Unit 6 When was it invented?（6课时表格式教案）

九年级英语第6单元第1课时
Unit 6 When was it invented?
Section A （1a—2d）
一、【教材分析】
教
学
目
标
知识
目标
1. 会听说读写下列单词：
heel, scoop, electricity, style, project, pleasure, zipper, daily, have a point, website, pioneer, list, mention.
2. 正确使用以下常用表达：
1) be used for, think of, have a point, become popular.
2) shoes with special heels, shoes with lights, such a great invention, in our daily lives, at that time.
3. 熟练掌握并使用下列重点句式：
1）—When was the telephone invented? —I think it was invented in 1876.
2）—What are they used for? — They’re used for….
能力
目标
了解一般过去时的被动语态用法，通过听力，了解一些发明的相关历史知识，如发明人，发明时间及发明物的用途等。
情感
目标
通过互相询问发明物、发明人、发明用途，感受发明给人类生活带来的巨大变化。
教学重点
1．询问发明物的发明时间、发明者、发明用途。
2．理解含有一般过去时的被动语态的表达方式。
3．就发明这一话题进行对话练习。
教学难点
1．用被动语态询问发明物的时间、发明者和发明用途。
2．理解含有一般过去时的被动语态的表达方式。
教学方法
情境教学法；任务型教学法
二、【教学流程】
环节
师生活动
二次备课
I. 复习
热身
1、检查生词预习。
（1）先通过PPT呈现本课的单词，教师领读，学生跟读，并帮助学生正音。
（2）做题巩固。根据句意选择合适的单词。
① —Could you help me with my English?
—With _________(pleased/ pleasure).
② My father usually goes through the ________(day/daily) newspaper every evening.
③ She often buys new clothes and they are all in __________ (style/new).
④ I think so because I saw a __________ (information/website) last week.
⑤ I read a newspaper yesterday and it __________ (mentioned/mention) the pollution.
答案：① pleasure ② daily ③ style ④ website ⑤ mentioned
2、自由交谈
学生观看“外国人眼中的中国古代十大发明”视频片段，谈论以下两个问题。
（1）What are the Four Great Inventions in ancient China?
（2）Who invented them?
Ss: Paper-making was invented by Cai Lun.
…was invented by…

Ⅱ.感知
体验
感知1. 用PPT呈现下列图片和目标语言。

目标语言：
A: I think … was invented before….
B: Well, I think … was invented after ….
A: When was the … invented?
B: I think it was invented…
体验1.课堂小游戏。全班分成两组，每组出四个代表。游戏规则：每组的四名同学分别命名为car, phone, computer, television，当一组同学问出When was the car invented? 另外一组叫car的同学要马上说出I think it was invented in 1885，然后游戏继续，由car继续发问。答题过慢，时间说错或句法有问题都算错。
感知2．用PPT出示一系列问题（见课件），引导学生找出本小节的目标语言和单词词组。
目标语言：What are they used for? They are used for….
单词词组：heel, scoop, electricity, style, shoes with special heels, shoes with lights，be used for…
体验2. 小组之间进行对话练习
A: How about the shoes with lights, what are they used for?
B: They are used for seeing in the dark when you get up at night.
感知3. 通过问题提示阅读的方式（见课件），学生找出2d部分的目标语言和单词词组。
目标语言：When was the zipper invented? It was invented in 1893.
Who was it invented by? It was invented by Whitcomb Judson.
单词词组：project, pleasure, zipper, daily, have a point, website, pioneer, list, mention，such a great invention, in our daily lives, at that time
体验3. 小组比赛，看哪个小组能熟练复述本段对话。
Ⅲ.强化
巩固
1. 处理教材1a，1b，1c的内容。
(1) Look at the things below. Then number them [1—4] (1=first, 4=last).
答案: 4 2 1 3
(2) Listen and match the inventions with the years.
答案: d a c b
(3) Student B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then charge roles and practice again.
—When was the telephone invented?
—I think it was invented in 1876.
Things
Dates
computer
1971
TV
1927
car
1885
2.处理教材 2a，2b，2c的内容。
(1) Listen and number the inventions [1-3] in the order you hear them.
答案: 3 1 2
(2) Listen again and complete the chart below.
Invention
What is it/ are they used for?
shoes with special heels
change the style of the shoes
shoes with lights
seeing in the dark
hot ice-cream scoop
serving really cold ice-cream
(3)Make conversations using the information in 2b.
A: What are they used for?
B: They are used for…
3. 语言知识点的归纳整理
（1）the style of the shoes鞋的样式(教材第42页)
style n.“样式；款式”the style of “……的样式/风格”。
? The style of the skirt is just in season.这条裙子的款式正当时令。
? I wouldn’t tell lies to you. That’s not my style. 我不会跟你撒谎，那不是我的风格。
【拓展】常用短语
in style 意思为“流行的；时髦的”
out of style 意思为“过时的”
a life style 意思为“生活方式”
（2）Can you help me think of an invention?你能帮我想个发明吗？(教材第42页)
help sb. (to) do sth.帮助某人做某事
? Will you help me (to) choose myself a new coat?? 你能帮我选件新的外套吗？
help sb. with sth.
? I often help my mom with the housework. 我经常帮助妈妈做家务。
（3）Think about how often it is used in our daily lives.想想我们日常生活中使用拉链的次数。
how often多久，多常
此外，how often经常用来提问某动作或状态发生的频率。
daily life日常生活
? He?benefits?by?daily?exercises. 每天锻炼对他有好处。
（4）It mentioned that the zipper was invented by Whitcomb Judson in 1893.
这个网站提到拉链是在1893年由惠特科姆?贾德森发明的。
be invented by由……发明
mention v. 提到；说到
? Can you mention one of the mistakes?你能指出其中一个错误吗?
Ⅳ.实践
应用
1. 分小组进行采访活动，每组选出一名小记者，其余成员是被采访者，询问以下问题，最后汇总写成书面材料。
A. When was/were …invented?
B: It/They was/were invented in….
A: What are they used for?
B: It is/They are used for…
2. 书面表达。向老师或同学介绍所了解的几项发明。
例如：I want to introduce some inventions. The telephone was invented in 1876, cars were invented in 1885, the TV was invented in around 1927 and computers were invented in 1971. Can you tell us some other interesting inventions?
