资源简介

(共33张PPT)
Unit 8
Protecting the environment
Lesson 2 Look at the plastic!
能够读懂文章，了解塑料污染的现状、危害以及减少塑料使用的方法。
能够掌握本课时的单词、短语及句型。
能够表达自己对垃圾分类的看法，并且能够谈论在日常生活中减少塑料使用的方法。
2
1
3
学习目标
Lead in
The undersea world
新课讲授
A What plastic products do you see in your daily life
In my daily life, I see a variety of plastic products. For instance, plastic bags are commonly used for shopping, and plastic bottles are everywhere for holding water or other drinks.
B What can we do to avoid using too many plastic products
To avoid using too many plastic products, we can use reusable alternatives such as cloth bags for shopping, glass or stainless steel water bottles instead of plastic ones.
Think and talk about the questions with your partner.
Think and talk
Read the passage and write true (T) or false (F).
A Plastic waste can stay in the ground for years. （ ）
B We can’t use fewer plastic products because they provide convenience. （ ）
C This passage draws attention to plastic pollution. （ ）
Reading
In today’s world, plastic pollution is a global problem. Humans produce millions of tons of plastic every year. About half is for packaging goods. We use many plastic products only once or twice before they become waste.
Plastic pollution affects the natural beauty of the environment. Even worse, millions of animals are killed by plastic every year. Plastic will stay in the ground for years and pollute the soil, water, and plants. If our environment suffers, humans will do too.
Why can’t we just stop using plastic Think about drinking bottles and plastic bags. They are indeed easy to carry and cheap to buy. But they are not the only option! Bring your own shopping bag instead of using a plastic one. Carry a reusable water bottle. Choose products with less packaging. Learn to recycle plastic properly.
Let’s be part of the solution. Small changes in our daily habits will have a big impact on reducing plastic waste.
Read the passage and write true (T) or false (F).
A Plastic waste can stay in the ground for years. （ ）
B We can’t use fewer plastic products because they provide convenience. （ ）
C This passage draws attention to plastic pollution. （ ）
T
F
T
Read the passage again and complete the table.
Paragraph 1 global plastic pollution Human __________ millions of tons of plastic every day.
About _________ is for packaging goods.
Paragraph 2 harm of plastic pollution It _________ animals and _________ the soil and water. If our environment __________, humans will do too.
produce
half
kills
pollutes
suffers
Paragraph 3 ways to reduce our use of plastic products bring your ________ shopping bag. Carry a ________water bottle. Choose __________ with less packaging. Learn to recycle ________ properly.
Paragraph 4 small changes, big impact Let’s be ________ of the solution.
own
reusable
products
part
plastic
解题策略
段落定位法
明确图表每个部分对应原文的段落，先锁定对应段落再找答案。例如，Paragraph 1的答案一定在第一段，在第一段中我们可以找到“Humans produce millions of tons of plastic every year. About half is for packaging goods.”，从而确定这两个空分别填produce 和half。
Work in pairs. Discuss the following questions with your partner.
A How do you sort the waste
·vegetable leaves ·fruit peels ·waste paper ·medicine
·plastic bottles ·used batteries ·paint pots
B Do you think it is important to sort waste Why or why not
C What can we do to reduce the amount of waste
Speaking
1. What can we do to avoid using too many plastic products 我们可以做些什么来避免使用过多的塑料制品
(1)avoid v. 避开；躲避
avoid doing sth. 避免做某事
Language points
e.g. I left early to avoid the rush hour.
我早早动身以避开交通高峰期。
(2) too many 太多
too many 是形容词短语，作定语修饰可数名词复数。
e.g. I have too many books to read.
我有太多书要读。
[辨析]
too many，too much 与 much too
too many “太多”，形容词短语，修饰可数名词复数
too much “太多”，作形容词短语时，常修饰不可数名词，置于名词前；作副词短语时，修饰动词，置于动词后
much too “太”，副词短语，修饰形容词或副词原级，表示程度
[助记]
too many、too much 与 much too 的用法：
too much，much too，用法区别看后头。
much 后接不可数，too 后则接形或副。
too many 要记住，后面名词必复数。
2. Humans produce millions of tons of plastic every year.
人类每年生产数百万吨塑料。
(1) produce v. 生产；制造
product n. 产品；结果
production n. 生产；产量
e.g. The factory produces cars. 这家工厂生产汽车。
They put a new product on the market.
他们向市场推出了一款新产品。
Thousands of men were employed in the production of cars.
成千上万的人被雇来生产汽车。
(2) ton n. 吨；大量；许多
ton 作可数名词，意为“吨”。
tons of 意为“大量，许多”，后接不可数名词或可数名词复数，相当于a lot of 或lots of。
e.g. An elephant weighs about several tons.
一头大象重达几吨。
I have tons of work to do before the deadline.
在截止日期之前，我有很多工作要做。
Trucks can carry many tons of goods.
卡车可以运载很多吨货物。
3. We use many plastic products only once or twice before they become waste. 许多塑料制品在成为废物之前，我们只使用过一两次。
