教学目标：
1. 能够掌握语法：由before、after、when、while、since、till、until、as soon as和whenever引导的时间状语从句。
2. 能恰当运用时间状语从句进行口头和书面表达。
重点难点：
1.学习新词汇：medal, career, against等。
2.掌握新句型
It’s the first time we have played basketball since this Monday.
The best moment in his career was in 2004—he scored 41 points in a game against the Atlantic Hawks.
3. 能熟练运用时间状语从句进行表达。
教学准备：
PPT，多媒体
教学过程：
Step 1 Revision and lead-in
1. Observe the following sentences carefully.
（1） He remained there for about a year before the NBA took notice of him.（P51）
（2） After he graduated, he was forced to play in another basketball league.（P51）
（3）When he finally got the chance, he scored 20 points in his first game.（P50）
（4） While （he was） attending junior high, Spud tried out for the school team.（P50）
2. T: The sentences above are all time clauses and today we’ll learn time clauses introduced by different conjunctions.
Step 2 Presentation
1. Show the following time clauses introduced by before, after, when while and etc..
（1）When the weather is good, my grandpa likes going fishing.
（2） The sun came out after the storm stopped.
（3） Close the windows before you leave the room, please.
（4） While my sister was sweeping the floor, I was washing the dishes
（5） You’ve been happy since I first met you.
（6） Spud remained in another basketball league for about a year till/until the NBA took notice of him.
（7） Until his dream came true, Spud never gave up.
（8） As soon as you click the mouse, there’s a great deal of information.
（9） He likes listening to music whenever he has time.
2. Ask the students to read and translate them into Chinese, pay attention to the conjunctions.
3. The teacher helps then to understand the uses and differences by explaining in Chinese.
Step 3 Practice
1. Finish the exercises on P54-56.
2. Check the answers.
Step 4 Homework
Go over the time clauses they have learned.
Integrated skills