Ⅴ.总结
反馈
1.结合板书和课件，让学生盘点所学单词词组和目标语言。
单词：heel, scoop, electricity, style, project, pleasure, zipper, daily, have a point, website, pioneer, list, mention
词组：be used for, think of, have a point, become popular，shoes with special heels, shoes with lights, such a great invention, in our daily lives, at that time
目标语言：
When was the telephone invented? I think it was invented in 1876.
What are they used for? They’re used for…
2. 当堂练习。
（1）把下列句子改为被动语态。
① They made these computers in Shenzhen.
These computers_____ _____ in Shenzhen.
② She bought a new bike yesterday.
A new bike_____ ______ by her yesterday.
答案：① were made；② was bought
（2）单项选择。
① Last weekend, Jack _______ to a birthday party and he had a lot of fun. A. invite B. was invited C. invited D. is invited
② Last month a new law _____ in China to stop people from smoking in public places.
A. is passed?? ? B. passes?? C. had passed? D. was passed
答案：①B ②D
Ⅵ.作业
布置
Learn the new words by heart.
Review the passive voice we have learnt in Unit 5.
Preview the new words and expressions.
三、【板书设计】
Unit 6 When was it invented?
Section A （1a—2d）
A: I think … was invented before….
B: Well, I think … was invented after ….
A: When was the zipper invented?
B: It was invented in 1893.
A: Who was it invented by?
B: It was invented by Whitcomb Judson.
四、【教学反思】
本课时的话题是“发明”。介绍了我们日常生活中的一些物品的发明历史。如：电视、电话和拉链等，它们被发明的时间，被什么人发明及其作用等；从语言结构上，需要学习被动语态的过去时。在教学的过程中，应该在训练学生听说能力的基础上渗透过去式的被动语态这一语法项目。
1a-1c环节引导学生利用图片进行回答并且看图说话，这样有助于学生更好的理解记忆单词和句子结构。学生在回答问题的时候要用完整的句子，如：The telephone was invented in 1876.
2a-2c环节需要利用好课本的插图，在听力练习之前做好热身活动，引导学生利用图片进行看图识字，看图说话、看图预测听力内容等活动。在听力训练之后的听说训练中，尽可能交替使用主动语态和被动语态的提问，强化巩固学生对本单元语法的理解和运用。
2d环节侧重的是学生之间的合作学习，通过小组合作尽量让学生完成，老师适当引导。
九年级英语第6单元第2课时
Unit 6 When was it invented?
Section A （3a—3c）
一、【教材分析】
教
学
目
标
知识
目标
1.会听说读写下列单词：
accidental; by accident; nearly; ruler; boil; remain; smell(smelt/smelled, smelt/smelled); saint; national; trade; take place; doubt; without doubt.
2. 正确使用以下常用表达：
by accident; take place; without doubt; a Chinese ruler called…；fall into; some time; produce a nice smell; one of the world’s favorite drinks; the saint of tea; less than; in the 19th century; understand the nature of tea .
3. 学会使用以下句型：
（1）Did you know that tea, the most popular drink in the world, was invented by accident?
（2）It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink.
（3）One day Shen Nong was boiling drinking water over an open air.
（4）Some leaves from a tea plant fell into the water and remained there for some time.
（5）It produced a nice smell so he tasted the brown water.
（6）It was quite delicious, and so, one of the world’s favorite drinks was invented.
（7）The book describes how tea plants were grown and used to make tea.
（8）It also discusses where the finest tea leaves were produced and what kinds of water were used.
（9） It is believed that tea was brought to Korea and Japan during the 6th and the 7th centuries.
（10）The tea trade from China to Western countries took place in the 19th century.
（11）The Chinese are without doubt the ones who best understand the nature of tea.
能力
目标
1.阅读短文，按要求找到相应的信息。
2.通过阅读提高阅读能力。
3.了解茶叶被发明的历史及生产制作的简要过程。
情感
目标
培养想象力，善于观察事物。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。
教学重点
1.通过阅读了解茶叶的发明过程。
2.短语：by accident，take place，without doubt，all of a sudden的用法。
3.被动语态结构的变化。
教学难点
1.阅读短文，获得相关的信息的能力。
2.理解并运用所学的词汇及表达方式。
教学方法
情景教学法；任务型教学法。
二、【教学流程】
环节
师生活动
二次备课
I. 复习热身
1、检查生词预习
（1）先通过PPT呈现本课的单词，教师领读，学生跟读，教师帮助学生正音。
（2）做题巩固。根据首字母提示写出恰当的单词。
① The pleasant smell r________ after you have given roses to people.
② Tea was invented n__________ 5,000 years ago in China.
③ When I got home, my mother was b__________ drinking water over a fire.
④ I asked him and he gave me the reply without __________.
⑤ Yao Shun and Yu are believed as good r_________ in Chinese history.
答案：① remains ② nearly ③ boiling ④ doubt ⑤ rulers
2、自由交谈。通过“pair work”的形式练习下列对话。
—When was/were …invented?
—It was/were invented…
—Where was/were…invented?.
—…
—Who was/were…invented by?
—…

Ⅱ. 感知体验
感知1.观看“Chinese Tea”和“Tea tradition in China”两段视频，初步感知本文课题“An Accidental invention”。
T: How many kinds of tea does the video say? What are they? Do you know the tea tradition in China?
体验1. 小组成员之间讨论并理解“偶然发明”的含义。
感知2.PPT出示问题。
体验2.学生阅读文本，根据问题提示进行阅读。
（1）速读 (Fast Reading)
·Read the passage quickly and match each paragraph with its main idea.
Paragraph 1: Lu Yu and his book Cha Jing
Paragraph 2: How tea spread to other countries
Paragraph 3: How tea was invented by accident
（2） 精读 (Intensive Reading)
·Read the passage carefully and choose the right answers.
① What is the article about?
A. What tea is. B. Where tea comes from.
C. How tea was invented. D. How a cup of tea is made.
② Tea wasn’t invented by accident, was it?
A. Yes, it wasn’t. B. Yes, it did.
C. No, it wasn’t. D. Yes, it was.
③ When did tea appear in England?
A. Around 1660. B. Around 1670.
C. Around 1760. D. Around 1770.
④ Where was tea invented?
