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1、Grammar FocusGrammar Focus1. While I was watching TV, my mom was cooking. 2. While John was shopping, Mary took the car to the car wash. 3. John was taking photos when Mary bought a drink.4. He was reading inthe library when the rainstrom came. 二、when和while引導(dǎo)的時(shí)間狀語(yǔ)從句??偨Y(jié):when 既可表示時(shí)間點(diǎn),也可表示時(shí)間段,從句中謂語(yǔ)動(dòng)詞一般
2、是是瞬間動(dòng)詞,但也可以是延續(xù)性動(dòng)詞。while 只表示某個(gè)時(shí)間段,從句謂語(yǔ)動(dòng)詞必須用延續(xù)性動(dòng)詞,且多用進(jìn)行時(shí)態(tài)。若主句和從句的動(dòng)作同時(shí)發(fā)生,兩句都用過(guò)去進(jìn)行時(shí)的時(shí)候,只用while引導(dǎo)。when 引導(dǎo)時(shí)間狀語(yǔ)從句(一般過(guò)去時(shí)態(tài)),主句經(jīng)常用過(guò)去進(jìn)行時(shí)態(tài)。while 引導(dǎo)時(shí)間狀語(yǔ)從句(時(shí)態(tài)常用過(guò)去進(jìn)行時(shí)態(tài)),主句常用一般過(guò)去時(shí)態(tài)或過(guò)去進(jìn)行時(shí)態(tài)。當(dāng)while前后的句子描述的情況相對(duì)或相 反,while可譯為“然而”e.g. I am outgoing while my sister is quiet and shy.1. While I was watching TV, my 3.when引導(dǎo)的時(shí)
3、間狀語(yǔ)從句中的動(dòng)詞可以是終止性動(dòng)詞,也可以是延續(xù)性動(dòng)詞,而while從句中的動(dòng)詞必須是延續(xù)性動(dòng)詞。When and while2.when 說(shuō)明從句的動(dòng)作和主句的動(dòng)作可以是同時(shí),也可以是先后發(fā)生;while 則強(qiáng)調(diào)主句的動(dòng)作在從句動(dòng)作的發(fā)生的過(guò)程中或主從句兩個(gè)動(dòng)作同時(shí)發(fā)生。1.由when引導(dǎo)的時(shí)間狀語(yǔ)從句,從句應(yīng)用一般過(guò)去時(shí),主句用過(guò)去進(jìn)行時(shí);while 從句用過(guò)去進(jìn)行時(shí),主句用一般過(guò)去時(shí),當(dāng)強(qiáng)調(diào)主句從句動(dòng)作同時(shí)在發(fā)生時(shí),多用while.聽(tīng)一聽(tīng) 3.when引導(dǎo)的時(shí)間狀語(yǔ)從句中的動(dòng)詞可以是終止性動(dòng)Fill in the blanks with “while” and “when”.1. Tom
4、 was eating supper, it began to rain outside.2. What were you doing, Mr. Zhou came in?3. Peter was sleeping, a thief broke into his house.4. She left her hometown she was five.whenwhenWhileWhileFill in the blanks with “while1. _ Jennifer was reading a magazine, his sister was listening to the pop mu
5、sic.A. WhileB. When C. What time2. I was trying to draw a cat on the board _ the teacher came in.A. whileB. when C. what time3. My best friend visited my house while I _ dinner in the kitchen.A. cookedB. cooking C. was cooking練一練A B C 1. _ Jennifer was readin4. When_ the car _? In 1885 (隨州市) A. did;
6、 invent B. was; invented C. does; invent D. is; invented5. Our teacher wants us to be _whenwe talk with the foreigners. (大連中考真題)A. comfortable B. unusual C. grateful D. confident B D 4. When_ the car _6. Dick gave me a notewhileI _ in the library. I guess he made it to say “sorry” to you. (黃岡市)A. am
7、 reading B. was reading C. reads D. will read B 6. Dick gave me a notewhile 2. 過(guò)去進(jìn)行時(shí)1. 概念: 表示過(guò)去某一時(shí)刻或某段時(shí)間內(nèi)正進(jìn)行的動(dòng)作。2. 構(gòu)成: was/were + 動(dòng)詞現(xiàn)在分詞3. 用法: a: 表示某一時(shí)刻正進(jìn)行的行為, 與特定的過(guò)去時(shí)間狀 語(yǔ)連用,常見(jiàn)的時(shí)間有: at 8 last night, at this time at that time, at that moment 等e.g. What were you doing at 10 yesterday morning? I was wr
8、iting a letter to my father at that moment. 2. 過(guò)去進(jìn)行時(shí)1. 概念: 表示過(guò)去某一時(shí)刻或某段時(shí)1.肯定句:S + was/were + doing + .過(guò)去進(jìn)行時(shí)句式結(jié)構(gòu)2.否定句: S + was/were + not + doing + . 3.一般疑問(wèn)句:Was/Were + S + doing + ?4.特殊疑問(wèn)句:What /Where/Why/How 等疑問(wèn)詞+was/were+主語(yǔ)+V-ing (其他)?We werent having an English class at this time last Monday.We we
9、re having an English class at this time last Monday.Were you having an English class at this time last Monday?What were you doing at this time last Monday?過(guò)去進(jìn)行時(shí)句式結(jié)構(gòu)1.肯定句:S + was/were + doing + b: 表示過(guò)去某段時(shí)間內(nèi)正進(jìn)行的動(dòng)作。e.g. We were building a house last winter. They were waiting for you yesterday.否定句和疑問(wèn)句:e
