外研版(2019)必修第二册Unit 6 Earth First Developing ideas What’s really green课文详解课件(共22张PPT)

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外研版(2019)必修第二册Unit 6 Earth First Developing ideas What’s really green课文详解课件(共22张PPT)

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(共22张PPT)
Unit 6
What's really green
What’s green lifestyle How much do you know about green lifestyle
Resource conservation and pollution reduction 节约资源,减少污染;
Green consumption and green purchase绿色消费,环保选购;
Repeated use重复使用,多次利用;
Recycling分类回收,循环再生;
Look at the questions about “green living” and tick your answers.
1. Which shopping bag is more environmentally friendly
□ A plastic塑料的 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.
拔掉……的电源插头
plug n. (电)插头
v. 用插头接通电源
关掉
turn on
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.
What’s really green
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.
Read the passage and check your answers.
1Most of us are aware that we must take care of the environment, and the majority of us take steps to save energy and reduce waste and pollution. But recently, some “green truths” have been shown to be only half true, or even completely false. Here are some common ones. Which are really green
意识到
环境
多数
take steps/measures to do sth.采取措施做某事
减少
完全地
错的
常见的
Paper shopping bags are better than plastic ones.
2Plastic bags cause litter and are a danger to wild animals, which mistake them for food. It takes hundreds of years for plastic to break down, but much less time for paper. Because of this, people think paper bags are the better environmental choice.
垃圾
把…错当成…
It takes some time for sb./sth.to do sth.
做某事花费某人/物一些时间
分解
环保的,环境的
3However, 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.
4In fact, both kinds of bags are bad for the environment. So, take a reusable bag with you when you go shopping.
倍数
像..一样多
多达
a large amount of 许多
=large amounts of 许多
a number of许多
the number of...的数量
过程
产生
对…有害
be good for
When you turn off a device, it stops using power.
5When 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. This happens because electricity continues to leak from the device, even when it is turned “off”. To make sure your appliance is in fact off, remove the plug from its power supply.
备用的
模式
待机模式


确保
家用电器
供应
Eating local food is good for the environment.
6It seems like common sense: eating local food? should be better for the environment, because it does not need to be transported long distances and kept cold during transport. Unfortunately, it is not that simple. It is the production of food, not its transport, that uses most of the energy and produces most of the greenhouse gases.
常识
运输
距离
生产过程
气体
v. 生产
n. 农产品
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.
在某些情况下
take...into account
把…考虑进去
It's better to take a shower than a bath.
7It 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. Therefore, the key is to keep your shower time as short as possible.
8Environmental awareness is now part of daily life. But it’s worth checking common ideas and opinions to see what’s really green.
as...as possible尽可能...
be worth doing sth.某事值得被做
动名词的主动形式表示被动含义
Conclusion
Introduction
Body
green
truth 1
green
truth 2
green
truth 3
green
truth 4
Paper bags are not good for the environment.
Turning off a device won’t stop it from using power.
Eating local food isn’t better for environment.
It’s not always better to take a shower than a bath.
1.According to common truth, what should we take when shopping
A.a plastic bag B.a paper bag
C.a reusable bag D.a cheap bag
2. What should you do to save energy when leaving your home
A. Turn off a device.
B. Use older device.
C. Unplug a device.
D. None of these.
3.Why do people prefer to eat local food
A.Because it can save the energy used to transport.
B.Because it tastes better than the food transported long away.
C.Because its production uses less energy.
D.Because it produces less greenhouse gas.
4.According to the passage, when should you take a shower
A.Anytime you like.
B.When you spend less than 8 minutes in a shower.
C.When your bath is quite large.
D.When you use about 50 litres of water.
5. Which of the following is really green according to the passage
A. Use paper bags when shopping.
B. Turn off a device when leaving your home.
C. Eat local food instead of that from a long distance.
D. Keep your shower time as short as possible.
6.Why does the writer write the passage
A.He wants to introduce some new ways to save energy.
B.He wants to correct the false green truths and show really green ones.
C.He wants to call on more people to protect the environment.
D.He wants to explain the importance of energy saving.
Thank you.

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