A. In China. B. In Singapore.
C. In England. D. We don’t know.
答案：① C ② D ③ A ④ A
·Read the passage again and answer the questions.
When was tea first drunk?
② How was tea invented?
③ Who is called “the saint of tea”?
④ What is Cha Jing about?
⑤ When was tea brought to other countries?
·Complete the sentences with the correct forms of the verbs in the box.
invent; drink; bring; produce; trade
①One of the world’s favorite dinks was_________ by accident.
② Tea was first________ by Shen Nong about 5000 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.
Ⅲ.强化巩固
1. 处理课本内容 3a部分。
Read the passage quickly and match each paragraph with its main idea.
Paragraph 1: Lu Yu and his book Cha Jing
Paragraph 2: How tea spread to other countries
Paragraph 3: How tea was invented by accident
2. 处理课本内容3b部分。
Read the passage carefully and find the answers to the questions.
答案:
① It was first drunk about 5,000 years ago.
② Some leaves from the tea plant fell into the boiling water. It produced a nice smell and tasted delicious. This is how tea was invented.
③ Lu Yu is called “ the saint of tea”.
④ It describes how tea plants were grown and used to make tea.
⑤ It was brought to Korea and Japan during the 6th and 7th centuries and to England around 1660.
3. 处理课本内容3c部分。
Complete the sentences with the correct forms of the verbs in the box.
答案：①invented ②drunk ③produced ④brought ⑤traded
4.语言知识点归纳总结。
（1）Did you know that tea, the most popular drink in the world (after water), was invented by accident? 你知道茶这种世界上最受欢迎的饮料(仅次于水)是偶然被发明的吗？
① 本句是一个复合句。主句是Did you know, that引导的是一个宾语从句，其中从句的主语是tea, 而the most popular drink in the world (after water), 是tea的同位语。
② by accident意为“偶然;意外地”。
? I knew his name by accident.我偶然知道了他的名字。
? He met Tom by accident.他偶然遇到了汤姆。
? The little girl knocked the glass by accident.小女孩不小心碰落了玻璃杯。
（2）It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink.据说是中国的一个名叫神农的统治者第一个发明茶作为饮品的。
It is believed that tea was brought to Korea and Japan during the 6th and 7th centuries.据报道茶是在6到7世纪之间被带入韩国和日本的。
“It is said that”是被动用法，意思是“据说，人们说”。类似用法：It is said/believed/supposed/reported that...（据说，据报道……）
? It is said that he is a brave boy.= People say that he is a brave boy.据说他是一个勇敢的孩子。
（3）In England tea didn’t appear until around 1660，but in less than 100 years，it had become the national drink.在英国，茶直到1660年才出现，但是在不到100年的时间里，它变成了民族的饮品。
not...until...直到……才……，表达的是一个肯定的意思。
? I didn’t go to bed until ten o’clock last night.我昨天晚上十点才睡觉。
（4）Some leaves from a tea plant fell into the water and remained there for some time.
一株茶树上的几片叶子落到水里并停留了一段时间。
① fall into意为“落人;掉入”。
如：He was drunk and fell into the water. 他喝醉了掉进河里去了。
fall asleep 入睡 fall down倒下；落下
fall in love with 与......相爱 fall over被......绰倒
fall off跌落；从......掉下来
② remain (to stay in the same place)此处用作不及物动词，意为“停留;逗留”。
? How long will you remain here?你要在此地停留多久？
remain 作连系动词，表示“仍然是（处于某种状态）；保持不变”，相当于keep。其后可接形容词、名词、分词或介词短语作表语。21教育名师原创作品
? It remained a secret. 它仍然是个秘密。
remain 作名词 意为剩余物，多用复数。
? The archeologists found some remains of the Song Dynasty. 考古学家发现了很多宋朝的遗留物。
（5）The tea trade from China to Western countries took place in the 19th century.从中国到西方国家的茶叶贸易出现在19世纪。
take place发生；出现
? Great?changes?have?taken?place?in?our?hometown?during?the
?past?ten?years.在过去的10年，我的家乡发生了巨大的变化。
注：happen作“发生、碰巧”解，一般用于偶然或突发性事件。happen?与take?place?通常都没有被动语态。
（6）Even though many people know about tea culture，the Chinese are without doubt the ones who best understand
the nature of tea.尽管很多人了解茶文化，但是中国人无疑是最了解茶文化的。
even though（=even if）从属连词，意为：“即使，即使……也……”，引导让步状语从句。Even if的从句中含有强烈的假定性，even though则多以从句之内容为前提。
? Even though he is poor, she loves him.即使他很穷，她也爱他。
? Even if I have to sell my house，I’ll keep my business.即使我卖掉房子，我还是要继续我的事业。
without doubt无疑地；必定；当然。通常还可表示为：no/beyond doubt，
? It is no doubt difficult.这无疑是困难的。
? No doubt he didn’t mean to hurt you.他肯定不是有意伤害你的。
? Without doubt this is the best.无可置疑，这是最好的。
? Beyond doubt he will give you some advice on your study.毫无疑问，他会给你的学习做一些指导的。
Ⅳ. 实践应用
书面表达。介绍茶是如何偶然发明的。
Did you know that tea, the most popular drink in?the world (after water), was invented by accident? It is said?that a Chinese?ruler called Shen Nong was the first to discover?tea as a drink. One day Shen Nong was boiling?water over an open fire. Some leaves from a tea?plant?fell into the water and?remained?there for?some time. It produced a nice smell so he tasted?the brown water. It was quite delicious, and so,?one of the world’s favorite drinks was invented.?
Ⅴ.总结反馈
1.结合板书和课件，让学生盘点所学单词词组和句型。
词汇：accidental; by accident; nearly; ruler; boil; remain; smell(smelt/smelled, smelt/smelled); saint; national; trade; take place; doubt; without doubt.
短语：by accident; take place; without doubt; a Chinese ruler called…；fall into; some time; produce a nice smell; one of the world’s favorite drinks; the saint of tea; less than; in the 19th century; understand the nature of tea .
（1）Did you know that tea, the most popular drink in the world, was invented by accident?
（2）It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink.
（3）Some leaves from a tea plant fell into the water and remained there for some time.
