課時(shí)4 Grammar授課課件

1、 What were you doing when its raining yesterday? I was reading at home. 一、過(guò)去進(jìn)行時(shí)一、過(guò)去進(jìn)行時(shí) 單元語(yǔ)法知識(shí)梳理單元語(yǔ)法知識(shí)梳理 1. 定義定義 過(guò)去進(jìn)行時(shí)表示過(guò)去某一時(shí)刻正在進(jìn)行的動(dòng)作或過(guò)去進(jìn)行時(shí)表示過(guò)去某一時(shí)刻正在進(jìn)行的動(dòng)作或 過(guò)去某一階段一直在進(jìn)行的動(dòng)作。過(guò)去某一階段一直在進(jìn)行的動(dòng)作。 eg：I was reading in the library at that time. 那時(shí)我正在圖書(shū)館看書(shū)。那時(shí)我正在圖書(shū)館看書(shū)。 單元語(yǔ)法知識(shí)梳理單元語(yǔ)法知識(shí)梳理 2. 構(gòu)成構(gòu)成 過(guò)去進(jìn)行時(shí)由過(guò)去進(jìn)行時(shí)由“was/wer

2、e現(xiàn)在分詞現(xiàn)在分詞”構(gòu)成。構(gòu)成。 am，is的過(guò)去式是的過(guò)去式是was；are的過(guò)去式是的過(guò)去式是were。 【注意注意】 單元語(yǔ)法知識(shí)梳理單元語(yǔ)法知識(shí)梳理 3. 句式變換句式變換 一般疑問(wèn)句及回答一般疑問(wèn)句及回答: Was/Were主語(yǔ)主語(yǔ)v. ing形式其他？形式其他？ 肯定回答：肯定回答：Yes，主語(yǔ)，主語(yǔ)was/were. 否定回答：否定回答：No，主語(yǔ)，主語(yǔ)wasnt/werent. eg：Were you watching TV at home at 9 oclock yesterday evening?昨天晚上昨天晚上9點(diǎn)你在家看電視嗎？點(diǎn)你在家看電視嗎？ Yes，I was.

3、/ No, I wasnt. 是，我是。是，我是。/不，我不是。不，我不是。 單元語(yǔ)法知識(shí)梳理單元語(yǔ)法知識(shí)梳理 否定句否定句: 肯定句變否定句時(shí)在肯定句變否定句時(shí)在was/were 之后加之后加not，was not常縮?？s 寫(xiě)為寫(xiě)為wasnt，were not ?？s寫(xiě)為?？s寫(xiě)為werent。 eg：I was not/ wasnt reading in the library at that time. 我那時(shí)不在圖書(shū)館看書(shū)。我那時(shí)不在圖書(shū)館看書(shū)。 特殊疑問(wèn)句：特殊疑問(wèn)句： 疑問(wèn)詞疑問(wèn)詞was/ were主語(yǔ)主語(yǔ) v. ing形式其他？形式其他？ 例如：例如：What were you do

4、ing at that time? 你那時(shí)在干什么？你那時(shí)在干什么？ 單元語(yǔ)法知識(shí)梳理單元語(yǔ)法知識(shí)梳理 單元語(yǔ)法知識(shí)梳理單元語(yǔ)法知識(shí)梳理 二、二、when、while和和as的用法的用法 when/ as后的動(dòng)作可以是短暫的也可以是延續(xù)的，后的動(dòng)作可以是短暫的也可以是延續(xù)的， while后只能是延續(xù)的。后只能是延續(xù)的。 短暫性動(dòng)詞短暫性動(dòng)詞延續(xù)性動(dòng)詞延續(xù)性動(dòng)詞 表示不能延續(xù)的動(dòng)作，即動(dòng) 作發(fā)生后立即結(jié)束 表示動(dòng)作發(fā)生后可以持續(xù)一 段時(shí)間 如：begin, arrive, borrow, buy, break, close, come, fall, finish, go, leave, lend

5、, reach, receive, open, sell, start, stop 如：live, run, stay, clean, play, hold, watch, teach, read, study, teach, eat, drink, write, dance, sing, smoke 單元語(yǔ)法知識(shí)梳理單元語(yǔ)法知識(shí)梳理 讓我們回到讓我們回到when、while和和as的用法中。以過(guò)去時(shí)態(tài)為例，的用法中。以過(guò)去時(shí)態(tài)為例， 如下表所示：如下表所示： 短暫性動(dòng)詞短暫性動(dòng)詞延續(xù)性動(dòng)詞延續(xù)性動(dòng)詞 表示不能延續(xù)的動(dòng)作，即動(dòng)作 發(fā)生后立即結(jié)束 表示動(dòng)作發(fā)生后可以持續(xù) 一段時(shí)間 如：begin

