When was it invented?教案及教学设计

小编在上几篇就写了初三英语《When was it invented?》的ppt课件，今天小编为大家整理了《When was it invented?》的教学设计，下文供大家参考。

《When was it invented?》教学设计

一、教学目标：

1. 语言知识目标：

1) 能掌握以下单词： heel, scoop, electricity, style, project, pleasure, zipper, daily, website, pioneer, list, mention

能掌握以下句型：

① —When was the telephone invented?

—I think it was invented in 1876.

② —What are they used for?

—They are used for seeing at night.

2) 能谈论物品被发明的时间、发明者，表达某发明的用途。

2. 情感态度价值观目标：

了解一些近现代发明的时间及用途，激发自己热爱发明的情感。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。

二、教学重难点

1. 教学重点：

1) 本课时的单词、词组和句型，学习运用一般过去时态的被动语态。

2) 学会询问发明时间及用途的基本句型：

—When was the telephone invented?

—I think it was invented in 1876.

—What are they used for?

—They are used for seeing at night.

2. 教学难点：

运用一般过去时态的被动语态来讨论发明的发明时间及用途。

三、教学过程

I. Warming up

1. 展示一些近代发明的图片与近代发明的发明者，让学生们将图片与发明者相连。

T: Do you know what these inventions are?

S1: It’s a car.

S2: It’s a telephone.

S3: It’s a television.

T: Do you know who these inventors are?

S1: Karl Benz

S2: Alexander Bell

S3: J. L. Baird

Let Ss match the inventions and the inventors.

Ⅱ. Presentation

引导学生们学习一般过去时态的被动语态结构。

让学生们看大屏幕的如果爱和发明者的图片,并将句子改为被动语态。

如：

T: Karl Benz invented the first car in 1885.

The first car was invented (by Karl Benz) in 1885.

Ⅲ. Talking

1. Look at the pictures in 1a. Discuss with your group, in what order do you think they were invented? Try to number them [1-4].

2. Ss discuss with their partners and number the pictures.

3. Talking about the inventions:

A: I think the TV was invented before the car.

B: Well, I think the TV was invented after the TV.

Ⅳ. Listening (1b)

1. T: Tell Ss look at the pictures and years on the left.

2. Play the recording for the Ss to listen.

3. Ss listen to the conversation and try to match the invention with the proper year.

4. Play the recording again.

5. Check the answers.

Ⅴ. Pair work (1c)

1. Ss try to remember the invention and the year.

2. Student B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles and practice again.

3. Let some pairs ask and answer in pairs.

e.g. A: When was the telephone invented?

B: I think it was invented in 1876.

…

Ⅵ. Learning the new words & Listening

Look at the pictures then learn the new words.

Work on 2a:

T: Tell Ss they will hear some interesting inventions.

1. Look at the pictures in 2a. Discuss the things what they are used for.

2. Play the recording for the Ss to listen and number the pictures.

3. Play the recording again to check the answers.

Work on 2b:

1. Let Ss read the chart below. Explain some main sentences for the Ss. Make sure they know what to do.

2. Play the recording for the Ss to fill in the blanks.

3. Play the recording again to check the answers.

4. Listen again and fill in the blanks.

Ⅶ. Pair work (2c)

1. Tell Ss to make conversations using the information in 2b. Make a model for the Ss.

A: What are the shoes with special heels used for?

B: They are used for changing the style of the shoes.

2. Let some Ss make conversations using the information in 2b.

3. See which group does the best.

Ⅷ. Role-play(2d)

1. Read the conversations and Let Ss read after the teacher.

2. Explain some new words and main points in the conversation.

3. Ask Ss to role-play the conversation in groups.

X. Language points

1. Well, you do seem to have a point…

have a point 有道理

e.g. I admit (that) you have a point. 我承认你有理。

2. They are used for seeing in the dark.

be used for doing sth.表示“被用来 做某事”。 相当于be used to do sth.

e.g. This computer is used to control all the machines.

这台电脑是用来控制所有机器的。

Do you know what this tool is used for?

