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1、（陕旅版）四年级英语下册教案（陕旅版）四年级英语下册教案 Lesson 10 You must be careful.前面我们已经学习过情态动词 May 和 can 的意义和用法以及祈使句。本节课我们继续学习情态动词 must 的意义和用法，进一步学习祈使句的肯定、否定形式。在学习有关交通方面的词汇和句型的基础上，让学生了解一些简单的交通知识，并自觉遵守交通规则。 教学目的及重难点分析：教学目的及重难点分析：1 会说会用这些句子：You must be careful. The light is green and you can crass.What does it mean?2.会说会用会
2、写这些单词: stop, traffic lights, red, green, cross, park 3 进一步学习情态动词 can ,may 的基础上学习 must 的意义和用法。 课前准备：课前准备：1 教师准备交通标识牌，红绿灯等。2 录音机和相关部分的录音带。3 stop, traffic lights, red, green, cross, park 的单词卡片。.4 老师以 55 页的图片为参考,制作一个 flash 课件。5 教师准备 57 和 58 页的交通标识牌。6 老师准备蓝色的玩具汽车，交警帽等。 教学过程：教学过程：1. 热身（Warming up）1）老师播放事先
3、准备的 flash 课件引出话题，课件内容可这样设计对话：P: Stop, stop! A car is coming.G: Oh, dear! Sorry.P: It doesnt matter. But you must be careful. Look at the traffic lights. The light is red and you must stop. The light is green and you can cross.G: The light is yellow now, what does it mean?P: It means“ wait a moment”G
4、: Oh, I see. Thanks a lot.2）Listen and do: 由老师发指令，全班学生站起来集体做，也可以请一组学生站在前面来做，指令由慢到快。做错的人罚坐下，做到最后的人获胜。指令为： Turn right. Turn left. Turn right. Turn right. Turn left. Turn back, Turn right. Turn left. Turn left. Turn right. Turn back. Turn right. Turn left. Turn right.指令中 Left, right ,back 无规律。此游戏也可以请一组
5、学生站在前面来做，由全班同学看着老师的暗示统一发指令进行。2.新课展示（New Presentation）老师通过准备的蓝色玩具汽车，红绿黄灯的标识牌，以及常见的交通标识牌等讲解本课重点句型和词汇：1） T:老师和学生一起边唱边做动作。原地踏步做动作：Step, step, step.Step right, step left.Step right, step left.Turn right, turn left.Turn right, turn left.Turn, turn, turn.T: Stop, Stop.（食指指着另一掌心）. Dont move. Dont turn right
6、. Dont turn left.2）老师拿出一辆蓝色玩具汽车：Whats this?Ss: Its a car.T: What colour is it?Ss: Its blue.T: 老师拿出红灯问，What colour is the light?Ss:老师引导学生说： Its red .Its a red light.并在教室里找出红色并指给学生看，Red, red, Its red.T: 老师拿出绿灯问：What colour is the light?Ss 老师引导学生说：Its green. Its a green light. 并在教室里找出绿色并指给学生看，Green, gr
7、een, Its green.T: 老师拿出黄灯问 What colour is the light?Ss: 老师引导学生说：Its yellow. Its a yellow light. 并在教室里找出黄色并指给学生看，yellow, yellow, its yellow.T:拿出红、绿、黄灯的标识牌, How about this?Ss: They are red light, yellow light and green light.T: 老师引导学生说：They are traffic lights. Traffic lights. Traffic lights 指交通信号灯。3)T:
8、今天我们玩一个“红灯停，绿灯行”的游戏，T: The light is red(举起红色的灯)and you must stop.The light is green(举起绿色的灯）and you can cross.（示词卡）并边走边说：cross, cross, cross the street.（举起黄色的灯）： What does it mean? 看着学生茫然的表情，老师继续问：How about yellow?Ss: Wait a moment。T: Yes, It means “wait a moment”. Now lets begin. (举起红色的灯）The light i
9、s red. Can you go?Ss: No, You must stop.T:（举起绿色的灯）The light is green now.Ss: We can cross.T:老师拿玩具汽车开来并伴有汽笛声音： Hi, stop! A car is coming.Ss: Oh, dear! Sorry.T: It doesnt matter. But you must be careful. careful 由名词 care 加后缀- ful 构成，是形容词。我们不能直接跟在 must 的后面，因而我们在他后面加了系动词 be。T:（出示 park 的示词牌）What does it
10、mean?Ss: It means “You can park here”.T:（出示禁止停车的示词牌）How about this?Ss: Dont park here.T:（出示禁止穿过马路的示词牌）What does it mean?Ss: It means“ Dont cross the road.”T:（出示禁止左转的示词牌）How about this?Ss: Dont turn left.T: Stop, stop! We stop here today.3 小结：Must 和我们之前学过 can ,may 的一样都是情态动词，后直接跟动词原形. Must 是“一定、必须“的意思
11、，用来表示对某人的要求。如：You must do your homework now. You must go to school today.4 巩固活动：遵守交通规则游戏：老师可把教室的过道当成街道，然后分别让几个学生在每个十字路口充当小交警。在让几个学生扮演行人，老师下口令 turn left, turn right, turn back，go 等，看他们是否遵守交通规则。5.听录音学习对话：T: Lets listen to a dialogue, then answer the questions.（播放对话部分录音, 抢答。抢答正确者为所在的组赢得一分，看哪组是今天的获胜小分队。
12、 ）T: What is coming?Ss: A car is coming.T: What should you look at?Ss: You must look at the traffic lights.T: The light is red. Can you go?Ss: No, you must stop.T: The light is green. Can you go?Ss: Yes, you can go and cross .6. 播放 Listen, look and match 部分录音.听并连线，看看哪个句子和哪幅图意匹配。 7.做 Lets Practice(I)
13、.交通标识牌知多少？老师让每组推选出一个小交警，然后出示事先准备的 57、58 页的交通标识牌让他们抢答，抢答正确的为各自的组赢得一朵红花，看谁是交通百事通。如：老师举起图 1 问： What does it mean?S1 It means “Dont stop here. You must be careful”图 2 “Dont park here.”图 3 “Dont cross the road.”图 4 “Dont turn left.”8. 做 Lets Practice(II).（做红灯停，绿灯行的游戏） ，T: Look !What are they ？red light, green light and yellow light.Ss: Oh, yes. Traffic lights, traffic lights, look at the traffic lights.T: The light is red. Can you go ? Ss: No, you must stop.T: The light is yellow. What does it mean?Ss: It means “wait a moment”.T: Green light now, Ss: Lets go.
