仁爱科普版九年级上册 Unit4 Topic1 When was it invented？ SectionD 教案

课题 Unit4 Topic 1 When was it invented Section D 时间 教师 备注
教材内容/学情分析：本课重点是培养学生的阅读与写作能力，让学生更多了解发明物方面的科学知识，激发学生的科学探索精神，并对本话题的所学知识进行归纳和总结。本节课主要活动是单元复习，1a和作文提升。
学习目标：1．通过整合话题词汇、functions和grammar复习本话题知识； 2. 学习短文，掌握古代和现代人们是如何确定方位的；3．复习一般过去时的被动语态的用法；4. 作文提升。
教学重点难点：1.对比古代和现代人们是如何确定方位的，学习GPS的功能； 2.理解并应用一般过去时的被动语态和重点句子；3.对话题内容进行作文提升。
教学过程设计 教学环节 教学内容 教学策略 预设时间
Step 1 Revision（6 minutes）Design five tasks: spell the words, say the phrases, make up sentences, say the sentences, review grammar.Have a competition in four groups, review the words, phrases, sentences and grammar in this topic.Step 2 Lead-in (3 minutes)Ask students about the ways to find the directions in the pastT: Have you ever got lost anywhere What method did you use to find your direction 2.Collect students’ answers about the ways to find the directions in the past, like horse, map, road sign, star, compass...3. Introduce GPS by playing the flash for students.Step 3 Presentation (18 minutes)Design five tasks for students to learn the passage.Task1：Listen carefully and mark T (True) or F (False).1. The early explorers found that the stars in the sky were good guiding marks. ( ) 2. They could find out where they were by using the stars. ( ) 3. They could use stars at any time and in any weather. ( ) 4. The GPS can't help us explore our planet. ( ) 5. The GPS can be used to study the shape of the earth. ( ) Task2：Read the first paragraph and discuss the first two questions onPage88.1. How did the early explorers know where they were 2. What’s the disadvantage of using the stars as guiding marks Task3：Read the second paragraph and discuss the last two questions onPage88.3. What is a GPS Is it useful to us Why 4. What do you think the GPS will be used for in the future Task 4: Read the text for details(key words, phrases and sentences).Task 5: Fill in the blanks, complete the text.Step 4 Project (10 minutes)Project 1: (1) Introduce Kangkang’s invention and a student Chen Ang’s invention.Students discuss in groups of four. Each group design an invention. Draw a picture of it and write down the information about it. Name :____________Inventor:__________Year:_____________Use:_____________Project 2: Each group a student. Show the picture of his/her group's invention and describe it to the class . Step 5 Exercises (5 minutes)Choose the correct plete the passage.Step 6 Summary (2 minutes)Make a conclusion of what we have learned in Section D.
Unit 4 Topic 1 When was it invented Section D
What does it look like
What's your invention
invention
What’s it used for
What is it made of/from
find out
in …direction
as long as
work well
the rest of the time
at any time
in any place
mark, explorer,
man-made, system
We learn
Use the passive voice
of the simple past tense.
tense
Talk about new technology GPS.
technology GPS.
We can
Draw your invention and describe it.