最新人教新目标初中英语九年级上册Unit 6 When was it invented Section B3a Self Check公开课教学设计
新目标九年级英语Unit6SectionA（1a-2d）习题含答案
新目标九年级英语Unit6SectionA（1a-2d）习题含答案Unit 6 When was it inventedSection B (1a—2b)Ⅰ. 根据句意及所给首字母提示，补全句中所缺单词。
1. Paul was very brave. We all regarded him asa h .2. Laura added too much salt to the soup. Now it tastestoo s .3. The potato chips are thin and c . Please havea try.4. Many people use cloth bags and bamboo b to do their shopping.5. Oranges taste sweet and a bit s and they are full of vitaminC.6. The main purpose of the advertisement ismaking c spend money.7. Norman Bethune was a C doctor. He waswell-known for helping Chinese people in the war.Ⅱ. 根据汉语意思及括号内所给英文提示语，将下列句子翻译成英语。
1. 乔(Joe)梦想去欧洲。
(dream of)____________________________________________2. 我们应该阻止吉尔(Jill)离开。
(stop ... from ...)____________________________________________3. 刚才贝姬(Becky)无意中拿了我的手机。
(by mistake)____________________________________________4. 大部分年轻人仰慕体育明星和歌星。
人教版九年级英语全册Unit6Whenwasitinvented课优秀教学案例
问题导向是本节课的核心教学策略。我将设计一系列有趣、具有挑战性的问题，引导学生主动探究、思考。例如，在讲解一般过去时态时，我会提问：“How did the inventors feel when they made their inventions?” “Can you describe the process of an invention using the past tense?”通过这些问题，激发学生的好奇心，培养他们的创新思维。
3.阅读技能：引导学生阅读课本中关于发明家的故事，分析文章结构，学习作者如何使用一般过去时态描述发明过程。同时，让学生关注文章中涉及的情感态度和价值观。
（三）学生小组讨论
1.分组讨论：将学生分成若干小组，每组选择一个发明家或发明创造，收集相关信息，包括发明时间、地点、过程、影响等。
2.小组展示：各小组整理好资料后，进行课堂展示，用英语介绍他们所了解的发明家或发明创造。其他小组认真聆听，并进行点评。
2.语言技能：学生能够听懂并获取关于发明创造的信息，提高听力水平。在口语方面，学生能够运用所学知识进行小组讨论，介绍某个发明及其对人类生活的影响。此外，通过阅读课文及相关发明家的故事，提高学生的阅读理解能力，培养他们的信息筛选和整合能力。
3.写作技能：学生能够运用一般过去时态，撰写一篇关于发明创造的小短文，描述发明的时间、地点、过程及影响。
人教版九年级英语全册Unit6Whenwasitinvented课优秀教学案例
一、案例背景
在我国初中英语教学中，人教版九年级全册Unit 6 "When was it invented?"一直是备受关注的一课。本课以发明创造为主题，旨在帮助学生掌握一般过去时态，了解世界各地的发明及其对人类生活的影响。作为一名特级教师，我深知本节课对于激发学生好奇心、培养创新意识的重要性。因此，本教学案例将结合课程主要内容，以实际教学为出发点，注重学科交叉，提升学生的英语素养。
九年级英语全册-Unit-6-When-was-it-invented？知识点总结-(新版)人教新目标版
Unit 6 When was it invented? 【重点单词】1. project n. 项目，工程；2. pleasure n. 高兴，愉快；3. daily adj. 日常的，每日的；4. mention v. 提到，说到；5. nearly adv.几乎，差不多；6. boil v. 煮沸，烧开；7. remain v. 保持不变；剩余；8. national adj.国家的，民族的；9. low adj.低的，矮的；10. translate v. 翻译；11. lock v.锁上；n. 锁；12. sudden adj. 突然的13. crispy adj. 脆的；酥脆的；14. salty adj. 咸的；15. sour adj. 酸的，有酸味的；16. customer n. 顾客。
