1、How Do You Use the Internet章節(jié)名稱八年級下Unit 4 lesson19學(xué)時(shí)1教材分析本課是冀教版英語八年級下冊第四單元第一課時(shí)How Do You Use the Internet，教材以使用計(jì)算機(jī)上網(wǎng)為話題,從學(xué)生熟悉的日常活動(dòng)出發(fā)來探討計(jì)算機(jī)與網(wǎng)絡(luò)的功能，認(rèn)識網(wǎng)絡(luò)對我們學(xué)習(xí)和生活的積極作用和消極影響,鼓勵(lì)學(xué)生利用網(wǎng)絡(luò)了解世界探索未知,要求學(xué)生學(xué)會科學(xué)合理安全地上網(wǎng)。通過解讀課文對話和設(shè)置針對性練習(xí)來學(xué)習(xí)if引導(dǎo)的條件狀語從句，熟練掌握一般現(xiàn)在時(shí)和一般將來時(shí)的運(yùn)用，正確使用情態(tài)動(dòng)詞can和must。課文由“想一想”、“主題對話”和“一起做”三部分組成。在“想一想

2、”這一部分，預(yù)設(shè)的兩個(gè)問題引出了本課的主要內(nèi)容和兩個(gè)關(guān)鍵詞“computer”，“internet”,為課文學(xué)習(xí)做了有效鋪墊；“主題對話”則重點(diǎn)圍繞使用電腦上網(wǎng)能干些什么展開討論和設(shè)想，相關(guān)的詞匯、短語、句型次第呈現(xiàn)，尤其以“if”引導(dǎo)的條件狀語從句反復(fù)出現(xiàn)，成為本課學(xué)習(xí)的重點(diǎn)和難點(diǎn)。在“一起做”這一部分，分別設(shè)置了“快速閱讀找信息”、“用動(dòng)詞正確形式填空”以及“綜合實(shí)踐運(yùn)用“三道練習(xí)，既注重知識鞏固，又著眼能力培養(yǎng)。本課時(shí)是一般將來時(shí)態(tài)和一般現(xiàn)在時(shí)態(tài)的綜合運(yùn)用，為正確運(yùn)用這兩種時(shí)態(tài)提供場景，也為條件狀語復(fù)合句的學(xué)習(xí)奠定基礎(chǔ)，具有承前啟后的作用；就整個(gè)單元來說它既是本單元的基本語言內(nèi)容，又為本

3、單元的知識擴(kuò)展和語言綜合運(yùn)用奠定基礎(chǔ)。 學(xué)情分析八年級學(xué)生已經(jīng)學(xué)過一般將來時(shí)態(tài)和一般現(xiàn)在時(shí)態(tài)，已了解了這兩種時(shí)態(tài)的肯定句、否定句、一般疑問句等形式。首次接觸if引導(dǎo)的條件狀語從句，在接受上會有一些難度，這就要求教師在引入的時(shí)候要多從學(xué)生的角度思考。在口語運(yùn)用中判斷if條件句的主句、從句也許會存在一定的困難。在運(yùn)用一般將來時(shí)和一般現(xiàn)在時(shí)態(tài)也許會產(chǎn)生混淆。教學(xué)目標(biāo)一、知識目標(biāo)1.Words and expressions in this lesson .2.Target language :I used to have a desktop computer.How does the Inteern

4、et help you?If you work hard , youll complete your research. .3.掌握一般現(xiàn)在時(shí)和一般將來時(shí)兩種時(shí)態(tài)的運(yùn)用。4.學(xué)習(xí)用if引導(dǎo)的條件狀語從句:。二、語言技能目標(biāo)（1）能用if引導(dǎo)的條件狀語從句來作出假設(shè)，用will來談?wù)摻Y(jié)果，如：If you do, youll be late.（2）能用“I think Im going to”來表達(dá)作出的決定，如：I think Im going to the party with Karen and Ann.語言知識目標(biāo)（1）正確運(yùn)用if引導(dǎo)的條件狀語從句，如：If you do, you w

5、ill have a great time.（2）運(yùn)用what對if引導(dǎo)的句子所產(chǎn)生的結(jié)果進(jìn)行提問，如：What will you do if you have a computer?三、情感態(tài)度目標(biāo)（1）激發(fā)學(xué)生對科學(xué)的熱愛和對英語學(xué)習(xí)的興趣；（2）認(rèn)識網(wǎng)絡(luò)對我們學(xué)習(xí)和生活的積極作用和消極影響，引導(dǎo)學(xué)生科學(xué)合理安全地上網(wǎng)。教學(xué)重難點(diǎn) 重點(diǎn)：（1）鞏固和運(yùn)用運(yùn)用一般現(xiàn)在時(shí)和一般將來時(shí)。（2）學(xué)習(xí)if引導(dǎo)的條件狀語從句。難點(diǎn)： 條件狀語從句中主句和從句的判斷及時(shí)態(tài)的運(yùn)用。 教學(xué)方法創(chuàng)設(shè)情境法、口語交際法、Pairwork。 通過創(chuàng)設(shè)開放式教學(xué)情境，兩人一組合作交流，使學(xué)生在具體的語言環(huán)境中感受i

