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课件网) UNIT 5 WORKING THE LAND Section Ⅲ Using Language 1.了解课文大意，培养略读和查读等阅读能力。（学习能力） 2.理解并能够自主运用重要语言点的用法。（语言能力） 3.通过阅读熟悉议论文的文体特征,并掌握其写作方法及策略。（语言能力，学习能力） Step 1 文本整体理解，关注布局谋篇 Fill in the blanks according to the passage on Pages 55-56. Part 1（Paras.1-2） The 1._____with chemical farming. Part 2（Para.3） What organic farming is. Part 3（Para.4） Organic 2._____for producing rich soil. Part 4（Para.5） 3._____man-made chemicals are still used in farming. problems methods Why Step 2 细读课文，明确教材细节 Read the passage on Pages 55-56 and choose the best answers. 1.Why did many farmers welcome the introduction of chemical pesticides and artificial fertilisers ( ) A A.They can fight crop disease and increase production. B.They can protect the land. C.They look beautiful on the outside. D.They are not expensive. 2.What concerns many people about the use of pesticides ( ) D A.Pesticides can damage the land. B.Chemicals can stay in the soil for a long time. C.Pesticides can kill harmful bacteria and insects. D.Chemicals may make people ill and even cause cancer. 3.Why do organic farmers change the kind of crop grown in each field every year ( ) A A.It helps put important minerals back into the ground. B.It can avoid damage to the environment. C.It can help protect the crops from harmful insects. D.The author didn't tell us. 4.Why can't we stop the use of man-made chemicals in agriculture entirely ( ) D A.Organic farming cost us a lot of money. B.Organic farming can meet people's need. C.Chemical farming brought us huge profit. D.Chemical farming helps serve the need for food. 核心单词 知识点1 alternative n.可供选择的事物 adj.可供替代的；非传统的 ＊alternatively adv.或者 （P55）As an alternative, some farmers have switched to organic farming, and many customers have turned to organic food when they shop at the local grocery. 作为一种替代方法，一些农民已经转向有机耕作，而且许多消费者在当地杂货店购物时也转而选择有机食品。 知识拓展 have no alternative/choice but to do sth 别无选择,只好做某事 have the alternative of doing sth 有做某事的选择 There's no alternative/choice but to do sth. 别无选择，只好做某事。 an alternative to... ……的替代品 经典佳句 Failure is the mother of success. Sometimes, in order to succeed, we have no alternative but to face failure bravely and learn from it. 失败乃成功之母。有时候，为了成功，我们别无选择，只好勇敢地直面失败并从中吸取教训。 融会应用 单句填空 （1）The girl had no alternative but _____（accept） the offer. to accept （2）If you don't like the school lunch, you have the alternative of _____（bring） your own. bringing （3）We could walk or _____（alternative） we could go in Tim's car. alternatively 知识点2 depth n.向下（或向里）的距离；深（度） ＊deepen v.（使）变深；加深 （P56）Organic farmers also plant diverse crops that use different depths of soil to help k ... ...
