2019九年级英语上册 Unit 5 Look into Science Lesson 29 DNA—The Story of You教案.doc
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1、1UnitUnit 5 5 LookLook intointo ScienceScienceLessonLesson 2929 DNA-TheDNA-The StoryStory ofof YouYou 1.1. AnalysisAnalysis ofof thethe StudentsStudents The students of Grade 9 have mastered certain vocabularies,expressions and structures. They also have the abilities of self-teaching and working in
2、 groups. Most of them are willing to express their opinions in English.2.2. AnalysisAnalysis ofof TeachingTeaching ContentContentLesson 28 is the fifth lesson in Unit 5, Book 5.This unit focus on the subject Look into science, also teach the students something about science. Students cares about the
3、 subject because it is close to everyone. Lesson 28 mainly talks about DNA, it tell us the character and function of DNA, also understand our body. We are unique in the world.【知识目标】1. To master the words: blueprint, general, complex, twins, pattern, identify, be related to, except for.2. To master t
4、he phrases: not onlybut also, except for, be related to, billions of.【能力目标】Improve the students ability of speaking, listening, reading and writing. Understand the articles about DNA. 教学目标教学目标 教材分析教材分析2【情感目标】Know more about the nature, know more about our body. You are unique in the world.【教学重点】To m
5、aster the compound sentences.【教学难点】To master the use of DNA.Tape recorder, MultimediaStepStep 1.1. Warm-upWarm-upFree talk: (show the picture of DNA, tell students DNA is short for deoxyribonucleic acid.)Think about it!1. What do you know about DNA?2. What can scientists do with DNA?StepStep 2.2. Pr
6、esentationPresentation1. Free talk: (1) Where is it in our body? (Show some pictures of DNA.) 课前准备课前准备 教学过程教学过程3(2) Whats the function of DNA? (Show some pictures of twins.)2. Explain the new words.3. Read the lesson and answer the questions:(1) What is a blueprint?(2) Which is more complex, buildin
7、g a living thing or building a house?(3) Do some twins have the same DNA?(4) Is it possible to change your DNA?(5) Whose DNA is related to yours?4. Check the answers and underline the key words.5. Listen and follow to the tape.6. Explain the language points:between 与 amongbetween 用于两者之间,among 一般指三者或
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