《We're trying to save the earth!》PPT课件8

情境引入 Leading-in

1 a. Look at the following pictures.

Here are some words related to different kinds of pollution. What pollutions are they ?

1c Role-play the following conversation and make your own conversations about the kinds of pollution above.

A: The river was dirty. Even the    bottom of the river is full of rubbish.

B: But it used to be so clean.

A: Yes, but people are littering in the river.

B: Everyone in the town should play a part in cleaning it up.

... ... ...

1b.Listen and complete the sentences 

What was the problem? 

The river was _______.Even the bottom of the river was full of ______.There were no more ____ for fishermen to catch.

What caused the problem?

People are throwing _____ into the river. Factories are putting _____ into the river .

How should be the problem be solved ?

We should write to the _________ and ask them to __________ the factories. Everyone should help to ______ the river .

... ... ...

2a Listen to the interview .Circle the kinds of pollution that Jason and Susan talk about 

A land pollution B air pollution C noise pollution D water pollution 

2b 1The air is badly polluted because there are ________ on the road these days .

2 Factories that burn coal also ______ the air with a lot of black smoke.

3 There is also too much rubbish and waste .People ___________ things every day.

4 People are also littering in _________ like parks. This is turning beautiful places into ugly ones 

《We're trying to save the earth!》PPT课件7 Read the passage about sharks and complete the fact sheet below. Points in Para 1 hear of 听说 shark fin soup 鱼翅汤 in southe..

《We're trying to save the earth!》PPT课件6 How do you feel? Saving endangered animals is one thing we can do for our world. What else can we do to help save the planet? ..

《We're trying to save the earth!》PPT课件5 Grammar Focus Pay attention to the sentences. 1. Were trying to save the earth. 2. The river used to be so clean. 3. The air i..

What is happening to the earth? 

Why should we try to save it?

the polluted river

the foggy sky

the dying soil

the noisy street /square…

... ... ...

What should we do to save the earth?

1.We should tell the people who drive to drive less. 

2.We should tell the factories which produce the waste gas and water to produce less.

3.We should tell ourselves not to litter in the river.

4.We should tell ourselves to use shopping bags that we  are  carrying when we’re shopping.

5.Maybe we should write to the newspapers ,magazines   or the government for help.

6.Maybe we are able to use the internet for fighting with    the pollution as well.

Though I always feel our voice is too weak to be heard. I still believe it’s a good idea to do something to help save our earth.

《We're trying to save the earth!》PPT课件7 Read the passage about sharks and complete the fact sheet below. Points in Para 1 hear of 听说 shark fin soup 鱼翅汤 in southe..

《We're trying to save the earth!》PPT课件6 How do you feel? Saving endangered animals is one thing we can do for our world. What else can we do to help save the planet? ..

《We're trying to save the earth!》PPT课件5 Grammar Focus Pay attention to the sentences. 1. Were trying to save the earth. 2. The river used to be so clean. 3. The air i..

Fill in the blanks with the correct forms of the verbs in brackets.

Joe: _____ you ever _____ (take) part in an environmental project?

Ken: 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?

Ken: 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.

Ken: Yes, we can't affort to _____ (wait) any longer to take action!

... ... ...

现在进行时

（1）含义：①表示现在正在进行的动作。②表示现阶段一直进行的动作。          

（2）基本结构：am/ is/are + 现在分词

（3）标志词：now, right now, Look, Listen at present, this week, these days

（4）现在分词的构成：

①一般情况下在动词词尾加-ing。如：go--going。

②以不发音的字母e结尾的动词，去掉e加-ing。如: have--having。

③以一个辅音字母结尾的重读闭音节，双写最后一个字母，再加-ing。如：stop--stopping。

... ... ...