你知道这工具是用于做什么的?

3. Think about how often it’s used in our daily lives.

think about 表示“考虑，想起”

e.g. He is thinking about travelling in the summer holidays.

他正在考虑暑假旅游的事。

She was thinking about her childhood days.

她正回想她的童年时期。

【拓展有关think 其它的短语】

think of 指“考虑，记忆，记起”

如：You think of everything! 你全都提到了。

I can’t think of his name at the moment. 我一时想不起他的名字。

think sth. over指“仔细想，审慎思考，作进一步考虑”

如：Please think over what I said.请仔细考虑我说的话。

I want to think it over. 我想仔细考虑一下这件事。

think sth. out 指“想通，想出，熟思”

如：He thought out a new idea. 他想出了一个新主意。

That wants thinking out. 那件事需要仔细考虑。

Homework

Recite the conversation in 2d.

Section A 2 (3a-3c)

一、教学目标：

1. 语言知识目标：

1) 学习掌握下列词汇：by accident, ruler, boil, remain, smell, saint, national,

take place, doubt, without doubt

2)阅读短文，能按要求找到相应的信息。

3)通过阅读提高学生们的阅读能力。

4) 了解茶叶被发明的历史及生产制作的简要过程。

2. 情感态度价值观目标：

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。

二、教学重难点

1. 教学重点：

1) 掌握本部分出现的生词和词组，达到熟练运用的目标。

2) 阅读短文，获得相关的信息。通过阅读练习，来提高阅读能力。

2. 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。

三、教学过程

Ⅰ. Revision

1. Check the homework.

2. Role-play the conversation in 2d.

Ⅱ. Lead-in

一、播放视频《茶叶的起源》，让学生们了解中国的茶文化，及茶叶被发明的渊源，并了解其发展过程。

1. What is the video about?

2. Who is the writer of Cha Jing?

Ss try to answer the questions:

It’s about the tea.

Lu Yu.

Ⅲ. Reading

Work on 3a:

1. Tell Ss to read the article quickly and match each paragraph with its main idea.

Lu Yu and his book Cha Jing

How tea spread to other countries

How tea was invented by accident

Para. 1

Para. 2

Para. 3

Ss read the article quickly and match each paragraph with its main idea.

2. 方法指导：先阅读所给的三句话，然后快速阅读短文，抓住每一段的主题句，找到答案。

3. 学生们，按老师指导的方法进行阅读，并快速阅读三个段落。

4. 最后，教师让部分学生回答答案，并校对答案。

Para. 1 How tea was invented by accident

Para. 2 Lu Yu and his book Cha Jing

Para. 3 How tea spread to other countries

Work on 3b:

1. 告诉学生们再次阅读短文内容，并回答3b中的所有问题。

2. 学生们先阅读这些问题，理解它们的意思，然后带着相关问题仔细回读短文，并在短文的相关信息处划线。

3. 让学生们回答问题，并校对答案。

① It was first drunk nearly 5, 000 years ago.

② It was invented by accident.

③ Lu Yu.

④ It’s about how tea plants were grown and used to make tea.

⑤ It is believed tea was brought to Korea and Japan during the 6th and 7th centuries. Tea didn’t appear until around 1660 in England.

4. 让学生读一下自己的答案，并改正答案。

Ⅳ. Post reading

Read and fill the blanks.

Fill the blanks according to the first paragraph.

Tea (after water), the most popular drink in the world _______ (invent) by accident. It is believed that tea _______ (drink) 5,000 years ago. It ______ (say) that a Chinese ruler ______ (call) Shen Nong was the first ______ (discover) tea as a drink. One day Shen Nong _______ (boil) drinking water over an open fire. Some leaves from a tea plant ____ (fall) into the water and remained there for some time. It ________ (produce) a nice smell so he ______ (taste) the brown water. It was quite delicious, and so, one of the world’s favorite drinks _________ (invent).