（5）It is believed that tea was brought to Korea and Japan during the 6th and the 7th centuries.
（6）The tea trade from China to Western countries took place in the 19th century.
（7）The Chinese are without doubt the ones who best understand the nature of tea.
2.当堂练习。翻译下列句子。
1. 直到1610年茶才被带到西方世界。
2. 这个机器是用来烧开水的。
3. 我已好久没见我奶奶，我十分想念她。
答案：
1. Tea wasn’t brought to the Western world until 1610.
2. This machine is used for boiling drinking water.
3. I haven’t seen my grandmother for some time. I miss her very much．
Ⅵ.作业布置
1. Learn the new words by heart.
2. Review the passage we have learnt today.
三、【板书设计】
Unit 6 When was it invented?
Section A （3a—3c）
Paragraph 1: How tea was invented by accident
Paragraph 2: Lu Yu and his book Cha Jing
Paragraph 3: How tea spread to other countries
四、【教学反思】
九年级英语第6单元第3课时
Unit 6 When was it invented?
Section A （Grammar Focus- 4c）
一、【教材分析】
教
学
目
标
知识
目标
1.会听说读写下列单词：
fridge; low; somebody; translate; lock; earthquake; sudden; all of a student; bell; biscuit; cookie; musical; instrument.
2. 正确使用语法要点中的句型：
（1）When was the zipper invented? It was invented in 1893.
（2）Who was it invented by? It was invented by Whitcomb Judson.
（3）When was tea brought to Korea? It was brought to Korea during the 6th and 7th centuries.
（4）What is the hot ice-cream scoop used for? It’s used for serving really cold ice-cream.
（5）Alexander Graham Bell invented the telephone in 1876.
（6）The telephone was invented by Alexander Graham in 1876.
能力
目标
进一步学习运用一般过去时态的被动语态；掌握主动语态变被动语态的方法，并通过不同方式的练习，来熟练运用。
情感
目标
培养想象力，善于观察事物。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。
教学重点
1.学习单词fridge, low, somebody, translate, lock, earthquake, sudden, all of a sudden, biscuit, cookie, instrument.
2.复习巩固Section A 部分所学的生词和词组。
教学难点
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。
教学方法
情景教学法；任务型教学法。
二、【教学流程】
环节
师生活动
二次备课
I. 复习热身
1、检查生词预习。
（1）先通过PPT呈现本课的单词，教师领读，学生跟读，教师帮助学生正音。
（2）做题巩固。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__________.
答案：①fridge ②low ③translated ④locked ⑤earthquake
2、自由交谈。通过“pair work”的形式练习下列对话。
When was it invented? It was invented …
Where was it invented? It was invented …
Who was it invented by? It was invented by…

Ⅱ. 感知体验
感知1. 用PPT呈现下列被动语态的句型，感知被动语态的结构。
·The pioneers of different inventions were listed there.
·It mentioned that the zipper was invented by Whitcomb Judson in1893.
·The book describes how tea plants were grown and used to make tea.
·It was believed that tea was brought to Korea and Japan during the 6th and 7th centuries.
体验1.分小组探讨过去时的被动语态的构成。
感知2. PPT出示课本“Grammar Focus”中的对话。
·When was the zipper invented? It was invented in 1893.
·Who was it invented by? It was invented by Whitcomb Judson.
·When was tea brought to Korea? It was brought to Korea during the 6th and 7th centuries.
·What is the hot ice-cream scoop used for? It’s used for severing really cold ice-cream.
体验2.一般过去时被动语态
（1）一般过去时被动语态表示过去经常性、习惯性被动动作或过去某一时刻发生的被动性动作，与主动语态相比,被动语态中主语是谓语动作的执行者。
被动语态的构成：was (were) + done
（2）主动语态变被动语态的步骤：
①主动语态的宾语变为被动语态的主语；
②主动句的谓语动词变为被动结构；
③主动句的主语变为被动句的宾语，由by引出，当不强调动作的执行者时，常省略。
④其它成分不变。
E.g.: Bell invented the telephone in 1876.
The telephone was invented by Bell in 1876.
Ⅲ.强化巩固
1. 处理课本内容4a部分。
Rewrite the sentences using the passive voice.
（1）They sold the fridge at a low price.
The fridge was sold at a low price.
（2）Somebody stole my camera from my hotel room.
My camera was stolen from my hotel room.
（3）Where did you take these photos?
Where were these photos taken?
（4）Our parents advised us not to go out alone.
We were advised not to go out alone by our parents.
（5）Different writers translated the book into different languages.
The book was translated into different languages by different writers.
2. 处理课本内容4b部分。
Complete the sentences with the correct forms of the verbs in the box.
eat like invite tell lock ring break bring
（1）You __________ to the party last night, weren’t you? Why didn’t you go?
（2） The earthquake happened all of a sudden, but luckily the villagers ___________to a safe place.
（3）The door___________ when we arrived, so we _________the bell.
（4）The students ____________not to eat or drink in class, but Ruby___________ the rule when she started eating a biscuit in science class.
（5） The cookies____________ by the hungry kids in less than 20 minutes, and they really ___________ them.
答案:（1）were invited （2）were brought （3）was locked ,rang （4）were told, broke （5）were eaten, liked
3. 处理课本内容4c部分。
Decide whether active or passive forms should be used in these sentences.
The telephone____________ (invent) by Alexander Graham Bell. He__________ (born) in 1847. Mr. Bell_________ (work) on the invention of the telephone with Thomas Watson. In 1875, Mr. Bell _________ (learn) how to send musical notes through an instrument similar to a telephone. Finally, the telephone___________ (invent) in 1876. The first sentence that_____________ (say) on the telephone by Mr. Bell was “Mr. Watson, come here; I want to see you.” Today the telephone____________ (use) around the world.
Answers: was invented; was born; worked; learned; was invented ;said; is used
4.语言知识点的归纳总结。
（1）They sold the fridge at a low price. 他们以低价出售这台冰箱。
low形容词，意为“低的；矮的”，常用短语 at a low price 意为“以低价”。
? She jumped over the low wall. 她跳过了那堵矮墙。
? This sweater is on sale at a low price. 这件毛衣正以低价出售。
（2）Somebody stole my camera from my hotel room. 有人从我的宾馆房间里偷走了照相机。
somebody不定代词，意为“某人；重要人物”，用于肯定句中。作主语时谓语动词用单数形式，其同义词为someone。
? There is somebody waiting to see you.