现在完成时

（1）含义：

①表示过去发生的动作，对现在造成的影响。

②表示过去发生的动作或存在的状态一直延续到现在，还可能继续下去。

（2）基本结构：have / has + 过去分词

（3）标志词：already, yet, ever, never, once, twice, recently, so far, 

for+时间段,        since+时间点/从句，

in the past + 时间名词，    

in the last +时间名词。

（4）过去分词的构成：

①一般情况下在动词词尾加-ed。如：work--worked。

②以e结尾的动词后只加-d。如：close--closed。

③以辅音字母+y结尾的动词，应将y改为i再加ed。如：study--studied。

④以重读闭音节结尾的动词，要双写末尾的辅音字母再加-ed。如：stop--stopped。

⑤不规则动词的过去分词：AAA型；AAB型；ABA型；ABB型；ABC型。 

... ... ...

初中阶段我们学习了8种被动结构，归纳如下：

（1）一般现在时的被动式：am / is / are + 过去分词

（2）现在完成时的被动式：have / has + been + 过去分词

（3）现在进行时的被动式：am/ is/ are + being + 过去分词

（4）一般过去时的被动式：was / were + 过去分词

（5）过去进行时的被动式：was / were + being + 过去分词

（6）过去完成时的被动式：had + been + 过去分词

（7）一般将来时的被动式：will / be going to be+ 过去分词

（8）含有情态动词的被动式：情态动词+be +动词的过去分词。

... ... ...

情态动词练习

1.-- ____ you pass me a pen? I'd like to write down the phone number.

-- Sure. Here it is.

A.Can     B.Need       C.Might      D.Must

2. -- May I go to the cinema, Mum?

-- Certainly, but you ___ be back by 11 o'clock.

 A.can     B.may         C.must        D. need

3. you ___ worry about me. It's nothing serious.

A.can't   B.mustn't    C. needn't   D. won't

4. -- Excause me. Is this the right way to the Summer Palace?

-- Sorry, I'm not sure. but it ____ be.

A.might             B.mustn't                                

C.can't               D.must

5. The man in the office ____ be Mr.Black, because he went home just now.

A.musn't            B.may not  

C.can't               D.needn't

... ... ...

I. 用所给词的适当形式填空。

1. The old man used _____ (be) a teacher. 

2. We should _____ (clean) the room every day. 

3. Look! Tom _________ (sleep) in his room. 

4. Lots of trees __________ (plant) on the hill every year. 

5. He _________ (live) here for 20 years. 

用括号里所给动词的正确形式填空

1. The girl ___________(dance) in the classroom.

2. It's 5 o'clock now. Mike _________ (have)dinner.

3. --_____ you ever ____ (be) to the US?

-- Yes, twice.

4. -- May I speak to John?

-- Sorry, he __________(go) to New York. he will be back in two days.

5. --Did you go to Jack's birthday?

-- No,I ______________(not invite).

... ... ...

Fill in the blanks with the appropriate modal verbs from the box.

can      could      would      have to should      must      may/might

People _____ think that big things _____ be done. However, 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 paper or reusable bags instead of plastic bags. 

Homework 

write an article to show in what way we students can protect the environment.

《We're trying to save the earth!》PPT课件7 Read the passage about sharks and complete the fact sheet below. Points in Para 1 hear of 听说 shark fin soup 鱼翅汤 in southe..

《We're trying to save the earth!》PPT课件6 How do you feel? Saving endangered animals is one thing we can do for our world. What else can we do to help save the planet? ..

《We're trying to save the earth!》PPT课件5 Grammar Focus Pay attention to the sentences. 1. Were trying to save the earth. 2. The river used to be so clean. 3. The air i..

Discussion 

What should we do to help save the earth?

Turn off the lights when we leave a room.

Take our own bags when shopping.

Ride a bike.

Recycle paper.

Don’t use paper napkins.

... ... ...

What should government do to help save the earth?

They should close down the factories that put waste into the river.

Set up a lot of dustbins on the street.

Stop people from using wooden chopsticks,plastic bowls and bags.

Organize people to clean up the streets and rivers.

... ... ...

3b  Write a letter to the city major about the problem and your suggestions.

In your letter, describe the environmental problems in your town/city 

① What are the problems?

② Where are they?

③ What or who is causing these problems?

Then, give suggestions or possible ways to solve the problems.

I think that…

We should/ could…

I suggest…

... ... ...