2. Fill the blanks according to the second paragraph.

Lu Yu, “the saint of tea”, ______ (mention) Shen Nong in his book Cha Jing a few thousand years later. The book describes how tea plants _______ and used to make tea. It also discusses where the finest tea leaves _______ (produce) and what kinds of water _______ (use).

3. Fill in the blanks with the proper forms .

People believed that tea _______ (bring) to Korea and Japan during the 6th and 7th centuries. In England, tea ________ (not appear) until around 1660, but in less than 100 years, it had become the national drink. The tea trade from China to Western countries ______ (take) place in the 19th century.

Work on 3c. Complete the sentences with the correct forms of the verbs in the box.

1. 告诉学生们本学习活动的要求：用所给单词的适当形式填空。

2. 让学生们读3c中的内容，理解每个句子的大体意思。

3. 学生们阅读句子内容，回想短文的内容，选择恰当的单词并用其恰当形式填空。

4. 如果不能直接填上，可以再去阅读短文，在相关的内容处，再仔细进行阅读，找到相关信息，并完成句子。

5. Check the answers。

( 1. invented 2. drunk 3. produced 4. brought 5. traded )

Ⅴ. Language points

1. by accident 偶然;意外地

e.g. The little girl knocked the glass by accident.

小女孩不小心碰落了玻璃杯。

2. ruler n. 统治者;支配者

rule (统治) + (e)r → ruler 统治者

e.g. The new nation needed a modern-minded ruler.

这个新兴国家需要一位现代头脑的统治者。

3. boil v. 煮沸;烧开

e.g. Boil the potato for 20 minutes. 把土豆煮20分钟。

4. remain v. 保持不变;剩余

① 作连系动词，后跟名词、形容词、不定式、分词等做表语。指保持某种状态。

e.g. Peter become a manager, but Mike remained a worker.

彼得成为经理，可迈克仍是工人。

② 作不及物动词，意为“剩余”。

e.g. Only a few leaves remained on the tree.

树上仅剩下几片叶子。

5. smell n. 气味

e.g. The apples give off a sweet smell.

苹果发出非常甜的味道。

v. 发出气味;闻到

e.g. I can smell some nice noodle soup.我能闻到香喷喷的面汤味。

6. national adj. 国家的; 民族的

nation (国家) + al → national

e.g. The group of dancers wore national dress.

那群跳舞演员穿着民族服装。

7. without doubt 毫无疑问;的确

e.g. Li Na, without doubt, is the best tennis player in China.

毫无疑问，李娜是中国最优秀的网球运动员。

8. take place 发生;出现

① 是不及物动词，不能用于被动语态;常指事先安排或事发有因的事情。

e.g. Her sister’s marriage took place at 8:00 today.

她姐姐的婚礼今天八点举行。

② 辨析：happen则常指偶然发生的事情

e.g. I happened to see Peter on my way to the museum.

在去博物馆的路上我碰巧遇到皮特。

9. It is said that a Chinese ruler called Shen Nong was the first to discover

tea as a drink. 据说有一位叫作神农的中国统治者最早发现了茶可以饮用。

It is said that…是个常见句式，表示“据说……”, that后面接完整的句子。

e.g. It is said that thirteen is an unlucky number in many Western countries.

据说在许多西方国家13是个不吉利的数字。

本单元还有一个类似的句式:

It is believed that…，意思是“人们认为……”, 其后同样接完整的句子。

e.g. It is believed that tea was brought to Korea and Japan during the 6th and

7th centuries.

人们认为，茶在六至七世纪传到了朝鲜和日本。

10.《茶经》是我国唐代一部有关茶叶及品茶的专著，作者陆羽。该书共

分三卷十节，全面叙述了茶叶生产的历史，源流，生产技术以及饮茶

技艺和茶道原理，享有 “茶叶百科全书”之美誉。

VI. Exercises

一、选词填空

smell, remain, ruler, boil, national

1. October 1st is __________ Day in China.

2. Humans are the _____ of the earth.

3. When fish goes bad, it _______ terrible.

4. They _________ in that forest for a year.

5. Water ______ at 100℃.

二、根据汉语提示完成句子。

1. I found the key __________ (偶然) when I was cleaning the house.

2. The May 4 Movement ___________(发生)in Beijing in 1919.

3. He’ll succeed ____________ (毫无疑问) this time.

4. ________ (据说) Shen Nong was the first to discover tea as a drink.

