福建省南安市石井镇厚德中学九年级英语上册 Unit 4 Topic 3 What do you know about Mars Section C导学案（无答案）（新版）仁爱版.doc

unit 4 topic 3 what do you know about mars 【学习目标】了解更多关于火星的知识。【预习案】一、读1a的内容，完成1b 二 、在文中找到并划出下面的短语41.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 _ _10.a useful place to dry fruit_ 11.a good place for human beings to live_ _ 12.a comfortable place for heavy people_ 13.水的供应_14.限制水的使用_ 15.思念家人_ 【探究案】 在文中划出下面的句子并分析1 its diameter is 53 as wide as that of the earth. 译：_ 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.c.美国的人口没有中国多。the population in america _ _ _ _ in china.d.城市的楼比农村的高。the buildings in the city _ _than _ in the country.2.mars goes around the sun at a distance of about 228 million kilometers. 译：_ 点拨: at a distance of -相隔 拓展：at/from a distance - 在远处 练习：a. put the stone at a distance of about twenty meters here. 译：_b. the police followed him at a distance. 译：_3.the gravity on the surface of mars is about two-fifths as strong as it is on earth. 译：_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 练习：a.这个盒子是那个盒子的四倍重。 this box is _ _ _ _ _ that box. b.这个房间是那个房间的三分之一大。this room is _ _ _ _ _ that room.4.so a person who weighs 90 kilos on earth weighs only 36 kilos on mars. 译：_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.译：_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. 译：_ 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: a. simon searched his mind but he couldnt come up with the answer. 译：_ b.警方在寻找失踪的孩子。the _ are _ _ the _ child.c.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. 译：_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_ 此外还有：可能有_; 一定有_; 过去经常有_ 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 译：_ 练习：a.do these colors go well together. 译：_b.things didnt go well for us at first, but everything is fine now. 译：_c.fish doesnt go well with mutton. 译：_ d.一切进展顺利。译：_10.we had to limit the use of water during those days. 译：_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. 译：_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. 译：_ 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.这事值得我们付出劳动。it _ _ our work.c.这本书值得一读。the book _ _ _.【归纳】i. 选词填空1. the enemy _ (researched, searched) the village for the killer. 2. we are making scientific _ (researches, searches) on mars. 3. the sign says “_ (risk, danger)! falling rocks.”4. we mustnt _(risk, danger) getting cold in a storm. 5. he saw a building some distance _ (beyond, above) the wood. 6. there were _ (beyond, above) 200 people. 7. he is busy with his _ (research, search).8. the brave man _ (risked, danger) his life in trying to save the child. ii. 按要求变化下列各句1. the question can be answered by him. （改为被动语态） he _ the question.2. he doesnt come here. i think. （合并成一句） i _ think he _ here.3. they traveled to the moon