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1、Unit6 When was it invented ?Section B 1a-1eTeaching aims and demands:1. Learn the new words 2. Go on learning the past tense of passive voice3. Train the students listening speaking reading and writing skillsTeaching important points:1. Listening skills2. Be able to describe the foods tasteTeaching
2、difficult points:Rewrite the listening material Emotional attitude and value aims：Encourage students to interest in inventionsTeaching procedure:Step 1 Review and Lead-inReview the passage of tea by asking questions;1 When was tea first discovered ?2 Who was it discovered by ?3 How was it invented?T
3、: Have you drunk tea? How do they taste?Step 2 Presentation1. present the new wordsShow some pictures and learn :salty crispy sour Then ask students to do 1a2. Brain stormAsk: Can you think of some fruit which is sweet /sour? What food is crispy? Complete 1b.Step3 ListeningTask1 T:Do you like potato
4、 chips? Why or Why not ? So do you know the history of potato chips? Now listen and answer the questions.1) When were potato chips invented ?2) Who were they invented by ?Task 2 1c Listen and circle T for true or F for false1) Potato chips were invented by mistake. 2) They were invented in 1863. 3)
5、The customer thought the potatoes were not thin enough.4) The customer said they were not salty enough.5) George wanted to make the customer happy .6) The customer was happy in the end.Task 3 1d Listen again .complete the sentences.Let the students read the passage aloud in order to check the answer
6、s. Step 4 Practice1. After listening,first ,let students read the listening material,Then rewrite the passage .show a passage and fill in the blanks2. make a conversationA :Did you know potato chips were invented by mistake?B: Wow,I didnt know that. Who invented them?A: Step 5 SummaryWords: salty so
7、ur crispy sweet Ask: What have you learned from the invention of potato chips ?Let ss discuss it.T : Small inventions changed the worldStep 6 Homework1. Read and write words.2. Write a short essay about potato chips.Blackboard DesignUnit 6 When was it invented ?Section B1a-1eSalty -When was it inven
8、ted ?Sour -It was invented.Crispy - How was it invented ? -It was invented by mistake教学反思：本节课主要以听力为主，通过学习薯片的发明，学习巩固一般过去时的被动语态。本节课通过复习茶的历史,由句型 -When/how/who was it invented (by)?到茶的味道，自然过渡到学习其他描述食物口味的新单词salty sour .鼓励学生积极参与教学活动。听力方面注重对学生听前指导，提高听的效能。听力任务设计，由易到难尽量给学生留以足够的听的机会。听后注重语言训练，根据所学的词汇、短语和语法进行对话，听力原文复述，达到学以致用，有效的锻炼了学生的语言组织能力和表达能力。