江蘇省揚中市同德中學八年級英語上冊 8A Unit8Natural disasters 課件2

What is the girl doing now?She is running now.What was the girl doing just now?She was running just now.What is the boy doing now?He is jumping now.What was the boy doing just now?He was jumping just now.What is the bear doing now?He is skiing nowWhat was the bear doing just nowHe was skiing just now.1.過去進行時主要表示：過去進行時主要表示：在過去某一時刻正在進行的動作在過去某一時刻正在進行的動作 （a）They were eating breakfast at 7:00 am yesterday.（b）I was writing a letter at this time yesterday.（c）Five minutes ago,Danny was looking out of the window and Suzy was reading a book.在過去某一階段一直在進行的動作在過去某一階段一直在進行的動作 （a）From 1983 to 1998,he was teaching at in Beijing.（b）They were building a house last winter.2.過去進行時的句式過去進行時的句式 （1 1）基本結(jié)構(gòu)：）基本結(jié)構(gòu)：was/were+verb-ing （2 2）否定式：）否定式：was/were not+verb-ing was not=wasnt were not=werent （3 3）疑問句：）疑問句：將將 was/were 調(diào)到主語前調(diào)到主語前 （4 4）I/he/she/it was+verb-ing you/we/they were+verb-ingWere they?Was he.?Were they?Was she.?Was he.?Was it.?at this time yesterdayat 10 a.m.this morningfrom 4 to 5 last Sundayv at 8:00 yesterday morning v at this time yesterdayv from 8 to 9 last night I was eating choudoufu.They were eating yangrouchuan.At 10 a.m.this morning at 10 a.m.this morningI was reading a guidebook infront of Xuanwu Lake.She was shoppingfrom 8 to 9 last nightat this time yesterdayafternoonWe were visiting beijing.B.Past continuous tense with while and whenWhat was the rabbit doing just now?What was the pig doing just now?He was jumping just now.He was dancing just now.The rabbit was jumping while the pig was dancing.The worm was eating while the dog was reading.Two long actions went on at the same time.The rabbit was jumping while the pig was dancing.The worm was eating while the dog was reading.While the pig was dancing,the rabbit was jumping.While the dog was reading,the worm was eating.連詞連詞 while 與過去進行時與過去進行時 當兩個延續(xù)性動詞同時進行時，我當兩個延續(xù)性動詞同時進行時，我們可以在兩個句子中都用過去進行時，們可以在兩個句子中都用過去進行時，并用并用 while 連接。連接。當當 while 用在句首時，兩個句子應用用在句首時，兩個句子應用逗號隔開逗號隔開。When 和和 while 的區(qū)別的區(qū)別:2.The earthquake started while I was doing some shopping.3.I was trying to find my way out when I suddenly heared some noise above me.1.People were running wildly while pieces of glass and bricks were falling down.當延續(xù)性動作進行的同時也有別的動作發(fā)生當延續(xù)性動作進行的同時也有別的動作發(fā)生,用用when或或while 連接連接兩動作兩動作.延續(xù)性動作用延續(xù)性動作用過去進行時而短暫性動作用過去時過去進行時而短暫性動作用過去時.Conclution:Finish the exercises of page101.2.While Daniel was making a snowball,he fell over.3.Suzy was making a snowman while Kitty was standing beside her.4.Peter was hiding behind the tree when a snowball hit him.5.Andy ran towards Millie while she was taking some photos.