unit13导学案学生用.docx

Unit 13 We are trying to save the earth!导学案第一课时 Section A（1a ~ 2d）I. 知识目标重点词?1. litter v.乱扔；n. 垃圾；2. ugly adj. 丑陋的；3. advantage n. 优点；4. cost v. 花费； 5. wooden adj. 木制的； 6. bottom n. 底部；7. fisherman n. 渔民； 8. coal n. 煤； 9. plastic adj. 塑料的; 10. takeaway n. 外卖食物；11. bin n. 垃圾箱重点词组?1. at the bottom of the river在河床底部 2. be full of the rubbish充满了垃圾 3. throw litter into the river把垃圾扔入河中 4. land pollution土地污染 5. play a part in cleaning it up尽一份力把它清理干净 6. make a difference产生影响 7. fill the air with black smoke使空气中充满了黑烟 8. cut down air pollution减少空气污染重点句式1. Everyone in town should play a part in cleaning it up. 城里的每个人都应当尽一份力把它清理干净。 2. To cut down air pollution, we should take the bus or subway instead of driving. 为了减少空气污染，我们应当乘坐公汽或地铁而不是开车。II. 课堂环节【自学自查】根据汉语提示完成单词。1. We should put up notice to stop from (乱扔）。2. The teacher asked us to find a way to pick up the coins at the (底部）of the bottle.3. There are no more fish for (渔夫）to catch in the river.4. We should take the paper bags to go shopping instead of the (塑料）ones.5. Could you please tell us another (优点）of riding bike to work§课堂导学方案Step 1 情景导入Step 2 完成教材1a-1c的任务Step 3 完成教材2a-2c的任务词汇包：cost vt.1. 花费；价格为；值：例句: It must cost a good deal to live here.住在这里一定要花很多钱的[拓展]：take， spend ，cost ，pay的用法都可以表示“花费”，但用法却不尽相同。1. spend的主语必须是人， 常用于以下结构：(1) spend time ／money on sth. 在……上花费时间（金钱）。例：I spent two hours on this maths problem. 这道数学题花了我两个小时。(2) spend time ／money (in) doing sth. 花费时间（金钱）做某事。例：They spent two years (in) building this bridge. 造这座桥花了他们两年时间。(3)spend money for sth. 花钱买……。例：His money was spent for books. 他的钱用来买书了。2. cost的主语是物或某种活动， 还可以表示“值”， 常见用法如下：(1)sth. costs (sb.) ＋金钱,某物花了（某人）多少钱。例：A new computer costs a lot of money. 买一台新电脑要花一大笔钱。(2) (doing) sth. costs (sb.) ＋时间,某物（做某事）花了（某人）多少时间。例：Remembering these new words cost him a lot of time. 他花了大量时间才记住了这些单词。注意：cost的过去式及过去分词都是cost,并且不能用于被动句。新课 标 第 一 网3. take后面常跟双宾语， 常见用法有以下几种：(1) It takes sb. ＋时间＋to do sth. 做某事花了某人多少时间。例：It took them three years to build this road. 他们用了三年时间修完了