高中英语人教版 (2019)选择性必修 第四册Unit 3 Sea Exploration获奖课件ppt

教学过程

新课

Skim

Look at the title and skim the text. Decide what type of essay it is?

Tips:

The first or the last paragraph is extremely important when giving information on a subject, leading the topic to the point the author wants to stress.

Pay attention to the first sentence of each paragraph.

Four types of essay

1. Narrative : a story with a beginning + middle + end.

2. Descriptive : a subject + interesting details

3. Expository : a subject+ factual information

4. Persuasive : an idea + to convince the reader

What type of essay is it?

Narrative

Descriptive

Expository :

Argumentative

Read

Read the text again. Write down the main idea of each paragraph

Para 1: Travel from east to west began long before Columbus.

Para 2: In ancient times, travel east to west was on the Silk Road.

Para 3: Zheng He’s sea voyages built relations with other countries.

Para 4:The Maritime Silk Road has encouraged cooperation and strengthened the bonds between China and the rest of the world.

Para 5: China has joined  other nations on other important projects.

Para 6: China will continue to explore the sea and enhance relationships with other countries.

Scan

1.Scan the text and match the time and events

2.Scan the text and fill in the table with the correct names

Careful-Reading

1. China’s Sea Exploration

Comprehension

1. How is the passage developed?
The passage is developed by time order.

2. Choose the best answer

1.Why did European explorers look for sea routes from west to east?                                                                                       

A. They intended to develop their own business          

B. They were curious about the outside world              

C. They were ambitious to make a great achievement   

D. They were inspired by Marco Polo's tales

2. What made the regions to the west of China explored more?

A. People’s curiosity           

B. Chinese silk     

C. Further development of trade                                          

D. Awareness of each other s culture

3.What's the purpose of the Belt and Road Initiative?             

A. To satisfy people's curiosity and desire                                       

B. To promote trade cooperation and enhance the relationship                                                                                           

C. To revisit the ancient sea routes travelled by Zheng He   

D. To invest billions in systems and services.

4.Now the advantage to reach out across the sea is                 

A.that we have done it for hundreds of years                                 

B.that we have advanced technology                                            

C.The need to trade 

D.the desire to enhance relationship

Discussion

Discuss the following questions. Make notes under two columns：

Facts and Opinions

Tips：

Facts are statements that can be proven. Facts may be true or false.

Opinions are statements that cannot be proven. Opinions can be argued.

1.Which countries reached out across the sea in the past and why?

Fact: European explorers, China, India, Ceylon, African royal families

Opinion: for trade

2.What benefits and problems did those countries get form doing so?

Fact: They got new products from many different countries and became more aware of other cultures.

Opinion: In some cases, this led to invasion and conquest.

3.What effects did reaching out across  the sea in the past have on the world?

Fact:The land and sea routes remained active channels between different cultures for centuries.

Opinion: Generally speaking, the result was positive, as it advanced the spread of knowledge, technology, and goods, and made the world a smaller place.

4.What do you think is the significance of the Belt and Road Initiative?

Fact: The aim of this initiative is to encourage cooperation and trade across the historical Silk Road areas, and strengthen the bonds between China and the rest of the world.

Opinion: It will lead to greater integration with China and other countries

Students look at the title and skim the text. Then decide what type of essay it is?

.

Students read the text to find the main idea for each paragraph.

Students scan the text and match the time and events

.

Students scan the text and fill in the table with the correct names

Students read the text carefully again and take notes about China’s Sea Exploration

.

Students analyze how  the passage is developed

Students choose the best answer.

Students discuss the questions and make notes under two columns：

To recall four  types of essay and skim the text to find out what type of essay it is.

This is a parallel activity for reading  a passage to find the main idea of each section of text.

To scan for time and events.

To scan for details ,such as names of people and places.

To catch the details of the text and analyse the main content of China’s Sea Exploration

To analyze the structure of the text..

To check the skill of reading comprehension.

To analyze the passage and draw the conclusions from it, separating facts from opinions.

