内容正文:
Unit 13
Unit 13
We’re trying to save the earth!
We’re trying to save the earth!
Section A 2d
Learning objectives:
By the end of this class, we will be able to:
listen and repeat the conversation and read it the correctly and fluently.
listen to the interview and know Jason and Susan’s idea about solving the problems.
know “our actions can make a difference
and lead to better future!”
Step 1 revision
Do you still remember the interview?
The interviewer asked Jason and Susan some questions
about environmental problems.
Step 1 revision
What problems did they mention?
Jason thinks that the air is _____________.
Problem 1:
Causes:
1) There are _________ on the road.
2) Factories also _____________ with a lot of ___________.
badly polluted
more cars
pollute the air
black smoke
v. 污染 n.污染
Step 1 revision
What problems did they mention?
Susan thinks that there’s too much _______ and _____ in the streets.
Problem 2:
Causes:
1) People ________________ things like _______
(wood) chopsticks, plastic bowls and plastic bags.
2) People __________ in public places.
rubbish
are throwing away
v. 浪费 n.废弃物
waste
wooden
adj. 木制的
are littering
Did they talk about the solution?
n. 解决办法
v. solve 解决
solve the problem(解决问题)
In the first part of the interview, they didn’t talk about the solution.
Now, let’s listen to the second part of the interview!
Step 1 revision
Step 2 presentation
What are they talking about in the second part of the interview?
Jason and Susan, what are your ideas
for ____________________?
solving these problems
air pollution
waste pollution
There’s too much waste and rubbish in the streets.
The air is badly polluted.
Step 3 listen and answer
Ways to solve the air pollution:
We should ____________________
instead of driving.
We should __________.
take the bus or subway
ride a bike
It doesn’t cost anything.
It’s good for health.
Step 3 listen and answer
Ways to solve the waste pollution:
Simple things like ____________
to ___________ can help.
I never take ________________ or ___________ when I buy takeaway food.
_______________________ and keep public places _________
________ for everyone.
bringing a bag
go shopping
wooden chopsticks
plastic forks
Throw rubbish in the bins
clean and
beautiful
Step 4 listen and repeat
Interviewer: Jason and Susan, what are your ideas for solving these problems?
Jason: Well, to cut down air pollution, we should take the bus or
subway instead of driving.
Susan: Yeah, or ride a bike. There are other advantages of bike
riding . It’s good for health and it doesn’t cost anything!
Interviewer: Great ideas! What about waste pollution?
Susan: Mmm, I think simple things like bringing a bag to go shopping can help. I started doing that a year ago.
Jason: Me, too. Also, I never take wooden chopsticks or plastic forks when I buy takeaway food. I use the ones at home.
Susan: And remember to throw rubbish in the bins and keep public
places clean and beautiful for everyone.
Interviewer: So together, our actions can make a difference and lead to better future!
Step 5 try to recite
Interviewer: Jason and Susan, what are your ideas for solving these problems?
Jason: Well, to cut down air pollution, we should take the bus or
subway instead of driving.
Susan: Yeah, or ride a bike. There are other advantages of bike
riding . It’s good for health and it doesn’t cost anything!
Interviewer: Great ideas! What about waste pollution?
Susan: Mmm, I think simple things like bringing a bag to go shopping can help. I started doing that a year ago.
Jason: Me, too. Also, I never take wooden chopsticks or plastic forks when I buy takeaway food. I use the ones at home.
Susan: And remember to throw rubbish in the bins and keep public
places clean and beautiful for everyone.
Interviewer: So together, our actions can make a difference and lead to better future!
How many parts can the conversation be divided into?
Step 5 try to recite
Part 1 is about ________________________.
ways to solve the air pollution
Interviewer: Jason and Susan, what are your ideas for solving these problems?
Jason: Well, to cut down air pollution, we should take the bus or subway instead of driving.
Susan: Yeah, or ride a bike. There are other advantages of bike riding. It’s good for health and it doesn’t cost anything!
解决这些问题
减少
代替开车
其他好处
对健康有好处
不费事
Step 5 try to recite
Part 2 is about __________________________.
ways to solve the waste pollution
Susan: Mmm, I think simple things like bringing a bag to go shopping can help. I started doing that a year ago.
Jason: Me, too. Also, I never take wooden chopsticks or plastic forks when I buy takeaway food. I use the ones at home.
Susan: And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone.
简单的事情
开始那样做
木筷子
塑料叉子
外卖
记得...
垃圾扔进垃圾箱
保持公共场合干净美丽
Step 5 try to recite
Part 3 is about _________.
the ending
Interviewer: So together, our actions can make a difference and lead to better future!
make a difference
起作用 有影响
make a big difference
起很大作用 有很大影响
Listening to music could make a difference to children’s brain.