5. Tea _________________(被带到) Korea and Japan during 6th and 7th centuries.

Homework

1. Read the passage several times after school.

2. Make sentences with these words:

by accident, it is believed that, take place, no doubt, be used for, fall into

Section A 3 (Grammar Focus-4c)

一、教学目标：

1. 语言知识目标：

1) 学习掌握下列词汇：fridge, low, somebody, translate, lock, earthquake, sudden, all

of a sudden, biscuit, cookie, instrument

2)进行一步复习巩固学习Section A 部分所学的生词和词组。

3)进一步学习运用一般过去时态的被动语态。

4) 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。

2. 情感态度价值观目标：

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。

二、教学重难点

1. 教学重点：

1) 学习生词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，达到熟练运用的目标。

2. 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。

三、教学过程

Ⅰ. Warming- up and revision

1. Have a dictation of the new words learned in the last class.

2. Review some main phrases we learned in the last class. Check the homework.

3. Let some Ss tell something about how tea was invented by accident.

Tell something about how tea was invented by accident.

One day Shen Nong was boiling drinking 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 one of the world’s favorite drink was invented.

Tell something about Lu Yu and his Cha Jing.

Lu Yu “the saint of tea” mentioned Shen Nong in his book Cha Jing. The book describes how tea plants were grown and used to make tea. It also discusses where the finest tea leaves were produced and what kinds of water were used.

It is believed that tea was brought to Korea and Japan during 6th and 7th centuries. In England, tea didn’t appear until around 1660. The tea trade from China to Western countries took place in the 19th century.

Ⅱ. Grammar Focus.

1. 学生阅读Grammar Focus中的句子，然后做填空练习。

① 拉链是什么时候被发明的?

______ _____ the zipper ________?

② 它于1893年被发明。

It ______ _________ in 1893.

③ 它是由谁发明的?

______ _____ it invented ______?

④ 它是由惠特科姆•贾得森发明的。

It _____ _______ _____ Whitcomb Judson.

⑤ 茶叶什么时候被带到朝鲜去的?

_____ ______tea ________ to Korea?

⑥ 茶叶在六到七世纪之间被带到朝鲜。

It _____ _______ to Korea ________the 6th and 7th centuries.

⑦ 热冰淇淋勺用来做什么?

What ____ the hot ice-cream _____ _____?

⑧ 它用于挖很冷的冰淇淋。

It’s _____ ______ ______ really cold ice-cream.

⑨ 电话机在1876年被贝尔所发明。

The telephone _____ ________ _____ Alexander Graham Bell in 1876.

⑩ 贝尔于1876年发明了电话机。

Alexander Graham Bell _________ the telephone in 1876.

2. 学生们根据记忆，看大屏幕来完成填空练习。

3. 学生们完成填空试题后，可以打开课本检查答案，对错误的句子，单独进行强化记忆。

Ⅲ. Grammar

一般过去时态的被动语态的构成

英语有两种语态：主动语态和被动语态。主动语态表示主语是动作的执行者，而被动语态则表示主语是动作的承受者。如：

We cleaned the classroom yesterday.

我们昨天打扫了教室。

(主动语态，主语we是clean这一动作的执行者)

The classroom was cleaned yesterday.

教室昨天被打扫。

(被动语态，主语the classroom是clean这一动作的承受者)

一、一般过去时被动语态

一般过去时被动语态的结构为“主语+ was /were +及物动词的过去分词 (+by+动作的执行者).”。如：

Trees were planted last spring.

去年春天种了树。

1. 肯定句：

主语 + was/were +及物动词的过去分词 + 其他.

Paper was invented by Chinese people two thousand years ago.

