初中英语仁爱科普版九年级上册Topic 3 What can we do to protect the environment?教案

Stage

(time period)

Interaction

patterns

Teacher activity

Student activity

Remarks

1

Revision

(10 mins)

Individual work

Individual work

Class activity

Step 1: Encourage the Ss to read their homework assigned in Section C.

T: Hi, boys and girls! Let’s begin our class with your homework. Who would like to share your homework? xxx, how about you?

Step2: Let the Ss complete the blanks in Grammar and Functions.

T: Wow, very good writing! Now please open your book and turn to page 49. Please fill in the blanks in Grammar and Functions. When you finish, raise your hand.

T: Now, xxx, will you please tell us your the answers to Grammar?

T: Do you think so, class?

T: Who would like to share your the answers to Functions?

T: Is she right?

Step3: Let the Ss sum up the compound sentences and expressions of giving suggestions.

T: In this topic, we have learned compound sentences and giving suggestions. Now, let’s sum up. Could you tell me the conjunctions used to combine compound sentences?

T: Wonderful! You can name so many conjunctions. I hope you will remember them and use them in writing and speaking. Next, let’s sum up expressions of giving suggestions. What do you usually use to give suggestions?

Read their passages assigned in Section C

S1: Wind can produce a lot of energy.

People use wind to travel on the sea. They put a large piece of cloth on the boat, and then the wind will make the boat move. In the north part of China, in the countryside, farmers usually use wind to clean their corns. In spring, children use wind to fly their kites. People also use wind to produce power. Now, there are many countries building wind power stations.

S2: Sunlight can produce a lot of energy. …

S3: Waves can produce a lot of energy…

S4: …

Complete Grammar and Functions

S1: Ok. And, while, or, but.

Ss: Yes.

S2:Greener, shut off, easier, louder, reach.

Ss: Yes.

Sum up the compound sentences and expressions of giving suggestions.

S1: and, but, while ,or

S2: however, so

S3: not only… but also, after all

S4: for, since, as

S5: besides, what’s more, what’s worse

S6: should, shouldn’t, must…

S7: had better, had better not, don’t…

S8: ought to…

2

Pre-reading

(10 mins)

Class activity

Step 1: Present a short video about the Amazon rainforests to learn some new words and lead to 1a.

T: What do people call the Amazon rainforests?

T: Yes. Do you know why people call it like this?

T: So it does. It removes carbon dioxide and makes oxygen. Do you want to live there?

T: No? Why?

T: What you said is right. There are many kinds of insects there. If they bite you, you may lose your life.

Step2: Present another short video about the destruction of the rainforests to lead to the necessity of planting trees.

T: What have you seen?

T: Yes, in order to get money or farmland, people cut down the trees in the rainforests. As a result, the world climate may change and many birds and animals may be in danger. Luckily, many people have taken measures to do something. The volunteer planters around the world are planting new trees to replace destroyed area.

Learn some new words and lead to 1a

Ss:地球之肺。

Ss:因为它吸收了大量的二氧化碳并释放氧气。

Ss: No.

S1:太潮湿了。

S2: 有各种各样的有毒生物。如：蛇，蜘蛛等等。

Learn about the destruction of the rainforests to lead to the necessity of planting trees.

Ss: 大量的雨林被毁掉了。

最好是播放一小段亚马孙热带雨林的视频，图片没有震撼力。

3

While-reading

 (6 mins)

Individual work

Let the Ss read 1a and answer the questions on page 50.

T: Have you ever planted trees in the mountains?

T: Now just imagine what problems you may have if you are one of the planters.

T: If you want to know what difficulties the volunteers have to face, then read the passage. But before reading, please read the questions on page50 and try to find the answers to Q1 to Q3. When you finish, please raise your hand.

T: xxx, have you found the answer to Q1?

T: Good job! Q2, how about you, xxx?

T: Yes. Q3, who knows?

Read 1a and answer the questions on page 50.

Ss: No.

S1: Very tired.

S2: Very hungry.