Language points

1. extend     vt.  扩展；使伸长；延长

【教材原句】

A trading route across the sea was also extended along the coasts of the Indian Ocean，centred around Ceylon (now Sri Lanka)．它是一条横跨海洋的贸易路线也沿着印度洋海岸延伸，以锡兰(现在的斯里兰卡)为中心。

【实例品读】

By popular demand, the tour has been extended by two weeks. 

应大家要求，这次旅游延长了两周。

【热点归纳】

extend from ...to 从……延伸到……

extend sth to sb.给与某人某物

extend out     伸出

【考点精练】　

(1)The tourist season extends________ May to October.

(2)During the epidemic outbreak，China extended its helping hand ______ many other countries around the world.

2. negotiate　vt. &vi. 商定， 谈判， 协商， 达成（协议）

【教材原句】

Here，merchants from China and many other places met to negotiate trade deals，which also led to more awareness of each other's cultures.

在这里，来自中国和其他地方的商人聚集在一起商谈贸易协定，这也促使了他们对彼此文化的更多了解。

【实例品读】

We are negotiating for the release of the prisoners.我们正在为释放囚犯进行谈判。

【热点归纳】

under negotiation 在谈判中

negotiate with sb on/about/over  sth 和某人协商某事

negotiate for sth  为 而谈判/协商

【考点精练】　

(1)He has insisted that his organization will  again negotiate _____the government ______the new regulation.

关于这个新规定，他坚称他的组织将会与政府再次谈判。

(2)We have been negotiating _______more pay. 

我们一直在为增加工资进行协商。

3.withdraw vi.&vt.(withdrew，withdrawn)(使)撤回；撤离，使退出；提取

【教材原句】

Although China withdrew from further expeditions after 1433，these land and sea routes remained active channels between other cultures for centuries.虽然中国在1433年以后就退出了进一步的探险活动，但几个世纪以来，这些陆上和海上的路线一直是其他文化之间的活跃通道。

【实例品读】

You can withdraw money from the account at any time without penalty. 

您可以随时从账户中提款，不收罚金。

【热点归纳】

withdrawal n.收回；退出；戒毒过程

withdraw from从……退出；撤回

【考点精练】　

(1)I want to _____________ a statement I made earlier in order not to be misunderstood.

(2)In order not to be disturbed he wanted to _______________________________the guest

  list.

4. league n.等级;水平;联合会;联赛

【教材原句】These fleets were a sight to behold and were in a league of their own at that time.这些舰队是值得一看的,它们在那时独领风骚。

【实例品读】

Over the past year, the company has joined the big league. 

去年一年中，公司已跻身一流之列。

【热点归纳】

in a league of one’s own独领风骚

at the top of the league顶级的

be in the same league同一级别

in league with与……密谋;与……结盟

out of one’s league某人力所不能及

【考点精练】　

(1)作为歌唱家,他独领风骚。

As a singer,he is in a league ________________________. 

(2)在酿酒方面他们和法国不是同一个级别。

They’re not_________________________as the French at making wine. 

5. bond  n.纽带；关系 vt.& vi.增强关系；使牢固结合

【教材原句】

The aim of this initiative is to encourage cooperation and trade across the historic Silk Road areas, and strengthen the bonds between China and the rest of the world. 这一倡议的目的是鼓励横跨历史悠久的丝绸之路地区的合作与贸易，并加强中国与世界其他地区之间的联系。

【实例品读】

Mothers who are depressed sometimes fail to bond with their children. 

患忧郁症的母亲有时无法和孩子建立亲子关系。

【热点归纳】

bond between...……之间的联系

bond...to...把……粘在……上；使……结合

【考点精练】　

(1)Silver overlay is bonded ______ the entire surface.

整个表面都镀了一层银

(2)A bond of friendship had been forged ________ them. 

