仁爱英语九年级上导学案2013YY9158.doc

Unit 4Topic 3 (Section C ) English Proverb：Practice makes perfect. 熟能生巧Class Group Name Day Date Weather 【抽测】抽测完后，请给你的学习伙伴一个评价。抽测得满分者，可获得；测得满分且书写工整漂亮者，可获得。【学习目标】Learning Aims and Demands.掌握：storm Its diameter is 53% as wide as that of the earth. It has been two days since we landed on Mars.二、 学习重点：It is six weeks since we had a proper shower.三、学习难点：(1) Its diameter is 53% as wide as that of the earth.(2) It has been two days since we landed on Mars.【预习导学】Preparin g for lessons before class.（一 ）导入：自学1a：英汉互译：1.be named after Mars_ 2.the Roman god of war_ 3.53% as wide as_4.相隔_5.覆盖火星的整个表面_ 6.仅仅36公斤重_7.和的2/5一样重 _8.彼此距离最近 _9.搜寻更多信息 _ _【基础知识】Basic Knowledge.1. Complete 1a 1b. Self-study. (独学)学法指导： 认真阅读,找出重点和难点并用双色笔作出记号。 1b, Work alone Pairwork and groupwork (对学与群学)学法指导 组内讨论重点内容，记好笔记并质疑。 Find out the key words to repeat the passage 1a .【专题提升】 Special Promotion Finish 1b 1c 2 and 3。【合作探究】1 Its diameter is 53 as wide as that of the earth. 点拨：as形容词/副词原级as 名词 - 像一样 思考：句中that指代_, 如果前面的名词是复数，用_指代 练习：a.我们学校像花园一样美。Our school is _ _ _ a park.b.Tom和Mike跑得一样快。Tom _ _ _ _ Mike.in the country.2.Mars goes around the sun at a distance of about 228 million kilometers. 点拨: at a distance of -相隔 拓展：at/from a distance - 在远处 3.The gravity on the surface of Mars is about two-fifths as strong as it is on earth.点拨：倍数词/分数/百分数as 形容词或副词原级as - 是的几倍/几分之几/百分之几 4.So a person who weighs 90 kilos on earth weighs only 36 kilos on Mars.点拨：a person who weighs 90 kilos on earth - 一个重达90公斤的人 思考：句中第一个weighs是_句的_; 第二个weighs是_句的_5.It takes a spaceship about eight months to reach Mars from the earth when the two planets are closest to each other.同义句：A spaceship _ _ _ _ _ Mars from the earth when 点拨：be closest to- 离最近 拓展：离近_;离远_6.Scientists are still searching for more information about Mars. 点拨：search - 搜寻，搜索，搜查(动词) 拓展：search sb. / sth - 搜某人的身/搜某物 search for sb. / sth.- 搜寻某人/某物 练习:消防员在建筑物中搜寻幸存者。Firefighters were _ the building _ survivors.7.Scientists think that there has been life on earth for millions of years. 思考：There has been是There be结构的_时态 _拓展：There be结构的过去时态是_; There be结构的将来时态是_或_ 8.It has been two days since we landed on Mars. 同义句：It _two days _ we landed on Mars.练习：a.自我们上次上街购物已经是两个月了。It _ _ two months _we _ shopping. b.他父亲死了十年了。It _ ten years _ his father _. 同义句：a. His father _ ten years _. b. His father _ _ _ for ten years.9.Generally, the journey went well, but the living conditions were quite bad during the journey. 点拨：go well - 进展顺利 一切进展顺利译：_10.We had to limit the use of water during those days. 点拨：limit - 限制(动词) the use of - 的使用 注意：use在此是名词链接：use -_( ) useful-_( ) useless-_( ) reuse-_( ) user-_( )11.Whats worse, our water supplies were very low. 点拨：supply -供给(名词) 链接：supply -供应(动词) - supply sth. for sb.= supply sb. with sth.-给某人供应某物12.I often miss the family, but the excitement of being on Mars is worth it. 点拨：be worth sth. - 值 链接： be worth doing sth. - 某事值得做练习：a.这辆汽车值一万美元。The car _ _ 10,000.b.这本书值得一读。The book _ _ _.【当堂反馈】Feedback.(A)根据句意及首字母提示补全单词。1.Hes doing r_ on the causes of cancer.2.The book is b_ on a real story.3.He wouldnt travel with us b_ the border(边境).4.My knowledge of French is pretty b_.5.The weather report says that there will be a strong s_ this