约3740字。

　　Module 3 Journey to Mars
　　Unit 3 Language in use
　　教学目标：
　　一、知识目标:
　　1、能听懂有关太空旅行的介绍。
　　2、能够介绍人类对太空的探索经历。
　　3、掌握以下语言目标。
　　（1）、词汇：掌握本单元中的词汇。
　　Prefer, diary, even, secret, real, twice, explore，etc.
　　（2）、能熟练运用句型（见in put）
　　Have you… yet?
　　I have already…
　　I haven’t … yet. (重点)
　　（3）、在现在完成时态中正确使用already, just, yet。掌握have been to与have gone to的区别。（见Practice）
　　4、语法功能：现在完成时态
　　二、情感态度：培养创新精神，拓展视野；培养爱国主义精神，激发对航天事业的兴趣。
　　三、学习策略：自主学习，能够根据自己的情况预习教材和拓展；合作学习，能够与同学交流学习心得体会，共享学习策略。
　　Teaching steps:
　　1、Warming-up: Word competition
　　Teachers’ Activity:
　　Ask the Ss. to look at the word map. And have a Word competition in the groups. To see who can write more words about space . Then check in groups.
　　Students’ Activity:
　　Try to write any more words you know about space. And check the answers in groups.
　　2、In put: Make some explanation about the present perfect tense.
　　Teachers’ Activity:
　　Run through the examples with the Ss. and mare that they are familiar with the use of present perfect tense.Ask the Ss. to read and repeat the sentences in the box.
　　Students’ Activity: 
　　Learn to the use of present perfect tense. Read and repeat the sentences in the box on P22.
　　3、Practice
　　Teachers’ Activity:
　　Ⅰ、Let Ss finish activities 1 and 2 on page 22 first. Then help students to make a conclusion about the use of just / already and yet. Explain them how to use in the present perfect tense. There’s something more Ss should pay attention to.
　　II、Create a situation as follows to help students make clear about the different usage of have/has been, have/has gone. Then let' Ss finish