Unit2Grammar名师教学设计
第五课时 Grammar—Modal Verbs 1. Teaching Analysis 教情分析 1) Teaching objectives
Students will be able to understand and learn to use the following modal verbs: ought to/ ought not to/ have to/ don’t have to/ mustn’t/ needn’t to show duty, possibility, guessing, etc. 2. Student analysis学情分析 1) Knowledge reserve知识储备
Students have learnt the basic usage of several modal verbs in Unit 1, their meanings and how to use them to show intention, duty, permission, possibility, guessing and ability, which sets foundation for their further understanding of the targeted modal verbs. 3. Teaching Procedures
Step I Revision:Review what has been learnt in previous lessons. Make clear that we can use modal words in a sentence to show “intention, duty, permission, possibility, guessing and ability”. Provide some examples if necessary. 1. can and could
Jim isn’t very good at math or science, but he canspeak English very well. The hunters have been lost for days. They could starve. Could you please show me the way to Beihai Park. 2. mayand might
What award did you get for the sports competition? May I have a look? Our football team didn’t play very well today, but we might do better tomorrow. 3. will and would
During the Spring festival time the whole family will come for dinner.
My uncle was poor but liked fashion, so he would often dress up as a rich man. Are you free this Saturday? Would you like to join my family for dinner? 4. shall and should
The harvest festival begins on Sunday. We shall be there with our friends before that. When going by plane, you should arrive at the airport at least one hour early. It’s nearly time for class to start. The teacher should be here soon. 5. must and can’t
When you eat fish, you must be careful with bones.
Wang Feng has won the English competition three times. He must be very smart. A man landed on Mars? You must be joking. That can’t be true.
《导学案》使用指南：本部分可结合《导学案》第五课时，第一部分，“课前预习”使用
Step Ⅱ Underline the sentences containing modal verbs in the reading passage and label each sentence with the function of the modal verbs used—intention, duty, permission, possibility, guessing and ability. (page13, Exercise 1)
1. Underline the sentences containing modal verbs in the reading passage and use the function words below to explain the meaning of modal verbs.
Intention Duty Permission Possibility Guessing Ability
Suggested answers:
Then by lunchtime they would all be sold. (possibility) By now his restaurant ought to be full of people. (possibility) What could have happened? (possibility)
Something terrible must have happened if… (guessing) I’ll help you lose weight… (intention) He could not believe his eyes. (ability)
Perhaps he should go to the library and find out. (duty)
He could not have Yong Hui getting away with telling people lies! (intention)
He had better do some research. (duty)
Even though her customers might get thin after eating Yong Hui’s food. (possibility) They would become tired very quickly. (possibility) …could win his customer back. (ability)
Step Ⅲ Explain the meaning and basic usage of the following modal verbs:
Modal verbs ought to ought no to Function & Examples In most occasions, ought to means should and ought not to means shouldn’t. eg: You ought to (should) finish the paper on time. You ought not to (shouldn’t) waste all you time playing video games. have to It shows necessity, which is impersonal but for a rule or a situation while must usually shows strong order from a person. eg: I have to go now or I will miss the bus. don’t have to don’t need to They show not necessary to do something. eg: You don’t have to (you don’t need to) read the whole book—you can read just some chapters if you don’t have time. mustn’t It shows prohibition. eg: The little mustn’t play with the knife—it is too dangerous. 《导学案》使用指南：本部分可结合《导学案》第五课时，第二部分，“课中互动”使用，以及时巩固已学知识。第三部分，“课后巩固”则可布置为家庭作业使用。
Step Ⅳ Using proper modal verbs to fill in the conversations. Exercise 2 and Exercise 1 on page 50.
1. Choose suitable modal verbs from below to compete the following dialogues. There may be more than one possibilities.
ought/oughtn’t to should/shouldn’t mustn’t needn’t(don’t have to) will can/can’t ① SAM: How can I grow thinner, Mum?
MUM: Well, you __________ eat food with plenty of fiber that helps you digest
better and you __________ stop drinking cola or eating sweet food.
SAM:
Does it mean I __________ eat my favorite fried chicken any more?
MUM: Not exactly, if you love fried chicken, you __________ give it up. Just
eat it less often. You __________ worry too much: a little fried chicken __________ do you good!
② DOCTOR: You are sick because you’ve eaten poisonous mushrooms. Where
did you get them?
LUCY:
I picked them in the forest. I know we __________ eat fresh vegetables.
DOCTOR: Oh, but you __________ eat them until you’re sure they are not
poisonous.
LUCY:
Thank you, doctor. I will be more careful next time.
③ CHARLES: I wish I could see things clearly in the dark. TOM:
Eating __________ help you see better. You __________ eat some every day.
Suggested answers:
①have to; should; shouldn’t; needn’t; don’t have to/needn’t/shouldn’t; will ②have to; mustn’t ③ought to; should
2. Read this dialogues and complete them with the proper modal verbs. ①JOHN:
We ________ get to the theater by seven. What time do you think we ________ leave?
SARAH: I think we ________ home at six, or we won’t arrive there in time. ②GEORGE:
I don’t feel well. The doctor told me that I ________ give up
smoking. He also gave me the medicine. Do you think it will do me any good?
AMY:
If you follow the doctor’s advice, it ________ help you.
③SALESMAN: This car is one of the safest on the market. Even so, you ________
be silly and drive without wearing a seatbelt.
CUSTOMER: I ________ never do that! ④RON: TOM: RON:
Let’s go to Carla’s party tonight.
Well, I don’t mind going as long as I don’t ________ dress up. That’s okay. You don’t even need to wear a tie if you don’t want to.
⑤SUSAN: Do you know where Alan is? I ________ find him anywhere. ROBIN: Well, he ________ have gone so far. His bag is still here. Suggested answers:
①have to, should, should②ought to, should ③mustn’t, would④have to⑤can’t, can’t
Step Ⅴ Speaking--using proper modal verbs in to make dialogues with partners. Try to use as many modal verbs as possible. Exercise 3 on page 13
Now work in pairs. One of you asks a questions, the other answers it. Then swap over. Remember to use modal verbs in your dialogues. EXAMPLE:
S1: What should you do after school?
S2: I have to go home at once. I need to take the bus and I have a bus card. I ought to do my homework as soon as I get home.
Other possible questions are:
1. Do you know what you have to do when you borrow books from the library. 2. Do you know what to do when you teeth ache?
3. Do you know what to do if you need to meet someone you don’t know at the airport?
4. Do you know what to do if you want to get a discount in a shop?
5. Do you know what you should do when you meet the hostess in your friend’s
人教版高中英语必修三 Unit2 Grammar 教学设计全面版