1. My alarm clock doesn’t work. It needs ______.    

A. to be repairedB. repair

C. to repairD. for repairing

2. His death was _____ by a high fever. 

A. spread   B. caused    C. got    D. showed 

3. His mother ____ a worker in that factory. 

A. used to be            B. used

C. used to beingD. used be 

4. —Your classroom is very clean.

—Sure. It ________ after school every day.

A. is cleaned      B. cleans 

C. cleaned         D. is cleaning

... ... ...

Homework 

1. Write a letter to the local goverment, raise the environmental problem and try to think out possible solutions .

2. 背诵2b. 

《We're trying to save the earth!》PPT课件7 Read the passage about sharks and complete the fact sheet below. Points in Para 1 hear of 听说 shark fin soup 鱼翅汤 in southe..

《We're trying to save the earth!》PPT课件6 How do you feel? Saving endangered animals is one thing we can do for our world. What else can we do to help save the planet? ..

《We're trying to save the earth!》PPT课件5 Grammar Focus Pay attention to the sentences. 1. Were trying to save the earth. 2. The river used to be so clean. 3. The air i..

Grammar Focus

Pay attention to the sentences.

1. We’re trying to save the earth.

2. The river used to be so clean.

3. The air is badly polluted.

4. No scientific studies have shown that shark fins are good for health.

5. We should help save the sharks.

现在进行时: Present Progressive

定义：表示说话时(瞬间)正在进行的动作, 也表示目前或现阶段正在进行的动作。 

结构:  be (am/is/are) + v.-ing

标志词：Look, Listen, now, right now…

e.g. Look! The boy is crying.

... ... ...

Exercise

What a fine day today! 

Look! What are they doing?

used to do与be used to doing

used to do sth. 表示过去常常做某事, 而现 在往往不做了, 后接动词原形。

be used to doing sth.  表示习惯于做某事

e.g. I used to get up at six o’clock.

Joe is used to drinking a cup of coffee every morning.

... ... ...

Translation.

1. 她过去常常周末和朋友闲逛。

She used to hang out with friends on weekends.

2. 他习惯于每天晚上睡得很晚。

He is used to staying up.

被动语态：Passive voice

定义：表示主语是动作的承受者，即行为动作的对象的一种语态。

结构：be + 过去分词

e.g. A new school was built last year. 

Our classroom is cleaned every day.

... ... ...

1. 情态动词本身有一定的词义, 表示说话人的情绪、态度或语气, 但不能单独作谓语, 只能与其他动词构成谓语。常见的有: can (could), may (might), must, need, shall (should), will (would)等。

2. 情态动词无人称和数的变化, 后接动词原形。否定式是在情态动词后面加not。个别情态动词有过去式形式, 可用来表达更加客气、委婉的语气。

e.g. Ken can climb up the tress like a  koala.

Tracy could ride a bicycle when she was five years old.

You mustn’t play with fire. It is dangerous.

... ... ...

Make a list of things that people can do to help the environment and discuss your list with your partner.

use public transportation (n.交通运输);

turn off the lights when you leave a room;

use reusable bags instead of plastic bags;

ride your bike or walk to school or work;

stop using paper napkins(餐巾纸);

recycle books and paper

... ... ...

Homework

Write 5 measures to protect the environment.

《We're trying to save the earth!》PPT课件7 Read the passage about sharks and complete the fact sheet below. Points in Para 1 hear of 听说 shark fin soup 鱼翅汤 in southe..

《We're trying to save the earth!》PPT课件6 How do you feel? Saving endangered animals is one thing we can do for our world. What else can we do to help save the planet? ..

《We're trying to save the earth!》PPT课件4 Discussion What should we do to help save the earth? Turn off the lights when we leave a room. Take our own bags when shopping..

How do you feel?

Saving endangered animals is one thing we can do for our world. 

What else can we do to help save the planet?

Noise pollution:

loud music, planes, building houses, mobile phones (machines, crowds, vehicles)

Air pollution:

cars, factories, smoking, building houses (burning, power plants, nuclear disposal)

Water pollution:

rubbish, littering, ships, factories (sewage, industrial waste, pesticides)

... ... ...

Listen and complete the sentences.