6、, arrive, borrow, buy, break, close, come，fall，finish, go, leave, lend, reach, receive, open, sell, start, stop等。 如：live, run, stay, clean, play, hold, watch, teach, read, study, teach, eat, drink, write, dance, sing, smoke 單元語(yǔ)法知識(shí)梳理單元語(yǔ)法知識(shí)梳理 主從句動(dòng)作關(guān)系主從句動(dòng)作關(guān)系引導(dǎo)詞引導(dǎo)詞時(shí)態(tài)時(shí)態(tài)例句例句 同時(shí)發(fā)生, 主句動(dòng) 作發(fā)生的時(shí)候, 從 句動(dòng)作正在進(jìn)行 wh

7、en； while； as 主: 一般過(guò)去時(shí) 從: 過(guò)去進(jìn)行時(shí) The earthquake happened while/ as we were having class. 同時(shí)進(jìn)行while 主: 過(guò)去進(jìn)行時(shí) 從: 過(guò)去進(jìn)行時(shí) I was reading a book while he was sleeping. 單元語(yǔ)法知識(shí)梳理單元語(yǔ)法知識(shí)梳理 主從句動(dòng)作關(guān)系主從句動(dòng)作關(guān)系引導(dǎo)詞引導(dǎo)詞時(shí)態(tài)時(shí)態(tài)例句例句 從句動(dòng)作發(fā)生的時(shí) 候，主句動(dòng)作正在 進(jìn)行 when 主: 過(guò)去進(jìn)行時(shí) 從: 一般過(guò)去時(shí) When I came back home, he was sleeping. 從句動(dòng)作表示主句 動(dòng)

8、作發(fā)生的背景 as 主: 一般過(guò)去時(shí) 從: 一般過(guò)去時(shí) As the day went on, the weather got worse. 單元語(yǔ)法知識(shí)梳理單元語(yǔ)法知識(shí)梳理 主從句的動(dòng)作發(fā)生有先有后時(shí)，只用主從句的動(dòng)作發(fā)生有先有后時(shí)，只用when，如：，如： When I got to the museum，the door was closed. 當(dāng)我趕到博物館時(shí)，門(mén)已經(jīng)關(guān)上了。當(dāng)我趕到博物館時(shí)，門(mén)已經(jīng)關(guān)上了。 (got to后發(fā)生后發(fā)生) 【補(bǔ)充補(bǔ)充】 一、用所給詞的適當(dāng)形式填空 1We _ (make) a snowman from 3: 00 to 4: 00 yesterday a

9、fternoon. 2Amy _ (have) lunch at 12: 00 yesterday. 3She _ (watch) TV at home at this time yesterday. 4Mr White _ (take) a walk when it started to rain. 5He _ (read) a newspaper while his brother was watching TV. was having were making was watching was taking was reading 二、單項(xiàng)選擇 6Jenny _ in the kitche

10、n when you called her at 5 oclock this afternoon. (廣東) A. is cooking B. was cooking C. cooks D. cooked B 【點(diǎn)撥點(diǎn)撥】本題用本題用題眼法題眼法。根據(jù)時(shí)間狀語(yǔ)從句。根據(jù)時(shí)間狀語(yǔ)從句when you called her at 5 oclock this afternoon可知是表示過(guò)去可知是表示過(guò)去 的某一時(shí)間點(diǎn)，故句子用過(guò)去進(jìn)行時(shí)，故選的某一時(shí)間點(diǎn)，故句子用過(guò)去進(jìn)行時(shí)，故選B。 7. She _ to an English program while her parents _ TV.(蘭州

11、 ) A. was listening; is watching B. listened; were watching C. was listening; watched D. was listening; were watching D 【點(diǎn)撥點(diǎn)撥】本題用本題用題眼法題眼法。題干中的。題干中的while為連詞為連詞“當(dāng)當(dāng) 的時(shí)候的時(shí)候”，引導(dǎo)時(shí)間狀語(yǔ)從句。句意：當(dāng)她父母在看電，引導(dǎo)時(shí)間狀語(yǔ)從句。句意：當(dāng)她父母在看電 視時(shí)，她在收聽(tīng)英語(yǔ)節(jié)目。視時(shí)，她在收聽(tīng)英語(yǔ)節(jié)目。while可用于表示過(guò)去某一時(shí)可用于表示過(guò)去某一時(shí) 間內(nèi)同時(shí)發(fā)生的兩個(gè)動(dòng)作，綜合分析可知選間內(nèi)同時(shí)發(fā)生的兩個(gè)動(dòng)作，綜合分析可知選D。 8. What did the teacher say just now? Sorry, I didnt hear it. I _ out of the window. (荊州) A. look Blooked Cam looking Dwas looking D 【點(diǎn)撥點(diǎn)撥】本題用本題用句意理