外研版（2019）必修 第二册Unit 6 Earth first Developing ideas课件（共38张PPT）

(共38张PPT)
Unit 6
Earth first
Are you an environmentalist
What are some of the things around you that are not green
What can we do about green
FREE TALK
Look at the questions about “green living” and tick your answers.
Look at the questions about “green living” and tick your answers.
Let’s learn more about green living.
Read the four subheadings in the passage and decide if they are true or false.
Vocabulary
1. majority
major adj. 主要的，大的 v. 主修
minority n. 少数;少数民族
a/the majority of= most of 大多数……
the majority 大众,大多数人
be in the majority 占多数
练习：With the prices going up, the majority of people _________ (find) it hard to live on the amount of money they get now.
find
Vocabulary
2. break
break out (疾病、战争、火灾等 )爆发;突然发生
break up 打碎;分裂,解体;结束;(关系等)破裂
break into 破门而入;强行闯入;突然开始(笑、唱)等
break in 破门而入;打断;插话
break through 突围;突破
break of 折断;突然中止;断开;中断
break away from 脱离
练习：Our car broke ________ on the way and what was worse, it was getting dark.
down
Vocabulary
3. amount
a large amount of 后接不可数名词(多接不可数名词)
large amounts of 后接不可数名词(多接不可数名词)
no amount of 即使再大(或再多)的……(不)
any amount of 无数的,大量的
练习：A large amount of water _________ (waste) every day.
is wasted
Vocabulary
4. remove
remove...from... 把……从……移开/撤掉；从……移走……
remove from...to... 从……搬到……
remove one's doubt 消除某人的疑虑
remove sb. from one's post/position 撤某人的职；开除某人
remove sb. from school 把某人从学校开除；勒令某人退学
练习：Three workers ____________ (remove) from the company for bad behavior yesterday.
were removed
Vocabulary
5. campaign
run/conduct/carry out a campaign 开展一场运动
launch a campaign 发起一场运动
a campaign to do sth. 为做某事而进行的运动
a campaign for/against 争取/反对······的运动
an anti-smoking campaign 反对吸烟的运动
an advertising campaign 广告宣传活动
a national/nationwide campaign 全国性的运动
练习：Today the police launched _________ campaign to reduce road accidents.
Vocabulary
6. urge
urgency n.紧急，紧迫
urgent adj.紧急的；急切的
urge...on 为……加油；激励……
urge sb.to do sth. 敦促/力劝某人做某事
urge that...(should)do sth. 极力主张……做某事
It is urged that...(should)do sth. 坚决要求……做某事
feel/have the urge to do sth. 感到/有做某事的冲动
练习：Our teacher urges us _________ (study) hard with the College Entrance Examination drawing near.
to study
Vocabulary
7. concerned
concern v. (使)担忧;涉及;与……有关
concerning prep.关于;涉及
be/feel concerned about/for 对……关切的;对……担忧的
be concerned in... 牵扯进/参与……
be concerned with 与……有关;涉及
as/so far as...be concerned 就……而言，对……来说
练习：Nowadays more and more people are concerned _________ their health.
about/for
Vocabulary
8. average
on average 平均起来，一般来说
above/below average 高于/低于平均水平
up to the average 达到平均水平
an average of 平均有……
the average of... ……的平均数
练习：The car is running at _________ average speed of 50 kilometres an hour.
an
Read the four subheadings in the passage and decide if they are true or false.
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 the passage about
It mainly talk about the
_________________.
green truths
1. Paper shopping bags are better
than plastic ones
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. The process also produces more greenhouse gases.
__________
2. When you turn off a device, it
stops using power
When we turn off a device, such as
television, it goes into stand-by mode. Devices in this mode still use power, and older devices in stand-by mode can use even more.
__________
3. Eating local food is good for the
environment
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.
__________
It all depends.
4. When you turn off a device, it stops
using power
It depends on how long you spend in the shower and how large your bath is. 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.
__________
It all depends.
