高中英语 Unit 4 Astronomy the science of the stars Period 1　Warming up and reading优秀教案 新人教版必修3

unit 4 astronomy : the science of the stars单元格：查看类别课程标准必须掌握的项目话题Science of the starsThe development of lifeSpace travel and gravity词汇AstroomyN.天文学Exist六。存在生存系统N.系统系统制度ThusAdv .因此；所以ReligonN.宗教宗教信仰双氧水N.二氧化化合物塞里N.学说；理论比奥洛奇N.生物学凌动N.原子violo istN.生物学家维恩Pron .n. adj .(英国)万亿单位；10亿美元per zzleN.风扇；风扇。问题vt。六。(制造)混乱；混乱。为难globeN.球体；球体。地球仪；地球GravityN.重力；重力。重力紫罗兰Adj .暴力；强烈的暴虐弗洛特Vt .六。(创建)浮动；漂浮n .漂浮的水碳N.碳GentleAdj .温和；文雅的AtmosphereN.大气；大气。气氛PhysistN.物理学家UnlikePrep .不同；不同。不像ClimateN.气候FundamentalAdj .基本；成为基础的崩溃Vt .六。冲突；冲突。坠落hamfulAdj .有害SpaceshipN.宇宙飞船AcidN.山拉n. vt .拉；拉。拖曳；拖曳。牵引力链条N.链条；链条。链条SatelliteN.卫星；卫星。人造卫星MultiplyVt .六。乘法；乘法。增加MassN.质量团结块；大量玉沙根N.氧气ExhaustVt .耗尽；耗尽。枯竭词组Solar system太阳系封锁关闭(光线)In time时间；终于Cheer up是幸福的；感到兴奋下Lay eggs蛋Now that创建Give birth to分娩Break out突发；爆发In ones turn轮到某人了；然后Watch out仔细观察；小心；小心。要警惕碳二氧化物二氧化碳Prevent.阻挡from制止重要的句型1.what it was to become was uncertain until between 4。5和3。8 billion years ago when the dust setled into a solid globe。(be to doWhat-clause as the subject)2.the earth beame so violent that it was not clear whether the shape would last or not .(so.thatIt is/was not adj. whether-clause3.what is even more important is that as the earth coled down，water began to appear on its surface。(what-clause as the subject；That-clause as the predicative)4.it was not immediately obvious that water was to be fundamental to the development of life . it is/was (not) adj. that 5.so whether life will continue on the earth for millions of years to come will depend on whether this problem can be solve .(whether-clause as the subject；depend on whether-clause as the object)功能Instructions:Please pay attention to.please check that.you need.Dont forget to.makesure that.watch out for.Youd better.you must/mustn T.please lookat.语法Noun clauses as the subjectWhat it was to become was uncertain .it was not clear whether the solid shape was to last or not。教学要点1.get students to learn about the development of the earth and making a space trip。2.have students learn some useful new words and expressions and let them learn effective ways to remember English vocalulary。3.enable students to use the expressions of instructions correctly in daily life。4.let students learn the new grammer item : noun clauses as the subject。5.develop students listening，speaking，reading and writing abilities。教学困难1.enable students to master the use of noun clauses as the subject。2.let students learn to write a short article to show their problems and the ways to over comthem .develop students integrated skills。会话保留费里斯need: 7Period 1 Warming up and readingperiod 2 learning about language : important language pointsperiod 3 learning about language : grammer期间4 using language : listening and speaking期间5 using language : extensive reading期间6 using language : speaking and writingperiod 7 revision : summing up and learning tipPeriod 1 Warming up and reading整体设计教材分析this is the first teaching period of this unit .at the beginning of the class，The teacher can lead in The topic of The unit by having a free talk with students about some famous scientists and what1.in our solar system eight planets circle around the sun。what are they？can you match the names with the planets？2.whatinterests you in astrontomy？do you know any questions that astronomers are interested in？pre-reading is to remind students that the origin of life on the earth is a question that interests astronals and each religon and culture has o Howthe teacher should ask students what they know about these and then let them predict what kind of information will be introducted in the next part readingthe reading passage titled how life began on the earth provides students a brief introduction on how the universe developed and how life began on the AEThey should try to work out the meaningless of the new words through the context . then if necknesses，They can look them up in the dictionary or turnalso encourage them to look at The pictures and read The title to guess what The text might be about . then let them skim for The general idea，and scanin order not to let them feel much difficult，The teacher should deal with anylanguage problems while they are reading .after reading，Students are required to do the five exercises in the comprehending to see how much they have understand the reading passage。the teacher can first le T them work in pairs or in groups to find the answers cooperatively，and then check their answers with the whole class .to consolidate the contents of the reading passage，students should be required to retell the passage。in order to arouse the students interest，the teacher can hold a competition。教学要点1.let students read the passage and learn about the development of the earth .2.get students to learn different reading skills，especally the