四川省广安市岳池县第一中学高中英语《Module 4 Sandstorms in Asia 第3课时》学案 外研版必修3

Period 3: Language Points学习目标1. 扎实掌握高频词汇的用法，提升综合语言运用能力。2. 自主学习，合作探究；学会分析与总结的方法并学以致用。3.激情投入，惜时高效，体验进步的快乐。4.了解沙尘暴对环境的影响，唤起人们加强环保意识。重点：1.重点词汇的学以致用。2.掌握重点短语的用法。课前预习预习自测：经典句式再现1make宾语宾语补足语(it作形式宾语)The storms sometimes continue all day and traffic moves very slowly because the thick dust makes_it_difficult_to_see(降低了能见度)2cant help but不得不做I _ (不得不感到)very concerned.3if形容词/副词The garbage is then taken away and，_(如果可能的话)，recycled.get sb to do sth让某人做某事The “Green”movement tries toget_governments_to_think_seriously_about(让政府认真思考)the environment and how to look after it.课内探究质疑探究：核心短语点入线，基础建1. cut down砍倒；削减，缩小(尺寸、数量或数目)；驳倒Firstly，when people cut down trees，generally they can only use the land for a year or two.(安徽卷)首先，一般说来人们砍倒树后，那地也就使用一两年而已。cut in 插嘴，打断cut _切断；中断；隔绝cut out_cut across走捷径；抄近路穿过cut _刺穿Im cut_out for gardening.我擅长园艺。He felt almost_during the long period in hospital.长时间住院他感到近乎与世隔绝。2. take in包括；吸收；理解；欺骗Alcohol is taken in more quickly when drunk with fruit juice.同时饮用果汁酒，酒精吸收更快。take back收回(诺言)；带回take down拆掉；拉低(衣服)；写下take up占据；以后；继续take on 呈现；雇用take over接管；占领take off脱掉；起飞；成功Please _the story，Sir，for Im eager to know what happened then.先生，请继续讲那个故事，我很想知道后来发生了什么事。She _ completely with her story.她用她的故事把我完全蒙蔽了。3. give out放出；发出；宣称；公布；发表；分发；用完；耗尽；精疲力竭巧学助记Both the man and the horse gave_out after the long ride.赶了很长一段路后，人马俱疲。It was _ that the minister would visit our school.据说部长要来我们学校。小贴士(1)give out意为“分发；发表；放出”时是及物动词短语。(2)表示“用尽，用完”时，give out与run out是不及物动词短语，主语常是物，不能用于被动语态；而use up，run out of是及物动词短语，可用于被动语态。主语往往是人。We used up the petrol.Our petrol was used up.We ran out of the petrol.Our petrol ran out.Our petrol gave out.我们汽油耗光了。4. 学情诊断(1)介、副词填空The new tax rates come _ effect from April.It wont be easy to put the plans _ effect.Modern farming methods can have a negative effect _the environment.We warned them，but _no effect.(2)Can you describe the effect that high technology has_your life?AtoBforCinDon归纳拓展have an effect on对有影响come into effect生效；开始实施bring/o effect使生效；实行，实施take effect开始起作用，见效to no effect毫无效果；不起作用in effect (in fact)实际上；在实施中5. 双语释义 简言之；总之；一句话(in a word，shortly speaking)学情诊断(1)同义词语替换To_put_it_in_a_nutshell，the show was a total disaster.To_put_it_simply/To_be_brief/In_brief/In_short/In_a_word(2)完成句子_，in Qianmen Street you can enjoy the Chinese lifestyle.总之，在前门街你可以享受到中国式的生活方式。_，people in the south like rice.总的来说，南方人喜欢大米。当堂检测：1. Which do you think is more dangerous，an earthquake or a sandstorm?你认为哪一种更危险，地震还是沙尘暴？句型公式：疑问词do you think句子的其余部分,(陈述语序)学情诊断(1)将下列句子合并Who can answer the question？Do you think?Who_do_you_think_can_answer_the_question?Where does he live？Do you know?Do_you_know_where_he_lives?(2)Mum is coming.What present _ for your birthday?Ayou expect she has gotByou expect has she gotCdo you expect she has gotDdo you expect has she got归纳拓展(1)在句型“疑问词do you think句子其余部分”中，do you think为插入语，其后的句子部分用陈述语序。用于该句式结构的动词除think之外还有believe，suppose，suggest，expect，imagine等。(2)do you know与疑问词连用时，不能把疑问词放到句首。2. Sandstorms in China appear to have increased in recent years as a result of “desertification”.因“荒漠化”越发严重，中国近年来发生沙尘暴的次数明显增加了。学情诊断(1)用所给动词的适当形式填空The boy student pretended _(finish) his homework.Im sorry _ (keep) you waiting for such a long time.He is said _ (study) abroad for many years.(2)People in developed countries are supposed _ more healthy food before than what they have today.Ato be hadBto haveChadDto have had归纳拓展不定式的完成式表示不定式的动作或状态在句子谓语动词表示的动作或状态之前发生，意为“已经做了某事”。课后训练选词填空cut down；take in；in a nutshell；be caught in；look through；give out1Who will _a dirty pet like that?2We should _ chemical plants to protec