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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,2021/8/11 星期三,*,The,properties,of,water,HuiHua Middle School,English is a bridge to the world.,Made by,CuiZhi,2021/8/11 星期三,1,说课稿结构,Part one:The teaching material,Parttwo:Teachingmethods,learning guidance and aids,Part three:Teaching procedures,:,Part four:Comments and evaluation,2021/8/11 星期三,2,Part one:The teaching material,A.contents and status of the teaching material,Unit13 is about water,so all the teaching materials chosen are about water,.,This lesson describes the properties of water,such as its chemical structure,density,heat capacity etc.As a reading passage,it plays an important part in this unit,for reading is one of the four skills that the students should have.In this reading passage,the teacher should help the students get some knowledge about the properties of water.Meanwhile,the students are required to improve their reading skills by skimming,scanning and doing different kinds of exercises,2021/8/11 星期三,3,1.,knowledge goals,words:cube,property,range,medium,relatively,dissolve,pure,relationship,mass,absorb,bottom,phrases:all the way,that is,add to,mix with,take advantange of,manage to do,sentences:,1)but the way the water molecule is formed gives water its unique properties.,2)With the right kind of body,it is possible to float around in the ocean and let the water do the work.,B.teaching aims,and demands,2021/8/11 星期三,4,B.teaching aims and demands,2.ability goals,1)improve the studentsreading ability,2)teach the students how to grasp the main,idea of the text,3.emotional goals,Enable the students to realize that it is important,to protect and save the water on our planet.,2021/8/11 星期三,5,c.teaching important points,1)develop the students reading skills,eg,how to find the topic sentence of each paragraph.,2)enable the students to grasp the above,vocabularies and sentence patterns,3)improve the students awareness of saving water,2021/8/11 星期三,6,D.teaching difficult points,How to make the students understand,the reading passage better,2021/8/11 星期三,7,Part two:Teaching methods,learning guidance and aids,A.teaching methods,1.,multimedia method to arouse the Ssinterests,2.skimming,scanning,task-based method to impove the studentsreading skills,3.student-centered method to motivate the students activeness,4.success-experiencing method to encourage the Ss and make them feel the joy of success,2021/8/11 星期三,8,B.studying ways,learning through cooperation,learning through communication,learning through practice,2021/8/11 星期三,9,C.teaching aids,the multimedia,the recorder.,2021/8/11 星期三,10,Part three,Teaching procedures:,Step1.lead-in(4minutes),Show some pictures to let the students say something about water.and ask the students to take a little quiz about water(to arouse the Ssinterests and draw their attention to the following text),2021/8/11 星期三,11,2021/8/11 星期三,12,2021/8/11 星期三,13,2021/8/11 星期三,14,2021/8/11 星期三,15,The earth,revision,44,2021/8/11 星期三,16,The usage of water,entertainment,2021/8/11 星期三,17,Water can be used for agriculture,2021/8/11 星期三,18,The dalian of china,transport,2021/8/11 星期三,19,2021/8/11 星期三,20,Quiz time:,Up to _ of the human body is water.,A.60%B.65%C.70%,2.About _ of the earth surface is covered by water.,A.66.6%B.75%C.85%,3.The water molecule is made up of _ atom(s),and _ atom(s).,A.two hydrogen;one oxygen,B.one hydrogen;one oxygen,C.two hydrogen;two oxygen,2021/8/11 星期三,21,step2 pre-reading(,2m),Ask the students to read the title of the text and say some,properties or characteristics of water,2021/8/11 星期三,22,What properties or characteristics do you know about water?,colorless,tasteless,having no fixed shape,three forms,feeling wet,keeping level,?,absorbing heat,properties,2021/8/11 星期三,23,step3 while-reading,skimming,scanning,task-based(25m),1.skimming,:try to find the topic sentence of each paragragh,para1,.introduction:the properties of water make the ocean a great place to live.,Para2.,the chemical structure of water makes it a excellent medium for life,Para3,the salinity of sea water affects both its weight and freening point.,2021/8/11 星期三,24,Para4,marine animals and plants take advantage of the density of water.,Para5,the heat capacity of water keeps the temperture of the ocean steady,making it a safe and comfortabale habitat.,Para6,.ocean motion adds energy to the marine ecosystems and moves nutrients around.,1.skimming,2021/8/11 星期三,25,2.scanning,ask the Ss to scan the text to finish ture or false questions,2021/8/11 星期三,26,scanning:the properties of water,Water is a liquid at room temperature,and it has a relatively high freezing point.,The reason why water can dissolve most substances on earth is that water has high heat capacity.,Like all the other substances,water gets smaller when it freezes.,Pure water has a higher freezing point and lighter than salt water.,The salinity of the earths oceans is about 3.5%.,When water freezes,its density increases.,T,F,F,T,T,F,True or false,2021/8/11 星期三,27,2.ability goals,1)improve t
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