有人在等着见你。
anybody不定代词，意为“有人”，常用于否定句和疑问句中；用于肯定句中意为“任何人”。
? Is there anybody who can help me? 有人能帮我吗？
? Anybody can do the work well. 任何人都能把这项工作做好。
（3）Different writers translated the book into different languages.不同的作家把这本书翻译成不同的语言。
translate 动词，意思为“翻译”，常用于translate…into…结构中，表示“把……翻译成……”。
? These poems don’t translate easily.这些诗不好翻译。
? They translated his books into several languages.他们把他的书翻译成了好几种语言。
（4）The earthquake happened all of a sudden, but luckily the villagers were brought to a safe place. 地震突然发生了，但是幸运的是村民们被带到了安全的地方。
all of a sudden 意思为“突然；猛地”。
? All of a sudden, the lights went out.突然；灯都灭了。
? The boy began crying all of a sudden.那个男孩突然开始哭起来。
【拓展】suddenly 副词 意思为“突然”
? In a few minutes, Tom suddenly came to life.一小会儿后汤突然苏醒过来。
Ⅳ. 实践应用
分小组练习主动语态和被动语态的转换。
A: They sold the fridge at a low price.
B: The fridge was sold at a low price.
C: Somebody stole my camera from my hotel room.
D: My camera was stolen from my hotel room.
A: Where did you take these photos?
B: Where were these photos taken?
C: Our parents advised us not to go out alone.
D: We were advised not to go out alone by our parents.
E: Different writers translated the book into different languages.
F: The book was translated into different languages by different writers.
Ⅴ.总结反馈
1.结合板书和课件，让学生盘点所学词汇和句型。
词汇：fridge; low; somebody; translate; lock; earthquake; sudden; all of a student; bell; biscuit; cookie; musical; instrument
句型：
（1）When was the zipper invented? It was invented in 1893.
（2）Who was it invented by? It was invented by Whitcomb Judson.
（3）When was tea brought to Korea? It was brought to Korea during the 6th and 7th centuries.
（4）What is the hot ice-cream scoop used for? It’s used for serving really cold ice-cream.
（5）Alexander Graham Bell invented the telephone in 1876.
（6）The telephone was invented by Alexander Graham in 1876.
2. 当堂练习。将下列各句改为被动语态。
（1）They planted the trees ten years ago.
The trees __________ __________ ten years ago.
（2）The terrible storm broke the windows of the houses in this area last night.
The windows of the houses in this area _________ _________ by the terrible storm last night.
（3）Mo Yan wrote the book three years ago.
The book __________ __________ __________ Mo Yan three years ago.
（4）The two boys ate the biscuits just now.
The biscuits __________ _________ by the two boys just now.
（5）When did they bring the pieces of clay to Western countries?
When __________ the pieces of clay _________ to the Western countries?
答案：（1）were planted（2）were broken（3）was written by（4）were eaten（5）were; brought
Ⅵ.作业布置
1. Review passive voice we have learnt today.
2. Preview the new words we will use in the next lesson.
三、【板书设计】
Unit 6 When was it invented?
Section A （Grammar Focus- 4c）
A: They sold the fridge at a low price.
B: The fridge was sold at a low price.
A: Somebody stole my camera from my hotel room.
B: My camera was stolen from my hotel room.
四、【教学反思】
九年级英语第6单元第4课时
Unit 6 When was it invented?
Section B （1a—1d）
一、【教材分析】
教
学
目
标
知识
目标
1.会听说读写下列词汇：crispy; salty; sour; by mistake; customer；by mistake; thin enough; salty enough; make the customer happy; in the end; potato chips.
2. 能正确使用语法要点中的句型：
（1）Potato chips were invented by mistake.
（2）The customer thought the potatoes thin enough.
（3）The customer said they were not salty enough.
（4）George wanted to make the customer happy.
（5）The customer was happy in the end.
能力
目标
1. To understand and describe how food can taste.
2. To learn the history of potato chips by listening carefully.
3. To practice talking about the invention of potato chips.
情感
目标
通过本课的学习，培养学生乐于探索，乐于创新和发明的精神。
教学重点
理解并讨论薯条的发明。
教学难点
熟练运用语法要点中的句型和他人对话；一般过去式被动语态的用法。
教学方法
情景教学法；任务型教学法。
二、【教学流程】
环节
师生活动
二次备课
I. 复习热身
1、检查生词预习。
（1）先通过PPT呈现本课的单词，教师领读，学生跟读，教师帮助学生正音。
（2）做题巩固。根据句意及首字母提示完成单词。
①The glass is very c_________. You should be careful.
②The soup is very s_________. You shouldn’t put so much salt into it.
③The oranges are not sweet at all, instead, they are kind of s_________.
④He put salt in her cup of tea by m_________.
⑤His brother is a good cook, many c_________ go there to enjoy his cooking.
答案：（1）crispy（2）salty（3）sour（4）mistake（5）customers
2、自由交谈
Which food do you like? I like…
Do you like eating potato chips? Yes, I do/No, I Don’t.
Do you know how they were invented? ….

Ⅱ. 感知体验
感知1.用PPT呈现不同食物的图片,引导学生谈论它们的味道。
T: What kind of food, fruit and drink do you like best? Can you describe the tastes of them?
体验1.学生分组谈论，练习对话，并学习新单词crispy; salty; sour等。
感知2.教师进一步通过问题启发。
（1）Do you like eating potato chips?
（2）Which kind of taste do you like?
（3）Do you know how they were invented?
体验2.小组讨论得出答案并做听力练习。
Ⅲ.强化巩固
1. 处理课本内容1a部分。
The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.
sweet crispy salty sour
crispy sour sweet salty
2. 处理课本内容1b部分。
Write the name of a different food after each word.
sweet banana apple orange cake…
crispy potato chips …
salty pizza …
sour lemon grape…
3. 处理课本内容1c部分。
Listen and circle T for true or F for false.