What was the problem?

The river was __________. Even the bottom of the river was full of _______. There were no more _____ for fishermen to catch.

What caused the problem?

People are throwing ________ into the river.

Factories are polluting ______ into the river.

How should the problem be solved?

We should write to the __________ and ask them to __________ the factories. Everyone should help to ________ the river.

... ... ...

Listen again and complete the sentences.

Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.

A. land pollution     B. air pollution 

C. noise pollution    D. water pollution

1.The air is badly polluted because there are __________ on the road these days.

2.Factories that burn coal also _______ the air with a lot of black smoke.

3.There is also too much rubbish and waste. People ________________ things everyday.

4.People are also littering in ____________ like parks. This is turning beautiful places into ugly ones.

... ... ...

Language points

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

Every student should try to study hard in order to study in a university.

为了进入大学学习，每个学生都应该努力学习。

2. Here are some words related to different kinds of pollution.

be related to  与…有关

I am not related to him in any way. 

我和他无任何关系。 

... ... ...

你想要做什么？

1. What are you trying to do?

他在工作中其重要作用。

2. He plays an important part in the work.

这些问题都是密切相关的。

3. These problems are closely related.

Review

1. try to do =try one’s best to do 

2. be related to

3. play a part in 

4. litter & rubbish

Homework

1. Write a short passage about how to protect our environment.

2. Preview the new words and expressions.

3. Preview the article on page 99.

《We're trying to save the earth!》PPT课件7 Read the passage about sharks and complete the fact sheet below. Points in Para 1 hear of 听说 shark fin soup 鱼翅汤 in southe..

《We're trying to save the earth!》PPT课件5 Grammar Focus Pay attention to the sentences. 1. Were trying to save the earth. 2. The river used to be so clean. 3. The air i..

《We're trying to save the earth!》PPT课件4 Discussion What should we do to help save the earth? Turn off the lights when we leave a room. Take our own bags when shopping..

 Read the passage about sharks  and complete the fact sheet below.

Points in Para 1

hear of 听说

shark fin soup 鱼翅汤

in southern China= in the south of China 在中国南部地区

each time 每当…

a bowl of …一碗……

Many have heard of shark fin soup. This famous and expensive dish is especially popular in southern China. But do you realize that you’re killing a whole shark each time you enjoy a bowl of shark fin soup?

Many have 听说 鱼翅汤. This famous and expensive dish is especially popular 在中国的南部地区. But do you realize that you’re killing a whole shark 每当 you enjoy 一碗 shark fin soup?

... ... ...

Points in Para2

endangered 濒临灭绝的

in fact 实际上

catch-caught-caught

industry 工业，产业，行业

fall-fell-fallen 

over 90 percent 超过百分之九十

in the last 20 to 30 years 在过去的20到30年里  （用现在完成时）

... ... ...

language points

harmful 形容词，意为“有害的”。常构成短语

be harmful to “对……有害的”。

Staying up often is harmful to your health. 经常熬夜对你的健康有害。

harm 名词，意为“害处”。常用构成短语

do harm to “对……有害”，相当于be harmful to. 

Too much smoking does harm to his health. = Too much smoking is harmful to his health. 吸烟过多对他的健康有害。

... ... ...

Will you join us in the discussion? 

你参加我们的讨论吗？ 

She joined the Young Pioneers. 

她加入了少先队。 

Why didn't you join in the talk last night?

昨晚你为什么没参加座谈？

Did you take part in the sports meet? 

你参加运动会了吗？

1. —Have you _____ a club? 

—Yes, I’m in a swimming club and I often _____ the swimming training. 

A. joined; take part in    B. joined; join 

C. taken part in; join    D. taken part in; join in 

2. —We’re going for a picnic. Would you like to____ us? 

—Why not? Let’s go! 

A. attendB. join   C. join inD. take part in 

... ... ...

Read the passage again and fill in the blanks with the words in the box.

so       although

if        but              when 

1. Many people do not realize they are killing a whole shark _____they enjoy a bowl of shark’s fin soup.

2. Sharks are at the top of the food chain,  ______if their numbersdrop, the ocean’s ecosystem will be in danger.

3.Many think that sharks are too strong to be  endangered, _________ they are wrong. 

