冀教版英语八年级下Unit4Lesson30教案Lesson30 Keep the Candle Burning!?Step1：复习巩固、激情导入复习：提问Lesson29知识点1-3导入： Do you think science is interesting? Why or why not?Step2：出示目标、明确任务1.牢记本课黑体词汇：match/light/burn/use up等；2.熟读课文，把握其意；3.背诵重点句子1-4，并灵活运用相关知识点。?Step3：自主学习、合作探究任务一：限时5分钟，熟读所有词汇，牢记黑体词汇任务二：熟读课文，把握其意，画出不理解处，同桌之间交流任务三：背诵重点句子，并自学知识点，画出不理解处，同桌之间交流1.Fill the dish half full of water.2.To make a candle burn, you “light” it.3.As the candle burns, it uses up oxygen in the air.4.There is about one-fifth oxygen in the air, so the water rises and fills about one-fifth of the jar.1.The candleholder is “holding” the candle.?Step4：师生互动、展示提升互动一：单词记忆比赛互动二：课文熟读接力赛互动三：知识点展示大比拼知识点一：Fill the dish half full of water.Half（1）副词意为“部分地，一半地，差不多”Eg：The bottle is only half full.（2）也可作形容词，名词，意为“半个的，一半的，一半”Eg：half a year=a half year;half an hour=a half hour;Half of them are already here.Two halves make a whole知识点二：To make a candle burn, you “light” it.Make/let/have sth./sb. do sth.意为“使某物或某人做某事”Eg： Let the candle burn for two or three minutes.知识点三：As the candle burns,it uses up oxygen in the air.1）as作连词的各种用法asas结构中第二个as是连词，它往往连接一个不完整的句子，表示比较，意思是 和一样；像一样 “Eg：John is as healthy as his sister.表示方式，意为”像，按照，如同。 “Eg：Run as I do.Leave it as it is.表示时间， 意为”当的时候，一边一边，随着“Eg： She sang as she worked.I saw him as he was getting off the bus.You will grow wiser as you grow older.表示原因， 意为”因为“Eg：As you are tired,you bad better rest.表示让步， 意为”虽然，尽管“Eg：Rich as he is ,he is not happy.Much as I like it,I will not buy it.2）use sth. up意为” 用尽，利用 “Eg：She used up the chicken bones to make soup.When the candle stops burning,it has used up all the oxygen in the air.知识点四：There is about one-fifth oxygen in the air,so the water rises and fills about one-fifth of the jar.分数的表达形式：分子用基数词，分母用序数词，分子大于1,分母加s.概括为口诀：分子基，分母序。分子1,分母加s. ”Eg：1/2=one/a half=one second=one-second;1/3=one third=one-third;2/3=two thirds=two-thirds;1/4=one/a quarter=one-quarter;3/4=three quarters=three-quarters;3/5=three fifths=three-fifths;知识点五：The candleholder is “holding” the candle.hold为动词意为“拿，抓，握，抱，保持，容纳”Eg： Shall I hold your bag?He held a book in his hand.He held his head up.I dont think the car will hold you all.?Step5：巩固练习、检测验收教学反思：2用心 爱心 专心