约4580字。

　　Unit 14 Satellites  
　　一、教学目标与要求
　　让学生了解有关人造地球卫星的一些基本常识，人造地球卫星所发挥的巨大作用以及复习定语从句的用法，是本单元的教学重点。学生在理解课文的前提下，用较为流利的英语简述人造地球卫星的概况、工作原理，以及它们在传送广播、电视信号、预报天气情况、世界通讯行业和观测太空等方面所发挥的巨大作用；通过对话课的学习与操练，学生复习表示打算和意愿的常用语句；复习并熟练运用定语从句；正确完成练习册安排的练习。
　　二、教学重点与难点
　　1．重点词汇personally；broad；fold；connect；signal；pull；height；mention；ques－tion；attempt；feel like doing；so/as far as；in space；dozens of；carry out
　　2．重要句型1）Once the satellite goes into its orbit round the earth，the panels are unfolded in order to catch the sunshine．2）There is a rocket motor on the satellite by which the direction of the satellite can be changed if necessary．3）It is therefore possible to say not only what the weather is like at present，but also what is likely to happen in the next day or two．4）The problem with looking into space from the earth is that there is a lot of dust in the earth’s air．5）The dusty air makes it difficult to get a clear picture of space．
　　3．语法 复习定语从句（Revising the Attributive Clause）1）There is a rocket motor by which the direction of the satellite can be changed．2）There was no way in which it could be brought back to the earth．3）We carefully studied the photos，in which we could see signs of plant disease．
　　4．日常交际用语 打算和意愿（Intentions and wishes）1）What shall I do today？The weather’s not very good．2）I feel like going to a museum．3）What about you？What do you feel like doing？4）Personally，I’d rather go to the Science Museum．5）I’d like to see that too．Maybe I could findsome useful information．6）I haven’t decided what to do yet．
　　三、课型
　　（一）对话课
　　Ⅰ．教具  录音机、投影仪。
　　Ⅱ．课堂教学设计
　　1．教师通过向学生提出以下问题导入本课：I understand that many of you are very busy with your studies and you have a lot of homework to do at present．But still I would suggest that you do something else in your spare time．For example，visiting museums．Can anybody tell me what museums you have been to and what wonderful things you see there？
　　提问几位学生，并和曾经参观过各种博物馆的同学就他们的参观经历进行问答：
　　1）What museums did you ever visit？2）What didyou see there？3）What gave you the deepest impression？4）What kind of museums do you prefer？Why？5）Do you think that visiting museums is a good way for you to learn something new？Why do you think so？
　　向学生介绍一些博物馆的名称：History Museum；Science Museum；Art Gallery；Natu－ral History Museum；Military Museum，etc．
　　2．准备放对话录音。借助投影片打出以下听前提问：1）Where did the conversation take place？2）What was the weather like thatday？3）Which museum did they finally decide to visit？
　　放录音一至两遍，请学生回答上述问题，教师予以必要订正。
　　Key：1）The conversation took place in London．2）It was probably raining that day．3）They finally decided to visit the Science Museum．
　　3．再次放对话录音，学生跟读。根据本课对话内容，教师再提出一些问题，检查学生的理解程度：1）If you want to visit the Natural History Museum in London at present，do you have to payfor it？ 2） What is on at the Science Museum this month？3）Why does Zhou Lan want to see the exhibition too？
　　Key：1）You have to pay to get in if you want to visit the Natural History Museum in London at present．In the past it was free．2）A special exhibition is on at the Science Muse－um this month，It’s about space and satellites．3）Because she is planning to do a special study of satellites next term and she wants to find out some useful information．