Unit 3 Grammar Focus（PPT课件）-【学海风暴】2024-2025学年八年级下册英语同步备课（人教版）

八年级英语人教版·下册 Unit 3 Grammar Focus 授课人：XXXX YUHENG 四一、新课引 You want to use the computer. Could I use the computer? You want the door opened. 0 Could you pleaseopen the door 四二、新课讲 解 Grammar Focus Could I go out for dinner with my Sure,that should be OK. friends? Could we get something to drink after No,you can't.You have a the movie? basketball game tomorrow. Could you please take the dog for a OK,but I want to watch one walk? show first. Could you please take out the rubbish?Yes,sure. 情态动词coud coud用于礼貌地向对方提出要求或请求。 也可用于提出建议，比can语气委婉。 l.Could you(please)+V-原形？ 表示委婉地提出请求 例如：1)-Could you please clean your room? -Yes,sure./Of course.Certainly./All right. 2).-Could you please do the dishes? -Sorry,I can't.I have to do my homework. 四二、新课讲 解 2.Could I/we+V-原形？ 表示向别人征询许可。 如：Could I go out tonight,,Mom? -Yes,you can./No,you can't. YUHENG 国二、新课讲 解 请求及答语 在表示请求帮助或请求允许的疑问句中，常用could代替can,表示礼貌，委婉或不 确定，而can则不具备这些语气。用could是为了表示礼貌的请求。 表示请求帮助或请求允许时，除了can,could之外，还可以用may,可以用不同的方式 来表示同一个概念。例如： D Could/Can/May I use your car for a day? 2I wonder if I could use your car for a day? 同意可说Yes或sure或Certainly,Yes,(do)please.或Of course,(you may/can).或Go ahead,please.That's OK/all right; 不同意，可以说I'm sorry you can't.或I'm really sorry,but I have to use it today.要避免 说No,you can't.这样很不礼貌。否定回答通常用委婉语气。 UHENG 四二、新课讲 解 请求及答语 3 Do you mind if I use your car for a day? Never mind.Not at all,.表“不介意”。不能用Yes./Sure./Of course./Certainly.等。 无论肯定还是否定应答中，要避免使用could,要用can或may。 因为应答须用确定的语气。而could在表请求的问句中是为了表 示礼貌或委婉语气，用在应答中侧成了不确定语气，与情理不 符。所以应答中不说Yes,you could.或No,you couldn't.而要说 Yes,you can.Sorry./No,you can't YUHENG 四二、新课讲 解 请求及答语 其他请求句型及回答： Would you like sth.to do sth.? May I do sth.? Shall we do sth.? Would you mind sth./doing sth.? What/How about sth./doing sth.? 肯定▣答有Sure./Of course./Certainly./OK./Great./Well./Good idea./I agree. 等。否定回答有Sory.…/No,you can't.等。 YUHENG 三、归纳小 结 义 用 用法 N 1 情态动词：could YUHENG 可 四、强化训 练 根据对话内容，选用would:或could:完成对话。 John:(1)Would you like some more coffee,dear? Jane:No,Idon't think so.Let's get the bill(账单)， John:OK.Waiter(服务员)，excuse me,(2)could you bring us the bill please? Waiter:Here you are,sir.(3)Could I take these plates away? John:Sure,thank you.(4)Could I have a pen to write my name? Waiter:Sure.By the way,(5)would you like me to get a taxi for you,sir? John:Yes,thanks. YUHENG