Unit4AstronomythescienceofstarWarmingupampReading教案
unit4 astronomy: the science of star-warming up & reading教案
how life began on the earthstep one: warming uptask 1: commom sense(常识) of science. physics, chemistry, biology(study of life),geology(地质学) and mathematics are science subjects. some science subjects will study two or more of these subjects, for example,the study of physics and mathematics is astronomy(天文学). can you understand the following combined science subjects.1. physics +mathematics= astronomy2. geology+physics = geophysics(地球物理学)3. biology+chemistry=biochemistry( ) /medicine( )4. geopolitics (地缘政治学)=_________+_________5. bioengineering(_____________)=_____________+_______________task 2: common sense of biology------ study of the groups of life (生命的种类/物种)look at the pictures on the screen and judge the groups as quickly as you can.what is the most important condition for life to develop(grow)?(water, air---oxygen)step tw pre-readingthe world is like a big family. it’s wonderful and colorful because of different kinds of life living together.but how did life begin on the earth? the first question for scientists to answer is how water appeared on the earth?step three: readingtask1: fast-reading(para1) 1. what is the important event(事件) to the earth before the appearance of water?2. why is water important for the beginning of life?task2: sacnning (para1,2,3) the beginning of water& the beginning of lifescan para1: the beginning of water1.the big bang 2.a cloud of dust (combine into) 3.a ball/a solid shape (explode) 4.water vapour, oxygen,…and other gas (cool down) 5.waterscan para2,3: the beginning of life (put them into right order)a. insects and amphibians appear b.reptiles appearc.shellfish and other fish appear d.dinosaurs appeare.small plants grow on the water f.plants begin to grow on dry landg.mammals(including humans) appear 5.water 6.______ 7._______ 8._______ 9.______ 10.______ 11.______12.______ task3:careful-reading1. why the earth was different after the water appeared?2. why did plants grow before animals?3. why did animals first appear in the sea not on the land?4. what is the main difference between reptiles and mammals? can you give some examples of mammals?step four: cooperative learningdisscuss the following questions, and use para4 to help you.1. why do people become the most important animals on the planet?2. do people take care of the earth? what are they doing to the planet?3. what is the result?step four: discuss for moral education• why did dinosaurs die out?• do you think there will be a sudden change of weather on the earth?• what should people do to protect our earth?exx for evaluation:after the "big ban", the earth was just a cloud of __________dust. it ________ loudly with fire and rocks, which were________ to produce the water vapour, ________ and other gases. then small lants grew. they ________ and filled the oceans and seas with oxygen. many millions of years later, the first gren plants began to ________ on land. when the plants grew into forests, ________ appeared for the first time.they produced young generally by ________ eggs. when dinosaurs disappeared, ________became more important. now small clever animals with ________ appeared and __________ all over the world. as time went by they covered the earth and they are putting too much carbon dioxide into the ________, which________ heat ________ escaping from the earth into space. whether life will continue on earth for millions of years to come will ________ whether this problem can be solved.
紫藤萝瀑布语文教学设计方案范文教学目标有感情的诵读课文,理解内容,感悟中心。揣摩词语和句子,理解作者感情变化的线索。学习并运用观察感受联想思考的学习方法。体会作者对人生的独特感受,体味人生,感悟生命。教学设想本
语文七色光教学设计方案教学目标掌握汉字构成的一些规律。会填字组成语,并会运用这些成语造句。能找出句子生病的原因,并能正确修改。积累有关学习方面的谚语或名言。自读知识窗内容,了解司马光的事迹。教学重难点学
滑动与滚动教学设计教材分析本课是在上节运动与摩擦力的基础上继续研究影响摩擦力大小的因素,学习本课是为研究如何改变摩擦力的大小打下基础。本课有两个活动。第一,测量滑动和滚动摩擦力的大小。学生对小车行驶
凡卡教学设计优秀模板一教学目标1引导学生深入理解课文,了解沙皇统治下穷苦孩子的悲惨命运,激发学生憎恨不合理的社会制度,珍惜今天幸福生活的思想感情。2学习通过人物的语言动作神态联想来了解人物内心活动的方
福楼拜家的星期天的教学设计模板福楼拜家的星期天的教学设计模板一教学目标培养学生自主阅读的能力理解抓住人物特点来描写人物的方法和场面描写的方法进行写作片段练习,学习抓住人物特点来描写和场面描写。二教学思路自读讨论
英语第十一单元教学设计和教学反思一教学目标1知识技能(1)学生能够听说读写单词bones,muscles,skin并能用英语进行表达。(2)学生能复习掌握并实际做对话Whatsyourfavouritefruit
埃及的金字塔的教学设计第一课时教学目标1组织学生自学生字词,理解词意,允许留有疑难2指导学生读课文,读准字音,读通句子3引导学生了解课文主要内容,初步体会金字塔的雄伟与神秘4激发学生学习兴趣,鼓励对课文
两位数除以一位数首位能整除教学设计走向理解的数学教学两位数除以一位数(首位能整除)教学设计与说明作者董云教学内容三年级(上册)第12页例1想想做做。教学目标1。经历探索整十数除以一位数的口算方法和两位数除以一位数笔
福楼拜家的星期天教学设计福楼拜家的星期天教学设计目标设定1速读课文,能捕捉人物的。主要特点2学习用生动细致的描写刻画人物性格特征的写法3培养阅读思维口头表达能力4感受大文豪们的智慧与品质师生活动设计一导入
语文识字5教学设计一导入师同学们,上课前,我们先进行一个听说比赛,比一比,咱们二年一班的学生,谁的耳朵最灵敏。我说一句话,可要听清楚,然后说准确。开始。字是黑狗,越描越丑。书本不常翻,不如一块砖。方
珍珠鸟获奖教学设计范文教学目标引发学生思考人与动物的关系,激发学生关爱生命善待生命的情感。品味文章的语言,培养阅读鉴赏能力。培养学生自主合作探究的学习习惯。教学重点展示人和动物之间充满爱和信赖的理想境界