...

　　T:(After finishing this exercise.) In these customs,which one do you think is surprising or interesting?If you have your own distinguished opinion,would you like to share it with others?

　　Ss:(Different students have different opinions so this is an open topic which can interest the students in other country's customs and culture.In this way could they strengthen their communication ability.)

　　Suggested answers:

　　1.should　2.mustn't　3.should　4.shouldn't　5.must

　　Step 3 Grammar 2

　　T:In last period we have learned something about adverbial clause of condition and two subordinate conjunctions when and if.As we have known,both of them introduce situations whose results are explained in the other part of the sentence.In addition,it usually uses the present simple tense.The following Grammar 2 part will lead you to further more information about adverbial clause of condition.Here are three sentences with adverbial clause of condition.Read them through and answer the questions below.

　　(Show the following sentences and questions on the screen.)

　　a)If you meet someone you usually shake his or her hand.

　　b)What should I do if I'm invited to dinner?

　　c)Unless you're unlucky you'll soon think of something.

　　1.Which sentence refers to a normal everyday situation?

　　2.Which sentence refers to a possibility in the future?

　　3.Which word in the third sentence means if...not?

　　 (Give the students a few minutes to prepare this and then ask a few good pairs to give answers by such means as one ask the questions and the other reads the sentences or gives answers.)

　　T:You performed well just now.In order to consolidate what you learned,I prepare an exercise for you.

　　(Show the exercise on the screen.)

　　1.If you __________a cake you host __________very pleased.(take,be)

　　2.Unless the weather __________better,I __________at home.(get,stay)

　　3.He __________home early if he __________well.(go,not feel)

　　4.What __________I __________if they __________about politics?(do,talk)

　　5.If you __________your hand the taxi__________.(raise,stop)

6.I __________anything unless he __________me.(not say,ask) 　　 (Give the students some time to prepare.)

　　T:(A few minutes later.) Are you ready?

　　Ss:Yeah.

　　T:Now check the answers according to what are shown on the screen.

　　Suggested answers:

1.take;will be　2.gets;will stay　3.will go;doesn't feel　4.shall;do;do talk　5.raise;will stop　6.will not say;asks