17. Canadian 加拿大的，18. divide v. 分开，分散；19. hero n 英雄，男主角；20. professional adj. 职业的，专业的；【重点词组】1. shoes with special heels 特殊后跟的鞋子2. hot ice cream scoop 热的冰其淋勺子3. run on electricity 电动的4. be used for 被用作5. the subject for my school project 学校项目的课题6. our daily lives 我们的日常生活7. have a point 有点道理8. by accident 偶然，意外地9. over the open fire 在火堆上10. fall into the water 落入水中11. take place 发生12. without doubt 毫无疑问13. at a low price 以一个很低的价格14. translate the book into different language 把书翻译成不同种的语言15. all of sudden 突然16. by mistake 错误地17. a much-loved and active sport 一个深受喜爱并且积极的运动18. divide…into 把…分开19. stop sb. from doing sth. 阻止某人做某事20. look up to 钦佩，仰慕21. the professional basketball groups 职业篮球机构22. use someone else’s idea 借用其他人的想法【重点句式】1. I think the TV was invented before the car. 我认为电视是在轿车之前发明的。
人教版英语九年级全册Unit6WhenwasitinventedSectionB教学设计
（二）教学设想
1.针对重难点，采用以下教学策略：
a.利用多媒体和实物展示，生动形象地展示发明物品，帮助学生更好地记忆和理解新词汇。
b.创设情境，让学生在实际语境中练习一般过去时的被动语态，加强语法知识的应用。
c.设计不同难度的问题，引导学生积极参与阅读理解活动，培养他们的阅读策略和信息获取能力。
3.学生跟随教师一起朗读课文，注意语音、语调的模仿。
4.教师针对课文中的重点词汇和短语进行讲解，如“invent”, “telescope”, “radio”, “photograph”, “electricity”, “convenient”等，并让学生进行实际操作，加深记忆。
5.学生结合课文内容，运用一般过去时的被动语态进行句子练习。
1.教师设计一系列练习题，包括填空、选择、改写句子等，让学生巩固一般过去时的被动语态。
2.学生独立完成练习题，教师巡回指导，解答学生的疑问。
3.教师选取部分学生的练习题进行讲解，分析错误原因，并进行纠正。
4.学生进行角色扮演，模拟采访和新闻报道，运用所学知识进行口语表达。
（五）总结归纳
1.教师带领学生回顾本节课所学内容，包括一般过去时的被动语态、发明相关的词汇和短语等。
d.以小组合作的形式，让学生进行角色扮演，模拟采访和新闻报道等，提高口语表达能力。
2.教学过程设想：
a.导入：通过展示一些发明物品的图片，激发学生的好奇心，引导他们猜测和讨论这些物品的发明时间和发明者。
b.新课内容呈现：呈现课文内容，引导学生关注一般过去时的被动语态，并通过实例讲解和练习，帮助学生掌握这一语法点。
b.设计形式多样的评价任务，如小组讨论、角色扮演、阅读理解等，全面评估学生的学习效果。
九年级新目标英语Unit6_When_was_it_invented_Section_A(3a-3c)
• Saint n.(名词) 圣徒, 圣人，圣者 ，
• Only a saint can put up with her children. 只有圣人才能容忍她的孩子们。
national形容词，意为“国家的;全国的”。 其名
词形式为nation“国家; nationality “ 国
籍”。
►The British national flag is red, white and
3b Read the passage again and answer the questions.
1.When was tea first drunk?
It was first drunk nearly 5,000 years ago.
2.How was tea invented?
While Shen Nong boiling drinking water
他几乎没说什么值得听的东西。
• ruler名词，意为“统治者;支配者” • ► A king is a ruler. 国王是统治者
boil v.
