Unit 3 Discover useful structures (The past perfect tense)ppt课件-（2022新）人教版高中英语选择性必修第二册.pptx

1、To learn to use the past perfect tense and the past perfect passive voice.To make sentences by using the past perfect tense and the past perfect passive voice. 过去完成时过去完成时过去完成时的被动语态过去完成时的被动语态造句造句Look at the two sentences , find out the predicate verbs.(P29)1.They had finished their dinner by the time

2、 Sam joined them.2.Their dinner had been finished by the time Sam joined them.谓语动词谓语动词 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？）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？）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？）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？ 一般过去时时态时态结构结构动作发生前后动作发生前后过去完成

3、时主动主动： 被动被动： 被被动动： 主动主动： did/was/werewas/were/ donehad donehad been done先发生先发生 后发生后发生Q1Q1：什么是过去完成时？Q2Q2：过去完成时的结构都有哪些？Q3Q3：过去完成时时间状语有哪些？Q4：隐形的过去完成时Hong Kong _ (return) to China in 1997.returnedQ1Q1：什么是过去完成时？Macao/mka/ _ (return) to China in 1999.returnedHong Kong _ (return) to China before Macao came

4、 back to China.had returned澳门澳门Q1Q1：什么是过去完成时？Hong Kong had returned to China before Macao came back to China. 香港在澳门回归之前就已经回归祖国了。香港在澳门回归之前就已经回归祖国了。过去完成时是表示过去完成时是表示: 过去某个时间之前已经发生的动作或一直延续的动作或状态。“过去的过去”19991997(2022)Q2Q2：过去完成时的结构？：过去完成时的结构？1.They had finished their dinner by the time Sam joined them.2.T

5、heir dinner had been finished by the time 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?肯定句肯定句： 被动被动： 否定句否定句： 一般疑问句一般疑问句： had done had been donehad (not) done(=hadnt done)Had sb done sth?By th

6、e time I walked into class, the teacher had started teaching. By the time I walked into class, the teacher hadnt started teaching. Had the teacher started teaching by the time you walked into class?Q2Q2：过去完成时的否定和疑问结构？：过去完成时的否定和疑问结构？I had finished reading the novel by nine oclock last night.We had le

7、arned over two thousands English words by the end of last term.They had planted six hundred trees before last Wednesday.Q3Q3：过去完成时时间状语有哪些？1.by+过去的时间点I had finished reading the novel by nine oclock last night.2.by the end of+过去的时间点We had learned over two thousand English words by the end of last term

8、.3.before+过去的时间点They had planted six hundred trees before last Wednesday. Q3Q3：过去完成时时间状语有哪些？My father asked me if I had finished reading that book.The lady showed me the pictures she had painted. I began the work after he had gone.1.在主从复合句中，主句为 ，从句动作发生在主句之前，用 。Q4：隐形的过去完成时隐形的过去完成时过去时过去完成时 2. 用于一些固定句型

9、：用于一些固定句型：It / This / That was + the first / second / . + time + that从句，从句，从句谓语常用过去完成时。如：从句谓语常用过去完成时。如：It was the first time that I had made such a mistake.hardly . when. /no sooner . than. ：“刚刚.就就.”；hardly和和no sooner分句谓语常用过去完成时。如：分句谓语常用过去完成时。如：The party had hardly started when Joe left.I had no soo

10、ner got back to the kitchen than the doorbell rang. 3. 用于用于hope, intend, mean, think等动词表示未实现的等动词表示未实现的愿望时愿望时,意为意为“本打算，本想本打算，本想.”。如：。如：I had intended visiting him this weekend but I wasnt able to make it. I had thought to return early but they wouldnt let us go.1幻灯片幻灯片172幻灯片幻灯片 184幻灯片幻灯片 205幻灯片幻灯片 21

11、3选择题选择题(2分分)6幻灯片幻灯片 221幻灯片幻灯片172幻灯片幻灯片 184幻灯片幻灯片 205幻灯片幻灯片 213选择题选择题(2分分)6幻灯片幻灯片 22【语境应用语境应用】完成句子。（每小题完成句子。（每小题1分）分）1) The tickets _ (sell) out before I came to the cinema. 2) By the end of last year, we _ (produce) 20,000 cars.3) When the police arrived, the thieves _ (run) away. had been sold had

12、produced had run 1幻灯片幻灯片172幻灯片幻灯片 184幻灯片幻灯片 205幻灯片幻灯片 213选择题选择题(2分分)6幻灯片幻灯片 22选择题(2分)4) She told us that the meeting_(cancel).A.had canceled B. has been canceledC. had been canceled D. has canceledC1幻灯片幻灯片172幻灯片幻灯片 184幻灯片幻灯片 205幻灯片幻灯片 213选择题选择题(2分分)6幻灯片幻灯片 221幻灯片幻灯片172幻灯片幻灯片 184幻灯片幻灯片 205幻灯片幻灯片 213选

13、择题选择题(2分分)6幻灯片幻灯片 22【即学即练即学即练】翻译句子。（每小题翻译句子。（每小题2分）分）1) 到上个月底为止，我已经学了四千个单词。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。他做完作业后，出去踢足球了。I had learned 4,000 words by the end of last month.After he had done his homework, he went out to play football.1幻灯片幻灯片172幻灯片幻灯片 184幻灯片幻灯片 205幻灯片幻灯片 213选择题选择题(2分分)6幻灯片幻灯片 22把下

14、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：否定句：By the time I went back home, my mother hadnt cooked the meals. 一般疑问句：一般疑问句：Had your mother cooked the meal by the time you went back home?句子接龙：句子接龙：Work in group and make sentences Student1 : When I set off for t

15、he 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:Extension Activity(扩展活动扩展活动)过去完成时过去完成时构成构成用法用法 主动语态主动语态had done过去某一时间或动作之前已经发生或完成的动作。过去某一时间或动作之前已经发生或完成的动作。It was the first/

16、second time that sb had done sth.hardly . when.; no sooner . than.过去没有实现的愿望、打算或意图。过去没有实现的愿望、打算或意图。hope, think, expect, mean, intend等。等。使用过去完成时要有过去使用过去完成时要有过去时间为参照点。时间为参照点。 否定形式否定形式had (not) done=hadnt done 被动语态被动语态had been done 一般疑问句一般疑问句Had sb done sth?Review the grammar points.完成书本完成书本P29练习练习2。完成步步高练习册完成步步高练习册P36达标检测达标检测II。