，所以用一般过去时的被动语态“was/were + 过去分词”，“catch”的过去分词是“caught”，“send”的过去分词是“sent”，“the thief”是单数，用“was caught; sent”。 13. was; set up 根据答语“In 2006”可知是一般过去时，“swimming club”和“set up”之间是被动关系，“set up”的过去分词是“set up”（原形和过去分词同形），所以用一般过去时的被动语态“was/were + 过去分词”，“the swimming club”是单数，用“was; set up”。 14. is being painted 根据“at the moment”（此刻）可知用现在进行时，“wall”和“paint”之间是被动关系，现在进行时的被动语态结构是“am/is/are + being + 过去分词”，“paint”的过去分词是“painted”，“it”指代“the wall”，是单数，用“is being painted”。 15. was told; be put off “我”和“tell”之间是被动关系，“meeting”和“put off”之间也是被动关系，根据语境可知用一般过去时，“tell”的过去分词是“told”，“put off”的过去分词是“put off”（原形和过去分词同形），所以第一空用一般过去时的被动语态“was told”，第二空“had to”后接动词原形，用“be put off”。 三、根据内容完成对话 16. different 根据下文提到过去也有电话等发明，可知这里问小时候的生活是不是很“不同”，“different”意为“不同的”。 17. modern 根据“like a telephone”可知这里说的是没有像电话这样的“现代”发明，“modern”意为“现代的”。 18. was invented “电话”和“invent”之间是被动关系，根据“in 1876”可知是一般过去时，所以用一般过去时的被动语态“was/were + 过去分词”，“invent”的过去分词是“invented”，“the telephone”是单数，用“was invented”。 19. weren't invented “汽车”和“invent”之间是被动关系，根据“yet”和“were they”可知是一般过去时的否定形式的反意疑问句，所以用一般过去时的被动语态的否定形式“wasn't/weren't + 过去分词”，“invent”的过去分词是“invented”，“cars”是复数，用“weren't invented”。 20. afford 根据“They were expensive in those days.”（在那些日子里它们很贵）可知是买不起，“afford”意为“买得起；负担得起”，“couldn't”后接动词原形，所以填“afford”。 21. was invented “电视”和“invent”之间是被动关系，根据“around 1927”可知是一般过去时，所以用一般过去时的被动语态“was/were + 过去分词”，“invent”的过去分词是“invented”，“the TV”是单数，用“was invented”。 22. personal “personal computers”意为“个人电脑”，“personal”意为“个人的”，修饰“computers”。 23. one 根据上文说过去没有个人电脑，这里说现在有了，用“one”指代“a personal computer”。 四、翻译句子 24. When was the computer invented? “发明”是“invent”，“computer”和“invent”之间是被动关系，询问时间用“when”，根据语境用一般过去时的被动语态“was/were + 过去分词”，“invent”的过去分词是“invented”，“the computer”是单数，用“was invented”。 25. Who invented the computer? “谁”是“who”，“发明”是“invent”，根据语境用一般过去时，“invent”的过去式是“invented”，“the computer”是宾语。 26. What is the computer used for? “什么”是“what”，“用于”是“be used for”，“computer”和“use”之间是被动关系，根据语境用一般现在时的被动语态“am/is/are + 过去分词”，“the computer”是单数，用“is used for”。 27. I think the TV was invented before the car. “认为”是“think”，“电视”和“发明”之间是被动关系，根据语境用一般过去时的被动语态“was/were + 过去分词”，“invent”的过去分词是“invented”，“the TV”是单数，用“was invented”，“before”表示“在……之前”。 28. The computer was so expensive at that time that we couldn't afford it. “如此……以至于……”是“so...that...”，“昂贵的”是“expensive”，“买不起”是“can't afford”，根据“那个时候”可知用一般过去时，“can't”的过去式是“couldn't”。 **Section A 2a-2d 第二课时** 一、根据汉语提示完成单词 1. style “款式”常见英文表达为“style”，“I like the color of this coat but I don’t like its style.” 意思是“我喜欢这件外套的颜色，但我不喜欢它的款式”。 2. pleasure “高兴”，“It’s my great pleasure to have a talk with you.” 表示“和你交谈是我极大的荣幸”，“pleasure”作“乐事；荣幸”讲时是可数名词，这里用单数。 3. daily “日常的”英文是“daily”，“in my daily life”意为“在我的日常生活中”，修饰名词“life”。 4. website “网站”是“website”，“Julia introduced a good website to me to learn English.” 意思是“朱莉娅给我介绍了一个学习英语的好网站”。 5. lists “列清单”是“list”，“My mother always lists all things that she wants to buy before shopping.” 主语“my mother”是第三人称单数，一般现在时，动词用第三人称单数形式“lists”。 二、根据听力材料填空 6. with “shoes with lights”表示“带灯的鞋子”，“with”表示“带有；具有”。 7. seeing “be used for doing sth.”表示“被用来做某事”，“seeing in the dark”表示“在黑暗中看”，“see”的动名词形式是“seeing”。 8. hurt “hurt the toe”表示“伤到脚趾”，“may”是情态动词，后接动词原形，所以填“hurt”。 9. bathroom 根据“get up at night”（在晚上起床）可知是在去“浴室”的路上可能会伤到脚趾，“bathroom”意为“浴室”。 10. runs “run on electricity”表示“靠电运行”，主语“it”是第三人称单数，一般现在时，动词用第三人称单数形式“runs”。 11. hot 根据“ice-cream scoop”（冰淇淋勺）和“really cold ice cream”（非常冷的冰淇淋）可知它会变“热”，“hot”意为“热的”。 