优化课堂2012高二英语精品课件：UNIT 4 PERIOD Ⅲ USING LANGUAGE（新人教版选修6）.ppt

1、Section Using LanguageI am doing a project on behalf of my school aboutglo-bal warming.我正在代表学校做一项关于全球变暖的课题。1on behalf of 代表一方；作为的代言人典例We attended the global meeting on behalf of ourcountry.我们代表我们国家参加了这次全球会议。on ones behalf(on behalf of sb.)代表某人；作为某拓展人的代言人运用 完成句子I will take part in the English speakin

2、g competition_(代表)my school.on behalf of There are many people who have a commitment likeyours,but they do not believe they have the power to doanything to improve our environment.有很多人跟你有同感，但是他们却不相信自己有能力来改变环境。2commitment n承诺；交托；信奉典例 His political commitment is only skin-deep.他政治上的承诺只是表面文章。拓展 make a

3、commitment to sb.向某人作出承诺运用 完成句子She doesnt want to _(对作出任何承诺)him.make any commitment toWe do not have to put up with pollution.我们不必去忍受污染。3put up with 忍受；容忍典例 I cannot put up with my noisy roommates.我忍受不了我那吵闹的室友们。拓展 put away 收好put up 搭建；张贴put down 放下；记下；平息put out 扑灭put on 穿上put off 推迟运用 完成句子I wonder h

4、ow you _(忍受)her.She washed the cups and _(把它们收好了)_(放下)that book and help your motherwith the housework.put up with put them awayPut downIt is OK to leave an electrical appliance on so long asyou are using itif not,turn it off！只要你在使用电器设备，你便可以把它开着。如果不用就把它关掉！4so long as 只要解析 so long as 意为“只要”，用来引导条件状语从

5、句，相当于 as long as。如：We can arrange everything so long as we have enough time.只要有足够的时间，我们就能安排一切。运用 完成句子_(只要)you are happy,I will accompanyyou for ever.So/As long asRecycle cans,bottles,plastic bags and newspapers ifcircumstances allow you to.如果情况允许，可以把罐头盒、瓶子、塑料袋和报纸回收利用。5circumstance n环境；情况典例 He was fo

6、rced by the circumstances to do this.他做此事是为环境所迫。拓展 in/under no circumstances在任何情况下决不；无论如何不in/under the circumstances在这种情况下；情况既然这样运用 完成句子_(在这种情况下)he felt hecouldnt accept this requirement._(在任何情况下都不能)shouldyou lend Paul any money.In/Under the circumstancesIn/Under no circumstancesRememberyour contribution counts!记住，你的贡献是很有价值的！6contribution n贡献解析contribution 意为“贡献”，既可作可数名词，也可作不可数名词，常构成短语 make a contribution/contributions tosth./doing sth.如：Robots can make a contribution to finish tough work.机器能为完成艰难工作做出贡献。运用 完成句子The invention of paper was _(对的一大贡献)human civilization.a great contribution to