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单元（章节）课题Unit4Astronomy:thescienceofthestars本节课题Reading:Howlifebeganontheearth?课标要求Developthestudents’readingskills.三维目标1.Studentswillbeabletol

earntheformationoftheearth.2.Improvestudents’readingcomprehensionability.3.Trainstudents’interestinscienceandastronomy.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：Theearthmaybecometoohotforthelivesonit.它关系到地球上生命的未来。学情分析Studentsknowlittle

aboutastronomy,sotheycan’tquiteunderstanditandtalkmoreaboutit.教学重难点Howtohelpstudentsunderstandthepassageeasily

.提炼的课题Helpstudentsknowthedevelopmentoflifeontheearth.教学手段运用课本、PPT、练习册教学资源选择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Step1Lead-inandrevisionStep2Pre-readingStep3Self-learningStep4Students’showStep5SummaryStep6EvaluationReadthew

ordsfluently.Trytopredictthemainideaofthepassage.SkimmingScanningCarefulreadingBeactivetoshowtheiranswers.Sumupthemainide

aofthepassage.Evaluatestudents’scoresandchoosethebestgroup.Correctthestudents’mistakesinpronunciation.Payattentiontothemistake

s.Givestudentssomehints(titleandpictures).Showtheirideasactively.1.Guidestudentstoskimthepassagetogetthegenera

lidea.2.Dividethepassageintothreeparts.Fillintheblanks.Askstudentsquestionsaccordingtoeachparagraph.Answerthequestio

nsactively.Encouragestudentstobeactiveinclassandshowtheiranswers.Correcttheirmistakes.Summarizethemaini

deaofeachpart.Guidestudentstodothesummary.Thinkitcarefully.课堂检测内容ReadingexerciseonEnglishpaper34.课后作业布置Learnthewordsand

phrasesbyheart.预习内容布置Readingthepassageagainandunderlinetheimportantanddifficultpoints.