文档内容
Unit 13 We're trying to save the earth!
Section A 1a-2d 教学设计
Class Type
Listening and speaking
To talk about air pollution, water pollution and noise pollution.
Objectives To think about ways of protecting the environment.
To learn to use the sentence patterns:used to...but now; should do sth.
Period 1
Procedure
Watch a short video, and talk about what students think of our earth.
Lead-in
Presentation:Watch a short video and try to answer: Will it be so
beautiful in the future? From the video, let students know that the earth
is polluted.
Watch the third video and answer:What kind of pollution can you see in the video?
Do you know the different kinds of pollution?
water pollution
air pollution
pollution
noise pollution
land pollution
Lead students to talk about reasons caused four kinds of pollution above
by presenting pictures. And talk about the results of pollution.
Activity 1a: Here are some words related to different kinds of pollution.
Write them in the box below. Then add more words.
Listen and answer the question:
What kind of pollution are Tony and Mark talking about?
__________________
Activity 1b: Listen and complete the sentences.
Step 1
Listen again and answer the following questions.
1. What does Tony want to do later this afternoon?
2. Why doesn’t Mark want to go with Tony?
3. How was the river in the past?
Activity 1c: Role-play the conversation. Then make your own conversations
about the kinds of pollution in 1a.
Activity 2a: Listen to the interview. Circle the kinds of pollution that Jason
and Susan talk about.
Activity 2b: Listen again and complete the sentences.
Activity 2c: Use the information in 2a and 2b to role-play conversations
between Jason and Susan.
After listening, students think about what we should do to save the earth
by looking at some pictures carefully.
Activity 2d: Read the conversation and complete the chart.
Problems Solving problems
air pollutionwaste pollution
Then role-play the conversation.
Step 2 Summary:
1.We’re trying to save the earth!
我们正在竭尽全力拯救地球!
try to do = try one’s best to do 努力去做某事
e.g. We’ll try to help him with English this year.
我们今年将努力帮助他学习英语。
2. Everyone in this town should play a part in cleaning it up!
play a part in 在……方面起作用
Reading will play a large part in writing and speaking, so just read more in
your spare time.
阅读将在写作和口语汇中发挥很大作用， 所以业余时间你就大量读书
吧。
3. Even the bottom of the river was full of rubbish.
Yes, but people are throwing litter into the river.
litter和rubbish都可指“垃圾”，用作不可数名词。
litter指“（室内或公共场所）乱扔的废物（纸屑、不要的包装纸、废瓶
等）”还可回收。
rubbish指“没用的东西（被扔或将要丢弃的无用的东西）”不可回收。
e.g. Don’t worry, I will throw the rubbish out when I go home.
别担心，我回家时会把垃圾扔出去。
Your room is full of rubbish. How can you stand that?
你房间里堆满了垃圾。你怎么能够忍受？
Let’s pick up our litter after a picnic.
野餐后咱们将废弃物收拾好。
4. It’s good for health and it doesn’t cost anything!
cost v. 花费；使付出，指花费金钱，主语通常是物。cost的过去式和过
去分词均为cost。
e.g. The new shirt cost Mr Wang 200 yuan.
王先生花了200元买了新衬衫。
How much does your new computer cost?
你的新电脑花了多少钱？
take, spend, pay & cost
take，spend，pay和cost都可以表示“花费”，
但它们的用法各有不同。
take多表示花费时间
常用于It takes sb. some time to do sth.句型中，
其中it作形式主语。
e.g. It usually takes me 40 minutes to go to work on foot in the morning.
spend多表示花费时间和金钱，主语常是人，
常用于sb. spend(s) some time / money on sth.
sb. spend(s) some time / money (in) doing sth.
两种句型。
e.g. David spent 2,000 yuan on a watch.
My father spends an hour (in) playing games with my little brother every
day.
pay多表示花费金钱，主语通常是人，常用于sb.
pay(s) some money for sth.句型。
e.g. David paid 2,000 yuan for a watch.
cost多表示花费金钱，主语通常是物，常用于sth.
cost(s) (sb.) some money.句型。e.g. The new dress cost me 188 yuan.
根据句意用take, spend, pay或cost的适当形式填空。
1. That new car ________ them lots of money.
2. Mike __________ 50 yuan on these books just now.
3. It usually _______ us an hour to do homework every evening.
4. You should __________ some time learning English and math.
5. My brother _______ 6, 000 yuan for a second hand car last week.
5. So together, our actions can make a difference and lead to a better future!
make a difference (to…)
表示(对……)产生影响或作用
e.g. Learning English well can make a difference to your future.
学好英语会对你的前途有影响。
Exercises:
Ⅰ.根据句意，从方框中选择恰当的单词填空，有的需要变换形式。
bin, cost, coal, fisherman, take away
1. A hot ________ fell out of the fire and burnt the carpet (地毯).
2. A __________ is hot cooked food that you buy from a shop or restaurant
and eat somewhere else.
3. Do you want this or shall I throw it in the ________?
4. Writing such a long novel ________ much time and patience.
5. Look! Some ____________ are catching fish over there.
Ⅱ.根据汉语意思完成英语句子。
1. 工人们正在竭尽全力降低事故率。
The workers are doing all they can ___________ the accident rate.
2. 左边第二个房间里堆满了书。
The second room on the left is _________________books.
3. 你应该向那些参与挽救病人的医生道谢。
You should say thanks to those doctors who have _________________
saving the patient.
4. 拉里将去开会，而不是我。
Step 3
Larry will go to the meeting __________ me.
5. 我的目的是把这件坏事变成好事。
My purpose is to ________ this bad thing ________ a good one.
6. 保持教室干净是我们的责任。
It’s our duty to ________ the classroom_______.
7. 我们小区的噪音污染很严重。
The _________________ in our neighborhood is very serious.
Ⅲ.汉译英。
1. 我尽量今天晚上看完这本书。
2. 他在足球赛中其重要作用。
中考链接:
1. Many jobs require people who are good at English. If your English is good,
you will have one more ______ when searching for jobs.
method B. interest
C. advantage D. examination
2. —The teenagers clean up the city park every Saturday.
—Sometimes small things can make a _______.
A. promise B. conversation
C. difference D. discussionHomework:
Step 4
完成课前预习与课后跟踪练习。