“导致 通往”
起作用
通往美好的未来
Step 6 key phrases
1.instead of driving
2. it doesn't cost anything
3. waste pollution
4. wooden chopstics
5. plastic forks
6. takeaway food
7. remember to do
8. make a difference to sb
9. lead to
1. 代替开车
2. 它不费事
3. 废品污染
4. 木筷子
5. 塑料叉子
6. 外卖
7. 记得去做某事
8. 对...有影响
9. 导致
Unit 13
Unit 13
We’re trying to save the earth!
We’re trying to save the earth!
Section A grammar
Step 1 grammar
We’re trying to save the earth. Present progressive
The river used to be so clean. used to
The air is badly polluted. Passive voice
No scientific studies have shown that shark are good for health. Present perfect
We should help save the sharks. Modal verbs
What's the key grammar in unit 13?
the revision of grammar
语法复习
Step 1 grammar
present progressive
现在进行时
1. 表示现在进行的动作或存在的状态。
动词形式:
am/is/are +doing
My mother is cooking Chinese food now.
2. 表示现阶段正在进行的动作。
Don’t be noisy. The baby is sleeping now.
3. 表示屡次发生的动作。
She is always losing her keys.
Step 1 grammar
used to do sth
过去常常做某事
I used to get up early in the morning.
我过去通常起得很早。
The pen is used to write.
use
v. 使用
use ... to do
使用...去做
We can use the pen to write.
我们可以用笔写字。
be used to do
被用来做某事
= be used for doing
=The pen is used for writing.
used to be ...
过去常常是...样
They used to be best friends.
Step 1 grammar
used to do sth
过去常常做某事
be used to sth ... 习惯某事
be used to doing sth 习惯做某事
eg: I’m used to the hot weather.
其他延伸:
= get used to doing
我习惯于热天气。
eg: I’m used to getting up early.
我习惯早起。
无be使用某事 to do ---- 使用
有be被动 to do ---- 被用来
无be被动 to do ----过去常常
有be习惯--to doing 习惯于做某事
use sth to do sth
be used to do
used to do sth
be used to doing
Step 1 grammar
passive voice
被动语态
动词形式:
am/is/are +动词过去分词
1. 被动语态表示“主语是动作的承受者”。
Many people speak Chinese.
Chinese is spoken by many people.
2. 什么时候用被动语态?
1)不知道或没有必要说明动作的执行者。
2)强调动作的承受者。
3)动作的执行者是没有生命的事物。
Step 1 grammar
present perfect
现在完成时
动词形式:
have/has +动词过去分词
1. 一个动作或状态发生并完成,且对现在造成的影响。
I have cleaned the room. (now: the room is clean)
2. 一个动作在过去发生,并一直持续到现在,还可能继续持续下去。
She has learned English for two years.
动词是延续性动词
Step 1 grammar
modal verbs
情态动词
1. 概念:本身具有词义,但不能独立做谓语,必须和实义动词一起构成组合谓语。
表示说话人对某一动作或状态的态度。
can 表示能力
could 表示过去的能力
may 表示允许或征求对方许可
might 表示推测 可能性较小
must 表示必须;应该
will 表示现在的意愿
would 表示过去的意愿
ought to 表示义务 责任
should 建议 劝告 命令
情态动词有词义 不能单独做谓语
变否定;+not 变疑问;往前提
后加动原要牢记
Step 2 4a Fill in the blanks with the correct forms of the verbs in brackets.
Joe: _____ you ever _____ (take) part in an environmental project ?
Eric: Yes, I have. I ______ (help) with a Clean-Up Day last year. It was __________ (consider) the biggest clean-up project this city ____ ever ____ (have).
Joe: How many people ____ (take) part?
Eric: I _____ (think) more than 1,000 people _____ (come) to help out.
Joe: That’s fantastic! I guess everyone in this city is ______ (try) to improve the environment.
Eric: Yes, we can’t afford to ____ (wait) any longer to take action!
Have
taken
helped
considered
had
had
took
think
came
trying
wait
Step 3 4b Fill in the blanks with the appropriate modal verbs from the box.
People ____ think that big things _____ be done to save the earth. Many forget that saving the earth begins with small things. For example, you _____ save electricity by turning off the lights when you leave a room. You _____ also use reusable bags instead of plastic bags. I think it’s a great idea that you now ______ pay for plastic bags in some stores. And instead of driving to school or work, you ____ ride your bike or walk. If it’s far, you _______ take the bus. All these small things ______ add up and become big things that ____ improve the environment. Let’s take actions now!
may
must
could
could
should
have to
can
can
would
can would could have to should must may/might
Step 4 4c Make a list of things that people can do to help the environment and discuss your list with your partner.
A: I think that everyone should use public transportation.
B: I disagree. It’s difficult for parents with young children to use public transportation ...
use public transportation
... ...
Thank You!
Other
61386.55
$