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視頻標簽：unexpected
所屬欄目：初中英語優質課視頻
視頻課題：人教版初中英語九年級Unit 12 Life is full of the unexpected Section A (Grammar focus-4c)甘肅省 - 蘭州
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Unit 12 Life is full of the unexpected. Section A (Grammar focus-4c)
一、教學目標
1.學習掌握下列詞匯:cream, workday, pie, show up, bean, market, by the end of.
2.進一步復習鞏固學習Section A 部分所學的生詞和詞組。 3.鞏固過去完成時的用法，能運用所掌握的語法，句型和詞匯進行交流。
4.能比較流利地講述自己特別的經歷。 二、教學重難點 教學重點
指導學生歸納總結過去完成時的用法以及句型結構。 教學難點
運用學過的語法寫出過去難忘的的經歷，并能流暢地講故事。 三、教學方法
1.合作交流、互相幫助。
2.指導學生歸類總結語法內容并能運用過去完成時講述故事。 四、教學過程 1. Revision
Ask some students to retell the story that we learned yesterday. Teacher shares her story --- The unexpected lunch II. Lead-in
T: I made dumplings last Sunday.
I had hurt my hand with knife before 12a.m last Sunday. I had hurt my hand with knife before I made dumplings. Ss: 過去完成時的構成：________________________
過去完成時表示：__________________________ 過去完成時常與_______________等引導的時間狀語連用 III. Talk and share.
1.By the time I left for school in the morning, _____________. 2. By the end of the school day, _______________________. 3. By dinner time, _____________________________. IV. Grammar Focus.
1. Ask the students to finish the exercises
(1).當我到達學校的時候，我才意識到我把書包忘在家里了。 When I got to school, I realized I _____ ____my backpack at home. (2).到我返回學校的時候， 鈴聲已經響過了。
_____ _____ _____ I got back to school, the bell ______ _______. (3).我到達公共汽車站之前， 汽車已經離開了。
Before I _____ _____ the bus stop, the bus _____ _____ _____. (4).我決定先買一杯咖啡，然后再準備去辦公室。
I ___ ___ ___ go up to my office when I decided to get a coffee first. (5).就在我和別的工作人員一起排隊等候的時候，聽到了一個巨大的聲響。
As I ___ ___ ___ ___ with the other office workers, I ___ ___ ___ ___. 2. Make a summary
由when, by the time, before等引導時間狀語從句時，若描述發生在過去的事，主句常用過去完成時(had + 過去分詞)表示動作發生在過去的過去。
Be about to do, be doing等表示即將或正在做某事時，常用when引導從句表示突然發生的動作，when可省略。 Ⅴ. Practice
1. Work on 4a. Ask four students to write their sentences on the blackboard.Correct their sentences together in class. Eg. (1).Tim went into the bathroom. Mary got up.
By the time Mary got up, Tim had already gone into the bathroom. (2). The coffee became cold. I put cream (n. 奶油) in the coffee. (3). The teacher collected the math homework. I got to school. (4). I completed the work for my boss. The workday ended. (5). The movie started. I arrived at the cinema.
(6). My mother finished making the apple pie (n. 果餡派). I got home from my language course.
2. Work on 4b. Let Ss read the words or phrases in the box and try to understand the meanings of them. Then fill in the blanks with the correct forms of the words by themselves.
(1). By the time I arrived at the party, everyone else ____already ____.
(2). When he put the noodles into a bowl, he realized he _________to add the green beans (n. 豆).
(3). By the time my mother came back from the market (n. 市場), I ____ already __________ the door to go for my piano lesson.
(4). Before she got to the airport, she _____ ___ about the earthquake. (5). When she _______ the movie theater, she _____ remembered she had forgotten to feed her dog.
(6). Before she got a chance to say goodbye, he ____________ the building.
2.Correct their answers together. VI. Write and share stories.
1.Let Ss think about their sad/interesting/unlucky/exciting/scary day . Then write their unforgettable stories. 2.Ask some students to share their stories. VII. Homework
1.Review Grammar Focus .Try to make sentences with before, by the time and and make use of the past perfect tense. 2.Writing：Describe the most unforgettable experience.
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