（1）Potato chips were invented by mistake. T F
（2）They were invented in 1863. T F
（3）The customer thought the potatoes were not thin enough. T F
（4）The customer said they were not salty enough. T F
（5）George wanted to make the customer happy. T F
（6）The customer was happy in the end. T F
4. 处理课本内容1d部分。
Listen again. Complete the sentences.
The History of Potato Chips
Do you know how potato chips were invented? Potato chips _______by a cook called George Crum. They were invented in _______.George Crum cut the potatoes really, really _______and then cooked them for a long time until they were _______. Finally he put lots of salt on them so they were _______.
答案: were invented; 1853; thin; crispy; really salty
5处理课本内容1e部分。
Make a conversation about the invention of potato chips. Use the information in 1c and 1d.
A: Did you know potato chips were invented by mistake?
B: Wow, I didn’t know that. Who invented them?
A: ….
6. 语言知识点的归纳总结。
（1）salty咸的(教材第45页) salty 形容词，意思为“咸的；含盐的”，是由名词“盐，食盐”加-y构成的形容词。
? The boy didn’t have much for dinner because the dishes were too salty.
这个男孩晚餐吃得不多，因为菜太咸了。
【拓展】“名词+-y”构成形容词:在英语中，很多名词后加-y可以构成形容词，如：
cloud—cloudy wind—windy rain—rainy sleep—sleepy sun—sunny
（2）The customer was happy in the end.最后顾客高兴了。
in the end 意思为“最后；最终”，相当于“at last”, finally,其后不接of短语。夲短语强调虽然最初……，最后还是产生了一个……的结果。
? They were out of danger in the end.他们最后脱险了。
【拓展】at the end of… 在……结束时，后接表示时间的名词；在……尽头，后接表示地点的名词。by the end of… 在……以前，到……为止，常用于将来时态和过去完成时态的句子中。
（3）The potato chips were invented by mistake.薯片是无意中被发明出来的。
by mistake意为“错误地, 无意中”，常置于句末。
? I’m sorry that I took your schoolbag by mistake.很抱歉我错拿了你的书包。
【拓展】mistake为名词时，还可构成短语：make a mistake （犯错误）
mistake为动词时，常用于mistake…for… （把……误认为……）
? I mistook Kate for her sister when I met her yesterday
Ⅳ. 实践应用
1. 小组练习关于薯条发明的对话.
A: Did you know potato chips were invented by mistake?
B: Wow, I didn’t know that. Who invented them?
A: ….
2. 写一篇关于薯条发明的小文章。例如：
Potato chips were invented by a cook called George Crum. They were invented in 1853.George Crum cut the potatoes really, really thin and then cooked them for a long time until they were crispy. Finally he put lots of salt on them so they were really salty.
Ⅴ.总结反馈
1.结合板书和课件，让学生盘点所学词汇和重要句型。
单词：crispy; salty; sour; by mistake; customer.
短语：by mistake; thin enough; salty enough; make the customer happy; in the end; potato chips.
句型：
（1）Potato chips were invented by mistake.
（2）The customer thought the potatoes thin enough.
（3）The customer said they were not salty enough.
（4）George wanted to make the customer happy.
（5）The customer was happy in the end.
2. 当堂练习。
（1）根据句意和首字母提示补全单词。
①There were four famous inventions in a______ China.
②These cars were p_______ by the same company.
③Few pears r________ on the trees after the heavy rain.
④I don’t like the t_____ of the meat.
答案：① ancient ② produced ③ remained ④ taste
（2）单项填空
① — “Frog”, Mo Yan’s latest novel, please!
— Sorry, it ____ just now. But it will come out again soon.
A. sold out B. is sold out C. has sold out D. was sold out
② It ____ last week that the haze(雾霾) in Beijing caused many problems.
A. reports B. reported C. is reported D. was reported
答案：① D ② D
Ⅵ.作业布置
1. Write a short passage about the history of your favorite food.
2. Preview the new words we will use in the next lesson.
三、【板书设计】
Unit 6 When was it invented?
Section B （1a—1d）
A: Did you know potato chips were invented by mistake?
B: Wow, I didn’t know that. Who invented them?
A: They were invented by a cook called George Grum.
B: When was that?
A: Oh, it was in 1853.
四、【教学反思】
九年级英语第6单元第5课时
Unit 6 When was it invented?
Section B （2a—2e）
一、【教材分析】
教
学
目
标
知识
目标
1. 会听说读写下列单词：
the Olympics; Canadian; divide; divide … into; basket; popularity; not only…but also; look up to; hero; professional; divide … into; not only…but also; look up to; stop…from…; become popular in China; the number of; encourage sb. to do sth; achieve one’s dreams
2.会使用以下句型：
（1）Basketball is a much-loved and active sport that is enjoyed by many for fun and exercise.
（2）It is over 100 years old and is played by more than 100 million people in over 200 countries.
（3）Basketball was invented by a Canadian doctor named James Naismith, who was born in 1863.
（4）Dr. Naismith divided the men in his class into two teams and taught them to play his new game.
（5）Today, the popularity of basketball has risen around the world…
（6）Basketball has not only become a popular sport to play, but it has also become a popular sport to watch.
（7）The number of foreign players, including Chinese players, in the NBA has increased.
（8）Many young people look up to these basketball heroes and want to become like them.
（9）These stars encourage young people to work hard to achieve their dreams.
能力
目标
通过阅读训练，提高阅读理解能力，在理解故事情节的基础上对文章进行进一步的解读。
情感
目标
更多地了解了篮球运动的历史，从而更好地爱好运动。
教学重点
1.通过阅读了解篮球的发明历史。
2. 重点词汇、常用表达及句型。
3.被动语态结构的变化。
教学难点
一般过去式被动语态的用法；阅读技巧的学习。
教学方法
情景教学法；任务型教学法。
二、【教学流程】
环节
师生活动
二次备课
I. 复习热身
1、检查生词预习
根据句意及词首字母提示完成单词。
（1）The Chinese players did well in the O__________ in London.
（2）She sent us a b__________ of flowers!
（3）Her grandfather is a h___________ who fought bravely against the enemies.
（4）Zhang Jike is my favorite p___________ ping pong player.
（5）They were d________ into two groups to play soccer by the PE teacher.
答案：（1）Olympics（2）basket（3）hero（4）professional（5）divided
2、自由交谈
Make conversations to talk about something about basketball.