他们之间形成了一种友谊的纽带。

Important phrases

1.set sail起航；开航                                    

【教材原句】 However， merchants and explorers from the East set sail from east to west many years before Columbus first did.然而，在哥伦布首次出海之前的很多年，来自东方的商人和探险家就从东向西扬帆远航。

【实例品读】Christopher Columbus set sail for the New World in the Santa Maria.
克里斯托弗·哥伦布从圣玛丽亚启航前往新大陆。

【热点归纳】set sail for/to开船；动身前往……

set sail from从……启航

set off动身；出发；引爆；引发

set out to do sth. 出发；开始做某事

(1)We made a great deal of money，so we decided that it was time to ________________ home.我们大赚了一笔，因此我们决定该是启程回家的时候了。

(2)At five in the morning he _______________（set about doing）his work．

清晨五点他就开始工作。

2.in hand在手头；可供使用；在处理中；在控制中                                            

【教材原句】 Hundreds of years on，and with the latest technology in hand，the need to trade and the desire to enhance relationships will drive China to reach out across the sea far into the future.数百年过去了，随着最新技术的掌握，贸易的需要和加强关系的愿望将推动中国跨越海洋走向遥远的未来。

【实例品读】

She always had a great deal of work in hand, but no one ever heard her complain. 

她手头总有许多工作要做，但从没有人听到她发过怨言。

【归纳拓展】

at hand近在手边，在附近

at first hand第一手；亲自

by hand用手工

hand in hand手挽手

【考点精练】

(1)Having enough data____________，we can set out to carry out our plan as scheduled.(翻译句子)

(2)I don’t have my photograph album _____ hand，but I’ll show it to you later.

(3)Even for personal letters，I’d rather use a computer than write _____hand.

Important sentences

【教材原句In ancient times，silk from China found its way overland to India，the Middle East，and Rome，along what became known as the Silk Road.

在古代，来自中国的丝绸沿着后来被称为“丝绸之路”的路线，经由陆路传到印度、中东和罗马。

【句式分析】

what引导的宾语从句放在介词或动词之后，从句中使用陈述语序。what在从句中作主语、宾语或表语，表示“……的”。

表示“…的东西或事情”，相当于the thing that...

表示“…的时间”, 相当于the time that....  

表示“…的人”, 相当于the person that...

表示“…的地方”, 相当于the place that...

表示“…的数目”, 相当于the amount/number that...

【考点精练】

(1)It's very different to ___________ I'm used to. 

这与我所习惯的大不相同。

(2)It also gives people a chance to see

_____________________________________.  

它也给人们一个去看看新房子的样子的机会。

(3)The content of the course depends on _________ the students would like to study. 

课程的内容取决于学生愿意学什么。

Exercise

单词拼写

用括号内所给单词的适当形式填空。

1.I've heard t___ of people seeing ghosts in that house.

2.When it comes to cooking, I'm not in her l________ .

3.Careful maintenance can e_____ the life of your car. 

4. We were given a r_________welcome.

5. This was one of the major sticking points in the ____________.

课文填空

It is trade and_________(curious) that have often formed the foundation of mankind's greatest achievements. Long before brave merchants were the real explorers of the Western World. Silk from China found___(it)way overland to India， the MiddleEast and Rome in exchange for spices and glass， along______ became known as the SilkRoad.During theMing Dynasty， under the command of Zheng He， seven fleets set sail and finally reached the east coast of Africa.Although the exploration by Zheng He ______(stop)after 1433， the voyages made by Zheng He renewed the friendly relations between China and other countries in Asia and Africa.

Today, people still have ______strong desire to reach out across these a.In order to revive the ancient sea routes_____________(travel) by Zheng He, Chinese President Xi proposed an initiative in 2013.The initiative________(call) the Belt and Road Initiative，whose aim is_____________(encourage)cooperation and trade across the historic SilkRoad areas， and____________(strength) the bonds between China and the rest of the world.

In recent years， China has also been exploring the Arctic to understand climate change and its effects._______the latest technology in hand, China will continue to reach out across these a far into the future to trade and enhance relationships.

Pay attention to the usage of each word.

Let students practise important phrases.

To analyze the key sentence.

Students do the exercises by themselves.

Learn the how to use the key words.

To train students’ ability to use the   phrases correctly.

To train students’ ability to use the  key sentence.

To grasp the usage of important words.

To summarize the text.

作业

Homework

Do the exercises on

Page 75 of Workbook.