纸是中国人在二千多年前发明的。

2. 否定句：

主语 + was/were not +及物动词的过去分词 + 其他.

Women were not allowed to take part in the games at first.

开始妇女不允许参加奥运会。

3. 一般疑问句：

Was/Were +主语 +及物动词的过去分词 + 其他?

Were these pictures drawn by your sister?

这些图片是由你妹妹画的吗?

二、被动语态的用法：

1. 不知道谁是动作的执行者，或没有必要指出谁是动作的执行者。

e.g. English is spoken all over the world. 全世界都在说英语。

2. 需要突出或强调动作的承受者。

e.g. This dictionary is used by most students.

这本字典是大多数学生在用的。

三、主动语态变被动语态应注意的问题

1. 有些短语动词相当于及物动词，变为被动句时介词或副词不能去掉。

They put off the meeting because of the weather.

The meeting was put off because of the weather.

会议因天气的缘故被推迟了。

2. 含有双宾语的主动句变为被动句时，通常把指“人”的间接宾语变为主语，指“物”的直接宾语保留不变;如果把指物”的直接宾语变为主语，则在间接宾语前加to或for。

My aunt gave me an e-dictionary yesterday.

I was given an e-dictionary yesterday.

An e-dictionary was given to me yesterday.

3. 主动句中感官动词see/hear/watch/feel等和使役动词make/let/have等后跟省略to

的动词不定式，变为被动语态时应加上不定式符号to。

I saw a heavy man enter the house.

A heavy man was seen to enter the house.

4. 系动词、不及物动词或某些短语动词(happen, take place, come true, fall asleep…)没有被动语态。

What happened to Mr. Brown?

布朗先生发生了什么事?

Ⅳ. Exercises

练一练

将下列句子变为被动语态。

1. He chose six story books the other day.

Six story books _____ _______ by him the other day.

2. Uncle Lee gave Jack a large cake for he painted the wall wonderfully.

Jack ______ _____ a large cake for he painted the wall wonderfully.

3. A mouse ate half of the cake last night.

Half of the _____ ____ by a mouse last night.

将下列句子变为主动语态。

4. Were these machines invented by Edison?

_______ Edison _______ these machines?

5. The post card was sent to Linda by Paul.

Paul _______ the post card _______ Linda.

6. America was discovered by Columbus.

_______ Columbus discovered _________?

Ⅴ. Practice

Work on 4a:

1. Tell Ss to read the sentences in 4a and rewrite the sentences using the passive voice.

2. 做题方法点拨示例：

① 点拨：原句为一般过去时态，原句的谓语动词为sold，宾语为the fridge;改为被动语态时，应将the fridge作主语，谓语动词用was sold的形式。

They sold the fridge at a low price. →

The fridge was sold at a low price.

② 点拨：分析原句的句子结构可知，stole是谓语动词，my camera是句子的宾语;改为被动语态句时，应将my camera作句子主语，谓语动词用was stolen的形式。

Somebody stole my camera from my hotel room. →

My camera was stolen from my hotel room.

学生们自主将其他三个句子变成被动语态。

3. 最后，教师与同学们一起校对答案，并对学生们有疑问的地方进行解释，或做出合理的分析点拨。

Where were these photos taken?

We were advised not to go out alone.

The book was translated into different languages by different writers.

Work on 4b: Complete the sentences with correct forms of the verbs in the box.

1. 让学生们阅读方框中的词汇，了解词汇及句子的意思，为进行填词做好准备。

eat, like, invite, tell, lock, ring, break, bring

2. 认真阅读每个句子，根据上下文确定空格处应填的意思。

3. 逐句进行分析推敲，然后分析句子的时态及语态，用适当的形式填空。

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.

4. 最后，通读一遍所有句子，进行综合理解，看句子的意思是否通顺，合理。

5. Check the answers with the Ss.

1. were invited 2. were brought

3. was locked, rang (前一句中，门是被锁的，故应用被动语态;后一句中，我们去按门铃，是主动语态。)

4. were told, broke (前一句中，学生们是被告诉不要做这些事情，故应用被动语态;后一句中，Ruby违反规则，则是主动语态。)

5. were eaten, liked (前一句中，饼干是被孩子们吃掉了，故应用被动语态;后一句中，孩子们喜欢这些饼干，则是主动语态。)

Ⅵ. Practice

Work on 4c: Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks.

