外研版(2019) 必修 第二册 Unit 6 Earth first Reading课件(共39张)

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名称 外研版(2019) 必修 第二册 Unit 6 Earth first Reading课件(共39张)
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资源类型 教案
版本资源 外研版(2019)
科目 英语
更新时间 2025-05-06 11:56:29

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(共39张PPT)
Unit 6
Unit 6
Earth first
1. To have a general knowledge of what's really green in our daily life.
2. To learn the role and function of subheadings.
3. To learn some key words and expressions in this lesson.
What’s really green How much do you know about really green
Look at the questions about “green living” and tick your answers.
1. Which shopping bag is more environmentally friendly
□ A plastic bag.
□ A paper bag.
□ Neither of these.
2. What should you do to save energy when leaving your home
□ Turn off a device.
□ Unplug a device.
□ Neither of these.
n. 设备,仪器,装置
3. What food is better for the environment
□ Food produced near to where you live.
□ Food produced far from where you live.
□ It depends.
4. Which uses less water
□ Taking a bath.
□ Taking a shower.
□ It depends.
Now work in groups and see if other people share your ideas.
Read the four subheadings in the passage and decide if they are true or false.
Learning to learn
As subheadings expand on the main heading or title, they can be slightly longer than the main heading. Although not every paragraph needs a subheading, they can be skimmed to give the reader an overall understanding of the content of a text.
Paper shopping bags are better than plastic ones.
When you turn off a device, it stops using power.
Eating local food is good for the environment.
It’s better to take a shower than a bath.
What’s really green
Read the passage and check your answers.
Read the passage quickly and find out the purpose of the passage.
To introduce some common “green truths” that have been shown to be only half true, or even completely false.
adj. 不正确的,错误的
Conclusion
Introduction
Body
green
truth 1
green
truth 2
green
truth 3
green
truth 4
Read the passage again and draw a mind map to show the structure of the passage.
Read the effects and complete the causes of these according to the passage.
CAUSES
EFFECTS
1. Making a paper bag uses more energy and water than making a plastic bag. It also produces more greenhouse gases.
Paper bags are not good for the environment.
2. Devices turned off go into stand-by mode and still use power.
Turning off a device won't stop it from using power.
3. Local produce sometimes might use more energy and produce more greenhouse gases than produce grown a long way away--even taking into account its transport.
Eating local food isn't always better for the environment.
CAUSES
EFFECTS
adj. 备用的
把……考虑进去
4. If you spend more than eight minutes in a shower, you'll use as much water as in a bath--about 50 litres of water.
CAUSES
EFFECTS
It's not always better to take a shower than a bath.
n. 升,公升
1. Which of the “green truths” surprises you most Give your reasons.
2. Are you aware of any other “green truths” that are not true Share them with the class.
3. How “green” are you Share your “green actions” with the class.
4. What can you do to become “greener”
Work in groups. Give a talk about one of the “green truths” in the passage.
1. Use these questions to help plan your talk.
Which “green truth” are going to talk about
Why do people believe it is “green”
Why is it not completely true
What can you do to become “greener”
2. Organise your talk following the steps below.
Start your talk by stating the topic.
Describe your chosen “green truth” in more detail.
Explain why it is not completely “green”.
End your talk by encouraging your audience to become “greener”.
3. Give your talk to the class.
1. It takes hundreds of years for plastic to break down, but much less time for paper.
break down: if a substance breaks down or is broken down into parts, it separates into the parts that it is made up of 分解,分化
eg After many years, rocks break down into dirt.
Food is broken down in the stomach.
break down还意为:
The plan was good, but it broke down, because people were unwilling to cooperate.
We are sorry to arrive late, but the car broke down.
Your health will break down if you work too hard.
The young woman broke down in tears.
(计划、谈判等)失败
(机器、车辆等)坏了
(身体)垮了
感情失控(痛哭起来)
【语境应用】翻译句子。
1) 电梯坏了,我们不得不走楼梯。
The lift breaks down, so we have to walk up the stairs.