boil
[bɔɪl] ( boils; boiled; boiling ) v.沸腾；煮沸 Out in the sun all day, the blood starts to boil. 整天在太阳底下，血液都开始沸腾了。；
初三英语上册(人教新目标)Unit6Whenwasitinvented知识点总结
初三英语上册（人教新目标）Unit 6 When was it invented?知识点总结一、重点辞汇·原文再现They are used for changing the style of the shoes.它们被用于改变鞋的样式。
·大体用法style n. 样式；样式Our children's different needs and learning styles created many problems.孩子们不同的需求和学习方式给咱们带来了许多问题。
·知识拓展---相关短语learning style 学习方式，学习风格life style 生活方式hair style 发型out of style 过时的Her dress is out of style.她的穿着不时兴。
·原文再现The subject for my school project is "Small inventions that changed the world."学校课题的题目是：改变世界的小发明“·大体用法project n. 项目；工程Project Hope 希望工程The project will create up to 40 new jobs.这项工程将提供40个新的工作职位。
·知识拓展---其他词性project v. 计划（plan）The next edition of the book is projected for publication in March.本书的下一版计划于三月发行。
·原文再现--Can you help me think of an invention?你能帮忙我想一个发明吗？--My pleasure！我很荣幸。
·大体用法pleasure n. 高兴；愉快Watching sport gave him great pleasure.观看体育比赛给他以极大的愉悦。
九年级英语全册Unit6Whenwasitinvented知识点讲解及练习素材人教新目标版(new)
Unit 6 When was it invented？【知识点整理】1。
被动语态(1）被动语态表示句子的主语是谓语动词所表示的动作承受者.(2）被动语态基本结构：be+及物动词的过去分词（如果是不及物动词,其过去分词应带有相应的介词）（3）被动语态中的be 是助动词,有人称、数和时态的变化。
一般现在时的被动语态为:am/is/are+过去分词一般过去时的被动语态为：was/were+ 过去分词与情态动词连用的被动语态：情态动词+ be + 过去分词（4）被动语态中动作的发出者或执行者做介词by的宾语，放在句末，by 表示“由,被”的意思，如何理解被动语态？主动语态：主语+谓语动词+宾语+其他成分被动语态：主语+be+过去分词+by+宾语+其他成分如：Many people speak English.English is spoken by many people。
3。
invent v。
发明inventor n. 发明家invention n。
发明,可数名词4. be used for doing ，用来做…（是被动语态）Pens are used for writing. 笔是用来写的。
5。
给某人某样东西give sth。
to sb。
I gave a pen to him。
我给他一支笔.give sb. sth。
I gave him a pen。
我给他一支笔。
6。
all day 整天7。
salty adj。
咸的salt n. 盐8. by mistake 错误地（犯错是:make mistake,这些常见的短语大家务必要掌握）I took the umbrella by mistake. 我不小心拿错了雨伞。
9。
make sb./sth+形容词：使…怎么样It made me happy。
它使我高兴make sb./sth+名词：让…做…It made me laugh。
它让我发笑10. by accident 意外，偶然（常见短语，考的最多的是它的意思)I met her by accident at bus stop. 我在公共汽车站意外地见到了她。
人教新目标英语九年级 Unit 6 When was it invented？SectionA(Gr
Unit6 SectionA（Grammar focus-4c）学案【学习目标】1．掌握下列词汇：bell，musical，instrument，biscuit，fridge，low2．进一步复习巩固学习Section A部分所学的生词和短语。
3．进一步学习运用一般过去时态的被动语态。
4. 运用一般过去时态的被动语态完成相应练习。
5. 面对难题，用积极的态度去解决，发挥想象力，认识世界，改造世界。
【重点和难点】学习重点：1. 学习生词fridge, low, somebody, translate, lock, earthquake, sudden, all of a sudden, biscuit, cookie, instrument22. 复习巩固Section A 部分所学的生词和词组，达到熟练运用的目标。
学习难点:1. 一般过去时态的句子变为被动语态。
2. 综合运用所学的知识进行练习运用。
【课前预习】一、学出单词和短语1. 冰箱n. ________2. 低的；矮的adj. ________3. 某人n. ________4. 锁上；锁住v. 锁n. ________5. 发出铃声；打电话v. ________6. 地震n. ________7. 突然（的）adj. ________8. 钟（声）；铃（声）n.________9. 饼干n. ________10. 曲奇饼n. ________11.音乐的；有音乐天赋的adj. ________12.器械；仪器；工具n. ________二、根据句意及首字母提示完成单词。
1. Food is put in the f_________ to keep fresh.2. The music was so beautiful, it went high and l_________, up and down.3. The book was t___________ into different languages.4. When I got to my classroom, I found the door was l_________. So I had to wait for half an hour until they came.5. Most of the buildings and trees fell down after the e__________.【合作探究】探究一、一般过去时被动语态的结构观察下面例句总结被动语态的结构。
人教版新目标英语九年级(全一册)Unit 6《When was it invented》 短语及综合测试题(含答案)