1. 先通读小短文，了解大意。

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.

2. 逐句分析每一句话的意思，确定句子主语和谓语动词之间主动或被动关系。

3. 结合句子的时态，填上正确的形式。

4. 复读短文，看是否通顺。

5. Check the answers

Homework

补全下列主动句变被动句。

1. Jenny put her clothes in the suitcase last night.

Her clothes____ ____ in the suitcase last night.

2. The twins sang an English song that day.

An English song ____ _____ ___ by the twins that day.

3. Did they build a bridge here a year ago?

____ a bridge ____ here by them a year ago?

4. They sold out the light green dresses yesterday.

The light green dresses ____ _____ _____ out.

Section B 1 (1a-2e)

一、教学目标：

1. 语言知识目标：

1) 能掌握以下单词：crispy, salty, sour, by mistake, customer, the Olympics, Canadian, divide, divide…into, basket, popularity, look up to, hero, professional

2) 能掌握以下句型：

① Potato chips were invented by mistake.

② It is believed that the first basketball game in history was played on December 21, 1891.

③ Dr. Naismith divided the men in his class into two teams and taught them to play his new game.

④ At the same time, they need to stop the competing team from getting the ball into their own basket.

⑤ These stars encourage young people to work hard to achieve their dreams.

2. 情感态度价值观目标：

了解世界上一些对人类有着重大意义的发明的相关信息，开阔学生的眼界，养成勤于思考，善于发现的好习惯，培养学生的创造精神。

二、教学重难点

1. 教学重点：

1) 掌握本课时出现的生词及用法。

2) 进行听力训练，提高综合听说能力。

3) 阅读短文，获得相关信息，提高学生们的综合阅读能力。

2. 教学难点

1) 听力训练

2) 阅读2b部分的短文并完成相关要求。

三、教学过程

Ⅰ. Warming up

1. Let Ss watch an interesting picture.

2. Ask some questions about them.

1. What did they eat?

S1: Ice cream.

2. What did the big dog think of the ice-cream?

S2: Sweet, cool, and delicious!

Well let’s look at some other delicious food, please.

Ⅱ. Talking

Work on 1a

1. Tell Ss that the words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.

2. Ss work with their partners and try to write some proper words under the pictures.

3. Let some Ss read their answers. Try to remember the new words.

Work on 1b

1. Let some Ss read the adjective words in the box. Make sure they all know the meaning of each word.

2. Ss discuss with their partners. Try to write the name of a different food after each word.

Learn the new words together:

Ⅲ. Listening

Work on 1c

1. Tell Ss the conversation is about how the potato chips were invented. The story is very interesting.

2. First, let one Ss read the sentences in 1c. Make sure they know the meaning of each sentence.

1. Potato chips were invented by mistake.

2. They were invented in 1863.

3. The customer thought the potatoes were not thin enough.

4. The customer said they were not salty enough.

5. George wanted to make the customer happy.

6. The custom was happy in the end.

3. Play the recording for the Ss. Listen for the first time. Play the recording again and judge T or F.

Keys: T, F, T, F, F, T

4. Listen and answer the questions.

1. Who invented potato chips?

2. When were they invented?

3. What did the custom order at the restaurant?

4. What did the custom think of the potato chips George cooked at first?

5. How did George cook the potatoes then?

Work on 1d

1. Let Ss read the article in 1d first. Tell Ss to listen again and fill in the blanks with the right words.

2. Play the recording again for the Ss to listen and write the words.

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 ____.

Keys: were invented, 1853, thin, crispy, really salty

Ⅳ. Pair work

1. Work in pairs. Make a conversation about the invention of potato chips. Use the information in 1c and 1d.

2. Ask some pairs to act out their conversation in front of the class.

Ⅴ. Discussion

Show some pictures of playing basketball. Ask Ss some questions about basketball games. Discuss the sport with your partner and share your ideas with the class.

e.g.