(1)become v. 变得；成为
e.g. Our country is becoming stronger and stronger.
我们的国家正变得越来越强大。
[辨析]
become，get，grow，turn 与 go
become “变得；成为”，相当于 be，强调状态的变化和外貌的变化，后接名词或形容词
get “变得；变成”，强调逐渐变得的结果，后接形容词，主语多是天气等
grow 逐渐变得；逐渐成为”强调渐渐地变为后接形容词、动词不定式，主语多是人或动、植物
turn “转变，变”，表示成为和从前完全不同的东西，常与表示颜色和天气方面的形容词连用
go “变化”，一般指进入不好的状态
(2)waste ①n. 垃圾；浪费
It’s a waste of time doing sth. 做某事是浪费时间
e.g. It is a waste of time discussing the problem with him over
and over again.
和他一遍又一遍地讨论这个问题是浪费时间。
waste ②v. 浪费
常见搭配：waste time (in) doing sth. 浪费时间做某事
waste sth. on sth. 在某方面浪费某物
e.g. Don’t waste your time on computer games!
别把时间浪费在电脑游戏上!
4. Even worse，millions of animals are killed by plastic every year.
更糟糕的是，每年有数百万动物因塑料而死。
kill v. 导致死亡；杀死；破坏
e.g. In the past, some people killed tigers for money.
过去，一些人为了钱而捕杀老虎。
拓展：killer n. 导致死亡的人 (或动物、事物)；杀手
e.g. Heart disease is the biggest killer .
心脏病是头号杀手。
5. Plastic will stay in the ground for years and pollute the soil, water, and plants. 塑料会在地里存留多年，污染土壤、水和植物。
pollute v. 污染；弄脏
e.g. Your car will pollute less if you drive slowly.
慢速驾驶能减少汽车污染。
pollute... with/by... 用······污染······
e.g. The factory has been polluting the river with chemical waste.
这家工厂一直在用化学废物污染这条河。
The environment is being polluted by excessive use of plastic.
环境正因过度使用塑料而受到污染。
6. If our environment suffers, humans will do too.
如果我们的环境受到损害，人类也将受到损害。
suffer v.变差；遭受；受苦
常用搭配：suffer from 表示“遭受或患有某种疾病、疼痛或不适”
suffer for 表示“因某原因而受苦”
suffer through 表示“痛苦地度过、忍受或经历某事或 某个时期”
e.g. Many people suffer from allergies during spring.
许多人在春天患有过敏。
She had to suffer for her mistakes and learn from them.
她必须为自己的错误受苦，并从中吸取教训。
They suffered through the long winter without enough food.
他们在没有足够食物的情况下熬过漫长的冬天。
7. Carry a reusable water bottle. 带一个可重复使用的水瓶。
reusable adj.可再次使用的；可重复使用的
e.g. He bought a reusable plastic container.
他买了一个可重复使用的塑料容器。
These reusable bags are very convenient for shopping.
这些可重复使用的袋子对购物来说非常方便。
[拓展]
① reuse v. 再次使用；重复使用；重新利用
e.g. We should encourage people to reuse plastic items to protect
the environment.
为了保护环境，我们应该鼓励人们重新利用塑料制品。
②前缀 re-表示“再，又，重新”，其构成的常见动词还有：
write — rewrite (重写)
build — rebuild (重建)
play — replay (重放，重播)
8. Let’s be part of the solution. 让我们成为解决方案的一部分。
solution n. 解决办法；溶液
e.g. Make sure the letter is properly addressed.
一定要正确书写信上的地址。
a/the solution to… ……的解决办法
e.g. I think I have a solution to the problem.
我认为我有解决这个问题的办法。
拓展：solve v. 解决
e.g. He tried his best to solve the problem.
他尽了最大努力解决这个问题。
9. Small changes in our daily habits will have a big impact on reducing plastic waste. 我们常习惯中的小小改变将对减少塑料垃圾产生巨大的影响。
habit n. 习惯；习性
good/bad habits 好/坏习惯
out of habit 出于习惯
get into the habit of... 养成······的习惯
get out of the habit of... 改掉······的习惯
e.g. Running in the morning is a good habit.
晨跑是一个好习惯。
She has got into the habit of washing her hands as soon as she gets home.
她养成了一回家就洗手的习惯。
10. Small changes in our daily habits will have a big impact on reducing plastic waste.我们常习惯中的小小改变将对减少塑料垃圾产生巨大的影响。
(1) have a(n) impact on 意为“对……有很大影响”。
have a(n)... impact on 中的 impact 是名词，意为“巨大影响”，impact 前可用 great、big、good、bad、no 等词来限定，相当于 have a(n)...influence on.
have a great/big impact on... 对······有巨大的影响
have a good/bad impact on... 对······有好的坏的影响
have no impact on... 对······没有影响
e.g. The computer has had a big impact on us.
计算机对我们产生了巨大的影响。
His father has no impact on him.
他的父亲对他没有影响。
e.g.We have reduced the price by 10 percent.
我们已经把价格降低了 10%。
The number of employees was reduced from 40 to 25.
雇员人数从 40 减少到了 25.
(2) reduce v. 减少；降低
reduce 作及物动词，后接名词或代词作宾语。
常见搭配： reduce... by... 把……减少了……
reduce... (from...) to... 把……(从······)减少到……
e.g.Recycling will help reduce a lot of waste.
回收利用将有助于减少大量垃圾。
11. What can we do to reduce the amount of waste 我们可以做些什么来减少垃圾的数量
the amount of... ······的数量
the amount of... 中的 amount 是名词，意为“数量”。
the amount of... 后接不可数名词，当该结构作主语时，谓语动词要用单数形式。
e.g.The amount of rain this month is small.
这个月的降雨量很少。
The amount of sugar in this drink is too high for my taste.
这杯饮料里的糖对我来说太多了。
Fill in the blanks with the proper words.
1. The home environment can _______ a child’s behaviour.
2. The doctor can give you some medicine to _________ the pain.
3. It’s important to express our feelings _________.
4. It is a _________ of time to play computer games.
5. These goods are __________ and nice.
6. Mining would ___________ the lake.
7. I have a new _____________ to the problem.
当堂检测
impact
reduce
properly
waste
cheap
pollute
solution
Homework
Remember the language points in this lesson.
Preview the next lesson.

展开更多......

收起↑