Discuss the basketball sport with their partners and share the ideas with the class.
—Do you like basketball? —Yes, I do.
—Do you watch basketball games? —…
—How much do you know about this sport?
—…

Ⅱ. 感知体验
感知1. 观看关于篮球明星的视频，感知关于篮球的知识。
体验1. Read and match the main idea.
Para.1 How basketball was invented
Para.2 The popularity of basketball
Para.3 Introduction to basketball
感知2. 观看关于篮球历史的视频。
体验2. 分组讨论下列问题。
（1）Who invented basketball?
（2）Where is basketball played?
（3）How is basketball played?
感知3. 图片展示篮球的发展和流行。
体验3. 讨论篮球的发展和流行。
Ⅲ.强化巩固
1. 处理课本内容2c部分。
Complete the mind map with the information in the passage.
Game:
·played inside on a hard floor
·two teams
·get the ball into other team’s basket
Development:
·invented by James Naismith
·first game on December 21,1891
·became Olympic event in Berlin in the year 1936
·most famous games: NBA CBA
·popular games in China: CBA
Popularity:
·played by more than 100 million people
·over 200 countries
2. 处理课本内容2d部分。
Use the mind map to summarize what you and your partner remember about the development of basketball. Use the following questions to help you.
（1）Who invented basketball and how is it played?
（2）When was the first basketball game in history played?
（3）Why were the Berlin Olympics important for basketball?
（4）What are the professional basketball groups in America and China?
（5）How popular is basketball?
答案:
（1）James Naismith; played inside on a hard floor, divided into two teams, get the ball into other team’s basket.
（2）On December 21,1891
（3）It became an event at the Olympics.
（4）NBA CBA
（5）It is played by more than 100 million people over 200 countries.
3. 语言知识点的归纳总结。
（1） divide…into 分成若干较小的部分
? The house was divided into flats.这房子被分成了好几个公寓。
（2）separate … from 使分开，隔开
? England is separated from France by the Channel.英法两个国家被海峡分开。
（3）invent发明
? Bell invented the telephone.贝尔发明了电话。
（4） discover 发现
例如：Who discovered America ?谁发现了美国？
（5）It is believed被认为，据说。
? It is believed that on December 21st ,1891. the first basketball game in history was played. 据说在1891年12月21日，历史上第一次篮球比赛举行。
（6）It is over 100 years old and is played by more than 100 million people in over 200 countries.
篮球运动有100多年的历史了，有200多个国家的一亿多人打篮球。（教材第46页）
over介词，意思为“多余；超过”，相当于“more than”，说明数目和程度。
? There are over/more than four hundred students in our school.我们学校有400多名学生。
【拓展】1) 表示“在……之上”，垂直且不接触，反义词为under。
? The light is over the table.灯在桌子的上方。
2) 表示“在……期间；在……时间内”。
? I have done some interesting things over the three years. 这三年来我做了一些有趣的事情。
3)表示“穿越”，只从某物的上方越过。
? There is a bridge over the river.河上有座桥。
4) 表示“到处；各处”。
? We’ll travel all over the world.我们将周游世界。
（7）These stars encourage young people to work hard to achieve their dreams.
这些明星里激励着年轻人为实现他们的梦想而努力学习。(教材第46页)
encourage sb. to do sth. 鼓励某人做某事
? The teacher often encourages us to study hard.老师经常鼓励我们要努力学习。
Ⅳ. 实践应用
1.小组谈论下列问题。
What do you think of famous basketball players?
?
Good things
Difficult things
famous basketball
players
?
?
2. 写一篇关于篮球历史的文章。
For example:
Do you know how basketball was invented? It was invented by James Naismith. It was played inside on a hard floor. Divide the men into two teams; players on the same team must work together to get the ball in the other team’s basket, they stop the competing team from getting the ball into their own basket.
Ⅴ.总结反馈
1.结合板书和课件，让学生盘点所学词汇和句型。
词汇：
the Olympics; Canadian; divide; divide … into; basket; popularity; not only…but also; look up to; hero; professional;
divide … into; not only…but also; look up to; stop…from…; become popular in China; the number of; encourage sb. to do sth; achieve one’s dreams.
（1）Basketball is a much-loved and active sport that is enjoyed by many for fun and exercise.
（2）It is over 100 years old and is played by more than 100 million people in over 200 countries.
（3）Basketball was invented by a Canadian doctor named James Naismith, who was born in 1863.
（4）Dr. Naismith divided the men in his class into two teams and taught them to play his new game.
（5）Today, the popularity of basketball has risen around the world.
（6）Basketball has not only become a popular sport to play, but it has also become a popular sport to watch.
（7）The number of foreign players, including Chinese players, in the NBA has increased.
（8）Many young people look up to these basketball heroes and want to become like them.
（9）These stars encourage young people to work hard to achieve their dreams.
2.当堂练习。
根据所给汉语提示完成下列句子。
（1） 已经确认历史上第一场篮球赛是在1891年12月21举办的。
It ________ ________ that on December 21st, 1891, the first basketball game in history ________ ________.
（2）许多年轻人都梦想着成为像姚明那样的著名的篮球运动员.
Many young people ________ ________ ________ famous basketball players like Yao Ming.
（3）在两百多个国家, 超过一亿人打篮球, 其中包括中国。
Basketball is played ________ more than 100 million people in over 200 countries, ________ ________.
（4） 1936年在柏林, 篮球成为奥运会的一项赛事.
Basketball became one of the ________ ________ in 1936 in Berlin.
（5）英语老师把我们分成四个小组。
Our English teacher__________ the class___________ four groups.
答案：（1）is believed; was played（2）dream of becoming（3）by; including China（4）Olympic event（5）divided; into
Ⅵ.作业布置
1. Read the passage again and find the important sentences.
2. Learn more about basketball from internet.
三、【板书设计】
Unit 6 When was it invented ?
Section B （2a—2e）
the Olympics; Canadian; divide; divide … into; basket; popularity; not only…but also; look up to; hero; professional;
divide … into; not only…but also; look up to; stop…from…; become popular in China; the number of; encourage sb. to do sth; achieve one’s dreams
四、【教学反思】

九年级英语第6单元第6课时
Unit 6 When was it invented?