T: Do you like basketball? (What’s your favorite sport?)

S1: Sure. I like it very much.

T: Do you watch basketball games?

S2: Yes. I like to watch the NBA and CBA.

T: Do you know the history of basketball game?

Ⅵ. Reading

Fast Reading

Tell Ss to read the passage quickly. And find the main idea of each paragraph.

Keys: 1. The main history of basketball.

2. How the basketball was invented by James.

3. The popularity of basketball around the world.

Careful Reading

1. T: Now let’s read the mind map in 2c. Try to understand the meaning of the map.

Ask Ss to complete the mind map with the information in the passage.

Mind-mapping

Changing the information you read into a mind map may help you remember it more easily.

2. Ss read the passage carefully and try to fill in the mind map with the proper words.

Development:

Ø invented by ______________

Ø first game on ________________

Ø became Olympic event in ______ in the year ______.

Ø most famous games: _____

Ø popular games in China: _____

Game:

Ø played inside on a hard _____.

Ø ____ teams

Ø get _______ into other team’s ______.

Popularity:

Ø played by __________________ people.

Ø over ____ countries

3. Check the answers with the class.

4. Tell Ss to work hard and add something to the mind map.

Encourage Ss to try their best.

Post reading

Work on 2d

1. Now let’s work on 2d. First read the questions below. Then try to read the passage again and find the answers to the questions.

2. Ss read the passage again and try to find the answers to the questions.

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?

3. Let some Ss read their answers and correct their mistakes.

Ⅶ. Language points

1. Potato chips were invented by mistake.

by mistake 错误地;无意中

e.g. Somebody took the my umbrella by mistake. 有人错拿了我的伞。

I picked up your bag by mistake. 我错拿了你的包。

2. Dr. Naismith divided the men in his class into two teams…

divide v. 分开;分散

divide… into… 把……分开;分散

e.g. She divided the orange into quarters and each ate a piece.

她把橙子分成四份，每人吃一份。

3. Today, the popularity of basketball has risen around the world, with many young people dreaming of becoming famous players.

1) today adv. 修饰整个句子，表示当前的一段时间，“如今;当今”。

e.g. Today, only a few kinds of these beautiful animals still live on the earth.

现今，这些美丽的动物只有少数几种还生活在地球上。

2) with与在意义上有主谓关系的复合结构many young people dreaming of…构成短语，用作状语。

4. Basketball has not only become a popular sport to play, but it has also become a popular sport to watch.

not only…, but also… 不但……而且…… 若连接两个成分作主语，谓语动词与靠近的主语保持一致。

e.g. Not only the students but also their teacher is enjoying the film.

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。

5. The number of foreign players, including Chinese players, in the NBA has increased.

1) number表示数量。由于是单数形式，谓语动词需要与之相配，为has increased。这种主语和谓语在数上的匹配称作“主谓一致”。当主语为复数概念是，谓语动词用复数形式与之匹配;当主语为单数概念时，谓语动词则用单数形式。

e.g. People there are very friendly. people为复数概念。

The United Nations is an international organization that tries to find peaceful solutions to world problems. the United Nations是一个组织，为单数概念。

2) the number of… “……的数量;……的数目”。作主语时，谓语动词应用单数形式。

a number of… “若干的，一些”，修饰可数名词。作主语时，谓语动词应用复数形式。

e.g. The number of people killed in the accident hasn’t been announced yet.

这次事故中的死亡人数尚未公布。

A number of people are unhappy with this decision.

一些人对这项决定并不满意。

6. Many young people look up to these basketball heroes and want to become like them.

look up to 钦佩;仰慕

e.g. The artist is looked up to for his landscape paintings.

