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1、UNIT 3 GrammarLearning objectives:（本课学习目标）1.To learn to use the past perfect tense and the past perfect passive voice（过去完成时） (过去完成时的被动语态).2.To make sentences by using the past perfect tense and the past perfect passive voice.造句Stage 1 lead-in1，Look at the two sentences, find out the predicate verbs.
2、(课本P29) 谓语动词They had finished their dinner by the time Sam joined them.Their dinner had been finished by the time Sam joined them.2. Then discuss the following questions:（1）主句和从句中的动词分别使用了什么时态和语态？（2）主句和从句中的动词的形式各是怎样的？（3）主句和从句中的动词所表示的动作哪个先发生、哪个后发生？Stage2 learn the past perfect tense1. 什么是过去完成时？（1）Prac
3、tice（练习）:1)Hong Kong _ (return) to China in 1997.2)Macao/mka/ _ (return) to China in 1999.澳门3)Hong Kong _ (return) to China before Macao came back to China.过去完成时是表示 。（学生代表上黑板写）2. 过去完成时的结构？（小组活动）1）They had finished their dinner by the time Sam joined them.2）Their dinner had been finished by the time
4、Sam joined them.3）By the time the policeman got to the shop, the thief hadnt run away.4）Had the thief run away by the time the policeman got to the shop?(学生代表到黑板上板书写以下完成时的结构)肯定句： 被动： 否定句： 一般疑问句： 3. 过去完成时时间状语有哪些？I had finished reading the novel by nine oclock last night.We had learned over two thousa
5、nds English words by the end of last term.They had planted six hundred trees before last Wednesday. +过去的时间点。（学生代表上黑板写）4. 隐形的过去完成时(参照步步高练习册P36,找到并用下划线划出来)Stage3 PracticeLet Ss complete the exercises in group and have a match. （小组比拼）1.【语境应用】完成句子。（每小题1分）1) The tickets _ (sell) out before I came to the
6、cinema. 2) By the end of last year, we _ (produce) 20,000 cars.3) When the police arrived, the thieves _ (run) away.2. 选择题(2分)She told us that the meeting_(cancel).A. had canceled B. has been canceledC. had been canceled D. has canceled3.【即学即练】翻译句子。（每小题2分）1) 到上个月底为止，我已经学了四千个单词。2) 他做完作业后，出去踢足球了。4. 翻译
7、题：把下面的句子改为否定句和一般疑问句（1分/句）By the time I went back home, my mother had cooked meals.否定句：一般疑问句：Stage3 Extension Activity(扩展活动)句子接龙：Work in group and make sentences Student1 : When I set off for the cafeteria, I had finished my homework.Student2: Before I finished my homework, I had called Tom.Student3: By the time I called Tom, his house had been broken into. Student4. When his house was broken into, he had gotten up.Stage4 summary (总结)Stage5 homework