Unit 3 We should obey the rules. Lesson 17 课件（19张PPT）

课件19张PPT。Unit3 We should obey the rules. Lesson 17Step1 热身练练练一、写出句子中所缺的介词。1.Peter is a good boy ____ school.
2.He often makes a mess ____ his room.
3.He is not a good boy ____ home.
4. Peter’s mother writes some home rules ____ him.
5. He often reads ____ bed.
atatinforinYou should…/You shouldn’t…
ReviewStep2 Presentation
What do you think of them?Do they obey the rules?Look at the picture and discuss.Just talkshouldshouldn’tV.原形mustmustn’tLearn the new words and phrase
检查师友朗读情况 must: aux. 必须，一定
mustn’t = must not:禁止 ; 不可以 ; 不许You should get up early.
You must get up early.
You shouldn’t go to bed late. You mustn’t go to bed late.
Read and remember(读读记记) 1 look out 当心 2 cross the street 过马路 3 wait for the green light等到绿灯 4spit on the ground随地吐痰 5 litter 乱丢杂物 6 keep off the grass 不要进入草地 7pick the flowers 摘花 8take good care of young children 照看好儿童 Step3 practice
Just talkYou mustn’t ________ the street now.crossJust talkYou mustn’t ________ on the ground.spitJust talkYou mustn’t ________ the flowers.You must ____________ the grass.keep offpickJust talkYou must _______________ young children.You mustn’t _________.littertake good care of尝试用You should或You shouldn’t 将下列短语造句 1.cross the street 过马路 2.wait for the green light等到/待绿灯 3.spit on the ground随地吐痰 4. litter 乱丢杂物 5. keep off the grass 不要进入草地 6.pick flowers 摘花 7.take good care of young children 照看好儿童 再尝试用You must或You mustn’t 将下列短语造句Step 4 Have a match
Believe in yourself(相信自己)
请根据课文用must /mustn’t填空1 .You ____ take good care of young children.
2. You ____ pick the flowers.
3. You ____ litter.
4. You ____ wait for the green light.
5. You ____ keep off the grass.
6. You ____ cross the street now.
7. You ____ spit on the ground. must mustn’tmustn’tmustmustmustn’tmustn’t你能用以上句子连出今天所学的课文吗？
Look out!
____ ____ ____ ____ ____ ____ ____ 6 4 7 3 5 2 1 如何表达必须和禁止做某事？You must/mustn’t…例如：
You must keep off the grass.
You mustn’t pick the flowers. Yes, I can ! 是的，我行！Step 5 Homework （家庭作业）Workbook（练习册） ： Lesson17

Thank you for coming!
Goodbye !