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1、Unit 4 Natural DisastersPeriod3 Describe pictures of disastersDescribe pictures of disasters主题语境:人与自然- 灾害防范主题群下自然灾害与防范:地震,火山喷发、台风、飓风等。语篇类型:句子、图片文本分析：本节课设计了三个活动让学生在描述地震火山喷发、台风、周风等自然灾害的过程中,学习本单元的语法-限制性定语从句，把语法学习融入主题意义探究的过程中，提高学生语言学习的能力，发展学生的语言思维能力。同时在语境中呈现、学习、应用语言表达功能，提高语言使用的得体性，实现语言的语用功能课时目标1.学习关系代词t
2、hat, which,who, whose,whom引的定语从句。2能够使用关系代词hat,whih,who, whose，whom引导的定语从句进行描述震后救援工作。重点难点重点对关系代词that, which,who, whose,whom引导的定语从句的理解。难点:恰当使用关系代词that, which, who, whose,whom引导的定语从句进行描述震后救援工作。教学准备教师准备:关系代词that,whih,who, whose,whom引导的定语从句的相关练习。学生准备1,预习定语从句。找出课本第50页含有定语从句的句子并翻译成汉语。教学过程StepI学习理解活动一:认识定语从
3、句1, Find and underline the restrictive rela tive clauses in the sentences below, What function do the restrictive relative clauses have?(1)The Tangshan earthquake was a terrible experience that my great grandma cannot forget.(2)The couple who live next to us volunteered to help after the volcano eru
4、pted.(3)The supplies which were provided to the disaster area were collected from around the country.(4) Mr Li is an architect whose designs lor the new town have won praise.(5)A doctor with whom James used to work died in the 2016 earthquake in Ecuador.2. Find more sentences with restrictive relati
5、ve clauses from the text on page 50._Suggested answers:(1)Two thirds of the people who lived there were dead or injured.(2)Soon after the quakes, the army sent 150, 000 soldiers to Tangshan to dig out those who were trapped and to bury the dead.(3) Workers built shelters for survivors whose homes ha
6、d been destroyed.【设计意图】通过学习五个含有关系代词引导的定语从句的句子，学生初步认识定语从句的特征，教师适当讲解定语从句的构成形式和关系代词的作用。然后让学生根据自己的理解在第50页课文中寻找更多关于定语从句的例句，加深自已对定语从句的认识。Step II应用实践活动二: Complete each sentence with that, which, who,whose, whom, or"/". Then translate the sentences into Chinese1. Here are some of the people _homes
7、 were destroyed by the typhoon2. The terrible shaking of the building woke up all the people _ were asleep.3. The next day, people put up shelters in the open air using anything_they could find4. Several days later, most of the buildings _ had been damaged by the hurricane were repaired5. The injure
8、d boy_ mother was lost in the disaster was taken to the hospital.6. The woman wrote a thank- you letter to the soldier by _she was rescued.7. Is this the young boy _ saved several other students trapped under buildingsSuggested answers1. whose 2.who 3.that/不填 4. which/that 5. whose 6.whom 7. who【设计意
9、图】在对定语从句有了初步了解和认识之后设计了选择适当的关系代词填空，有助于促进学生对关系代词的理解。设计英汉互译活动，能够使学生理解定语从句在英语和汉语中的位置差异，有助于学生对定语从句的深入理解。Sep迁移创新活动三：语境中应用定语从句Work with a partner. Take turns to ask each other about the pictures. Make sentences with restrictive relative clauses using that, which, who, whose or whomEXAMPLEA:What's the r
10、escue worker doing?B: She's feeding the baby who survived the earthquake.【设计意图】在学习和练习了定语从句的常见用法之后，让学生置入新的情境中，通过对图片的观察，发挥自己的想象力，选择使用适合的语言表达形式来描述图片的场景，有助于对所学定语从句有了更深刻的理解和更准确把握：另外一方面，学生在实际运用中能发现自已在语言学习中的不足，能够有针对性地去加强训练和学习以弥不足之处。板书设计Unit 4 Natural DisastersPeriod3 Describe pictures of disasters(1)Th
11、e Tangshan earthquake was a terrible experience that my great grandma cannot forget.(2)The couple who live next to us volunteered to help after the volcano erupted.(3)The supplies which were provided to the disaster area were collected from around the country.(4) Mr Li is an architect whose designs lor the new town have won praise.(5)A doctor with whom James used to work died in the 2016 earthquake in Ecuador.