S3: 很渴。

S4: …

S5: Forests remove carbon dioxide and make oxygen, like the lungs of human beings.

S6: Bad weather, insects, dangerous.

S7:For birds and animals.

让学生先读P50的问题，带着问题阅读效率更高。

4

Post-reading

(10 mins)

Individual work

Group work

Step1: Let the Ss read the passage, and find the compound sentences and other difficult points.

T: You have learned the main content of the passage. Next, we’ll solve the difficult points. Now, read the passage again, and find the difficult points as well as compound sentences. If you finish, put up your hand.

T: First, let’s check the compound sentences. xxx, have you found some yet?

T: Well done! Who has any questions?

T: …

T: …

T: Attention please! In English, we can’t use “though/ even though” and “but” at the same time. So you can’t see the word “but” in “Even though tree planting is very difficult, they love their work”. Besides, sometimes we use “while” to make up an adverbial clause of time. For example, the sentence “There are often…and faces while they work.”

Step2: Let the Ss discuss Q4 and Q5.

T: We haven’t finished the questions on page 50. Now, discuss Q4 and 5, and then make a report.

T: Group 1, what are your ideas about Q4?

T: What you said is absolutely right. Then, would you like to be a tree planter when you grow up?

T: That sounds wonderful.

Read the passage, and find the compound sentences and other difficult points.

S1: Yes. The weather may be very hot and dry or it may be very cold and wet.

S2: They carry heavy bags of small trees, and working in the mountains can be dangerous.

S3: What does “were cut down” in Para1 mean?

S4: How to understand the word“that”in the sentence“There are often many insects that…they work”?

Discuss Q4 and Q5.

S1: If we don’t plant new trees, the forests will become smaller and smaller. Without trees, the wind and the water will take the earth away, and the oxygen in the air will become less and less.

S2:If we don’t plant new trees,…

S3: Maybe, it’s hard to say. I think the companies and government should do something. Because, I have no time and I have to work to make money. I think on Tree-Planting Day, everyone should stop working and go to plant trees in the mountains.

S4: …

对于文章中的过去时的被动语态和定语从句，只要学生理解意思即可，不要讲太多。老师也可以用汉语解释更节约时间。

老师要提醒学生though, even though 与but 不能同时连用。也要讲一下，当“while”表示“当…..的时候”连接的是时间状语从句，不是并列句。

5

Finishing

project

(7 mins)

Group work

Group work

Step1: Let the Ss complete the questionnaire in Project, and add up the total scores.

T: Do you think you are a greener person? Now, answer the questions in Project, and add up the total scores, and then see how green you are. If you finish, put up your hand.

Step 2: Let the Ss compare their scores with their group members and find the greenest and give reasons.

T: Now compare your result with your group members’ and find who is the greenest in your group. When you are reporting, you should tell us why he is the greenest .

T: Are you ready to report?

T: OK. Group 2, who is the greenest in your group?

Complete the questionnaire in Project and add up the total scores.

Compare their scores with their group members and find the greenest and give reasons.

Ss: Yes.

S1: xxx is the greenest in our group. He often recycles newspapers and cans. He goes to school on foot. He never eats fast food and he always reuses plastic bags when shopping.

S2: xxx is the greenest in our group, because she…

6

Summarizing and assigning homework

(2 mins)

HMK

T: We have finished this topic. We have learned how to combine compound sentences and give suggestions. The most important thing is that we have learned how to be a greener person. I would like you to write a short passage with the title“How to be a greener person”after class.

What can we do at home to protect the environment?

Section D

Words and phrases:

dry

remove

replace

insect

bite

planter

Grammar:

1.compound sentences

Conjunctions：

and,while, or, but, not only…but also…

however, because, after all ,…

2.give suggestions

should,shouldn’t , ought to, had better, Don’t…, …

cut down

even though

Sentences:

The weather may be very hot and dry or it may be very cold and wet.

They carry heavy bags of small trees, and working in the mountains can be dangerous.

Even though tree planting is very difficult, they love their work.