八年级英语下册 Chapter 5 Water talk Pre-reading导学案（无答案） 牛津沈阳版

Chapter 5 Water talk Pre-reading课题TopicChapter 5 Water talk Pre-reading课型Type L+S学习目标Learning aims知识Knowledgewords and expressions情感EmotionTo know about water能力AbilityTo be able to read the text and understand it重点和难点Key and difficultyWords: increase,decrease,remain,vanish,freeze,obey,float,liquid,solid,symbol,scientific,drain impatient, comfortablyExpressions: more valuable than, the amount of, remain the same, be covered bySentences: The two-thirds of the earth is covered by water.时间预设TimesharingP2 L10 S18 S2 C8 学习策略Learning strategy Group co-operation inquiry learning教学环节教学环节课前复习 写出下列动词的过去式和过去分词defeat_ _beat_ _spread_ _ buy_ _enable_ _lead_ _wet_ _ sell_ _scratch_ _rise_ _bite_ _slam_ _新课导入 Which is more important to people, food or water? Do you know how many days people can live without water? 探究展示I请熟记下列单词increase_decrease_remain_vanish_freeze_obey_float_liquid_solid_symbol_drain_scientific_impatient_comfortably_II短语1. 比更贵重_ 2. 几天_3. 两升水_ 4. 水的量 _ 5. 地球的三分之二 _6. 被覆盖_7.保持不变_8. 水的科学符号_III用适当的介词填空 You could live _ water _ a few days. Your body needs about two litres _ water daily. About two thirds _ the earth is covered _ water. The scientific symbol _ water us H2O. Water falls _ the clouds _ rain and runs _ streams and rivers. It then flows _ the sea and rises _the sea _ the sky. Finally it falls _ rain again.III据意填词1. The plane took off and then v_ in the clouds.2. The water f_ in winter and melts in spring.3. Youre so tired and you should have a r_.4. The population in China i_ every year.IV改写句子1. What do you think? Who are talking in the story?(合成一句) _ _ _ _ are talking in the story?2. You could live without water for a few days.（同义句） You could live without water for _ _ days. 3. Your body needs about two litres of water daily.（同义句）Your body needs about two litres water _ _.点拨1.without是with的反义词，意思是“没有”。后接名词、代词或动名词，作状语修饰动词。2.a few 意思是“一些”=some，several或not too many，后接可数名词复数few “很少”， “几乎没有”a little = some或not too much“一点”（肯定）little“几乎没有”（否定）3. remain“保持，仍是”，系动词，后接名词、形容词或介词短语。remain the same保持不变4. 分数的表达：分子是基数词，分母是序数词，当分子大于等于2时，分母为复数。如：三分之一：one third三分之二：two thirds5. 分数或百分数修饰名词时，名词的单复数决定谓语动词的选择：Two thirds of the book is interesting. Two thirds of the books are interesting. 反馈检测1. What do you mean _ the electric fan?A. bu turning off B. in turning on C. by turn off D. in turn on2. Remember _ in the street. Its dangerous.A. to run across B. running across C. not to run across D. not running across3. Its not _ for us to work out 100 maths questions in an hour.A. difficult B. important C interesting D. easy4. The film isnt interesting. _ people like it.A. A few B. Few C. A little D. Little 5. New computers can store _ than old ones.A. much information B. many informations C. much more information D. many more information课后作业 选择并抄写单词1. About two _(three, third, thirds) of the earth is covered by water.2. The _(scientist, science, scientific) symbol for water is H2O.3. Water falls from the clouds _(as, like) rain.4. I can only live wi