高中英语外研版必修4Module 2 Traffic Jam课文课件ppt
展开Mdule 2Traffic Jam
Imperatives
T knw the usage f the imperatives
Lk at the signs and say what they d.
Turn right.
Dn’t g faster than 90 kph.
Dn’t turn left.
1. They give advice.2. They give instructins.3. They give infrmatin.4. They give permissin.
表示命令、请求、建议、劝告、警告或禁止的句子叫祈使句。祈使句的主语一般为yu,通常省略,谓语动词使用原形,句末用感叹号或句号。
一、形式1. 肯定结构(1) D型(行为动词原形开头) e.g. Fllw the rules f the rad. 遵守交通规则。有的祈使句在意思明确的情况下可省略动词。e.g. This way, please.=G this way, please. 请这边走。
(2) Be型(系动词be开头) e.g. Be sure t get here befre nine. 一定要九点钟以前到这里。(3) Let型(Let's/Let sb.+动词原形) e.g. Let's have a meeting this afternn. 今天下午我们开一个会吧。 Let me have a try if yu dn't want t. 如果你不想,就让我试一试吧。
二、否定结构(1) D型和Be型的否定式都是在句首加Dn't或Never构成。即:Dn't/Never+动词原形 e.g. Dn't be late tmrrw. 明天不要迟到。 Never put ff what yu shuld d till tmrrw. 今日事今日毕。
(2) Let型祈使句的否定式有两种: Dn’t+let+宾语+动词原形(+其他成分); Let's nt+动词原形(+其他成分)。 e.g. Dn't let the children play in the street. 别让小孩在街上玩耍。 Let's nt waste time. 咱们别浪费时间了。
三、N+名词/动名词。此类否定祈使句多表示禁止。e.g. N smking! 禁止吸烟! N phts in the rm. 该房间不许拍照。
四、祈使句的反意疑问句1. 祈使句为肯定句,其反意疑问句用will yu/wn't yu。 e.g. Cme t have dinner with us this evening, will yu/wn't yu? 今晚来和我们一块儿吃饭,好吗?2. 祈使句为否定句,其反意疑问句用will yu。 e.g. Dn't smke in the meeting rm, will yu? 不要在会议室抽烟,好吗?
3. Let开头的祈使句构成反意疑问句时,除Let's开头的用shall we外,其他的均用will yu。 e.g. Let's take a walk after supper, shall we? 我们晚饭后散散步,好吗? Let us g swimming, Mum, will yu? 妈妈,让我们去游泳,行吗?
五、祈使句的强调形式 1. 为了表示强调或加强命令、劝告的语气,使句子更具有说服力,常在其谓语动词前加上d。 e.g. D be careful next time! 下次一定要仔细! D tell me where t buy the tickets fr the cncert. 告诉我去哪里买音乐会的票。
2. 为了加强语气或指明同谁说话,可在动词前加上主语。加上主语时,由于是面对面说话并直呼其名,故不论第几人称,动词均用原形,不考虑主谓一致问题。 e.g. Mary, cme here — everybdy else stay where yu are. 玛丽过来,其他人都别动。 Yu be quiet!你安静点!
六、祈使句+and/r (therwise)+陈述句这种句型中的祈使句可改为if引导的条件句。and表示顺承关系,意为“那么”;r (therwise)表示转折关系意为“否则”。e.g. Use yur head, and yu will find a way. =If yu use yur head, yu will find a way. 动动脑筋,你将会找到方法。
Hurry up, r yu'll be late.=If yu dn't hurry up, yu'll be late.快点,否则你将会迟到了。在这两个句型中,祈使句可以是一个名词短语,陈述句中常使用一般将来时(will d)。
I. 根据汉语意思补全下面句子。1. 你过来一下! 我有事情要告诉你。 ________________! I have smething t tell yu.2. 下一次不要再迟到了。 ______________ again next time.
Dn't be late
Yu cme here
3. 琳达,今天你打扫房间,好吗? Linda, yu clean the rm tday, ________________?4. 我们喝一杯咖啡, 好吗? _______________________, shall we?5. 快走,否则你就赶不上公共汽车了。 G quick, ____________________.6. 我们不要告诉她发生了什么。 _________________________________ what happened.
Dn't let's tell her/Let's nt tell her
will / wn't yu
Let's have a cup f cffee
r yu'll miss the bus
II. 根据括号内的汉语提示补全下面对话。David: Mnica, I'm thirsty. ________________________________ (请给我一些喝的).Mnica: OK, here is a glass f milk. David: I was just playing sccer and _____ _________________ (让我喝一杯冰饮料吧). Mnica: ___________________________________________ (刚运动完, 不要马上喝冷的东西). It's nt healthy.David: Thanks. It desn't matter. I have been used t that. Mnica: OK. Here yu are.
Dn't drink anything cld right
smething t drink please
have an iced drink
after exercising
In any unsafe situatin, simply _______ (press) the buttn _______ a highly-trained agent will get yu the help yu need. (2018 北京)2. Always _______ (keep) in mind that yur main task is t get this cmpany ________ (run) smthly. (2015 湖南)
Other signs
Activity 3. Read these ds and dn’ts fr mtrists stuck in a traffic jam. Tick the nes yu agree with.
Ds□Switch ff the mtr.□Turn n the car radi.□Speak t yur passengers.□Fllw the rules f the rad.□Keep cl.
Dn’ts□Leave the mtr n. □Blw yur hrn.□React when thers drive badly.□Break the rules f the rad.□Get angry.
I. Cmplete the fllwing sentences.
1. ________ n the pavement. 2. _____ in the bicycle lanes. 3. _____ at red traffic lights. 4. ______ the rules f the rad.
break g keep lk ride stp stay watch ut
5. _________ fr pedestrians (行人). 6. ______ behind yu befre yu turn right r left. 7. __________ in the middle f the rad.
Watch ut
II. Translatin.
进我房间之前请先敲门。2. 别忘了完成你的家庭作业。3. 我们星期日去看电影吧!
Please knck at the dr befre yu enter my rm.Dn't frget t finish yur hmewrk.Let's g t the cinema n Sunday.
4. 让我给你拿一些喝的吧。5. 给我一个机会,我就给你一个惊喜。6. 穿上你的外套,不然你会感冒的。
Let me get yu smething t drink.Give me a chance, and I'll give yu a surprise.Put n yur cat, r yu will catch a cld.
1. Review Grammar.2. Finish the exercises 1-3 n page 73.
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