Lesson 17课时教案

Unit 3 We should obey the rules. Lesson 17 教学设计

一、教学目标

1、To learn the new wordsand phrases: must, mustn’t ,cross the street, spit, litter ,wait for, on the ground.

2、To learn and master the sentences:You mustn’t cross the street.You must wait for the green light.You mustn’t pick the flowers. You mustn’t spit on the ground. You mustn’t litter. 3、To learn the concersation.

二、教学重难点

1. To learn the new words:must, cross, street, green light, grass,

2. To learn and master the sentences :You must keep off the grass. You mustn’ t cross the street. You mustn’ t spit on the ground. You mustn’ t pick the flowers. You mustn’ t litter. You must take good care of young children.

3. Important phrases:pick the flower, spit on the ground, litter, take good care of, cross the street

4. 重点语法:

情态动词 must 的用法

1. (表示义务、命令或必要)必须、应当。

2. (表示推断或指具有较大的可能性,常与 be 连用。否定句用 can

not be)必定、很可能。

3.表示请求(may , can也有这种用法,但 must 的语气更重) 。

4. (表示不可避免性或肯定性)必然要、必定要。

5. (表示与说话人的愿望相反及不耐烦语气)偏要。注意:must 的否定式 must not可以缩写成 mustn’t ,表示禁止、不允许。表示“不必要”时用 needn't 。

三、课前准备

ppt, textbook, cards,视频

四、教学步骤

1. Step 1: Warm-up (review some phrases and sentences )

1)Greetings:Good morning boys and girls.

2)Let’s chant.Together

3) Show some phrases:go home late, do housework,go home,go to bed and so on.

3).Show the phrases pictures to lead in the new verb phrases and ask What bad things can you see?Do they obey the rules?S answer cross the street,spit on the ground.

设计意图:引领学生进入英语学习状态,为课上的练习作好铺垫。Step 2: Presentation

( teach the new phrases )

1 Look at the picture and discuss. What do you want to say to them?

2)Listen to the PPT and answer the questions. What do our friends say to them?

3) lead in the new verb phrases :You must keep off the grass. You mustn’ t cross the street. You mustn’ t spit on the ground. You mustn’ t pick the flowers. You mustn’ t litter. You must take good care of young children.

设计意图:利用PPT引出课堂上所要讲的短语,为新授新短语做铺垫4)Show some Public Places Sign and learn how to read. 设计意图拓展新知识-指示牌,认识更多的指示牌

Step 3:Summary

Show somg phrases choose ues must or mustn’t

Step 4: Homework

Set homework

设计意图:师生互动,总结本节课所学知识,布置归纳作业,培养学生对短语的归纳能力。

Step5: Blackboard Designing

Unit3 Lesson17

You must keep off the grass.

take good care of young children.

You mustn’ t cross the street.

spit on the ground.

pick the flowers.

litter.