Unit 6 When was it invented?词汇学习和练习附参考答案Key Phrases1. be invented in+时间/ 地点被发明于某年某地be invented by sb被某人发明的shoes with special heels有特殊鞋跟的鞋子2. shoes with lights有灯的鞋子see in the dark 在黑暗中看路3. be used for doing sth = be used to do sth被用来做某事（表用途）be used as 被当作……使用（强调当作工具或手段使用）be used by sb . 被某人使用（强调使用者）4. change the style of the shoes改变鞋子的样式/款式5. hot ice-cream scoop冰激凌加热勺6. change the world改变世界think of =come up with想出7. so great an invention=such a great invention 如此了不起的一项发明8. my pleasure乐意效劳，不用谢，别客气9. have a point说得有理10. think about考虑;思考11. in our daily lives在我们的日常生活中12. the pioneers of different inventions不同发明物的先锋/先驱者13. be listed被列清单14. at that time在那时15. be used widely被广泛使用16. become popular变得流行17. spread to sp传播到某地18. by accident= by chance偶然;意外地be the first person to do sth. 第一个做某事的人19. it is said that clause 据说…… It is believed that clause人们相信It is said that clause据说It is reported that clause据报道It is thought that clause人们认为It is heard that clause听说aChinese rulers called Shen Nong一个叫神农的统治者20. drinking water 饮用水over an open fire在野外的炉火上21. fall into.= drop into掉入22. for some time一段时间produce a nice smell 产生/散发出一股香味remain there 留在那里23. the saint of tea茶圣24.the finest tea leaves最好的茶叶.make tea 沏茶/泡茶25. be brought to SP.被带到某地be brought to the Western world被传到西方世界26. during the 6th and 7th centuries在六至七世纪间27. not... until...直到……才…… 31.less than… 不到…，少于…in less than 100 years在不到100年的时间里ove.=more than 多于32. the national drink全国性的饮品33.from China to Western countries 从中国到西方国家take place发生（无被动语态）34. even though=even if 即使the popularity of tea 茶的普及35. without doubt毫无疑问36. the nature of tea茶的本质tea culture 茶文化37. daily life = everyday life 日常生活38. at a low price 以低的价格39. stealsth. from sb./ sp. 从某人/某地偷东西40. advise sb. (not) to do sth建议某人(别)做某事41. translate... into… 把……翻译成……42. all of a sudden= suddenly突然;冷不防43. ring the bell 按铃break the rules 违反规定follow the rule 遵守规定a safe place一个安全的地方44. musical notes音符;音律45. potato chips 薯条by mistake错误地make mistakes in sth在某事上犯错mistake A for B 错把A当成B 46. make the customer happy使顾客髙兴salty enough 够咸enough salt 足够的盐47.in the end= at last =finally 最后at the end of…在…….末端/ 尽头100 million people一亿人48.for fun为了娱乐、消遣in history在历史上. in the1950s 在二十世纪五十年代49. on a hard floor在一块坚硬的地板上50. get a ball into the basket 把球投进篮子divide... into把......分成51. Stop sb./sth from doing sth阻止某人做某事/ 阻止某事发生.52. the number of... ……的数量(谓语动词用单数）a number of = many 许多(谓语动词用复数）atthe same time 同时53. look up to钦佩;仰慕54.encourage sb. to do sth.鼓励某人做某事not only... but also... 不仅……而且…… e up with = think up 想出56.become an Olympic event成为一项奥运会项目the popularity of … …的流行，普及57.achieve one’s dreams 实现某人梦想58. dream of doing sth梦想干某事一选择题( ) 1．Mo Yan is famous _______ an excellent writer. And China is famous ______ culture.A. for; asB. as; forC. because; asD. as; for( ) 2. --When will A Bite of China II begin tonight?--It ________ for ten minutes.A. will beginB. has begunC. will be onD. has been on( ) 3. Sixteen-year-olds shouldn’t ______ to go to an Internet bar.A. be allowedB. be allowC. allowD. are allowed( ) 4. ---I’m not hungry but thirsty.---________A I’m hungry, too.B What about some cakes?C I’m happy to hear that.D How about a glass of water?( ) 5.— We can use QQ to talk with each other online.— Really? Could you please show me _______ it?A. what to doB. how to doC. when to doD. why to do( ) 6.As we know, _____of us likes pollution.A. no oneB. noneC. someoneD. nothing( ) 7.—Lily, _____ you _____ your ticket?—Not yet!A. did; findB. have; foundC. has; foundD. do; find( ) 8.When we went into the park, we were saw _____ Chinese Kungfu.A. playsB. played C .to play D. playing( ) 9.The invention was Wednesday afternoon.A. invented，inB. invented ，onC. inventing，of D, invent，for( ) 10. --------Remember this , children .