Section B （3a—Self Check）
一、【教材分析】
教
学
目
标
知识
目标
1. 复习常用词汇及表达：
be used for, think of, have a point, become popular; shoes with special heels, shoes with lights, such a great invention, in our daily lives, at that time; by accident; take place; without doubt; a Chinese ruler called…；fall into; some time; produce a nice smell; one of the world’s favorite drinks; the saint of tea; less than; by mistake; thin enough; salty enough; make the customer happy; in the end; potato chips; divide … into; not only…but also; look up to; stop…from…; become popular in China; the number of; encourage sb. to do sth; achieve one’s dreams
2.复习常用句型表达：
（1）—When was the telephone invented? —I think it was invented in 1876.
（2）—What are they used for? — They’re used for….
（3）Did you know that tea, the most popular drink in the world, was invented by accident?
（4）It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink.
（5）Some leaves from a tea plant fell into the water and remained there for some time.
（6）It also discusses where the finest tea leaves were produced and what kinds of water were used.（7）The tea trade from China to Western countries took place in the 19th century.
（8）The telephone was invented by Alexander Graham in 1876.
（9）Potato chips were invented by mistake.
（10）The customer said they were not salty enough.
（11）George wanted to make the customer happy.
（12）The customer was happy in the end.
（13）Basketball is a much-loved and active sport that is enjoyed by many for fun and exercise.
（14）It is over 100 years old and is played by more than 100 million people in over 200 countries.
（15）Basketball was invented by a Canadian doctor named James Naismith, who was born in 1863.
（16） Dr. Naismith divided the men in his class into two teams and taught them to play his new game.
能力
目标
熟练运用本单元句型进行会话和写作。
情感
目标
养成热爱科学、勇于探索以及不畏艰难的精神。
教学重点
谈论不同的发明，并尝试发明新事物。
教学难点
运用本单元句型进行会话和写作。
教学方法
情景教学法；任务型教学法。
二、【教学流程】
环节
师生活动
二次备课
I. 复习热身
1、检查单词复习
用所给单词的适当形式填空。
（1）Ten eggs __________ (use) to make the big cake by my mother.
（2）The boys __________ (ask) not to shout in the hallway.
（3）When did they invent the __________ (person) computer?
（4）Thomas Edison was a great ___________ (invent) in history.
（5）Some inventions can also lead to other inventions all of a _________ (suddenly).
答案：（1）were used（2）were asked（3）personal（4）inventor（5）sudden
2、自由交谈
Talk about different inventions and make up the conversations.
When was/were…invented?
It was/were invented…

Ⅱ. 感知体验
感知1. 用多媒体展示各种不同的新发明，启发学生思考日常生活中不喜欢的事物，引导学生尝试探索新的发明。
Problem: quickly taking notes in class.
New invention: a special pen.
What it is used for: taking notes for me. It can take notes automatically.
体验1.分组讨论其他新发明。
Ⅲ.强化巩固
1. 处理课本内容Self check 1部分:
Complete the passage with the correct forms of words in the box.
invent doubt mention website all of a sudden
It is often difficult to decide on the inventor of certain inventions. This is because sometimes a few people may _____things which are nearly the same. It’s hard to tell who came up with the idea first. Some inventions can also lead to other inventions______. So some people _____whether the inventor came up with the idea himself or herself. They think that the inventor used someone else’s idea to create his or her invention. That is why books or _____usually_____more than one inventor when giving information about inventions.
答案:invent; all of a sudden; doubted; websites; mentioned
2. 处理课本内容Self check2部分:
Rewrite these sentences using the passive voice.
1. Someone stole my watch.
My watch was stolen by someone.
2. They used five eggs to make this big cake.
Five eggs were used to make this big cake.
3. When did they invent the personal computer?
When was the personal computer invented?
4. They asked us not to run in the hallway.
We were asked not to run in the hallway.
5. Someone took the video back to the store.
The video was taken back to the store by someone.
Ⅳ. 实践应用
写一篇关于发明的文章。
例如:
This special pen was invented by Liu Jie. It has three colors and is used for taking notes quickly. It is very useful if you have a lot to write down. The pen comes with a microchip that can store a list of common words that you will use. You can program the words you will use often into the microchip’s memory, then assign a short form to each word. When you are writing, you just need to write the short forms with the pen, press a button on the pen and all the short forms will change into the actual words. The microchip can contain up to 50 words and you can make changes to the list of words whenever you need to.
Ⅴ.总结反馈
1. 复习常用词汇：
be used for, think of, have a point, become popular; shoes with special heels, shoes with lights, such a great invention, in our daily lives, at that time; by accident; take place; without doubt; a Chinese ruler called…；fall into; some time; produce a nice smell; one of the world’s favorite drinks; the saint of tea; less than; by mistake; thin enough; salty enough; make the customer happy; in the end; potato chips; divide … into; not only…but also; look up to; stop…from…; become popular in China; the number of; encourage sb. to do sth; achieve one’s dreams.
2.复习常用句型表达：
（1）—When was the telephone invented? —I think it was invented in 1876.
（2）—What are they used for? — They’re used for….
（3）Did you know that tea, the most popular drink in the world, was invented by accident?
（4）It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink.
（5）Some leaves from a tea plant fell into the water and remained there for some time.
（6）It also discusses where the finest tea leaves were produced and what kinds of water were used.
（7）The tea trade from China to Western countries took place in the 19th century.
（8）The telephone was invented by Alexander Graham in 1876.
（9）Potato chips were invented by mistake.
（10）The customer said they were not salty enough.
（11）George wanted to make the customer happy.
（12）The customer was happy in the end.
（13）Basketball is a much-loved and active sport that is enjoyed by many for fun and exercise.
（14）It is over 100 years old and is played by more than 100 million people in over 200 countries.
（15）Basketball was invented by a Canadian doctor named James Naismith, who was born in 1863.
（16） Dr. Naismith divided the men in his class into two teams and taught them to play his new game.
Ⅵ.作业布置
1. Revise?your composition.
2. Preview the new words and expressions in Unit 7.
三、【板书设计】
Unit 6 When was it invented?
Section B （3a—Self Check）
—When was the telephone invented? —I think it was invented in 1876.
—What are they used for? — They’re used for….
It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink.
四、【教学反思】