while時間狀語從句課件

1、Part 1 Review ：Past Continuous Tense過去進行時Sentence Pattern ： S + was / were doing （+ time expressions）.Time Expressions: at 6:00 yesterday morning ; at that time; from 2:00 to 4:00 yesterday afternoonPart 1 Review ：Past ContinuousWhat was he doing at 9:00 yesterday morning?Lets practiceWhat was he do

2、ing at 9:00 yestyesterday morningWhat happened?yesterday morningWhat happenedWhat was the boy doing from 6:00 to 9:00 last night? What was the boy doing from 6:Lazy Goat was sleeping on the meadow.Big big wolf and his wife came.While Lazy goat was sleeping on the meadow, big big wolf and his wife ca

3、me.While：during a period of time （conj.） 當(dāng)?shù)臅r候 （連詞）Lazy Goat was sleeping on the Part 2 : While-clause in adverbial of timewhile引導(dǎo)的時間狀語從句How to useWhile sth was happening，sth happened. or While sb/sth was prep. /adv，sth happened.當(dāng)某事情正在發(fā)生的時候，另一件事情發(fā)生了。當(dāng)某人/事處于某種狀態(tài)下，另一件事情發(fā)生了。（while從句為背景動作,主句發(fā)生在從句過程之中）2.

4、While sth be happening, another one be happening. (be should change with the tense)當(dāng)一件事情發(fā)生的時候，另一件事情也同時正在進行。（while從句可以和主句互換位置，兩個動作正在同時發(fā)生）Part 2 : While-clause in adver While he was doing his homework，the bell rang. subordinate clause：從句（背景）principle clause：主句Focus on situation 1：（while從句為背景動作,主句發(fā)生在從句

5、過程之中） While he was doing his homew While she was away，her friend helped me.subordinate clause：從句（背景）principle clause：主句Tips: While 引導(dǎo)的句子為從句，表示事情發(fā)生的背景動作。 While從句中，出現(xiàn)實意動詞時，表示一段時間，所以只能選擇延續(xù)性 動詞，用過去進行時 短暫性動詞：瞬間發(fā)生就結(jié)束 eg：come，arrive，die etc. 延續(xù)性動詞：動作發(fā)生后可以持續(xù)進行 eg：eat ，sing，live etc. While she was away，her f

6、rienLets find it，then put them in one sentence！Which one is the While-clause? Which one is the principle clause?Eg: He was walking. A man stole his wallet.= While he was walking, a man stole his wallet. She fell down. She was climbing a ladder.= While she was climbing a ladder, she fell down. She wa

7、s away. Her friend looked after her child.= While she was away, her friend looked after her child. Lets find it，then put them inPart 3: Lets learnupseta bad dayHe burned himself while he was cooking.A： You look upset.B： I had a bad day.A： Why？ What happened？B: I burned myself while I was cooking.A:

8、Im sorry to hear that. Part 3: Lets learnupseta bad A： You look .B： I had a day.A： Why？ What ？B: A dog me while I was .A: Im to hear that. upset badhappenedbit delivering the mailsorryA： You look . upset A： You look .B： I had a day.A： Why？ What ？B: I myself while I was my fence.A: Im to hear that. u

9、pset badhappenedcutfixingsorryA： You look . upset Part 4：Lets say：oral time！Talk about an unlucky/a lucky thing！Here is a model: I was very upset yesterday. Because I had a very bad day. I lost my purse while I was shopping. I couldnt buy anything. I was really angry. What a bad day for me!Part 4：Le

10、ts say：oral time！Tal While he was reading，she was cooking. Focus on situation 2：（while從句可以和主句互換位置，表示兩個動作同時發(fā)生） While she was cooking，he was reading. Tips: 兩個動作同時發(fā)生，主從句調(diào)換位置，句意不變！主從句均選擇進行 時，動詞選擇延續(xù)性動詞！ While he was reading，she was he - sleep she - do her homeworkWhile he was sleeping，she was doing her h

11、omework. it - rain we - wait for the busWhile we were waiting for the bus，it was raining. I - walk he - runWhile I was walking ，he was running.Part 5：Lets write！ he - sleep she - do hePart 6：Lets compare!When & While(初步了解) 跟動詞時，while后面只能跟延續(xù)性動詞 - 進行時； when既可以跟延續(xù)性動詞，也可跟短暫性動詞- 進行時 、一般過去時都可以！Eg： While/When he was singing，the lights went out.