这名画家以风景画受人仰慕。

拓展：look词组

look back 回头看; 回顾

look down upon (on) 看不起,轻视

look forward to 盼望，期待

look into 朝......看去; 调查

look like 看上去象

look on 旁观，观望

look out 当心，小心，留神

look through 浏览;透过......看

look up 查阅; 抬头看

Ⅷ. Discussion

Work on 2e

1. Ask Ss what they think of famous basketball players. Make a list of good and difficult things about being a basketball player.

2. Ss work in groups. Discuss them with their partners and make a list.

3. Let some groups read their lists.

Homework

Write a short passage about the development of basketball.

Section B 2 (3a-Self Check)

一、教学目标：

1. 语言知识目标：

1) 复习一般过去时态被动语态的用法。

2) 能够用英语讲述自己所熟悉的某一发明的简单过程。

3) 能用就本单元所学习的寓言故事等语言材料，进行完型填空。 并用英语介

绍某一发明的简要过程。

2. 情感态度价值观目标：

了解世界上一些对人类有着重大意义的发明的相关信息，开阔学生的眼界，养成勤于思考，善于发现的好习惯，培养学生的创造精神。

二、教学重难点

1. 教学重点：

1)用英语介绍某一发明的简要过程。

2)掌握本单元所学的词汇、句型及语法知识，并能进行综合练习运用。

3)完成Self check部分的练习试题。

2. 教学难点：

用英语介绍某一发明的简要过程。

三、教学过程

Ⅰ. Revision

1. Review the expressions and sentences in Section B 1.

2. Check the homework.

Let Ss introduce the history of basketball.

Ⅱ. Lead in

1. Ask Ss which invention they like best.

Ss think about their favorite inventions.

2. Let some Ss talk about their favorite inventions.

Ⅲ. Thinking

1. Ask Ss what things they don’t like to do.

e.g. Problem: quickly taking notes in class.

2. Discuss in group and think of an invention that could help you.

e.g. New invention: a special pen

What it is used for： taking notes quickly in class

3. Ss discussing the problems and try to make their own notes.

4. Let some Ss read their notes to the class.

Ⅳ. Writing

Work on 3b:

1. Tell Ss to write a description of your new invention.

2. The following sentence structure may help you.

常用句型：

① I think … is a very useful invention.

我认为……是一项很有用的发明。

② … was invented by…

……是由……(某人)发明的

③ … was invented in…

……是在……(某时间)发明的

④ It was used for… 它被用来……

⑤ … is made of……… 是由……(材料)制成的

Ⅴ. Self Check

Work on Self Check 1:

1. Read the words in the box and make sure they know the meaning of each word.

2. Read the passage and try to fill in the blanks with the proper word.

3. Read the passage again. Check if the forms of the words are correct.

3. Let some Ss read their answers. Correct the mistakes.

Work on Self Check 2

1. Tell Ss to rewrite the sentences using the passive voice.

2. 方法指导：

复习一般过去时态的被动语态的句子结构。

复习将主动语态句子变为被动语态句子的过程。

3. Ss work by themselves and try to rewrite the sentences.

4. Check the answers with the class.

Work on Self Check 3

Find out information about an invention you would like to know more about and write sentences below.

Invention: __________

When: _____________

Who: _____________

Purpose: __________

Exercise:

If time is enough, do some more exercises on big screen.

一、用所给单词的适当形式填空

1. During the afternoon, there was a _______ (suddenly) heavy fall of snow.

2. I think the telephone _____________ (invent) before the car.

3. The __________ (Canada) song Alouette(百灵鸟) is a fun song about a bird.

4. They ____________ (invite) to take part in the May Day celebrations in Beijing.

5. The ___________ (popular) of private cars is changing the people’s life style.

6. When the bill ____________ (bring) to him, he was such surprised.

7. They gave their lives for their country and were honored as ________ (hero).

8. We ___________ (divide) into eight groups by our teacher last week.

Homework

1. 试着向你的朋友用英语讲述篮球的发展过程。

2. 用下列词汇造句子。

look up to, by mistake, daily activities, It is said, all of a sudden, fall into, at the

Olympics

标签： 初三英语