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2019-2020年九年級(jí)英語(yǔ)全冊(cè) Unit 6 When was it invented Period 4教學(xué)案 （新版）人教新目標(biāo)版 課題名 主備人 課時(shí) Period 4(Section A Grammar Focus-4c) 學(xué)習(xí)目標(biāo) 1) 學(xué)習(xí)掌握下列詞匯：fridge, low, somebody, translate, lock, earthquake, sudden, all of a sudden, biscuit, cookie, instrument 2）進(jìn)行一步復(fù)習(xí)鞏固學(xué)習(xí)Section A 部分所學(xué)的生詞和詞組。 3）進(jìn)一步學(xué)習(xí)運(yùn)用一般過(guò)去時(shí)態(tài)的被動(dòng)語(yǔ)態(tài)。 4) 掌握主動(dòng)語(yǔ)態(tài)變被動(dòng)語(yǔ)態(tài)的方法，并通過(guò)不同方式的練習(xí)，來(lái)熟練運(yùn)用。 學(xué)習(xí)重點(diǎn) 1) 學(xué)習(xí)生詞fridge, low, somebody, translate, lock, earthquake, sudden, all of a sudden, biscuit, cookie, instrument 2) 復(fù)習(xí)鞏固Section A 部分所學(xué)的生詞和詞組，達(dá)到熟練運(yùn)用的目標(biāo)。 學(xué)習(xí)難點(diǎn) 1) 一般過(guò)去時(shí)態(tài)的句子變?yōu)楸粍?dòng)語(yǔ)態(tài)。 2) 綜合運(yùn)用所學(xué)的知識(shí)進(jìn)行練習(xí)運(yùn)用。 教學(xué)步驟 教學(xué)過(guò)程 二次備課 I.溫故知新 Show some pictures of some inventions and ask the students to have a free talk about some inventions. What do you think is the most helpful invention? When was it invented?Who was it invented by? II.興趣導(dǎo)入 Work in pairs. Look at 1b. Student A cover the dates. Student B, ask student A when the things in the picture were invented. Then change roles and practice again. 2. Ask students to make similar dialogues using the things around them. III.感受新知 1.Ask the students to make a list of five helpful inventions and five annoying inventions on their own, move around the room to offer help as needed. 2. Let the students who would like to share their answers to read to the class. IV.梳理鞏固 Practice Work on 4a: 1. Tell Ss to read the sentences in 4a and rewrite the sentences using the passive voice. 2. 認(rèn)真閱讀每個(gè)句子，根據(jù)上下文確定空格處應(yīng)填的意思。 3. 逐句進(jìn)行分析推敲，然后分析句子的時(shí)態(tài)及語(yǔ)態(tài)，用適當(dāng)?shù)男问教羁铡? 4. 最后，通讀一遍所有句子，進(jìn)行綜合理解，看句子的意思是否通順，合理。 5. Check the answers with the Ss. Work on 4c: Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks. 1. 先通讀小短文，了解大意。 2. 逐句分析每一句話(huà)的意思，確定句子主語(yǔ)和謂語(yǔ)動(dòng)詞之間主動(dòng)或被動(dòng)關(guān)系。 3. 結(jié)合句子的時(shí)態(tài)，填上正確的形式。 4. 復(fù)讀短文，看是否通順。 5. Check the answers V.拓展探究 主動(dòng)語(yǔ)態(tài)變被動(dòng)語(yǔ)態(tài)應(yīng)注意的問(wèn)題 1. 有些短語(yǔ)動(dòng)詞相當(dāng)于及物動(dòng)詞，變?yōu)楸粍?dòng)句時(shí)介詞或副詞不能去掉。 2. 含有雙賓語(yǔ)的主動(dòng)句變?yōu)楸粍?dòng)句時(shí)，通常把指“人”的間接賓語(yǔ)變?yōu)橹髡Z(yǔ)，指“物”的直接賓語(yǔ)保留不變；如果把指物”的直接賓語(yǔ)變?yōu)橹髡Z(yǔ)，則在間接賓語(yǔ)前加to或for。 An e-dictionary was given to me yesterday. 3. 主動(dòng)句中感官動(dòng)詞see/hear/watch/feel等和使役動(dòng)詞make/let/have等后跟省略to 的動(dòng)詞不定式，變?yōu)楸粍?dòng)語(yǔ)態(tài)時(shí)應(yīng)加上不定式符號(hào)to。 I saw a heavy man enter the house. A heavy man was seen to enter the house. 4. 系動(dòng)詞、不及物動(dòng)詞或某些短語(yǔ)動(dòng)詞（happen, take place, e true, fall asleep…）沒(méi)有被動(dòng)語(yǔ)態(tài)。 What happened to Mr. Brown? 布朗先生發(fā)生了什么事？ 課堂檢測(cè) 補(bǔ)全下列主動(dòng)句變被動(dòng)句。 1. Jenny put her clothes in the suitcase last night. Her clothes____ ____ in the suitcase last night. 2. The twins sang an English song that day. An English song ____ _____ ___ by the twins that day. 3. Did they build a bridge here a year ago? ____ a bridge ____ here by them a year ago? 4. They sold out the light green dresses yesterday. The light green dresses ____ _____ _____ out. 教學(xué)反思