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. (二) 描述一件事發(fā)生的背景; 一個長動作發(fā)生的時候,另一個短動作發(fā)生(長動作用過去進行時,短動作用一般過去時)。 0 據(jù)說,她去年寫了一本小說。 昨天夜里下了一夜的雪。 He was playing basketball at 5 this afternoon. 當我進去的時候,她正在寫一篇作文。過去進行時 過去進行時: I was walking down the street when it began to rain. When it began to rain I was walking now I was walking down the street when it began to rain. I was not walking down the street when it began to rain. Were you walking down the street when it began to rain? ? 1關(guān)鍵詞: was/were doing ? 句子結(jié)構(gòu): ? 肯定句:主語 +was/were+現(xiàn)在分詞 +其他 ? 否定句: 主語 +was not/were not+現(xiàn)在分詞 +其他 ? 疑問句: was/were+主語 +現(xiàn)在分詞 +其他 ? ⑴ 肯定句: 主語 + was/were + (doing) + 其他 . ? I was playing basketball at 6:30 yesterday. ? He was playing the piano at that moment. ? They were doing homework at 8:00 last night (2)否定句: 主語 + was/were + not + ( doing) + 其他 ? I wasn’t playing basketball at 6:30 yesterday. ? He wasn’t playing the piano at that moment. ? They weren’t doing homework at 8:00 last night. ⑶ 一般疑問句: Was/Were + 主語 + (doing) + 其他 ? Were you playing basketball at 6:30 yesterday? Yes, I was./No, I wasn’t. ? Was he playing the piano at that moment? Yes, he was./No, he wasn’t. ⑷ 特殊疑問句: 特殊疑問詞 + 一般疑問句 ? What were you doing at 8:00pm yesterday? ? Where was he working at that time? ? 標志性詞語 ? ( 1) at that time. at that moment. yesterday evening ? ( 2)以 when引導的謂語動詞是一般