仁爱英语九年级上册Unit 2 Topic 1 SectionA(1a2) 教学设计.doc

1、Unit 2 Saving the EarthTopic 1 Pollution has caused too many problems. Section A (1a-2). Material analysis本课是九年级第二单元第一话题的第一课时。主活动是围绕过去和现在环境的变化展开听说训练。1a通过关于“West Hill”今昔环境变化的对话，引出本话题的污染问题，巩固现在完成时与一般过去时的用法及区别。1b要求学生能够听懂一般过去时态和现在完成时态，也就是要分清1b所提及的词语所伴随的时间。1c要求学生补全描述“West Hill”今昔变化的句子并进行内容复述，即整合1a对话的信息，将

2、对话转换为语篇。2通过观察图片内容，结对编对话，描述污染前后的情况，进一步训练学生口头表达能力和对一般过去时和现在完成时的运用能力。.Teaching aims1. Knowledge aims： 掌握本课的重点词汇、短语和句型；巩固一般过去时和现在完成时的用法和区别。能够用一般过去时和现在完成时描述过去和现在的变化。正确使用there be sth./sb. doing sth.来表达“有某人/物正在做某事”。2. Skill aims: 能运用一般过去时和现在完成时围绕“环境变化”话题展开简单的听、说、读、写活动。3. Emotional aims: 让学生了解环境污染的严重性，并树立环保

3、意识。4. Culture awareness: 通过课文的学习，让学生了解环境的变化，关注全球的环境问题。. The key points and difficult points1. Key points: Words and phrases: bee, butterfly, mess, shame, several, waste, pour, see sb./sth. doing sth., pourinto,villager, destroy,cut down, polluteSentences: What a mess! / What a shame! The flowers and

4、 grass have gone! What has happened here?There be sth./sb. doing sth. There are several factories pouring waste water into the stream.Everything has changed. Grammar: Differences between Simple Past and Present Perfect tense. 2. Difficult points：能正确以口头和书面形式区别使用一般过去时和现在完成时。正确使用there be sth./sb. doing

5、 sth.来表达“有某人/物正在做某事”。. Learning strategies 通过呈现情景的方式进行词汇或句型教学，让学生在情境中理解并学会运用； 通过学习1a和2，引导学生模仿已有对话，编写新的对话； 通过完成1c，培养学生整合对话信息，将对话转换为语篇的能力。. Teaching aids录音机，幻灯片，黑板等。. Teaching procedures Step 1 Review(5 min)Have a quick review of Unit 1 by inviting some Ss to report their discovery on the changes in o

6、ur hometown. T: Good morning, boys and girls. In Unit 1, we have learned the topic about The Changing World. And your homework last week was to find out the great changes in our hometown these years. Here are the photos you have found about the changes. Good job! Now Id like to invite some of you to

7、 tell us the changes in your pictures. Who would like to have a try?Ss: T: Well done. Thank you very much.Remarks:回顾第一单元，请学生谈论他们收集的家乡今昔变化的图片，复习一般过去时和现在完成时，在真实的语言环境中运用英语，激发学生学习的兴趣。Step 2 Lead-in (5 mins)1. Show some pictures about pollution and introduce the topic of Unit 2.T: Im glad that you have f

8、ound out so many great changes in our hometown. These changes are good. However, some other changes are not. Let me show you some pictures. What can you see in these pictures?Ss: T: It is good that we have more factories, more cars, more buildings, but it is bad that we also have more air pollution,

9、 water pollution, light pollution, noise pollution and so on. Pollution has caused many problems. Our changing world is in danger, so we have to save it. Today, we will move on to a new unit, Unit 2 Saving the Earth. Topic 1 Pollution has caused so many problems. 2. Watch a short video about polluti

10、on and ask the Ss to talk about the video.T: Before learning Section A, Id like you to watch a short video and find out what has happened to Lucys hometown.T: OK, now tell me what has happened to Lucys hometown. Ss: T: Yes, Lucys hometown has changed a lot because of pollution. Pollution has destroy

11、ed the village. Now Id like to show you another example of the West Hill.Remarks:通过图片从谈论发展变化（好的变化）过渡到环境变化（坏的变化），自然地导入第二单元的话题“环境污染”。接着通过观看视频，让学生直观感受污染给环境造成的破坏。 Step 3.Pre-listening (8 mins)Present two pictures of the West Hill and help the Ss describe the changes. Teach the new words and some difficu

12、lt sentences. (Show the picture of the West Hill to the Ss on PPT)T: Kangkang and his friends are going to have a picnic in the West Hill. Is the West Hill beautiful? Look at the picture.What can you see in the picture?S1: I can see a big tree(Point to the tree.) S2: I can see some flowers and grass

13、. (Point to the flowers and grass.)T: Can you see the bees and butterflies dancing there. (Point to the bees and butterflies, and then write down the words and phrases on the Bb/show them on the screen.)Ss: Yes.T: What else can you see?S4:I can see a rabbit. S5:I can see a river.T: Right. You can al

14、so say “stream”, a stream is a small river. What else can you see?S6:T: Right. The West Hill was a beautiful place. But it has changed a lot. Look at this picture. What a mess! What can you see in the picture now?S7: I can see the dirty water.S8: I can see some dead fish.T: Right. What has happened?

