Unit5whatwereyoudoingwhentherainstormcameSectionA程序.pptVIP

2）make sure意为“确认；查明；核实”，其后可接句子或接介词of及宾语，用来引入需要确认的内容。例如： Could you make sure what time he’s arriving? I would like to go and meet him at the airport. 你确认一下他几点到达好吗？我想去机场他。 Make sure you turn off the TV before you leave the house. 在你离开屋子前确认关闭了电视。 3)此句中的work表示机器、器官等的“运作；运转”，这是动词work的一种基本用法。 My watch is waterproof— that means it would work fine even if it’s in water. 我的手表是防水的——这就是说即便在水里它也会正常运转。 My brain isn’t working well now. 现在我的脑子不好使。 3. fall asleep 睡着 He was too tired ,as soon as he lay down he fall asleep. 4. die down 逐渐变弱；逐渐消失 The shouting outside suddenly began to?die?down.. 5. rise v. 升起；增加；提高 The sun rises in the east and sets in the west. What was she doing at the time of the rainstorm? She was doing her homework. What were you doing at eight last night? I was taking a shower. Grammar Focus What was he doing when the rainstorm came? He was reading in the library when the rainstorm came. What was Ben doing when it began to rain heavily? When it began to rain, Ben was helping his mom make dinner. What was Jenny doing while Linda was sleeping? While Linda was sleeping, Jenny was helping Mary with her homework. ?? 以when和while引导的时间状语从句 1) 延续性动词和非延续性动词 ????延续性动词指动作可以延续一段时间, 而不是 瞬间结束。 ????如: work，study，drink，eat等。 ????非延续性动词指动作极为短暂，瞬间结束。 ????如: start，begin，hit，jump，knock等。 2) 在本单元中, 出现了以when和while引导的 时间状语从句。 when表示“当……的时候”，从句中谓语动词既可 用延续性动词, 又可用非延续性动词, 这些动词既可 以表示动作, 又可表示状态。从句中的动作既可 和主句的动作同时发生, 又可在主句的动作之前 或之后发生。如： ????Mary was having dinner when I saw her . ????The boy was still sleeping when his mother got home yesterday morning . while表示“在……的时候，在……期间”。 它强调主句的动作与从句的动作同时发生或 主句的动作发生在从句的动作过程中。while从句中 谓语动词必须是表示动作或状态的延续性动词。如： ????The weather was fine while we were in Beijing . ????She called while I was out. 如果主句的动作在从句的动作过程中发生， 从句常用进行时。如: While we were swimming someone stole our clothes . Don’t talk so loud while others are working. ?总结 ?1) when可指时间点, 又可指时间段, 从句中 可用延续性动词, 也可用非延续性动词。 ?2) while总是指一个时间段, 从句中必须用延 续性动词。 倍速课时学练 倍速课时学练 Unit 5 What we