仁愛版九年級英語上第二單元教案

1、Unit 2 Saving the EarthTopic 1 Pollution has caused too many problems.Section A. Material analysis本課是九年級第二單元第一話題的第一課時。主活動是1a。1a通過對比“West Hill”今昔的環(huán)境變化，引出本話題的污染問題，鞏固現(xiàn)在完成時與一般過去時的用法及區(qū)別。1b要求學生能夠聽懂一般過去時態(tài)和現(xiàn)在完成時態(tài)，也就是要分清1b所提及的詞語所伴隨的時間。1c則是在閱讀之后再找出“西山”所發(fā)生的變化。2通過觀察圖片內(nèi)容，結(jié)對編對話，描述污染前后的情況，進一步訓練學生口頭表達能力和對一般過去時和現(xiàn)在完成

2、時的運用能力。3通過聽并記錄“動物的生存現(xiàn)狀”，了解環(huán)境污染帶給動物的危害，繼續(xù)提高學生的聽力水平。任務4的口語表達，培養(yǎng)學生的說的技能，檢測對本課的掌握情況。通過本課的學習，培養(yǎng)學生關(guān)注環(huán)境問題的意識。.Teaching aims1.Knowledge aims： 掌握本課的重點詞匯和短語，鞏固一般過去時和現(xiàn)在完成時的用法和區(qū)別。能夠用一般過去時和現(xiàn)在完成時描述過去和現(xiàn)在的變化。正確使用there be sth./sb. doing sth.來表達“有某人/物正在做某事”。2.Skill aims: 能聽懂描述環(huán)境變化的對話，區(qū)別一般過去時和現(xiàn)在完成時的用法。能理解和運用一般過去時和現(xiàn)在完成

3、時來進行聽、說、讀、寫活動。3.Emotional aims: (optional) 讓學生了解環(huán)境污染的嚴重性，并樹立環(huán)保意識。4. Culture awareness: (optional) 通過課文的學習，讓學生了解環(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.來表達“有某人/物正在做某事” 。 區(qū)別使用短語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)別使用一般過去時和現(xiàn)在完成時。. Learning strategies 通過引導學生在聽前閱讀1b和3，培養(yǎng)學生形成聽前熟悉、預測聽力材料的習慣。 通過朗讀1a和2，引導學生模仿已有對話，編寫新的對話。 通過1c，培養(yǎng)學生整合

6、對話信息，將對話轉(zhuǎn)換為語篇的能力。. Teaching aids圖片（關(guān)于校園周邊環(huán)境變化對比圖或者影像資料），錄音機，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.通過談論天氣，要去野炊，吸引學生的注意力，也符合課文主題，使學生專注于課堂。如果天氣不好，也可以做

8、好周末的野炊計劃。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先讓學生討論出合適的野炊地點，老師再出示西山?jīng)]被污染的圖片來吸引學生的注意。當學生興趣高漲時，又呈現(xiàn)被污染后的圖片，讓學生滿懷興趣和疑問去了解西山被污染前后的狀況，更好的體會一般過去時和現(xiàn)在完成時在語境中的運

10、用，同時也突破了單詞關(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，老師應當同時呈現(xiàn)單詞和音標，讓學生運用所學音標自己解決單詞的讀音問題，如果學生發(fā)音不準，老師要及時更正。再根據(jù)圖片和講解，引導學生大膽的猜測詞義和部分難句的意思，為1a中的聽力對話掃障礙。

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.本課對話不長，詞匯量不大，可以直接在組內(nèi)核對答案。如果對話較長，難度較大，建議先聽兩遍后再讀，通過讀來檢查聽的結(jié)果。分角色朗讀是培養(yǎng)語感，增強自信，提高興趣的基本方法之一。讓學生通過讀的方式感知一般過去時和現(xiàn)在完成時的差別后，在2中馬上運用，編寫新的對話，可以讓學生完整的體會兩種時態(tài)的

17、區(qū)別，也突破了本課的語法關(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做完聽力練習后，再讓學生通過讀的方式在具體情況中感知兩種時態(tài)的差別，并通過相應的任務去掌握它們的用法。該環(huán)節(jié)是讓學生通過聽的方式，繼續(xù)學習一般過去時和現(xiàn)在完成時的區(qū)別，并引導學生關(guān)注動物的生存問題和環(huán)境污染的嚴峻形勢。教師要注意在情感態(tài)度教學方面的引導。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