4._________there are no scientific studies to support this, a lot of people believe that shark fins are good for health. 

5. Sharks may disappear one day ______ we do not do something to stop the sale of shark fins.

... ... ...

III. 根据汉语提示完成句子。

1. 我们必须采取行动来阻止他们。

We must _____ ______ to stop them. 

2. 我从没听说过这个人。

I have never ____ ____ such a man. 

3. 我们乐意尽力帮你摆脱困境。

We are glad to do what we can do ___ ___ ___.

4. 到目前为止，我已经交了二十个朋友。

____ ____, I have made twenty friends. 

5. 实际上，她从没去过那儿。

____ ____, she has never been there.  

《We're trying to save the earth!》PPT课件6 How do you feel? Saving endangered animals is one thing we can do for our world. What else can we do to help save the planet? ..

《We're trying to save the earth!》PPT课件5 Grammar Focus Pay attention to the sentences. 1. Were trying to save the earth. 2. The river used to be so clean. 3. The air i..

《We're trying to save the earth!》PPT课件4 Discussion What should we do to help save the earth? Turn off the lights when we leave a room. Take our own bags when shopping..

the earth song by Michael Jackson !!!

We are harming our planet in so many ways.

The factories that burn coal pollute the air with a lot of black smoke. 

mobile phone pollution

litter  v. 乱扔  n. 垃圾

rubbish waste

垃圾，废弃物

People should throw away litter in the bin.

There are more cars on the road.

... ... ...

Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.

loud music   cars     rubbish     planes

littering        ships   factories   smoking

building houses       mobile phones

noise pollution     air pollution      water pollution 

loud music           factories           ships

planes                  smoking           rubbish

mobile phones     cars                  littering

building houses   building houses  factories

... ... ...

Listen and complete the sentences.

What was the problem?

The river was _____________. Even the bottom (底部) of the river was full of _________. There were no more ______ for fishermen (渔民) to catch.

What caused the problem?

People are throwing _______ into the river. Factories are putting ______ into the river.

How should the problem be solved?

We should write to the _________ and ask them to _________ the factories. Everyone should help to _______ the river.

... ... ...

Listen again and check (√) the sentences you hear.

1. We could go fishing in the river.

2. The river was really dirty.

3. The river has always been the nicest river in this town.

4. We should ask the teachers for help.

Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.

A. land pollution      B. air pollution

C. noise pollution     D. water pollution

Listen again and complete the sentences.

1. The air is badly polluted because there are _______ on the road these days.

2. Factories that burn coal also ______ the air with a lot of black smoke.

3. There is also too much rubbish and waste. People ________ things every day.

4. People are also littering in ________ like parks. This is turning beautiful places into ugly (丑陋) ones. 

Listen and answer the questions.

1. Who is the interviewer talking to?

Susan and Jason.

2. What are they talking about?

The environmental problems.

3. What other problems do they see?

There’s too much rubbish and waste in the streets.

... ... ...

Role- play the conversation

Jason and Susan, what are your ideas for solving these problems?

Well, to cut down air pollution, we should take the bus or subway instead of driving.

Yeah, or ride a bike. There are other advantages (优点) of bike riding. It’s good for health and it doesn’t cost (花费) anything!

... ... ...

Homework

1. Copy the new words and remember them. 

2. Read the listening materials of 1b, 2a.

《We're trying to save the earth!》PPT课件12 ◆单词过关 一、词义助记。 1．煤；煤块 coal 2.外卖食物 takeaway 3．垃圾箱 bin 4.鲨鱼 shark 5．(鱼)鳍 fin 6．链子；链条chain 7..

《We're trying to save the earth!》PPT课件11 Revision 1. 停止乘小汽车 stop riding in cars 2. 回收纸 recycle paper 3. 用纸巾 use paper napkins 4. 好好利用 put to good use ..

《We're trying to save the earth!》PPT课件10 Warming up How can we do to help save the earth? Dont use paper napkins. You can help reduce pollution by putting that soda c..