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Unit 2 Saving the Earth Topic1—Section D 教案 版本3 九年级英语上册 仁爱版

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Unit2 Topic1 SectionD 教学设计

. Material analysis

本课是第二单元第一话题的第四课时,主活动是1aProject。通过Grammar 来巩固总结一般过去时和现在完成时的区别,通过 Functions来复习重要的表达法。1a按照的模式分别介绍了各种污染的成因及危害。通过完成文章后的表格,训练和提高学生获取信息的能力。教师还可以利用表格内容,引导学生整合信息复述课文,巩固课文内容。1b属于同义转换练习Project部分培养学生动手动脑的能力,让学生运用收集的信息和所学知识,通过墙报的形式来宣传污染带来的危害,让更多的人关注环境污染,树立环保意识,增强人们的忧患意识社会责任感。

.Teaching aims

1.Knowledge aims 

掌握本课的重点词汇和短语。

总结一般过去时和现在完成时的区别;复习本话题的重点表达法

2.Skill aims:

能读懂与环境污染问题有关的文章。

能根据关键词复述课文。

3. Emotional aims: (optional)

  通过了解各种污染带来的危害,帮助学生树立环保意识,爱护环境保护地球。

4.Culture awareness: (optional)

通过学习,引导学生了解环境污染对人类健康有巨大的危害,不同种类的污染体现在不同的方面。

. The key points and difficult points

1. Key points:

Words and phrases: coal, create, blood, planet, in many ways, with the development of industry, high blood pressure

Grammar: the differences between the simple past and present perfect

2. Difficult points 

  能根据关键词复述课文。

  能够进行同义句转换,用不同的短语表达相同的意思。

. Learning strategies 

  能自己归纳总结所学的知识。

  学会利用关键词复述课文。

  学会运用所学知识,宣传生活中的常识。

. Teaching aids

与污染相关的图片;词性辨析的试题;幻灯片

. Teaching procedures

Stage

(time period)

Interaction

patterns

Teacher activity

Student activity

Remarks

1

Getting students ready for learning

5 mins)

Class activity

Step 1: Let the Ss fill in the blanks with the correct forms of the given words.

T: Hello, boys and girls. Please fill in the blanks with the correct forms of the given words.

1The man working in a _________ factory goes deaf because of the loud _______.(noise / noisy)

2Burning coal can _______ the air, and we call it air _______. (pollute / pollution)

3Using too many chemicals in the land can cause ________food and it’s bad for people’s ________. (health / healthy / unhealthy)

4Strong light is _______ to our eyes and does great _______ our body. (harm / harmful)

5Mrs. Zhou can hardly ________ because of the bad air. And she often coughs day and night, out of ________. (breath / breathe)

T: OK, now let’s check the answer.

Fill in the blanks with the correct forms of the given words.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S1: noisy and noise

S2: pollute and pollution

S3: unhealthy and health

S4: harmful and harm

S5: breathe and breath 

学生在做用所给单词的适当形式填空这种题型时,稍有困难。因此,教师要进行引导。先通过二选一的方式简化题目难度,再让学生体会到词性不同,用法也不同。

2

Lead-in  

(3 mins)

Group work

Let the Ss list what they have learnt in this topic with their group members, and then finish Grammar and Functions.

T: Wonderful! Now list what you have learnt in this topic with your group members, and then finish the Grammar and Functions.

T: If you have finished, hands up to let me know. OK, let’s check the answers.

List what they have learnt in this topic with their group members, then finish Grammar and Functions.

 

3

Pre-reading

 (5 mins)

Class activity

Check the Ss’ HMK and encourage the Ss to read their passages about pollution to the class.

T: Please take out your homework. I have checked your work. Most of you did very well. But a few students have to improve it. I believe you will be better next time. Now I want some Ss to share your work with us. Any volunteers?

S1: Water pollution is very serious and we can find it almost everywhere…

Read out their passages to the class.

 

4

While-reading

 (10 mins)

Individual work

 

 

 

 

 

 

 

 

Pair work

Step 1: Let the Ss scan 1a and find the main idea of this passage.

T: You are right. Pollution is harmful to people’s health. Now, please read 1a as quickly as you can and try to get the main idea of this passage.

T: OK. What is the passage about?

 

Step 2: Let the Ss read the passage again and work in pairs to complete the table on Page 34. Then check the answers in pairs.

T: Yes, please read the passage carefully and complete the table on Page 34. You can discuss the answers with your partner.

T: Let’s check the answers together.

Read 1a quickly and find the main idea of this passage.

 

 

 

 

Ss: The harm of different pollutions.

