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t find her bike. She telephoned the police at once. That`s all 。 ? 2. while總是指一個時間段,從句中必須用延續(xù)性動詞。如。 while從句中必須是表示動作或狀態(tài)的延續(xù)性動詞。如: ? Mary was having dinner when I saw her . ? The boy was still sleeping when his mother got home yesterday morning . 5. 以 when和 while引導(dǎo)的時間狀語從句 ? 2 while表示“在 …… 的時候”、“在 …… 期間”。從句中既可用延續(xù)性動詞,又可用非延續(xù)性動詞,這些動詞既可以表示動作,又可表示狀態(tài)。 5. 以 when和 while引導(dǎo)的時間狀語從句 ? 2)在本單元中,出現(xiàn)了以 when和 while引導(dǎo)的時間狀語從句。 ? 非延續(xù)性動詞指動作極為短暫,瞬間結(jié)束。 my home bedroom bathroom living room kitchen ? Writing Where were the people when the UFO arrived? I was in the bathroom. I was in my bedroom. I was in the kitchen. I was in my barber shop. I was in the barber’s chair. b c f d e What were they doing when he was playing baseball ? They were having a haircut. in the barber shop a barber (do my homework) What were you doing when the UFO arrived? I was doing my homework when it arrived. (visit my aunt) What were you doing when the UFO arrived? I was