2) 他听到这个消息时不禁痛哭起来。
He breaks down when he hears the news.
amount n. a quantity of something such as time, money, or a substance 数量,数额
2. However, making a paper bag uses four times as much energy as making a plastic bag and up to three times the amount of water.
eg They spend equal amounts of time in California and New York.
他们在加利福尼亚和纽约呆同样长的时间。
amount v. if figures, sums etc amount to a particular total, they equal that total when they are added together 总计,共达
常与介词to搭配。
eg Time lost through illness amounted to 1,357 working days.
因疾病而损失的时间总计为 1357 个工作日。
【归纳】
amount
a large / considerate / enormous / huge /... amount of
大量的,许多 (修饰不可数名词,谓语动词常用
单数形式)
amounts of 大量的,许多 (修饰不可数名词,
谓语动词常用复数形式 )
表示“许
多,大量”
可数
不可数
a great / good many, a great / large /
good number of, (quite) a few等。
(quite) a little, a great deal of, a large
amount of, large amounts of等。
plenty of, a lot of, lots of, a mass of,
masses of 等, 这时谓语动词的单复数形式
取决于它们后面所接名词的形式。
可数名词
复数/不可
数名词
【语境应用】单句语法填空。
1) A large amount of damage ___________ (do) in a very short time.
2) Large amounts of money ___________ (spend) on the freeway every year.
3) There _______ (be) a huge amount of information on the Internet.
was done
are spent
is
写准核心单词。
4) Today $8 or $10 seems a small ________ (数量) of money, but at that time these amounts were forbidding to most citizens.
amount
3. To make sure your appliance is in fact off, remove the plug from its power supply.
remove v.
①to take something away from, out of, or off the place where it is 移走; 搬走; 去掉
eg Remove the old wallpaper and fill any holes in the walls.
②to get rid of something so that it does not exist any longer 清除,除去
eg This treatment removes the most stubborn stains.
③dismiss from a job or office 免职,解雇
eg Congress could remove the President from office.
④to take off a piece of clothing 摘掉; 脱掉
eg He removed his hat and gloves.
【归纳】
remove...from… 把……从……移开
remove sb. from school 开除; 勒令某人退学
remove one’s doubt/ trouble 消除某人的疑虑/烦恼
【语境应用】写出下列句中remove的含义。
1) If a nest has four eggs and you remove one, the bird will not notice.
2) He removed his jacket when he arrived home.
3) He was severely criticized and removed from his post.
4) The agreement removes the last serious obstacle to the signing of the treaty.
5) Three children were removed from the school for bad behaviors.
消除
拿走
撤职
脱掉
开除
move, transfer, remove
这些动词均可表从一处移往另一处之意。
move: 普通用词, 指从一处到另一处转移。
transfer: 一般表示转送/移交或迁移, 尤指交通运输中的换乘或职务的调动等。
remove: 移动, 与move可换用, 还可指撤职或开除学籍等。
4. In some cases, local produce might have used more energy and produced more greenhouse gases than produce grown a long way away — even taking into account its transport.
produce v. to grow something or make it naturally; to make, write etc something to be bought, used, or enjoyed by people
生产;创作;生长
eg Their factory produces 500 bikes a day.
He has produced a lot of songs in the past ten years.
The tree produces much fruit each year.
produce u.n. 农产品
eg They provide us with fresh produce every day.
produce, product与production
produce u.n. 农产品
product c.n. 产品,制品
production u.n. 生产行为,产量
【语境应用】 用produce, product, production的适当形式填空。
1) We must ________ more food for ourselves and import less.
2) Farmers brought their ________ to town early each Saturday morning.
3) The river has been polluted by waste ________ from the factory.
4) We will encourage the ___________ of excellent cultural works.
produce
produce
products
production
take … into account: to consider or include particular facts or details when making a decision or judgment about something 把……考虑进去
eg She seemed not to take the rising oil prices into account when buying a car.
Prepare for another talk about a “green truth” that is not true. Use the Internet or the library to help you.