Unit 6教学目标知识与能力 New words and expressions过程与方法 learn to use Passive Voice in past tense 情感态度与价值观Love magic nature. Love great inventions.重点难点Potato chips were invented by mistakes. The customer said they were not salty enough.课型 New lesson教学手段 media教学过程师生活动个案部分 Step 1 Warming up1. Let Ss watch an interesting picture. 2. Ask some questions about them. Then look at some other delicious food, please. Step 2. Talking Work on 1a 1. Tell Ss that the words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word. 2. Ss work with their partners and try to write some proper words under the pictures. 3. Let some Ss read their answers. Try to remember the new words.Then try to finish 1b Step 3. Listening Work on 1c 1. Tell Ss the conversation is about how the potato chipswere invented. The story is very interesting.教学过程2. First, let one Ss read the sentences in 1c. Make sure they know the meaning of each sentence. 3. Play the recording for the Ss. Listen for the first time. Play the recording again and judge T or F. Keys: T, F, T, F, F, TWork on 1dLet Ss read the article in 1d first. Tell Ss to listen again and fill in the blanks with the right words. Step4. Pair work 1. Work in pairs. Make a conversation about the invention of potato chips. Use the information in 1c and 1d.2. Ask some pairs to act out their conversation in front of the class. Step5. Homework Try to retell the invention of potato chips. 板书设计教学反思3