仁愛版九年級(jí)英語(yǔ)上第二單元教案

1、Unit 2 Saving the EarthTopic 1 Pollution has caused too many problems.Section A. Material analysis本課是九年級(jí)第二單元第一話題的第一課時(shí)。主活動(dòng)是1a。1a通過(guò)對(duì)比“West Hill”今昔的環(huán)境變化，引出本話題的污染問題，鞏固現(xiàn)在完成時(shí)與一般過(guò)去時(shí)的用法及區(qū)別。1b要求學(xué)生能夠聽懂一般過(guò)去時(shí)態(tài)和現(xiàn)在完成時(shí)態(tài)，也就是要分清1b所提及的詞語(yǔ)所伴隨的時(shí)間。1c則是在閱讀之后再找出“西山”所發(fā)生的變化。2通過(guò)觀察圖片內(nèi)容，結(jié)對(duì)編對(duì)話，描述污染前后的情況，進(jìn)一步訓(xùn)練學(xué)生口頭表達(dá)能力和對(duì)一般過(guò)去時(shí)和現(xiàn)在完成

2、時(shí)的運(yùn)用能力。3通過(guò)聽并記錄“動(dòng)物的生存現(xiàn)狀”，了解環(huán)境污染帶給動(dòng)物的危害，繼續(xù)提高學(xué)生的聽力水平。任務(wù)4的口語(yǔ)表達(dá)，培養(yǎng)學(xué)生的說(shuō)的技能，檢測(cè)對(duì)本課的掌握情況。通過(guò)本課的學(xué)習(xí)，培養(yǎng)學(xué)生關(guān)注環(huán)境問題的意識(shí)。.Teaching aims1.Knowledge aims： 掌握本課的重點(diǎn)詞匯和短語(yǔ)，鞏固一般過(guò)去時(shí)和現(xiàn)在完成時(shí)的用法和區(qū)別。能夠用一般過(guò)去時(shí)和現(xiàn)在完成時(shí)描述過(guò)去和現(xiàn)在的變化。正確使用there be sth./sb. doing sth.來(lái)表達(dá)“有某人/物正在做某事”。2.Skill aims: 能聽懂描述環(huán)境變化的對(duì)話，區(qū)別一般過(guò)去時(shí)和現(xiàn)在完成時(shí)的用法。能理解和運(yùn)用一般過(guò)去時(shí)和現(xiàn)在完成

3、時(shí)來(lái)進(jìn)行聽、說(shuō)、讀、寫活動(dòng)。3.Emotional aims: (optional) 讓學(xué)生了解環(huán)境污染的嚴(yán)重性，并樹立環(huán)保意識(shí)。4. Culture awareness: (optional) 通過(guò)課文的學(xué)習(xí)，讓學(xué)生了解環(huán)境的變化，關(guān)注全球的環(huán)境問題。. The key points and difficult points1. Key points: Words and phrases: bee, butterfly, mess, shame, several, pollute, waste, villager, destroy, cut down, goodness, pour, see

4、 sb./sth. do sth., see sb./sth. doing sth., cut down, my goodnessSentences: What a shame! / What a mess! The flowers and 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 b

5、etween Simple Past and Present Perfect tense. 2. Difficult points： 正確使用there be sth./sb. doing sth.來(lái)表達(dá)“有某人/物正在做某事” 。 區(qū)別使用短語(yǔ)see sb./ sth. do sth.和 see sb. / sth. doing sth.。 能正確地以口頭和書面形式區(qū)別使用一般過(guò)去時(shí)和現(xiàn)在完成時(shí)。. Learning strategies 通過(guò)引導(dǎo)學(xué)生在聽前閱讀1b和3，培養(yǎng)學(xué)生形成聽前熟悉、預(yù)測(cè)聽力材料的習(xí)慣。 通過(guò)朗讀1a和2，引導(dǎo)學(xué)生模仿已有對(duì)話，編寫新的對(duì)話。 通過(guò)1c，培養(yǎng)學(xué)生整合

