1、Unit 6 When was it invented?Grammar FocusSection B 1e 一、教学目标1. 熟练掌握下列词汇和短语：fridge, low, somebody, translate, lock, ring, earthquake, sudden, bell, biscuit, cookie, musical, instrument, sour, customer, all of a sudden, by mistake2. 掌握并运用下列句型：When was the zipper invented? Its was invented in 1893.Who
2、was it invented by?It was invented by Whitcomb Judson.When was tea brought to Korea?It was brought to Korea during the 6th and 7th centuries.What is the hot ice-cream scoop used for?Its used for serving really cold ice-cream.Did you know potato chips were invented by mistake?3. 掌握一般过去时被动语态句型结构的肯定、否定
3、和疑问结构及其应答。4. 能够听懂使用被动语态谈论美食的发明史的文章，同时掌握使用一般过去时的被动语态谈论美食的发展历史。5. 了解对人类有重大意义的发明，开阔学生的眼界，养成勤于思考，善于发现的好习惯。二、教学重点及难点重点：1. 一般过去时被动语态句型结构的肯定、否定和疑问结构及其应答。2. 了解有关美食的发明史的文章，在听的过程中准确获取和处理信息。难点：1. 掌握使用一般过去时的被动语态谈论美食的发展历史。2. 掌握一般过去时被动语态句型结构的肯定、否定和疑问结构及其应答。三、教学准备教师：教学课件；多媒体设备学生：课前预习四、教学过程Task 1Step 1 Warming-upLo
4、ok at the pictures and have a talk.【设计意图】通过问答环节，复习学过的有关被动语态的短语，检测学生对旧知的掌握情况。Step 2 PresentationWork on Grammar focusRead the sentences in Grammar Focus and learn the usage of them.Grammar points一般过去时的被动语态构成：一般过去时的被动语态由“主语+was/were+及物动词的过去分词”构成。助动词be有人称、数和时态的变化，其变化规则与be作为连系动词时完全一样。Step 3 PracticeDo s
5、ome grammar exercises and check the answers.Work on 4a4b1. Rewrite the sentences using the passive voice.2. Complete the sentences with the correct forms of the verbs in the box.【设计意图】让学生通过阅读题干的方式来总结一般过去时被动语态的用法，教师加以总结归纳，加深学生印象。后让学生做题巩固一般过去时被动语态这一重要的语法点。Step 4 ProductionWork on 4cWrite the correct f
6、orms in the blanks.【设计意图】通过被动语态的专项训练，提高学生对语法的掌握能力。Task 2Step 1 Pre-listeningFree talkLook at the pictures and answer the questions.Work on 1aWrite the words under the correct pictures. Some pictures have more than one word.Work on 1bWrite the name of a different food after each word.【设计意图】通过谈论学生熟悉的话
7、题，激发学生的学习兴趣并学习新词汇，为后面1b听力活动作铺垫。Step 2 While-listeningWork on 1c1d1. Listen and circle T for true or F for false.2. Listen again and complete the sentences.【设计意图】通过听力训练的方式，训练学生在听力过程中理解目标语言内容和提取信息的能力。Step 3 Post-listeningWork on 1eMake a conversation about the invention of potato chips.【设计意图】培养学生小组间或成
8、员间合作意识，运用学过的目标语言进行合作交流，提升语言运用能力。Step 4 SummaryKey words and phrases: fridge, low, somebody, translate, lock, ring, earthquake, sudden, bell, biscuit, cookie, musical, instrument, sour, customer, all of a sudden, by mistakeKey sentences:When was the zipper invented? Its was invented in 1893.Who was i
9、t invented by?It was invented by Whitcomb Judson.When was tea brought to Korea?It was brought to Korea during the 6th and 7th centuries.What is the hot ice-cream scoop used for?Its used for serving really cold ice-cream.Did you know potato chips were invented by mistake?Step 5 Homework Write a short
10、 passage about “The History of Potato Chips” using the information in 1c and 1d. 五、板书设计Unit 6 When was it invented?Grammar FocusSection B 1eKey words and phrases: fridge, low, somebody, translate, lock, ring, earthquake, sudden, bell, biscuit, cookie, musical, instrument, sour, customer, all of a su
11、dden, by mistakeKey sentences:When was the zipper invented? Its was invented in 1893.Who was it invented by?It was invented by Whitcomb Judson.When was tea brought to Korea?It was brought to Korea during the 6th and 7th centuries.What is the hot ice-cream scoop used for?Its used for serving really cold ice-cream.Did you know potato chips were invented by mistake?
