(
课件网) a fallen bike a broken car a road accident a car a bike. [hit] 碰撞 What happened in the picture hit hit--hit traffic lights change to red/yellow/green Unit 1 While the lights were changing to red, [ pi ] 出现 a car suddenly appeared. Who saw the accident Ms James. 2.What was the boy doing when he was riding his bike He was listening to music. 3. What was the driver doing round the corner He was talking on his mobile phone. 3. What happened to the boy He fell off his bike and hurt his knee. [raund]转到 [ k :n ]拐角 look/smell/feel/sound+adj wait to do sth wait for sb/sth on time准时 1.fell是fall的过去式。 fall off表示“从……跌落”。 e.g. He fell off the tree and hurt his leg. 他从树上跌落，摔伤了腿。 fall down表示“摔倒”。 e.g. You must watch your step so as not to fall down. 你必须留心脚下才不会跌下去。 look/smell/feel/sound+adj wait to do sth wait for sb/sth appear/disappear on time准时 2. Pay attention, stop at the red lights… pay attention 表示“注意，留心”。 pay attention to n./ v-ing 表示“注意……”。 e.g. You must pay attention to your study. 你必须专心学习。 Please pay attention to spelling. 请注意拼写。 look/smell/feel/sound+adj wait to do sth wait for sb/sth appear/disappear on time准时 When you are riding a bike, think about the risk of an accident! Pay _____ and stop at the _____. Don’t _____ too fast. Don’t ride _____ with your friends. Don’t _____! attention red lights ride side by side listen to music appear attention glad hit side Accidents do not happen very often, I’m (1) _____ to say. However, when you’re riding your bike, pay (2) _____ all the time, especially on the corner of the road and at traffic lights. Don’t ride side by (3) _____ with your friends. Sometimes cars (4) _____ round the corner and don’t stop. They may (5) ___ you. glad attention side appear hit when，while都可以引导时间状语从句，但用法区别非常大。 一、when可以和延续性动词连用，也可以和短暂性动词连用；而while只能和延续性动词连用。 e.g. They arrived while we were having dinner. =They arrived when we were having dinner. 我们吃饭的时候他们到了。 二、由when引导的时间状语从句，如果主句是过去进行时，从句应该用一般过去时，表示一个动作正在进行的时候另一个动作突然发生了，强调后一动作发生的突然性。 e.g. We were talking when the teacher came in. 我们正在讲话，老师（突然）进 来了。 三、当主句和从句的动作都是延续的或同时发生的，两句都用过去进行时的时候，多用while引导。 e.g. They were singing while we were dancing. 他们在唱歌，我们在跳舞。 1. My mother was cooking. My father was watching TV. 2. I was waiting at the bus stop. Jim made a phone call to me. My mother was cooking while my father was watching TV. I was waiting at the bus stop when Jim made a phone call to me. Combine the sentences with “when” or “while” . Safety life with you, life is only once 1.看起来苍白的 2.看到一起事故 3.骑自行车 4.听音乐 5.等着过马路 6.变红色 7. 在拐角附近 8.行驶的很快 9.通过手机交谈 10.汽车撞上男孩 11.我很高 ... ...
