Unit 1 While the lights were changing to red ,a car suddenly appeared课件.pptVIP

Module 8 Accidents Unit 1 While the lights were changing to red, a car suddenly appeared.;What was happening in the picture?;New words;New words;1.Look at the picture and say what is happening. Use the words in the box to help you.;2.Listen and underline the correct words.;Listen and answer;3.Now complete the following advice. ;Language points;一、While the lights were changing to red, a car suddenly appeared round the corner.当交通灯变红 时，一辆汽车突然在拐角附近出现。 while只能表示某一段时间，不能表示某一点时间。 在while引导的时间状语从句中，其谓语动词只能是 延续性的，而且也只能与主句中的谓语动词同时发 生或存在。 1.While Jim was mending his bike, Lin Tao came to see him. 正当吉姆修自行车时，林涛来看他。 2.You can’t do your homework while you’re watching TV. 你不能一边看电视一边做家庭作业。;二、When I was driving along the road , the accident happened.当事故发生时，我正沿着马路开车。 when既可表示某一点时间，也可以表示某一段时 间 。在when引导的时间状语从句中，其谓语动词 可以是延续性的，也可以是非延续性的，可与主句 中的谓语动词同时发生，也可在其后发生。 1.I was just reading a book when she came into my room. 她走进我房间时，我正在看书。 2.Were you writing a letter when the teacher came in? 老师进来的时候，你在写信吗？;when和while的区别还在于：while引导的时间状语从句多用进行时态，而when引导的时间状语从句多用一般时态。 1.While they were talking , the bell rang. 在他们谈话的时候，铃响了。 2.I was doing my homework when my mother came back home yesterday evening. 昨天晚上妈妈回家的时候，我正在做家庭作业。 ;单项选择 1.When the teacher came in , the students______. A.talk B.talked C.were talking 2.Be careful when you _____ the road. A.across B.cross C.are acrossing 3.Jim _____ his bike and hurt his leg. A.fell B.fell down C.fell off;根据汉语意思完成句子 1.他脸色看起来苍白。 He _____ ______. 2.当你骑自行车时，一定要考虑到发生事故的危险。 When you ____ ____ your bike, think about ___ ____ ____ an accident. 3.还有其他什么事吗？ __________ _____?;Homework Write a report about an accident which you saw.; Never put off what you can do today until tomorrow！ 今日事今日毕！