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1、Unit 2 Topic 3 What can we do to protect the environment 【学习目标】1.学习由连词or,and,but,和while连接的复合句；2.从“减量”，“再使用”，和”再循环”的角度讨论保护环境。【预习案】一、 读1a，回答问题1.What is Jane working for? _2.Whats Janes main job? _3.What does the three Rs refer to? _二、 在文中找到并划出下面的短语1.一名的学生_2.一名来自的记者_3.环境保护_4.为一个组织工作_5.我的专职工作_6.传播信息_7.使
2、用纸的正反面_8.循环使用塑料袋_9.不仅而且_7.省钱_10.鼓励某人做某事_11.搜集废纸_12.饮料罐_13.把他们分类_14.为了, 以便于_15.应该_16.把垃圾分类_17.垃圾的种类_18.努力工作_19.考试不及格_20.正忙着做饭_21.点头_22摇头_23.快点！_24.错过公交车_25.数次失败_26.放弃_【探究案】 在文中划出下面的句子并分析1. We all know that youre working for an organization that protects the environment.译：_思考：句中的第一个that引导 _从句, 第二个that
3、引导_从句点拨：work for 为工作 链接：play for - _拓展：work as - 充当，担当 work on-从事 work out -算出 work hard at -在方面工作努力巩固：a. We should work for our motherland to make her stronger and more beautiful . 译：_ b. You can work as a teacher like Linda after college. 译：_ c. He is working on a special job to protect the enviro
4、nment. 译：_ d.Can you work out how much money it will need? 译：_ e.Work hard at English and you will make great progress soon. 译：_2.My main job is to help spread the message about protecting the environment.译：_总结：help sb. (to) do sth.-帮助某人做某事help sb. with sth.-帮助某人某事cant help doing sth.-禁不住做某事练习：1.每天做
5、锻炼有助于保持健康。_ _every day _ _ _ fit.2.我昨天帮助我妈妈做家务活了。I _ my mother _ _ _ yesterday. 3.你能帮帮我的英语吗？ Can you _ me _ my English? 4.听到那个消息后，她禁不住哭了。_ _ the news, she _ _ _.3. I think recycling can not only protect the environment but also save money.译：_点拨：not only but also 不仅而且, 并列连词短语，连接并列的各种成分，当连接并列主语时，谓语动词和
6、邻近的主语保持一致，即“就近原则”。 练习：1.不仅我们而且她以前也到过那里。_ _ we _ _ she _ _ there _. 2.他不仅说了，而且做了。He _ _ said it, but also _ it. 3.我们不仅学习汉语也学习英语。_ 4.他不仅是一位老师，还是一位作家。_4.Its nice of you to do that. 译：_点拨：Its +形容词+of sb. to do sth. -某人做某事真是太 (形容词是描述人的品质的)同义句转换： sb. be + 形容词+ to do sth.练习：It is nice of you to help us. =
7、_ are nice _ _ _.区别：Its + 形容词 + for sb. to do sth. 做某事对于某人来说很（形容词是描述事物的特征）同义句转换：To do sth. is + 形容词 + for sb.练习：It is necessary for us to wash hands before meals.=_ _ _is_ for us.巩固：a.对我们来说每天练习说英语是必要的。Its _ _ us to practice _ English every day. b.帮助我们做了这么多活儿你真是太好了。Its kind _you _ _ us with _ _ work.
8、 c.你那样和你父母讲话是不礼貌的。Its _ _you _ _ _your parents _ that.4. Everyone is supposed to do so. 译：_点拨：suppose (根据所知)认为, 推断,料想, 后接宾语从句，注意第一人称时否定前移练习：I suppose that the price will go up. 译：_变为否定句：_点拨：be supposed to do sth.-(按规定，习惯，安排等）应该, 必须, 有义务做某事, 语义相当于ought to和should练习：1）我认为你一小时前就应该在这儿。I think you _ _ _ _
9、 here an hour ago2) 你应该早点完成作业。You _ _ _ _ your homework earlier.5. About 35 of the garbage in Hong Kong can be recycled every year while the rest cant.译：_点拨：the rest-剩余的(人或物) 拓展：the rest of-(人或物中)剩余的 练习：a.他的余生很精彩。_ _ of his life _ _. b. Mary和Beth要去看电影，其余的女孩则要去买东西。 Mary and Beth will _ _ _ _and _ _ _the girls are to go shopping. 语法
