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1、Unit 5What were you doing when the rainstorm came?第三課時(Grammar Focus4c)單元同步語法精講精練浙 江 地 區(qū) when與while引導的時間狀語從句when引導的時間狀語從句：說明一個動作發(fā)生時，另一個動作正在進行；也可表示正在進行某一動作時，另一動作發(fā)生了。eg：When the teacher came into the classroom， we were reading English.當老師走進教室時，我們正在讀英語。When Kate was flying a kite， she found a wallet ly

2、ing on the ground.當凱特正在放風箏時，她發(fā)現(xiàn)地上有個錢包。 while引導的時間狀語從句：表示某個動作正在進行的同時，另一動作也在進行之中，這時主從句都用進行時態(tài)，有對同類的兩個動作進行對比的意味；也可表示某個動作正在進行時，另一動作發(fā)生了(該動作用一般過去時)。eg：While I was playing the piano， she was dancing.我在彈鋼琴，她在跳舞。While she was reading， the telephone rang.當她正在看書時，電話鈴響了。 一、用括號中所給單詞的適當形式填空。1 She _(take) a dance l

3、esson at two oclock yesterday afternoon.2 Tim cant pick up the phone because he _(help) his mom with housework now.3 Mary was listening to music when I _(come) in.4 Lucy usually _(go) to school by bike.5 Harry _(visit) the museum with me last Friday.6 My sister was watching TV while I _(read) a book

4、.was taking is helpingcamegoesvisited was reading 二、句型轉(zhuǎn)換。7 Mike was cleaning the classroom with his classmates at this time yesterday.(改為否定句)Mike _the classroom with his classmates at this time yesterday.8 While we were waiting for the bus， someone fell down.(用when改寫句子)We were waiting for the bus _ someone _ down.9 Kate was playing chess with her sister at this time yesterday.(改為一般疑問句)_ Kate _chess with her sister at this time yesterday? 10 Sam was_walking_on_the_road when I saw him.(對畫線部分提問)_ Sam _when you saw him?wasnt cleaning when fellWas playingWhat was doing