12. serving “be used for doing sth.”表示“被用来做某事”，“serving really cold ice cream”表示“供应非常冷的冰淇淋”，“serve”的动名词形式是“serving”。 13. changing “be used for doing sth.”表示“被用来做某事”，“changing the style of your shoes”表示“改变你鞋子的款式”，“change”的动名词形式是“changing”。 14. down “up and down”是固定短语，意为“上上下下”，“You can move the heels up and down.” 意思是“你可以把鞋跟上下移动”。 15. raise “raise the heels”表示“抬起鞋跟”，“can”后接动词原形，所以填“raise”。 16. lower “lower the heels”表示“降低鞋跟”，“can”后接动词原形，所以填“lower”。 三、根据句意，用pleasant, pleased或pleasure填空 17. pleasant “pleasant”是形容词，意为“令人愉快的；舒适的”，“a pleasant time”表示“一段愉快的时光”，修饰名词“time”。 18. pleased “pleased”是形容词，意为“高兴的；满意的”，“be pleased to do sth.”表示“很高兴做某事”，“He will be pleased to help you.” 意思是“他会很高兴帮助你”。 19. pleasure “pleasure”是名词，意为“愉快；快乐”，“Reading gives me great pleasure.” 表示“阅读给我带来极大的快乐”。 20. pleasure “give sb. pleasure”表示“给某人带来快乐”，“It gives me pleasure to see you looking happy.” 意思是“看到你看起来开心给我带来快乐”。 21. pleasant “pleasant”是形容词，意为“令人愉快的；舒适的”，“a pleasant day”表示“愉快的一天”，修饰名词“day”，“We spent a pleasant day in the country.” 。 22. pleased “make sb. + 形容词”表示“使某人……”，“pleased”意为“高兴的；满意的”，“I think it is impossible to make everyone pleased.” 意思是“我认为让每个人都满意是不可能的”。 四、翻译句子 23. The zipper was invented by Whitcomb Judson in 1893. But it wasn't widely used at that time. “拉链”是“zipper”，“发明”是“invent”，“zipper”和“invent”之间是被动关系，根据“in 1893”可知用一般过去时的被动语态“was/were + 过去分词”，“invent”的过去分词是“invented”，“the zipper”是单数，用“was invented”；“广泛应用”是“be widely used”，“在那时”是“at that time”，根据语境用一般过去时的否定形式“wasn't widely used”。 24. The subject for my school project is "Small Inventions That Changed the World". “学校作业”是“school project”，“主题”是“subject”，“改变世界的小发明”是“Small Inventions That Changed the World”，根据语境用一般现在时，“the subject”是单数，谓语动词用“is”。 25. I like shoes with special heels. “鞋子”是“shoes”，“鞋跟很特别的”用“with special heels”作后置定语修饰“shoes”，“I like shoes with special heels.” 。 26. The pioneers of different inventions are listed there. “不同发明的”是“of different inventions”，“先锋者”是“pioneers”，“被列在那儿”用被动语态“be listed there”，根据语境用一般现在时，“the pioneers”是复数，用“are listed there”。 27. Think about how often we use it in our daily life. “想一想”是“think about”，“多么频繁地”是“how often”，“在我们日常生活中”是“in our daily life”，“Think about how often we use it in our daily life.” 。 **Section A 3a-3c 第三课时** 一、翻译下列词组 1. by accident 2. It is said that... 3. fall into the water 4. on the fire 5. make tea 6. the finest tea leaves 7. the Saint of Tea 8. take place 9. without doubt 二、根据句意及首字母提示填词 1. nearly “他几乎没有听到老师在课堂上说的话”，“nearly”意为“几乎；差不多”。 2. boiling “我正在煮牛奶。一会儿你想尝一下吗？”，“boil”意为“煮；烧开”，根据“am”可知用现在进行时“be + 动词的现在分词”，“boil”的现在分词是“boiling”。 3. remains “约翰成为了一名经理，但迈克仍然是一名工人”，“remain”意为“仍然是；保持”，主语“Mike”是第三人称单数，一般现在时，动词用第三人称单数形式“remains”。 4. ruler “在古代，皇帝是整个国家的统治者”，“ruler”意为“统治者；支配者”，根据“the emperor”可知用单数形式。 5. doubt “毫无疑问她会成功，因为她一直努力工作”，“There is no doubt that...”是固定句型，意为“毫无疑问……”，所以填“doubt”。 三、用方框中所给词的适当形式填空（由于你未提供方框中的词，这里假设词为“invent, discover, produce, trade, smell”） 1. invented “世界上最受欢迎的饮料之一是偶然被发明的”，“drink”和“invent”之间是被动关系，用一般过去时的被动语态“was/were + 过去分词”，“invent”的过去分词是“invented”，“one of...”作主语时，谓语动词用单数，所以填“invented”。 2. discovered “茶最早是在5000年前被神农发现的”，“tea”和“discover”之间是被动关系，用一般过去时的被动语态“was/were + 过去分词”，“discover”的过去分词是“discovered”，“tea”是不可数名词，视为单数，所以填“discovered”。 3. produced “当茶叶掉进热水里时，产生了一种好闻的气味”，“smell”和“produce”之间是被动关系，用一般过去时的被动语态“was/were + 过去分词”，“produce”的过去分词是“produced”，“a nice smell”是单数，所以填“produced”。 4. brought “茶在6世纪和7世纪被带到了韩国和日本”，“tea”和“bring”之间是被动关系 学科网（北京）股份有限公司 $$