6、對(duì)話信息，將對(duì)話轉(zhuǎn)換為語(yǔ)篇的能力。. Teaching aids圖片（關(guān)于校園周邊環(huán)境變化對(duì)比圖或者影像資料），錄音機(jī)，幻燈片等。. Teaching procedures Stage(time period)InteractionpatternsTeacher activityStudent activityRemarks1Getting students ready for learning（1 min)Class activityGreet and talk about the weather. Lead the Ss to discuss the right place for a p

7、icnic.T: Hi, boys and girls! Its a nice day, isnt it?Ss: Yes.T: Would you like to have a picnic with me?Ss: Id like that./Sounds great.T: So where shall we go?Ss.Greet and focus their attention on the teacher.Ss: Yes.Ss: Id like that./Sounds great.Ss.通過(guò)談?wù)撎鞖猓ヒ按?，吸引學(xué)生的注意力，也符合課文主題，使學(xué)生專注于課堂。如果天氣不好，也可以做

8、好周末的野炊計(jì)劃。2Lead-in (3-5 mins)Group workLet the Ss discuss where to have a picnic. Encourage them to state the reasons.T: Now work in groups, choose the best place for a picnic and tell the class why you choose that place.SsT: OK, tell us where to have a picnic. Why?S1: I think is the best choice. The

9、 air there is fresh. We can fly kites on the grass.S2Discuss where to have a picnic and state the reasons.SsS1: I think is the best choice. The air there is fresh. We can fly kites on the grass.S2先讓學(xué)生討論出合適的野炊地點(diǎn)，老師再出示西山?jīng)]被污染的圖片來(lái)吸引學(xué)生的注意。當(dāng)學(xué)生興趣高漲時(shí)，又呈現(xiàn)被污染后的圖片，讓學(xué)生滿懷興趣和疑問去了解西山被污染前后的狀況，更好的體會(huì)一般過(guò)去時(shí)和現(xiàn)在完成時(shí)在語(yǔ)境中的運(yùn)

10、用，同時(shí)也突破了單詞關(guān)。3Pre-listening (5-7 mins)Class activityPresent two pictures of the West Hill and describe the changes. Teach the new words and some difficult sentences.(Show the old picture of the West Hill to the Ss)T: Look at this beautiful picture. Kangkang and his friends had a picnic there two year

11、s ago. Can you guess where it is?Ss: Yes, its the West Hill.T: What can you see in the picture?S1: Some flowers, a clean river and a big treeT: Right. The West Hill is a beautiful place. Can you see the bees and butterflies dancing there(Point to the bees and butterflies, and then write down the wor

12、ds and phrases on the Bb)T: So do you want to go there for a picnic?Ss: YesT: Id like to. But now it has changed a lot. Look at this picture. Do you like it?Ss: No.(Teacher presents the new words and difficult sentences through the description of the picture.)Watch the pictures of the West Hill, gue

13、ss the meaning and pronunciation of the words according to the introduction about the changes of the West Hill.Ss: Yes, its the West Hill.S1: Some flowers, a clean river and a big treeSs: YesSs: No.在教授新單詞時(shí)，老師應(yīng)當(dāng)同時(shí)呈現(xiàn)單詞和音標(biāo)，讓學(xué)生運(yùn)用所學(xué)音標(biāo)自己解決單詞的讀音問題，如果學(xué)生發(fā)音不準(zhǔn)，老師要及時(shí)更正。再根據(jù)圖片和講解，引導(dǎo)學(xué)生大膽的猜測(cè)詞義和部分難句的意思，為1a中的聽力對(duì)話掃障礙。

14、4While-listening (10 mins)Individual workGroup workStep 1: Let the Ss listen to 1a twice and do 1b alone.T: Listen to the tape carefully and try to mark the words with P or N.T: Now please check answers in your group.S1: “Beautiful” is in the past.S2:“Butterflies” are in the past.S3: “Dirty” is now.

