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1、单元（章节）课题Unit4 Astronomy: the science of the stars本节课题Reading: How life began on the earth ?课标要求Develop the students reading skills.三维目标1. Students will be able to learn the formation of the earth.2. Improve students reading comprehension ability. 3. Train students interest in science and astronomy.
2、教材分析阅读部分讲述了地球生命的起源，水的形成使得地球有别于其他星球，它使得地球上生命的诞生成为可能。科学家认为，地球上的生命首先诞生于水中，然后通过上百万年后，陆地上才长出绿色植物，然后出现陆栖动物和水陆两栖动物。最初的动物靠孵化繁衍后代，后来出现了哺乳动物，人类也随之产生了。文章最后讲述的现象发人深省：The earth may become too hot for the lives on it.它关系到地球上生命的未来。学情分析Students know little about astronomy, so they cant quite understand it and talk
3、more about it.教学重难点How to help students understand the passage easily.提炼的课题Help students know the development of life on the earth.教学手段运用教学资源选择课本、PPT、练习册教学过程环节学生要解决的问题或任务教师教与学生学教师个性化修改Step 1Lead-in and revisionStep 2Pre-readingStep 3Self-learningStep 4Students showStep 5SummaryStep 6EvaluationRead t
4、he words fluently. Try to predict the main idea of the passage.SkimmingScanningCareful readingBe active to show their answers.Sum up the main idea of the passage.Evaluate students scores and choose the best group.Correct the students mistakes in pronunciation. Pay attention to the mistakes.Give stud
5、ents some hints(title and pictures). Show their ideas actively.1.Guide students to skim the passage to get the general idea.2. Divide the passage into three parts. Fill in the blanks.Ask students questions according to each paragraph. Answer the questions actively.Encourage students to be active in
6、class and show their answers. Correct their mistakes.Summarize the main idea of each part. Guide students to do the summary. Think it carefully.课堂检测内容Reading exercise on English paper 34.课后作业布置Learn the words and phrases by heart.预习内容布置Reading the passage again and underline the important and difficult points.资