________ you study,________ knowledge you will get.--------We know, Mr. Green.A. The harder, the lessB. The hard, the moreC. The harder, the moreD. harder, more( ) 11. Our teacher told us that the eartharound the sun.A. wentB. goC. goesD. would go( ) 12. Our classroom _____ every day, so it’s very clean.A. cleansB. is cleaningC. is cleanedD. cleaned( ) 13. Would you like to tell me _________next, Mr. Feng?A. what should we doB. we should do whatC. what we should doD. should we do what ( ) 14.——How is your grandma? ——She’s fine. She used to _____TV at home after supper. But now she is used to _____out for a walk.A. watch; goB. watching; goC. watching; goingD. watch; going( ) 15.Windows _________ glass，the paper ________ bamboo. A. be made of , be made ofB. are made of , is made ofC. are made of ,is made fromD. are made from., is made of( ) 16. — My dream is to build university on the moon some day.— It sounds likeunusual dream. I wish you could realize it.A. a; aB. an; aC. a; anD. an; an( ) 17. I didn’t think maths _______ important at that time.A. isB. wereC. areD. was( ) 18.nice glasses! Where did you buy them?A. HowB. What aC. WhatD. How( ) 19. Excuse me, would you please tell me ______buy a digital camera on line?A. what to B .how to C. what I can D. how can I( ) 20. Someone says, “Money is everything.” But I think time is _____ important than moneyA. muchB. lessC. much leastD. even more( ) 21 ____ Jack ____ Jim has been to to China, but ___ of them knows little about China in fact.A. Either; or; bothB. Neither; nor; bothC. Not only; but also; neitherD. Both;and; neither( ) 22．We don't know _________ he will come tomorrow．_________ he comes，We 'll tell you．A．if；Whether B．whether；Whether C．if；That D．if；If()23.The knife is used ________ cutting.A．for B．as C．by D．/()24.—I'm very________ with my own cooking. It looks nice and smells delicious.—Mm, it does have a ________ smell.A．pleasant; pleased B．pleased; pleased C．pleasant; pleasant D．pleased; pleasant ()25.The song came to my ears ________ accident.A．by B．with C．in D．for()26.The meeting ________ last Sunday night.A．happening B．happened C．took place D. takes place()27.Who were the zippers invented ________？A．by B．for C．with D．at()28.—Thanks for the delicious food. —________.A．No, thanks B．That's right C．All right D．My pleasure()29.The corn, potato and tomato are plants that were first ______ in America by Columbus.A．invented B．grown C．discovered D．found out()30.The car ________ by the policeman because the driver was drunk (喝醉的)．A．stopped B．was stopped C．were stopped D．stops二完形填空Some years ago, Chinese high school students would show their school-bags, new clothes or new pens to their classmates when the new term started, Today, however, all have 1 .If you still come back to school 2 only these things, you are falling out-of-date(过时). Students in big cities like to bring the latest high-tech things to school, and feel happy and 3 to show off(炫耀) these things to_4_. Mobile phones, MP3 players, CD players, electronic dictionaries, the list is endless.Young people think that, living in the twenty-first century, they must keep up with the _5. They don’t want to fall 6_ . Besides, they think _7_ they need