Ss:Yes.It introduces two situations-a normal everyday situation and a possibility in the future.

　　T:Very good!This period we'll learn another kind of adverbial clause,that is,adverbial clause of concession.Please look at the screen.

　　(Show the following sentences on the screen.)

　　1.Whatever you do,don't leave immediately after the meal is finished.

　　(a)It is important to leave immediately after the meal has finished.

　　(b)Don't do anything after the meal has finished.

　　(c)You can do anything you like after the meal has finished.

　　(d)It is important not to leave immediately after the meal has finished.

　　2.However hungry you are,you shouldn't start to eat before your host does.

　　(a)If you are very hungry you can start to eat.

　　(b)Even if you are hungry you should wait.

　　(c)It is important to start eating before your host.

(d)Don't eat anything if you're not hungry. 　　

　　T:Read the sentences and choose the correct meaning.You can discuss with your partner if you have difficulty in understanding them.

　　(After a short discussion call back the students' answers by asking one students to read the sentence and another to read the correct definition.Then show the answers on the screen.)

　　Suggested answers:1)d　2)b

　　T:Well done.Can you summarize the grammatical rules of this adverbial clause through this exercise?

　　Sa:Sometimes the adverb clause is placed at the beginning of the sentence.When it introduces the sentence,it is always set off with a comma.

　　T:Quiet right.Any different idea?

　　Sb:I think that the interrogative pronouns act as object in the clause,however,interrogative adverbs only modify adjectives or other adverbs.

　　T:Good summary,ha?Let's have a brainstorm.Please think of as many interrogative nouns and adverbs ended with ever as you can.

　　(The students say these words and the teacher write on the blackboard.)

interrogative pronouns whoever whichever 　　T:Have known interrogative pronouns and adverbs,let's practice using them.Here are some sentences on the screen.Discuss with your partner and fill in the blanks with whoever,whenever,wherever or however.

　　(The teacher shows the sentences on the screen.)

　　1.__________I feel lonely,I think about you.

　　2.__________he is,he is very rude to me!

　　3.__________I go,I always meet interesting people.

　　4.You can invite__________you like to the party.

　　5.__________late you arrive,I'll come and meet you.

　　6.I feel shy__________she say hello to me.

　　7.I hear that song__________I switch on the radio.

8.__________much I study,I find these exercises difficult.