15、Step 2: Let the Ss listen to 1a again and pay attention to the pronunciation and the intonation. Then practice 1a in groups and role play it.T: Read 1a with your group members and act it out.Listen and mark the words with P or N according to the tape. .S1: “Beautiful” is in the past.S2:“Butterflies”

16、 are in the past.S3:“Dirty” is now.Listen to 1a again and pay attention to the pronunciation and the intonation. Then practice 1a in groups and role play it.本課對(duì)話不長(zhǎng)，詞匯量不大，可以直接在組內(nèi)核對(duì)答案。如果對(duì)話較長(zhǎng)，難度較大，建議先聽兩遍后再讀，通過(guò)讀來(lái)檢查聽的結(jié)果。分角色朗讀是培養(yǎng)語(yǔ)感，增強(qiáng)自信，提高興趣的基本方法之一。讓學(xué)生通過(guò)讀的方式感知一般過(guò)去時(shí)和現(xiàn)在完成時(shí)的差別后，在2中馬上運(yùn)用，編寫新的對(duì)話，可以讓學(xué)生完整的體會(huì)兩種時(shí)態(tài)的

17、區(qū)別，也突破了本課的語(yǔ)法關(guān)。5Post-listening (20 mins)Group work Pair workIndividual work Step 1: Let the Ss read 1a aloud and fill the blanks in 1c in groups.T: Read 1a aloud and fill in the blanks in 1c as quickly as possible, and then discuss the answer with your group members.T: Now check the answer together.S

18、1: a beautiful placeS2: lost of flowers and grassS3: Step2: Let the Ss observe the pictures and study the example in 2 and try to make new dialogs according to the pictures and the given words. Then act out the dialogs.T: Now study the example in 2 and try to make new dialogs with their partners acc

19、ording to the pictures and the given words. Then act out the dialogs.T: OK, who can try?S1: There were many trees when I visited the hill last year.S2: But now the trees have gone.S1: What has happened here?S2: The farmers have cut them down.Step 3: Lead the Ss to look at the pictures and listen to

20、the sentences once to number them. Then listen to them twice to complete the sentences.T: Look at these pictures in 3, listen and number them.T: OK, now check the answers together. The right order isT: Well done. Now listen again and fill in the blanks in 3. When listening, you can only write the fi

21、rst two letters of each word or the first word of each phrase. After finishing listening, you have some time to complete your answers. Ready?T: OK. Now you have one minute to complete the sentence. Pay attention to the form of verbs.T: OK, time is up. Lets check the answers.S1: People have cut down

22、too many trees.S2: many trees.S3: but now they S4Read and fill the blanks in 1c as quickly as possible.S1: a beautiful placeS2: lost of flowers and grassS3Observe the pictures and study the example in 2 and try to make new dialogs with their partners according to the pictures and the given words. Th

23、en act out the dialogs.S1: There were many trees when I visited the hill last year.S2: But now the trees have gone.S1: What has happened here?S2: The farmers have cut them down.Look at the pictures and listen to the sentences once to number them. Then listen to them twice and complete the sentences.

24、S1: People have cut down too many trees.S2: many trees.S3: but now they S4做完聽力練習(xí)后，再讓學(xué)生通過(guò)讀的方式在具體情況中感知兩種時(shí)態(tài)的差別，并通過(guò)相應(yīng)的任務(wù)去掌握它們的用法。該環(huán)節(jié)是讓學(xué)生通過(guò)聽的方式，繼續(xù)學(xué)習(xí)一般過(guò)去時(shí)和現(xiàn)在完成時(shí)的區(qū)別，并引導(dǎo)學(xué)生關(guān)注動(dòng)物的生存問題和環(huán)境污染的嚴(yán)峻形勢(shì)。教師要注意在情感態(tài)度教學(xué)方面的引導(dǎo)。6Summarizing and assigning homework (3 mins)Group workGroup workStep 1 :Sum up the main content of this class and the key pointsT: Lets go through what we have learned today. Group 1 and 2, please sum up the new words. Group 3 and 4, please sum up the key phrases and the difficult sentences. Group 5 and 6, please sum up the grammar in this class. Step 2: HMK