6、f 條件狀語從句的用法。信息技術(shù)應(yīng)用錄音，多媒體課件教學(xué)過程教學(xué)內(nèi)容教學(xué)活動(dòng)設(shè)計(jì)意圖Step 1: Leading-inGreet the class.Introduce the new unit.T: Today we will begin a new unit with its title“The Internet Connect Us.What is the Internet. do you know?S:Yes,The Internet is 因特網(wǎng) in Chinese.T: Right.What does“connect”mean？S：連結(jié)。In English it means“

7、put together”. T:Quite well!But how does the Internet connect us?The students may answer the question in different ways. The teacher show the class a desktop,.Then the students may realized that the Internet connects people by connecting their computers.由師生對話自然導(dǎo)入新課。很快接近主題，容易激發(fā)學(xué)生的學(xué)習(xí)興趣Step 2:discussio

8、nLook at the pictures in lesson 19,Divide the class into four groups to discuss the THINK ABOUT IT questions and make a list.of What can you do on a computer? How do you use the Internet?Then ask each group to give a report about their discussion.初步感知課文內(nèi)容，營造新知學(xué)習(xí)氛圍，再現(xiàn)學(xué)過的與本課相關(guān)的詞匯和短語。Step 3 Iearn the n

9、ew words and phrasesShow the class the vocabulary list. Encourage the students to learn the new words themselves.check to see if they have any difficulties in pronunciation.Help them with their problems.After that,explain the meaning and usage of the key words and phrases.培養(yǎng)學(xué)生學(xué)習(xí)英語的基本能力，學(xué)習(xí)掌握與電腦和互聯(lián)網(wǎng)相關(guān)

10、的新詞匯,為下一步朗讀和學(xué)習(xí)課文對話做好準(zhǔn)備。 Step 4 ReadingInstruct the students to read Lesson 19 and do Exercise 1 independently.Check and discuss the answers as a class.Ask them to underline the contents they dont understand.以任務(wù)為引導(dǎo)，安排自學(xué)，發(fā)現(xiàn)問題。貫徹“先學(xué)后教”這一基本思想Step 5 PresentationPresent the adverbial clauses with“if” If y

11、ou have some money, what will you buy?(I will buy a computer) :What will you do if you have a computer?(Iwill send e-mails to my friends) You go to school by bike because your home is very far from the school. If you walk to school, what will happen?(I will be late for school)If you are late for sch

12、ool , what will happen? (I will have to say sorry to the teacher.)T:if引導(dǎo)一個(gè)條件狀語從句當(dāng)主句是一般將來時(shí)時(shí)，if引導(dǎo)的從句必須用現(xiàn)在時(shí)來表示將來可能發(fā)生的動(dòng)作或存在的狀態(tài)。 If Igetup late, Iwill belate for school. If Igetenough exercise, Iwill behealthy.從句（一般現(xiàn)在時(shí)態(tài)） 主句（一般將來時(shí)態(tài)） Iwill betired if Iwatchtoo much TV. Iwill behappy if Ihelpothers.主句（一般將來時(shí)

13、態(tài)） 從句（一般現(xiàn)在時(shí)態(tài)先以口頭語言設(shè)置情境,引出句型,然后師生一起分析主、從句的特點(diǎn)，再設(shè)計(jì)相應(yīng)練習(xí)，讓學(xué)生逐漸掌握條件狀語從句。Step 6 Reading and discussionPlay the tape.Students listen and read along.After that,instruct the students to read the dialogue in groups of three.Have the students discuss the prepared questions in small groups to seeIf they really u

14、nderstand the contents of the text.As the students to do Exercise 2 independently.Check the answers as a class.進(jìn)一步理解課文，Step 7 TaskT: Maybe some students will play computer games after class. I like surfing the Internet. If you surf the Internet, what will happen? Please work in groups of four or fiv

15、e.Ss: .T: I think you will learn a lot by surfing the Internet. But playing computer games a lot is bad for you. You should study hard and then you will be happy.討論上網(wǎng)對學(xué)生的影響。 Step 8 Grammar Focus.Ask each group to write down as many sentences like those in the grammar focus as they can.讓學(xué)生觀察黑板上的句子并總結(jié)

16、出if條件句中，主句用一般將來時(shí)態(tài)，從句用一般現(xiàn)在時(shí)態(tài)。課堂小結(jié)T: What have you learned in this lesson? Who can sum up ?S1: .T: Perfect! You are really the best. Homework for today:HomeworkComplete Exercises 1 and 2 in the Workbook Lesson 19.Learn the new words and phrases by heart.板書設(shè)計(jì)：Unit 5 If you go to the party, youll have a great time!A: I think Im going to .B: If you , youll If Igetup late, Iwill belate for school. If Igetenough exercise, Iwill behealthy.從句（一般現(xiàn)在時(shí)態(tài)） 主句（一般將來時(shí)態(tài)） Iwill betired if Iwatchtoo much TV. Iwill behappy if