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　　T:This is a train .Say it ,please.

　　S : This is a train .

　　Show CAI.(演示飞机、汽车、火车行驶的速度，引导学生进行比较。)

　　T: An airplane is fast. A bus is slow.

　　What about a train? S: __________.

　　T: Yes, A train is faster than a bus.

　　A train is slower than an airplane.

　　(板书两个句子)。

　　T: （由older, younger, taller, shorter引出faster, slower.交给学生单词的发音方法，引导学生自己独出这两个单词的比较级形式)。

　　T:(看图)。Who can say another one?

　　S: An airplane is faster than a bus 。

　　……

　　T:将板书的两个句子总结成一个句子：

　　A train is faster than a bus but slower than an airplane.

　　S : A train is faster than a bus but slower than an airplane .(学生读句子。)

　　4.Practice : Show CAI .

　　(第一张是出租车和自行车的比较，给出句型，让学生填单词：faster 、slower ;第二张是飞机和小汽车的比较。第三张是卡车和火车的比较。后两张让学生自己练习说句子。)

　　Let the Ss practice in pair .Then present .

　　5.New concept : Part 2 .

　　T : I go to school by car .

　　How do you go to school .

　　S1 : I go to school by bicycle .

　　S2 : I go to school on foot ..

　　T: Do you want to go to 　　Beijing　　? S: _________.

　　T: Oh, yes, you can take a bus or a train.

　　T: We know, LiMing wants to go to Beijing.

　　Do you want to know: How does LiMing go to Beijing?

　　T: Here are some questions.

　　Who can read?(找学生读。)：

　　①How does LiMing want to go to Beijing ?

　　② How does LiMing`s mother want to go to Beijing ?

　　③ How do they go to Beijing at last(最后)？

　　Play the CAI .

　　T: Let’s listen.

　　T: This time, two Ss read this dialogue.

　　One is LiMing, the other is LiMing’s mother.(学生读).

　　(Lead the Ss to read the dialogue .Then answer the questions .)

　　T: Ok, stop here. The first question .(回答问题).

　　6. Plan : T: Beijing　is beautiful, China is great.

　　Winter holiday will come; I want to go to Shanghai　　.

　　Where do you want to go?

　　S: I want to go to__________.

　　T: Winter holiday will come. Let’s make a plan for winter holiday.

　　You can use these sentences. And write on your paper. (边说边写)。

　　I want to go to .

　　I want to go there by .

　　The is fast .

　　The is faster than a .

　　The is slower .

　　The is slower than a .

　　……

　　T: This time, talk about your plan with your partner.(学生谈论)。

　　T: Who can show your plan? (找学生谈论).

　　T: After class, you can talk about with your mother.

　　Maybe, you can go.

　　7.Song : “The trip song”.

　　T: Let’s have a rest, sing a song.

　　板书设计：

　　Lesson 21 How Can We Go To Beijing　　?

　　older   An airplane is fast.

　　younger    A bus is slow.

　　taller    A train is faster than a bus

　　shorter  but slower than an airplane .

　　faster

　　slower