资源简介

(共25张PPT)
Protecting the environment
Unit 8
4 Global warming
Learning objectives
In this lesson, we will be able to:
Understand the concept of global warming, identify the main causes (such as burning fossil-fuels, deforestation and waste creation) and the serious effects through reading the passage.
Improve their reading comprehension skills by answering various questions related to the text about global warming. They will also enhance their critical-thinking ability by analyzing the relationship between human activities and environmental problems.
Develop an awareness of environmental protection and understand the importance of taking individual actions to slow down global warming, thus cultivating a sense of social responsibility for the environment.
1 Read the questions and give your answers.
A What problems do you think our environment is facing now
B Do you think these problems are related to human activities
2 Read the passage and write true (T) or false (F).
The earth is getting hotter. We call it global warming. What makes this happen People burn things like gas, oil, and coal. They cut down trees and create a lot of waste. These are major reasons for global warming.
Global warming affects everything on the planet. It’s like getting a fever. If we have a few degrees’ increase in body temperature, we feel sick. The same goes for our planet. The effects of global warming are serious. For example, the snow and ice in the North Pole are starting to melt. This causes the sea level to rise, which can lead to more floods and storms.
Thankfully, we can help slow down global warming by taking some simple actions. Instead of driving, we can choose to walk or bike. Turn off devices we aren't using like TVs and lights. Another great way to help is by planting trees in our community and doing other "green" activities. Just by making some small changes in our daily lives, we can play a role in addressing global warming.
2 Read the passage and write true (T) or false (F).
A Global warming is mainly caused by nature. （ ）
B Global warming affects everything on the planet. （ ）
C Planting trees is a great way to slow down global warming. （ ）
2 Read the passage and write true (T) or false (F).
F
T
T
Read Paragraph 1 and answer the question.
What are the main reasons for global warming
People burn things like gas, oil, and coal. They cut down trees and create a lot of waste.
Read Paragraph 2 and answer the questions.
1.What is happening to the North Pole because of global warming
The snow and ice are starting to melt.
2.What two kinds of natural disasters can happen because the sea level is rising
Floods and storms.
Read Paragraph 3 and answer the questions.
1.Which household devices are mentioned as examples of energy wasters
TVs and lights.
2.What outdoor activity helps absorb carbon dioxide
Planting trees.
3 Read the passage again and complete the mind map.
Burn things like____________________.
__________ down trees.
Create ________________.
The snow and ice in the North Pole _____________________.
The sea level is rising, which can lead to _______________________.
Choose to ________________ instead of driving.
Turn off ___________.
and do other “green” activities.
major
reasons
effects
solutions
Global warming
gas, oil, and coal
Cut
a lot of waste
are starting to melt
more floods and storms
walk or bike
devices
Plant trees
4 Is there anything you can do to slow down global warming Think and tick.
Use energy sources such as solar and wind power.
Let people around you know about the harm of global warming.
Take shorter showers to save water and energy used for heating the water.
Choose environmentally friendly products with less packaging.
Use things again or recycle them for other purposes.
Attend environmental clubs to learn more about the environment.
Try to eat less meat and more vegetables.
5 There are many other environmental problems. Think and write about one of them.
A What is the problem
B What do you think are the causes of this problem
C What are its effects
D What should we do to solve this problem
Show time
Checklist Stars
Language(语言正确)
Pronunciation(发音标准)
Body language(使用肢体语言)
Creation(有创意)
Excellent Great Good
Just by making some small changes in our daily lives, we can play a role in addressing global warming.
1. Do you think these problems are related to human activities
be related to意为 “与…… 有关；和…… 有联系”，用于说明事物之间的关联。
Point
例句：
His success is related to his hard work.
（他的成功和他的努力工作有关。 ）
These environmental problems are related to our daily behaviour.
（这些环境问题和我们的日常行为有关。 ）
burn 是动词，意为 “燃烧”；like 在这里是介词，意为 “像；诸如”，用来列举事物。
Point
例句：
In the past, people burnt things like wood to keep warm in winter.
（过去，人们在冬天燃烧像木头之类的东西来取暖。 ）
In some areas, they burn things like straw to deal with the waste.
（在一些地区，他们燃烧像稻草之类的东西来处理废弃物。 ）
2. People burn things like gas, oil, and coal.
3. They cut down trees and create a lot of waste.
cut down有 “砍伐；削减；降低” 等意思。在文中是 “砍伐” 树木的意思。
Point
用法：
后接名词或代词作宾语。
例句：
Don't cut down too many trees, or we'll lose our good environment.
（不要砍伐太多树木，否则我们会失去良好的环境。）
We should cut down our use of plastic bags to protect the earth.
（我们应该减少塑料袋的使用来保护地球。）
4. They cut down trees and create a lot of waste.
create意为 “创造；产生”；a lot of 意为 “许多”，可以修饰可数名词复数和不可数名词。
Point
例句：
Big factories often create a lot of waste.（大工厂经常产生大量废弃物。 ）
Our daily life also creates a lot of waste, such as paper and plastic bottles.（我们的日常生活也产生大量废弃物，比如纸张和塑料瓶。 ）
slow down意为“放慢，放缓”。
Point
讲解：
后接名词或代词作宾语，也可以不接宾语单独使用。
例句：
Slow down when you drive near schools.（在学校附近开车时要减速。 ）
We should take actions to slow down the process of global warming.
（我们应该采取行动减缓全球变暖的进程。 ）
5. We can help slow down global warming by taking some simple actions.
一、单项选择
People should stop ______ so many trees. It's bad for the environment.
A. putting on B. taking off C. cutting down D. getting up
2.We can play a role in ______ global warming by taking some simple actions.
A. slow down B. slowing down C. slow up D. slowing up
3.What makes the ice in the North Pole ______
A. melt B. melts C. melting D. to melt
4.Instead of ______ a car, he often walks to work.
A. drive B. drives C. driving D. to drive
C
B
A
C
二、英汉互译
树叶颜色的变化和季节更替有关。
2.砍伐树木是全球变暖的一个主要原因。
3.create a lot of waste
4.slow down
The colour change of leaves is related to the change of seasons.
Cutting down trees is a major cause of global warming.
产生大量废弃物
放慢；放缓
Required（必做）
Optional（选做）
Copy the key words that appear in the article, like burn, major, melt, address, instead of, cut down, create a lot of waste, 5 times each, and indicate the Chinese meaning next to it.
Find an English essay on environmental protection, read it and answer 3-5 relevant questions, such as the main points of the article, listed environmental problems and solutions, and write the answers in the workbook.

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