山东省泰安市肥城市第三中学高中英语 Unit 4 Astronomy the science of the strars（第二篇）课文学案 新人教版必修 3教学内容学习目标: 1.知识与能力：To grasp the main idea and know the language points in this passage2 过程与方法：To know how the story develops 3.情感态度价值观：To master the main idea of the text .学习重点: To know the main idea of the passage and some language points..学习难点: To master the main idea of the text and some language points.. 【学案使用说明】提前认真预习课文的前提下完成学 习 指 导即时感悟【课前预习】请同学们把下列短语翻译成汉语1.乘宇宙飞船 _________ 2.被向后退到座位上________3.有机会做某事__________ 4.去旅行_____________5.向某人解释某事____________ 6.离开_____________7.挣脱地球引力_____________ 8.掉回到_____________9.离…..很远____________ 10.接近_____________11.感到高兴\振奋____________12.迈步向前_____________13.摔倒_____________ 14.既然_____________15.掌握\精通_____________ 16.突发\爆发_____________【自主 合作 探究】细读课文，完成下列练习。1......,but it will not be as strong a pull as the earth’s.……,但它不如地球的引力那么强。此为 as...as...比较结构： [解析] as+adj +a(an)+n+as 是一个固定结构：I can't buy as good a book as that one=I can't buy a book as good as that one.我不能买到和那本书一样的书。(1)他和他的父亲一样是个帅男人。_________________________________________________________ (2)我希望你和你的爷爷一样过着健康幸福的生活。_________________________________________________________基本用法：as+形容词或副词原级+as 分句。否定形式为 not as/so...as。 John is _____________ Bob.约翰与鲍勃一样聪明。The girl was __________________ she was be autiful.这姑娘既漂亮又聪明。 2......,I found I was carried twice as far as on the earth and fell over.……[解析]倍数表达法：(1)...times as...as... 是……的几倍(2)...times+形容词/副1词比较级+than(3)...times+the size/height/length/width/depth+of我的房子是我父母房...
