(
课件网) 冀教版英语七年级下册 Lesson 17 School Science Fair Lead-in Let's enjoy a video. Lead-in Look at the pictures. What's a science fair What can you see at a science fair Presentation Learn new words prize n. I got an A in the exam. So my mom bought a toy as my prize. 我在考试中得了A。所以我妈妈给我买了 一个玩具作为奖赏。 Presentation video n. Let's enjoy a video at home instead of going to the movies. 让我们在家看录像，而不去电影院。 Presentation piece n. He wrote down my name on a piece of paper. 他把我的名字写在一张纸上。 Presentation visitor n. Thousands of visitors come to the Forbidden City every day. 每天有数以万计的游客去游览紫禁城。 Match each word with its meaning. Presentation prize 张；片 piece 奖品；奖赏 visitor 参观者 video 录像；视频 Fast reading — Circle the phrases in the passage and guess their meaning Presentation talk about science fair be ready for first prize a piece of different kinds of 准备好…… 不同种类的 一片/张 谈论 科学展览 第一名 Presentation Read the passage again and pay attention to the key points. Danny and Jenny are talking about their school science fair. They are very excited. Danny: Hey, Jenny! Are you ready for the big science fair next week Jenny: Oh, I hope so. I worked really hard this year. I hope to win first prize. Danny: Don't worry, Jenny.You will do a great job! What is your project about Jenny：It's about silk worms. I am really interested in this subject. I made a video about silk worms. Danny：Wow！ Presentation Jenny：I have a small piece of old silk. I also have a silkworm for the visitors. Danny：Silk worms are interesting. Jenny：Yes, they're amazing! Danny：My project is good, too. Jenny：What is it about, Danny Danny：My project is all about donuts. I talk about the history of donuts. I will make ten different kinds of donuts. And people can taste them all. Presentation Learning Tip Do you know what a fair is？A fair is a place where people go to present their work or buy and sell different goods. At a science fair people present science projects and others come to see the projects. At a town fair people sell different goods and others come to buy the goods. Presentation Careful reading — Read and answer 1.What are Danny and Jenny talking about 2.What's Jenny's project about 3.What does Jenny have for the visitors They are talking about their school fair. It's about silk worms. She has a silk worm for the visitors. Language points 1 Don't worry, Jenny. 别担心，詹妮。 此句是由“Don't＋动词原形”构成的否定祈使句；肯定祈使句的结构为“动词原形＋其他成分”，用来表示请求、命令等。例句： Don't be careless. 别粗心。 Please open the door for me. 请帮我打开门。 Language points 2 I have a small piece of old silk. 我有一小片旧丝绸。 a piece of 一张/片/块，后接不可数名词时，表示不可数名词的数量。复数形式为pieces of “几张/片/块”。例句： Would you like another piece of bread 你想再要一片面包吗？ I need two pieces of paper. 我需要两张纸。 La ... ...
