九年级英语全册 Unit 13 We re trying to save the earth Section A(3a 4c)课件 (新版)人教新目标版 课件VIP免费

Section A(3a-4c)任务任务 : 预习 Section A 3a, 完成下面的表格。 Where is shark fin soup popular? In 1. . How do people get shark fins? They 2. and 3. their fins and then 4. the ocean. What’s the number of sharks caught and traded every year? Around 5. . By what percent have some kinds of sharks fallen in the last 20 to 30 years? By 6. . southern China catch sharks cut off throw them back into 70 million over 90 percent 任务What have the environmental protection groups asked governments to do? 7. to stop the sale of shark fins. To develop laws I think it’s a great idea that you now pay for plastic bags in some stores. 我认为现在有些商店里塑料袋 付钱是个非常好的主意。 pay for 意为“付费 ; 付出代价”。如 :She paid three dollars for a hamburger.她花了三美元买了一个汉堡包。辨析 pay,cost,spend,take 都有“花费”之意 , 但用法不同 :(1)pay 表示花费金钱 , 主语是指人的名词或代词。其常见用法如下 :①pay (sb.) money for sth. 。如 :I pay the host 1,000 yuan for this house every month.我每月付给房东 1000 元房费。②pay for sth. 。如 :You have to pay for the lost book.你必须为丢失的书赔钱。③pay for sb. 。如 :Don’t worry!Our boss will pay for us.别担心 ! 我们的老板会为我们付钱的。④pay sb. 。如 :Do they pay you every month? 他们每月付你钱吗 ?⑤pay money back 。如 :May I borrow 12 yuan from you?I’ll pay it back next week.我可以借你 12 元吗 ? 我下周还。⑥pay off one’s money 。如 :He has paid off all his debts. 他还清了所有的债务。(2)cost 表示花费时间或金钱 , 主语是事物或某种活动。其常见用法如下 :①sth.cost(s) (sb.)+ money 。如 :This second-hand computer cost me 1,200 yuan.这台二手电脑花了我 1200 元。②(doing) sth.cost(s) (sb.)+time 。如 :Doing the housework costs me much time every day.每天做家务花费我很多时间。温馨提示 cost 的过去式及过去分词都是 cost, 并且不能用于被动语态。(3)spend 表示花费时间或金钱 , 主语必须是指人的名词或代词。其常见用法如下 :①spend time/money on sth. 。如 :Girls usually spend a lot of money on clothes.女孩通常在衣服上面花费很多钱。②spend time (in) doing sth./spend money on sth. 。如 :The workers spent more than two years(in)building this bridge.工人们用了两年多的时间建这座桥。(4)take 表示花费时间 , 后面常跟双宾语。其常见用法如下 :①It takes/took sb.+ some time +to do sth. 。如 :It took them nearly five years to finish the project.他们用了近五年的时间完成这个项目。②doing sth.takes/took sb.+ some time 。如 :Repairing this car took him the whole afternoon.修理这辆汽车用了他整个下午的时间。