Read the effects and complete the causes of these according to the passage.
Devices turned off go into stand-by mode and still use power.
Read the effects and complete the causes of these according to the passage.
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.
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.
Which of the “green truths” surprises you most Give your reasons.
Are you aware of any other “green truths” that are not true Share them with the class.
How “green” are you Share your “green actions” with the class.
What can you do to become “greener”
Think & share
How to be greener
Find alternatives to driving.
Take public transportation. Use your local bus, subway or train instead of driving where you need to go.
Save electricity.
Turn off and unplug appliances and electronics when you aren't using them.
How to be greener
Don't use toxic chemicals.
Use natural versions of shampoos, conditioners and other body products.
Make less waste.
Buy goods without a lot of packaging.Recycle and reuse as often as possible.
1 Use these questions to help plan your talk.
Work in groups.
Give a talk about one of the “green truths” in the passage.
Which “green truth” are you 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.
Work in groups.
Give a talk about one of the “green truths” in the passage.
Read the letter and answer the questions.
1 What is the purpose of the letter
The purpose of this letter is to call on everyone to take part in the Clear Your Plate campaign.
2 What is the existing problem
Over 30% of the world’s food is wasted, while many people in poor areas do not have enough to eat.
3 What are the proposed actions from Class 8
Do not order more than you need in the school canteen; order less and take leftover food home when dining in restaurants; call on family members and friends to take part in the campaign.
Format (格式)
1. Salutation (称呼)
2. Body (正文)
3. Closing (结束语)
4. Signature (落款)
Work in groups. Discuss another environmental issue about which to write a persuasive letter and make notes.
写作步骤：
开门见山，说明写信的目的，提出发现的问题。
分析问题并找到问题产生的原因。
提出劝告，通过提建议让对方明确行动的方向。
Dear Friends,
We are writing this letter to raise your awareness of the need to protect our planet. You can help simply by participating in the No Bottled Water campaign.
People tend to think bottled water is cleaner and more convenient. However, they may not know that according to scientific research, millions of tons of plastic are used worldwide to make water bottles each year. The plastic can take hundreds of years to break down.
If you are worried about the effects of bottled water on the Earth, we would like to suggest you take the following steps.
sample
1 Carry your water in a sustainable, reusable bottle. In this way, you don’t need to buy bottled water.
2 If you have to purchase a plastic bottled beverage, recycle the bottle after use.
3 Call on your family members and friends to take part in this campaign.
Everyone is responsible for making our planet cleaner and better by doing what we can. Let’s start NOW.
With best wishes,
Class 11
sample
Work in groups.
Look at the three items that contribute to a carbon footprint.
Add any more you can think of.
Create a carbon footprint survey.
Think of two questions and possible answers for each topic.
Give each answer a score from 1 (a low carbon footprint) to 3 (a high carbon footprint).
Carry out the survey and use the results to come up with ways to reduce carbon footprint.
Report the results of your survey and your ideas to the class. Use the expressions in the box to help you.
Exercise
1. _________ my point of view, what interests me most is the unique architecture in this city.
2.You must spare some time to relax yourself both physically and _________ (mental), though you are very busy.
3.Libraries will often hold reading group sessions, which ____________ (target) at various age groups.
4.It is very difficult for the plastic bags to break _________ in the soil.
5.Hannah travels the world giving presentations and talks, getting more people _________ (involve) in the conservation of ocean life.
From
mentally
are targeted
down
involved
Exercise
6.In the darkness, he suddenly found himself _____________ (surround) by a pack of wolves.
7.The best way to keep yourself _________ (inform) of the latest news is to turn on your mobile phone for 24 hours.
8.With all the vehicles _________ (restrict) to the city, people had to call off their travel plans.
9.Years later, he returned to his hometown. ____________ (fortunate), his parents had passed away.
10.Your attitude _________ life determines your level of happiness.
surrounded
informed
restricted
to/towards
Unfortunately
Complete your composition.
Review the language points and complete the exercises.
Homework
See you next class!