Read the passage again and work in pairs to complete the table on Page 34.

 

 

 

 

S1: gas, oil and coal

S2: sore eyes and breathing problems

S3: litter everywhere, use too many chemicals

S4…

 

 

建议:阅读部分可以采取两个步骤,一是泛读,二是精读。泛读让学生了解文章大意,精读可以让学生注意段落、语句之间的逻辑关系,培养学生写作思维能力。

 

5

Post-reading

 (10 mins)

Individual work

 

 

 

 

 

 

 

 

 

 

 

 

Individual work

Step 1: Let the Ss read the article sentence by sentence and find the key points they think. Write them down on the Bb and encourage the Ss to explain them.

T: Now read the article sentence by sentence, circle the key phrases you think and try to explain them in your own words.

T: Volunteers?

 

 

 

 

Step 2: Let the Ss finish 1b.

T: Very good. You learnt so well. Now please finish 1b yourselves.

T: OK, let’s check your answers together.

S1: are harmful

S2: hearing loss

S3: go, because of

T: Well done!

Read the article, circle the key points and try to explain them.

 

 

 

 

 

 

S1: “including” means “包括

S2: “with the increase in population” means “随着人口的增长

S3: …

Finish 1b according to the given sentences.

 

 

 

S1:are harmful

S2:hearing loss

S3:go, because of

做完阅读练习后,让学生自己划出文章中重要的词组、连词,并自己做出解释。这样可以帮助他们更好的理解所读和所学,并且利于复述课文。复述时可以选择用原文章中的短语,也鼓励学生自由发挥进行知识的再巩固。

6

Project

(12 mins)

Group work

Project: Let the Ss make a wall newspaper about pollution.

Step 1: Discuss what kinds of pollutions the pictures show and their bad effects.

T: Now, look at the pictures. What kind of pollution does each picture show?

S1: Water pollution.

S2: Soil pollution.

S3: Air pollution.

T: Right. We have learnt a lot about pollution in this topic. Now discuss the effects of the pollution in groups. You’d better write the information down.

S4: Water pollution is harmful to our health. We will have a stomachache if we drink the dirty water…

S5: Soil pollution will bring us unhealthy food. The food is bad for our body…

S6: If the air is polluted, it is bad for our lungs. We can hardly breathe…

Step 2: Collect more information and pictures about pollution. Then make a wall newspaper about pollution in groups.

T: Now you can ask two Ss to collect more information about pollution, the rest can begin to design your wall newspapers with words and pictures.

T: Now if you have finished, please stick it on the wall behind. Let’s choose the best one.

Let the Ss make a wall newspaper about pollution.

 

 

 

 

 

 

Project部分具体操作说明:

准备充分:在进行探究前,要做好充分的准备工作,有关污染危害方面的主题应该提前讨论完成。

分工明确:组内的六名成员要进行明确的分工合作,两名同学收集污染危害方面的案例,两名同学设计版面,另外两名同学负责画画等。

评价机制:墙报设计好后,教师要组织以小组为单位的作品评价,可以班级所有成员参与,用积分制的方法;也可以筹备一个专门的评委组进行评价。

展示环节:课后,教师可以对前三名的作品进行指导,在适当的修改后,可以在班级、校园或者社区的公示栏进行展出,真正发挥墙报的宣传作用,增强小组的凝聚力和集体荣誉感。

7

Summarizing and assigning homework

(3 mins)

 

HMK: Let the Ss go over what they have learnt about this topic. Summarize the key points on the exercise book. Encourage student A in each group to make new sentences with those key points.

T: We have finished Topic1. Now sum up the key points in this topic on your exercise book. Try to make new sentences if you can.

Go over this topic. Summarize the key points on the exercise book. Encourage student A in each group to make new sentences with those key points.

作业布置时,可以有两种或者三种层次,对组内A类生要有更高的要求,如果作业太简单,他们会失去挑战的兴趣。对组内的C类生,要降低难度,只要能很好的完成基本任务就行。

 

. Blackboard design

Pollution has caused too many problems.

Section D

Finish the exercises:

1The man working in a _________ factory goes deaf

because of the loud _______.(noise / noisy)

2Burning coal can _______ the air, and we call

it air _______. (pollute / pollution)

3Using too many chemicals in the land can cause

________food and it’s bad for people’s ________.

(health / healthy / unhealthy)

4Strong light is _______ to our eyes and does

great _______ our body. (harm / harmful)

5Mrs. Zhou can hardly ________ because of the dad air.

And she often coughs day and night, out of ________.

(breath / breathe)

New words and phrases:

coal

create

blood

planet

in many ways

with the development of industry

high blood pressure