to keep in touch with their classmates, so they need mobile phones. They also like to _8_ the pop music, so they need CD players. They explain that, 9_ like electronic dictionaries, these can be _10 in their study, 11 . They think that their parents should understand 12_ they want these things.Foreign students will also bring some latest high-tech things when they 13to school at the beginning of a new term. _14_ , they often use the money which they made by themselves during the holiday to 15_ these high-tech things that they want.( ) 1. A. changed B. come C. joined D. stopped ( ) 2. A. to B. from C. of D. with( ) 3. A. right B. lucky C. nice D. pleased ( ) 4. A. other B. the other C. others D. he others( ) 5. A. times B. days C. years D. date ( ) 6. A. down B. off C. behind D. back( ) 7. A. that B. how C. if D. which ( ) 8. A. hear B. listen to C. read D. play( ) 9. A. look B. just C. feel D. something ( ) 10. A. new B. modern C. latest D. useful( ) 11. A. also B. too C. either D. then ( ) 12. A. where B. which C. what D. why( ) 13. A. return B. return back C. reach D. arrive ( ) 14. A. But B. However C.So D. Still( ) 15. A. borrow B. buy C. lend D. take三首字母填空。
初中英语人教版九年上Unit6 When was it invented重点词汇辨析与运用
Unit 6 When was it invented 重点词汇辨析与运用2024-2025学年上学期初中英语人教版九年级一、重点词汇翻译1．n.鞋跟；足跟2．n.勺；铲子3．n.电；电能4．n.样式；款式5．n.项目；工程6．n.拉链；拉锁7．n.网站8．n.先锋；先驱9．v.列表；列清单n.名单；清单10．v.提到；说到11．n.白天；一天→adj.每日的；日常的12．v.使高兴→n.高兴→adj.高兴的；乐意的13．v.煮沸；烧开14．v.保持不变；剩余15．n.疑惑；疑问v.怀疑16．n.贸易；交易v.做买卖；从事贸易17．adj.流行的→n.受欢迎；普及18．n.事故→ adj.意外的；偶然的19．n.国家；民族→adj.国家的；民族的20．v.统治；支配n.规则→n.尺子；统治者；支配者21．n.气味v.发出……气味；闻到→(过去式) →(过去分词) 22．n. 冰箱23．adj. 低的；矮的24．v. 锁上；锁住n. 锁25．n. 地震26．n. 钟(声)；铃(声)27．n. 饼干28．n. 曲奇饼29．n. 器械；仪器；工具30．pron. 某人n. 重要人物31．v. 翻译→n. 翻译32．adj. 突然(的) →adv. 突然33．n. 音乐→adj. 音乐的；有音乐天赋的→n.音乐家34．v. (使) 发出钟声或铃声；打电话→(过去式) →(过去分词) 35．adj.脆的；酥脆的36．n.盐→adj.咸的37．adj.酸的；有酸味的38．n.顾客；客户39．v.分开；分散40．n.篮；筐41．adv.几乎42．n.英雄；男主角→(复数)43．n.职业→a dj.职业的；专业的44．n.加拿大→adj.加拿大的；加拿大人的n.加拿大人二、词汇辨析与用法45．style名词，意为“样式；款式；方式；风格”，短语表示“时髦的；流行的”；短语表示“过时的”。
46．pleasure名词，意为“高兴；愉快”，其相关词为：“v. 使满意；使愉快”；“adj.满意的；高兴的”；“adj.令人愉快的”。
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When was it invented
第 4 课时 SectionB(3a〜Self Check)
【教学目标】
【课堂导学案】
Ste
1情景导入(3分钟)
P
Questions :
(1)Who like basketball?
(2)Do you watch basketball games?
(3) How much do you know about this sport?
Step 2 完成教材3a〜Self Check教学任务
1.根据3a所给表格列举出的内容提示，想些你不喜欢做的事，然后想一些发明来帮助你，
然后和同伴进行交流，写出提要。
(3分钟）
2.假设你现在是一名商人，根据3a写的提要以及 3b方框中所给的句型、短语提示写出一篇描述你的新发明的文章，介绍这种新产品并设法卖给你的同学们。
学生完成后评出优秀的作文在班上展示。
(5分钟）
3.用方框中所给单词的正确形式完成1部分的短文，然后让1位学生朗读短文同时核对答案。
（5分钟）
4用被动语态改写句子。
让5位学生在黑板上做，同时核对答案。
（5分钟）
5.查找更多有关你最想了解的一项发明的信息，然后用所给提示写句子。
（4分钟）
Step 3问题探究(4分钟)
（ C )1. It’s that the earth is round.
A.believe
B. say
C. believed
D. saying
（ D )2. A number of the students _ on the
playground now. The number ____
3,000.
A. is；is
B. is;are
C. are;are
D. are;is
（ B )3. The traffic accident stopped me from
_to the station on time.
A. get
B. getting
C. to get
D. got
（ C )4. He dreamed ____ a snake(蛇）.
A. on
B. with
C. of
D. in
根据句意及汉语提示完成句子。
1. These people were divided (分开）into two
groups according to their ages.
2. Look, a few pear remain (保留）on the trees. Let’s pick them.
3. It’s said that the potato chips were invented by
mistake (错误).
4. The hot weather made the milk sour (酸的）.
5. My gandparents often goes shopping with a basket (篮子).。