高中英语人教版 (2019)选择性必修 第一册Unit 5 Working the Land优质ppt课件

导入新课

Step1 lead –in

Go over the last class by retelling the passage and remember the key words and phrases.

With a

game to

remember

the words

and phrases

The method can arouse students’ interesting, and they can come into the class actively.

讲授新课

Step2 Study

Key words：

1. devote vt. 把…献给；把…专用于；专心于 

记牢：devote …to…把…用于；把…奉献于

be devoted to/ devote(oneself) to致力于；献身于，to为介词。

精练：

1. They devoted  （they）to doing some agricultural research.

2.这些艺术家把终生献给了艺术。

These artists devoted all their life to art.

2. estimate vt. 估计；估价；估算    

 n.估计；估算 

记牢：be estimated to be 估计是

     It is estimated that…据估计

精练：

1. He  （estimate）what happened yesterday.

2.据估计中国有超过14亿的人口

It is estimated that China has a population of over 1.4billion.

Key Phrases：

包含；包括；由…组成

be composed of; consist of;

be made up of;

be comprised of

救援队由十个警察和八个医生组成。

The rescue team ________ ten policemen and eight doctors.

is composed of; consists of; is made up of; is comprised of

Step3：Discussion

Complete the sentences with the correct forms of the words from the text.

1. The characteristic of a person are the special qualities that make him or her different from others.

2. Scientists from different countries have been pursuing various possibilities to overcome food shortage . 

3. Many of us assume that earthquakes would never happen in our area.

4. With more and more farm machines being used in the fields, the consumption of fuel has been increasing.

5. Newspapers should pay less attention to media celebrities and more attention to our national heroes.

6. Our general manager tried his best to help overcome the difficulties we were facing during the financial crisis. 

7. My mother is very conventional and finds it hard to accept the modern lifestyle that I enjoy.

8. The government has decided to boost the programme to generate more new jobs.

Step4：Exercises

Complete the passage below with the correct forms of the words in the box.

tackle   vision   conventional   deep down   be comprised of   reality consumption  

 A vast underground shelter built during World War II has been turned into an urban farm, supplying supermarkets and restaurants in London. The shelter, which could protect up to 8000 people from wartime bombs, was comprised of two large tunnels that were intended to one day become an extension of the London Underground. But that never became reality and the shelter was left for 70 years.

Then businessmen decided to make use of it to grow green vegetables to meet increasing                            demands.

The tunnels are lit with pink LEDs as there is no natural light deep down below the ground. The vegetables are grown in special liquids instead of the earth that is used as in conventional farming.

Many experts share a vision that this kind of urban farming could help not only in                     tackling the problem of population growth, but also in adapting to climate change.

Complete the sentences with the correct forms of the words  in the box.

Complete the sentences with the correct forms of the words  in the box.

The school board plans to have an extension built to the library.

2. The new film generated a lot of excitement, and ticket sales were way beyond our expectations.

3.Unable to overcome his shyness, he stood there without saying anything.

4.Foreign trade has expanded greatly in the past few years.

5. It is estimated that the project will last more than ten years.

Study the key words and expressions to

build up

your vocabulary and make notes.

Discuss and

translate the sentences into Chinese in group

Finish the exercises in groups.

Discuss in

Groups to

complete the passage with the correct forms of the words as

soon as

possible.

Improve students’ the ability of

understanding. And they can remember more words using these methods,

thus cultivating

students’

analytical and

creative abilities.

Develop their

creativity to new

words and

remember words more clearly

Learn to draw a conclusion to

help them finish the exercise

easily.

课堂小结

Step5:Summary:

These are what we’ve learned in this passage.

Step6 Homework

Use the words and expressions about “hunger” to introduce

the hungry situation of the world.

板书

Unit5 Working the Land

Build up your vocabulary

Key words：

1. devote vt. 把…献给；把…专用于；专心于 

devote …to…把…用于；把…奉献于

be devoted to/ devote(oneself) to致力于；献身于，to为介词。

2.estimate vt. 估计；估价；估算    

 n.估计；估算 

be estimated to be 估计是

It is estimated that…据估计

Key Phrases：

包含；包括；由…组成

be composed of; consist of;

be made up of;

be comprised of