【正文】
riting in his diary about one of his days. Now please help him bine the sentences using before, after, when or while on page 54. S: ? T: Now check your answers. Read the sentences please. We use “ before” , “after” , “ when” and “ while” here as conjunctions to introduce time clauses. 2. Tips T: Sometimes they can be used in another way. Can you finish this sentence? Good! What about this one? Great! So “before, after” here are used as ? ? S: ? T: Preparations! Well done! What about the following sentences? What if we leave out “I was” ? Do they have the same meaning? S: ? T: They are the same! Remember the rule please! 【設計意圖:借助課本習題檢測學生對新知的掌握,并舉一反三,找出相關知識點進行辨析比對,讓學生靈活運用所學知識?!? B Using since, till and until Step 1 Presentation 1. since T: Yao Ming joined the Shanghai Youth Team while he was attending junior high. But when did he bee a member of the national basketball team? S: (When Yao Ming was 18 years old, he joined the national basketball team.) T: A very early age! Did he do well in the team? S: (Yes. Since he joined it, he has won many petitions.) T: He is really great! “ Since” here is also used as a conjunction. What does it mean? S: ? T: Yes. (From a certain time) What about the use of verbs? Can you work out the rule? S: ? T: Great! You are good learners! 2. until/till T: Mr. Yao is also a good learner. He is not only famous