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Fill in the blanks using can/could/may/might. 1.Would you like to answer the phone?It ______ be your sister. 2.The part of the country ______ be very warm in September. 3.______ it be Lily? 4.It ______(not) be true. 5.You ______ be right. Suggested answers: 1.could/may/might 2.can 3.Can 4.can’t 5.may/might/could T:Besides “possibility”,can/could/may/might are also used to express “permission”.Yes? Ss:Yes.But we are not sure about how to use them. T:It doesn’t matter.I will give you some explanation.“Can” is the commonest one of the four,and “could” is rather more hesitant than “can”.“May” and “might” are used in a more formal style.They often suggest respect.“Might” is more hesitant and is not very common.Besides,when we give permission,we usually use “can” and “may”,but not “could” and “might”.When we report permission,“may” is not usually used.Are you clear about it? Ss:Yes. T:Then try to finish the following exercises,please. (Teacher shows the exercises on the screen.) 1.—______I use your phone? —Yes,of course.You ______. 2.______ you come into the meeting room without showing a passport? 3.Mary said that I ______ borrow her car. Suggested answers: 1.Can/Could/May/Might;can/may 2.Can 3.might/could(“Might” and “could” can be used after a past verb.) T:Next,which modal verbs do you think are necessary to review? Ss:The modal verbs expressing “necessity”.They are very important. T:Yes,I agree with you.We can use “must/have to/have got to/need” to express “necessity”.But about how to use them,I want you to review them by understanding the following sentences by yourselves.Look at the sentences on the screen. (Teacher shows the sentences on the screen,and then asks some questions.) 1.I really must study hard. 2.You must be here by 3 o’clock. 3.You have (got) to go and see the manager. 4.You needn’t work on Sundays. T:From the sentences,who can tell me the difference between “must” and “have to”? S1:I want to have a try.When “must” is used,the necessity comes from the speaker.If the necessity comes from “outside”,“have (got) to” is more common. (责任编辑：admin) |