15、 Can you see the flowers and grass?Ss: No.T: The flowers and grass have gone! “Have gone” means “have disappeared”. (Point to the factories)Look! There are several chemical factories pouring waste water into the stream. Everything has changed. (Point to the several chemical factories, and then write

16、 down the words“several, chemical, waste” and sentences“There be.doing sth.”,“What a mess!” on the Bb/show them on the screen.)Remarks: 通过图片谈论西山被污染前后的状况，更好的体会一般过去时和现在完成时在语境中的运用，同时也突破了单词关。在教授新单词时,同时呈现单词和音标，让学生运用所学音标自己解决单词的读音问题，如果学生发音不准，老师再及时更正。根据图片和讲解，引导学生大胆的猜测词义和部分难句的意思，为1a中的听力对话扫障碍。Step 4. While-li

17、stening (10 mins)1. Ask the Ss to listen to 1a once and answer some questions. T: Listen to the tape carefully and try to find out the answers to the following questions. (1)When did Kangkang go to the West Hill? (2)Why does Kangkang say “What a mess!”? (3)Do they still want to have a picnic there?T

18、: Now answer my questions. (1)When did Kangkang go to the West Hill?Ss: Two years ago.T: (2)Why does Kangkang say “What a mess!” ?Ss: Because the beautiful West Hill has gone. It isn t beautiful now.T: (3)Do they still want to have a picnic there ?Ss: Of course not.2. Ask the Ss to mark the words wi

19、th P (Past) or N (Now) in 1b.T: Now mark the words with P(past) or N(now) in 1b and check the answers in your group.S1: “Beautiful” is in the past.S2: “Butterflies” are in the past.S3: “Dirty” is now.3. Have the Ss listen to 1a again and pay attention to the pronunciation and the intonation. Then pr

20、actice 1a in groups and role play it.T: Watch the video and pay attention to the pronunciation and intonation.T: Now read 1a aloud with your group members and act it out.T: Who would like to be Jane?.Ss:Remarks: 本课对话不长，词汇量不大，可以直接在组内核对习题答案。让学生通过朗读的方式感知一般过去时和现在完成时的差别。分角色朗读是培养语感，增强自信，提高兴趣的基本方法之一。Step 5

21、. Post-listening (13 mins)1. Have the Ss work in pairs. Look at the pictures and make up conversations with their partner.T: Look at the pictures and make up conversations in pairs like this:Example:A: There were lots of flowers and grass when I visited the village last year.B: But now the flowers a

22、nd grass have gone.A: What a shame! What has happened here?B: The villagers have destroyed them.T: Now Id like to invite two pairs to have a try.Ss:2. Have the Ss read through 1a and fill in the blanks in 1c in groups.T: Read through 1a and fill in the blanks in 1c as quickly as possible, and then d

23、iscuss the answers with your group members. T: Now check the answers together.S1: a beautiful placeS2: lots of flowers and grassS3: 3. Have the Ss retell 1a to their partner.T: Try to retell 1a to your partner. You can use the pictures and the key words.Example: In the past, the West Hill was a beau

24、tiful place with flowers and grass. We could see bees and butterflies dancing. The air was fresh, the water was very clean and we could see fish swimming. But now, all the flowers, grass, bees, butterflies and fish have gone. The water is so dirty and it smells terrible. Why? Because there are sever

25、al chemical factories pouring waste water into the stream. Pollution has destroyed the West Hill, so we should protect the environment.Remarks: 通过学习1a，引导学生模仿已有对话，编写新的对话；接着要求学生根据1a的内容补全句子并在此基础上进行复述，培养学生整合对话信息，将对话转换为语篇的能力。通过Post-listening这个环节，帮助学生进一步巩固和运用本课所学词汇、句型和语法，兼顾了语言输入和输出，进一步发展了学生的口语能力。Step 6 Su

26、mmarizing. (3 mins)Sum up the main content of this class and the key pointsT: Lets sum up what we have learned today. We learn some new words, phrases and sentences. Please repeat after me: bee, butterfly, stream, mess, shame, several, pour, waste; see sb. doing sth., pourinto; There are/isdoing. No

27、w we can express our strong feelings, such as “What a mess!”, “What a shame!” We can also know the differences between Simple Past and Present Perfect tense. For example, “It was a beautiful place.” “Everything has changed.” Step 7 Assigning homework. (1 mins)1. Practice 1a with your partner.2. Rete

28、ll 1a and write down the changes in the West Hill.3. Talk about how many kinds of pollution you know and make a list. Blackboard designPollution has caused too many problems.Section A(1a-1c)Words and phrase:bee,butterfly,stream,mess, shame,several,waste, see sb./sth. doing sth.,pour sth. into, villager,destroy, cut down, polluteSentences:What a mess! / What a shame!The flowers and grass have gone!What has happened here?There are several factories pouring waste water into the stream.