1、Unit 5 Working the LandUsing language学习目标掌握本节生词及句型表达与运用。词汇连连看1. organic 2. pesticide 3. bacterium 4. fertiliser/fenilizer 5. mineral 6. grocery 7.分布广的;普遍的;广泛的8.消化,领会;领悟9.完全必要的;极其重要的10.可供选择的事物;可供替代的;非传统的11.根;根茎;根部;根源12.(尤指以法令)禁止;阻止13.例子;实例;事例14.向下(或向里)的距离;深(度)15.全部地;完整地;完全地16.相应地;转而;依次;轮流句型总结1、Chemic
2、al pesticides and artificial fertilisers have been in widespread use in farming since the middle of the 20th century.自20世纪中期以来,化学农药和人工肥料在农业中得到了广泛使用。since 的用法since 意为“自从时候起”,多与完成时连用,当其引导时间状语从句时,动作多发生在过去,用一般过去时。主句的动作是从 since 从句的动作发生延续到现在,所以用现在完成时或现在完成进行时。2、Many people worry that these chemicals may ma
3、ke them ill and even cause cancer.“make+宾语+宾补”结构在此结构中可用作宾补的有名词,形容词、省略to的动词不定式,过去分词等,注意在 make sb do sth 的被动结构中,不定式符号 to 不能省略。make sb do sth(迫)使某人做某事 make sb/sth +形容词 使某人/某事物处于某种状态make sb/ sth +名词 使某人/某事物成为;让某人/某事物担当某职务make sh/sth +过去分词 使某人/某事物被（宾语和宾语补足语之间是逻辑上的被动关系）3、As for chemicsl fertilisers, crops
4、 grown with them usually grow too fast to be rich in nutrition.至于化肥,使用它们种植的作物通常生长得太快,而没有太多的营养。too. to.结构意为“太而不能”,表示否定意义。当 too 前面有 all， but，only，just，never 等词修饰,too后面的形容词表示心情或为描绘性形容词,如 happy, pleased, willing,thankful, delighted, anxious, eager, kind, good, wise 等时,此结构没有否定意义,而表示肯定意义。4、Why different c
5、rops are grown is because they put important minerals back into the ground, making it ready again for the next batch of crops.现在分词短语作结果状语现在分词短语作结果状语,它的逻辑主语可以是整个句子的主语,也可以是前面整个句子,其表示的动作几乎和谓语所表示的动作同时发生,表示一种自然而然的结果。特别注意动词不定式作结果状语,往往表示出乎意料的结果,其前常有 only;也可用于一些固定结构,如 too. to., enough to.等。写作指导正反观点型议论文1.文体介
6、绍正反观点型文章,也称观点对比型文章,属于议论文的一种。文章通过讨论一种现象或剖析事物来论述道理,发表意见或提出主张。作者往往从两方面阐明观点,摆事实,讲道理,给论据,辩证地说明某种现象,并简单陈述自己的观点。这种体裁的文章,观点明确,句式较为整齐。在时态方面,陈述正反两方面观点常用一般现在时,人称以第三人称为主。2.篇章结构这种类型的文章一般可分为四段：第一段:开门见山,引入话题;第二段:列举正方(一方)观点及理由；第三段:列举反方(另一方)观点及理由；第四段:表明自己的观点。3.常用表达Recently, weve had a hot discussion about.最近,我们就进行了热
7、烈的讨论。Opinions are divided on the topic.在这个话题上,意见存在分歧。People take different views on this problem.人们对这个问题有不同的看法。People who are for/ against the idea think that.赞成/反对这一观点的人认为However,. hold a different view/the opposite opinion.然而,持有不同的/相反的观点。However, each coin has two sides.然而,事物都有两面性。People who are a
8、gainst it dont think so.反对它的人不这么认为。From my point of view,.在我看来,As far as I am concerned, I am for/in favour of the former/latter view.就我而言,我赞成前一/后一种观点。练习：假定你是李华,你的英国朋友 Ben 来信询问你对学生上网交友的看法。请你用英文给他回一封信,介绍人们的观点并表达自己的看法,要点包括:1.赞成的理由:可广交朋友、自由表达思想、利于外语学习；2.反对的理由:浪费时间,影响学习,可能上当受骗;3.你的看法。注意:1.词数 100 左右；2.可适
9、当增加细节,以使行文连贯。【参考范文】Dear Ben,Im glad to reveive your letter. Its my pleasure to share my opinion with you about whether students should make friends online.Some people say yes. The Internet helps make many friends. Chatting online, students can express their feelings and opinions more freely, and eve
10、n get help with their foreign language study.Others, however, think students should not. They say making friends online is a waste of time, which should be spent more meaningfully on study. Besides, some studentsmay get cheated online.It is my opinion that students should place their study,health and safety before other things. As for friendship, we can readily find it in our classmates and other people around us.Yours,Li Hua