家庭復四 Unit 4 Don't eat in class. Section A
Unit 4 Don’t eat in class. Section A
导 积累与巩固 航 思考与探究
导航 积累与巩固 思考与探究
积累与玖固 ©预习作业 翻译词组。 1.校规 2.在走廊里跑 3.上课迟到 4.在教室里听音乐 5.不准打架 导航页
导航页 积累与巩固 ◉预习作业 翻译词组。 1. 校规 school rules 2. 在走廊里跑run in the hallways 3. 上课迟到arrive/be late for class 4. 在教室里听音乐listen to music in the classroom 5. 不准打架don’t fight
6.准时 7.安静 8.穿校服， 9.餐厅 10.不得不 导航页
导航页 6. 准时 (be) on time 7. 安静 be quiet 8. 穿校服wear uniforms 9. 餐厅 dining hall 10.不得不have to
思考与探究 ⊙知识讲解 I.祈使句的两种类型。 (1)第一种祈使句，肯定式以动词原形开头，否定式在动词原形 前加don't。如： Come here. Open the door. Don't come here. Don't open the door. 导航页
导航页 思考与探究 ◉知识讲解 Ⅰ. 祈使句的两种类型。 (1)第一种祈使句,肯定式以动词原形开头, 否定式在动词原形 前加don’t。如: Come here. Open the door. Don’t come here. Don’t open the door
(2)第二种祈使句以Iet开头，常用于第一、三人称，表示建议、 邀请和劝说等。如： Let me help you. Let me think. Let me buy you a drink. Don't let the rope go. Don't let him get away! 导航页
导航页 (2)第二种祈使句以let开头,常用于第一、三人称,表示建议、 邀请和劝说等。如: Let me help you. Let me think. Let me buy you a drink. Don’t let the rope go. Don’t let him get away!
II.have to&must。 have to不得不（客观） must必须（主观） Do what you have to,not what you want to. 做你应该做的，而不是你想做的。 导航页
导航页 Ⅱ.have to & must。 have to不得不(客观) must必须(主观) Do what you have to, not what you want to. 做你应该做的, 而不是你想做的
(1)两词都是“必须”的意思，must通常表示的是说话人的主观 看法，语气比较强烈，而have to往往强调客观需要。 My brother was very ill,so I had to call the doctor in the middle of the night. 我弟弟病得很厉害，因此我不得不半夜把医生请来。（客观上 需要做这件事) He said that they must work hard. 他说他们必须努力工作。（主观上要做这件事） 导航页
导航页 (1)两词都是“必须”的意思, must通常表示的是说话人的主观 看法, 语气比较强烈,而have to往往强调客观需要。 My brother was very ill, so I had to call the doctor in the middle of the night. 我弟弟病得很厉害, 因此我不得不半夜把医生请来。(客观上 需要做这件事) He said that they must work hard. 他说他们必须努力工作。(主观上要做这件事)
(2)have to可以用于不同的时态，有人称和数的变化。must一 般只表示现在，没有人称和数的变化。 He had to look after his sister yesterday. 昨天他不得不照顾他的妹妹。 (3)don't have to表示“不必”，mustn'表示“不准；禁止”。 You don't have to tell him about it. 你不必将此事告诉他。 You mustn't tell him about it. 你一定不要把这件事告诉他。 导航页
导航页 (2)have to可以用于不同的时态,有人称和数的变化。must一 般只表示现在,没有人称和数的变化。 He had to look after his sister yesterday. 昨天他不得不照顾他的妹妹。 (3)don’t have to表示“不必”, mustn’t表示“不准;禁止” 。 You don’t have to tell him about it. 你不必将此事告诉他。 You mustn’t tell him about it. 你一定不要把这件事告诉他
©限时练习 I.根据句意及汉语提示写出所缺单词。 1.Are there many (规则)in your school library? 2.The teachers tell us not to run after others in the (走廊). 3.He is a good boy.He never (打架)with others. 4.Our school has a big (餐厅)hall. 5.Learning English well is (重要的). 导航页
导航页 ◉限时练习 Ⅰ.根据句意及汉语提示写出所缺单词。 1. Are there many rules (规则) in your school library? 2. The teachers tell us not to run after others in the hallways(走廊). 3. He is a good boy. He never fights (打架) with others. 4. Our school has a big dining(餐厅) hall. 5. Learning English well is important (重要的)