10、.g. We were not sleeping at home. Was he feeling well?b: 表示過(guò)去某段時(shí)間內(nèi)正進(jìn)行的動(dòng)作。3.現(xiàn)在分詞的構(gòu)成1) 一般動(dòng)詞在詞尾加-ing, 如go-going。2) 以不發(fā)音字母e結(jié)尾的動(dòng)詞, 先去掉e, 再加-ing。 come-comingmake-making write-writing3) 以重讀閉音節(jié)結(jié)尾的動(dòng)詞, 如果末尾以一個(gè)輔音字母結(jié)尾, 應(yīng)先雙寫這個(gè)字母, 再加ing,x和w結(jié)尾的除外。如: get-gettingswim-swimming show-showing3.現(xiàn)在分詞的構(gòu)成1) 一般動(dòng)詞在詞尾加-ing, 如g
11、4) 以字母y結(jié)尾的單詞, 直接加ing。如carrying、playing、studying。5) 以字母ie結(jié)尾的動(dòng)詞, 變ie為y, 再加ing。 die dying lie lying6) 以元音字母加e結(jié)尾, 或以e結(jié)尾, 且e發(fā)音的 動(dòng)詞, 直接加- ing。 see-seeingbe-being4) 以字母y結(jié)尾的單詞, 直接加ing。4.使用進(jìn)行時(shí)態(tài)的注意事項(xiàng)1)一些動(dòng)詞, 如see、hear、love、like、know、 remember; understand、have等表示感情、 知覺(jué)和狀態(tài)的詞, 一般不用于進(jìn)行時(shí)態(tài)。2) 在there和here引起的句子中, 常用一般
12、現(xiàn)在 時(shí)代替現(xiàn)在進(jìn)行時(shí)。e.g. Here comes the bus. There goes the bell.4.使用進(jìn)行時(shí)態(tài)的注意事項(xiàng)1)一些動(dòng)詞, 如see、hear5. 過(guò)去進(jìn)行時(shí)和一般過(guò)去時(shí)的區(qū)別1) 過(guò)去進(jìn)行時(shí)表示過(guò)去正在進(jìn)行的動(dòng)作, 而一般過(guò)去時(shí)則表示一個(gè)完整的動(dòng)作。如:They were writing letters to their friends last night.昨晚他們?cè)趯懶沤o他們的朋友。(沒(méi)有說(shuō)明信是否寫完)They wrote letters to their friends last night .他們昨晚寫了信給他們的朋友。(表達(dá)了他們已寫好的意思, 整
13、個(gè)寫的過(guò)程已完成)5. 過(guò)去進(jìn)行時(shí)和一般過(guò)去時(shí)的區(qū)別1) 過(guò)去進(jìn)行時(shí)表示過(guò)去正2) 當(dāng)動(dòng)作延續(xù)較長(zhǎng)時(shí)間時(shí)或表示厭煩、贊美等感情色彩時(shí), 常用過(guò)去進(jìn)行時(shí)表示。如:He was thinking more of others than of himself.他考慮別人的比考慮自己的多。(表示說(shuō)話者贊揚(yáng)的口氣)The boy was always making trouble then .那時(shí), 他總是惹麻煩。(表示說(shuō)話者厭煩的口氣)2) 當(dāng)動(dòng)作延續(xù)較長(zhǎng)時(shí)間時(shí)或表示厭煩、贊美等過(guò)去進(jìn)行時(shí)含義: 表示過(guò)去某個(gè)時(shí)刻 正在進(jìn)行的動(dòng)作。結(jié)構(gòu): was/were + doing例句:I was having
14、an English class at this time yesterday. 現(xiàn)在進(jìn)行時(shí)含義: 表示現(xiàn)在 正在進(jìn)行的動(dòng)作。結(jié)構(gòu): is/am/are + doing例句:I am having an English class. 6. 過(guò)去進(jìn)行時(shí)含義: 表示過(guò)去某個(gè)時(shí)刻現(xiàn)在進(jìn)行時(shí)含義: 表示現(xiàn)在4a. Look at the table and write sentences with both while and when.4a. Look at the table and write.g. While John was taking photos, Mary bought a drin
15、k.John was taking photos when Mary bought a drink.While John was playing the piano, Mary left the house.John was playing the piano when Mary left the house.e.g. While John was playing thWhile John was shopping, Mary took the car to the car wash.John was shopping when took the car to the car wash.Whi
16、le John was cleaning his room, Mary turned on the radio.John was cleaning his room when Mary turned on the radio.While John was shopping, Mary 4b. Fill in the blanks with was, were, when or while.At 7:00 a.m., I woke up. _I _making my breakfast, my brother_ listening to the radio. _I was eating, the
17、 radio news talked about a car accident near our home. My brother and I went out right away to have alook. _we got to the place of the accident,the car _ in bad shape from hitting a tree. But luckily, the driver _fine. The roads_ icy because of the heavy snow from the night before.While waswasWhile
18、When was was were 4b. Fill in the blanks with wa4c. What were you doing at these times last Sunday? Fill in the chart. Then ask your partner.A: What were you doing at nine oclock last Sunday morning?B: I was sleeping. How about you? A: I was doing my homework.B: Youre kidding!4c. What were you doing at the1. What _ (be) you _ (do) when he arrived?2. Jim _ (slee
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