Unit 4 Section A (Grammar Focus－3c) 课件 2023-2024学年鲁教版（五四学制）英语七年级下册

Section A Part 2　Section A (Grammar Focus－3c) 　Unit 4 　 Don't eat in class. 英语 祈使句 (一)祈使句的定义 祈使句一般用来表示请求、命令、建议、警告等。祈使句的对象(主语)是第二人称you，通常被省略。句末用感叹号或句号，朗读时常用降调。在表达请求或劝告时，可在祈使句前或句末加上please，使句子的语气更加委婉或客气。祈使句一般没有时态的变化，也不能与情态动词连用。 语法导学 阅读技能训练 (二)祈使句的形式 ◆肯定祈使句 (1)Do 型 —— 动词原形(＋ 宾语)＋其他成分 如：Open the door，please.　请打开门。 (2)Be 型 —— Be＋ 表语(名词或形容词)＋其他成分 如：Be careful when you come across the street.　过马路时要小心。 (3)Let 型 —— Let ＋ 宾语 ＋ 动词原形 ＋ 其他成分 如：Let's go traveling.　咱们去旅游吧。 语法导学 阅读技能训练 ◆否定祈使句 (1)Do 型和Be 型的否定式，在句首加Don't 或Never。 如：Don't be late again.　不要再迟到了。 Never forget me！　别忘了我！ (2)Let 型的否定式分两种： ①let开头的祈使句，如果后面接第一、第三人称名词或代词的宾格，可在let前加don't，也可在let后宾格的名词或代词后面加not。 语法导学 阅读技能训练 如：Don't let me go with him tomorrow.＝Let me not go with him tomorrow. 明天不要让我和他一起去。 ②如果是以let's开头的祈使句，必须在let's后面加not。 如：Let's not go swimming there.　我们别去那里游泳吧。 (3)No＋名词或动词 －ing形式，表示禁止做某事。 如：No photos！　禁止拍照！　　No talking！　禁止说话！ 语法导学 阅读技能训练 ————基础夯实———— 一、单项选择。 ( )1.— Excuse me，can you tell me where the nearest bank is? — Just ________ going for two more blocks and you'll see it. A．keep B．to keep C．keeping D．keeps ( )2.________ so fast in the hallways.It's dangerous. A．Not run B．No run C．Don't run D．Doesn't run 语法导练 A C 写作技能训练 ( )3.—________be late for school，Tom! — Am I late? There are five minutes left，I think. A．Couldn't B．Don't C．Mustn't D．Can't ( )4.— Let's ________to the movies now. — That________ great. A．going；sounds B．go；sounds C．go；sound D．going；is sounds ( ) 5.— Does Tom have to take the bus to school? — ________.That's because he can't ride a bike and it's too far. A．Yes，he has B．Yes，he does C．No，he hasn't D．No，he doesn't 语法导练 B B B 写作技能训练 二、用所给单词的适当形式填空。 1．Please don't be ________(noise)．The baby is sleeping. 2．Please remember ___________(bring) your notebook here tomorrow. 3．___________ (not arrive) late for work. 4．Do you have to ________(wear) school uniforms every day? 5．“Please be quiet.No _____________ (talk)！” my teacher says. 语法导练