Teaching goals : 1. Words & phrases: get to , how far , bicycle , subway , minute , mile , bus stop .2. Talk about how to get to places (談論出行方式) take the bus /subway /train /taxi , ride a bike /walk . 3. how引導的特殊疑問句，表示乘坐何種交通工具的方式.how far ,how long 引導的特殊疑問句. 4. 復習基數詞及時間的表示方法. 5. 了解中外文化的差異. Important and difficult points : 1. how /how far /how long 引導的特殊疑問句. 2. 乘坐交通工具的表示方法. 3. It takes /will take/took sb some time to do sth . Teaching aids: cards and a tape-recorder . Period1 Teaching procedures : Step 1Leading in 1. Greetings and free talk . 1. T: How do we get to school ? Some students walk ,some students take the bus ,some students ride a bike .Does anyone take the subway ? No , we have no subway .OK ,today we will learn Unit 4 . Explain : get toStep 2While-taskSB Page19 ,1a&1c . 1. Write down how you get to school . 2. Look at the picture .Write down how the students get to school. 3. Make dialogues with the phrases . 4. Groupwork: Divide the students into groups of three or four .Practice reading the dialogues.