UNIT 8 Save Our World
Unit Review
设计说明 首先利用图片引领学生回顾本单元的重点词汇,为接下来的习题做好铺垫;在课堂活动中引入竞争机制,使学生们跃跃欲试,兴趣高涨,既增强了学生们之间的竞争意识,又与本单元话题相联系、呼应。用习题来检查上一课时的掌握情况,再用对话来检验运用所学知识的能力。根据语言知识设计适当的交际活动,让学生用英语理解、表达和交流,从而体现“用英语做事情”的原则。最后,由听、说、读的训练过渡到写的训练。 教学目标 通过本课节的教学,学生达成以下目标: 1.知识目标 (1)掌握本单元新学的单词、短语和句型; (2)掌握本单元的语法:it的用法 2.能力目标 (1)熟练掌握与本单元话题相关的语言结构; (2)能够运用目标语言谈论与环境相关的话题。 3.情感目标 了解并学习关于环境保护的相关数据和知识,开阔视野;了解自己所生活的城市、国家的环境污染问题,培养“保护环境,人人有责”的责任感。 重点难点 1.重点:掌握it的用法。 2.难点:能够就本单元相关话题用正确的语言进行描述。 教学准备 PPT 课件;本课节用到的录音 授课时数 1课时 教学过程 Step 1 Class Opening Class work. A guessing game. The students will see some pictures. Look at the pictures carefully and guess the words in this unit. See who can get the words most correctly and fastest. Step 2 Building Your Vocabulary Fill in the blanks with the words from this unit. The first letter is given. 1. A: What does r mean B: It means “garbage”. 2. Please talk slowly. I cannot f you. 3. Smoke and gas p the air. 4. We should value time, not w it. 5. Many students in environment clubs try to make less p . Answers: 1. rubbish 2. follow 3. pollute 4. waste 5. pollution Step 3 Phrases in use Fill in the blanks with the correct forms of the phrases in the box. throw away turn...off pick up neither... nor... more than
1. We should the garbage in the schoolyard and put it into the garbage bin. 2. The garbage bag is full. How much did you after lunch 3. 70 percent of the earth is covered by water. 4. Don’t leave the lights on. Please them . 5. Hebei Province Jilin Province is in the south of China. Answers: 1. pick up 2. throw away 3. More than 4. turn; off 5. Neither; nor Step 4 Grammar it的用法 1. it 的用法 (1)it作代词 it不仅可以指代具体的物品,还可以指代时间、距离、路程、天气等。 It is half past five now.现在五点半了。 It is sunny and hot in my hometown in summer. 在我的家乡夏季晴朗、炎热。 (2)it作形式主语 当句子的主语过长时,为避免头重脚轻通常将it置于句首作形式主语,而将真正的主语(通常是不定式短语、动名词或主语从句)放在句子的后面。 It is important for us to use English as much as possible. 对我们来说尽可能多地使用英语是很重要的。 It is reported that there will be a thunderstorm tomorrow. 据报道明天将会有一场雷雨。 (3)it作形式宾语 当句子的宾语过长时,常用it作形式宾语,用来代替真正的宾语(通常是不定式短语、动名词或宾语从句)。 I found it hard to walk through the forest in five hours. 我发现在五个小时之内穿越森林是件很困难的事。 Jim thinks it is a pity that he didn’t win the first place in the English competition. 没有在英语竞赛中获得第一名,吉姆觉得很遗憾。 2. 动词不定式作主语的用法 动词不定式的基本形式为“to +动词原形”,它能起名词的作用,在句子中可充当主语、表语、宾语和宾语补足语。动词不定式在作主语时,常用it作形式主语,而往往将动词不定式放在谓语或表语之后。 It’s not easy to learn a foreign language well.(= To learn a foreign language well is not easy.)学好一门外语不容易。 在此句型中,如果要说明动词不定式的动作是谁做的,可在不定式前加一个for引起的短语,作不定式的逻辑主语。即:It is + 形容词 + for sb. + to do sth.(对某人来说做……是……的)。 It’s difficult for us to finish the work.对我们来说,完成这项工作很困难。 It’s hard for me to answer your question.要我回答你的问题很难。 但是,如果表语是kind, nice, right, wrong, clever, polite等描述行为者的性格、品质的形容词,则应在不定式前加一个of引起的短语。即:It is + 形容词 + of sb. + to do sth. (某人做……是……的)。 It is kind of you to help me with my lessons.你帮助我做功课,太好了。 It is so nice of you to come to see me.你来看我太好了。 It takes/took + sb. + some time + to do sth.意为“做……花了某人多少时间”。 It takes her an hour to review her lessons every day. 她每天花一个小时复习功课。 It took them more than two years to build the bridge. 他们花了两年多的时间建成了那座桥。 It is +名词+ to do sth.意为“做……是……”。 It is our duty to serve the people.为人民服务是我们的责任。 It is an honour to make a speech here. 在这儿演讲很荣幸。 注意: 动词不定式作主语,同时有一个不定式作表语时,不能转换成“It’s … to do sth.”句型。 百闻不如一见。 [正] To see is to believe. [误] It’s to believe to see. Step 5 Grammar in Use Rewrite the sentences using “it”. Example: We went to Beijing. We left at 8 o’clock and arrived at 12 o’clock. →It took us four hours to travel to Beijing. 1. We should finish the project in an hour. It is hard. 2. We will go to the schoolyard to play. It will be fun. 3. People often waste paper. It is not right. 4. We should protect the environment. It is our duty. Answers: 1. It is hard for us to finish the project in an hour. 2. It will be fun for us to go to the schoolyard to play. 3. It is not right for people to waste paper often. 4. It is our duty to protect the environment. Step 6 Listening Listen to the passage and tick the correct answers. 1. Where were Li Ming, Wang Mei and Li Lin □They were by the river. □They were at the school. 2. Who collected the most garbage □Li Ming. □Wang Mei. 3. What did they find in the garbage □A toy bike. □A toy truck. Answers:1. They were by the river. 2. Li Ming. 3. A toy truck. The tapescript: Li Ming, Wang Mei and Li Lin took a walk along the river. They saw a lot of garbage. They got three plastic bags and began to pick up the rubbish. In the end, Li Ming collected the most and Wang Mei the least. But Wang Mei was very happy because she found a toy truck. It was only a little bit broken. They fixed it so it could run again. “It’s not right to waste things. A lot of them can be reused,” Li Ming said. Step 7 Speaking Complete the following dialogue. Jenny is sorting the garbage. She needs some help. Jenny: Hi Danny! Come here. Danny: I’m coming. What’s the matter Jenny: Danny: Of course. Jenny: I want you to help me sort the garbage. Danny: No problem. Jenny: I’ll put these plastic bottles in this bag. And you put the waste paper in that bag. Danny: OK. Jenny: That’s done. Danny: With pleasure. Answers: Can you help me What can I do for you Could/ Can you help me take the garbage out Step 8 Putting It All Together Read the passage and answer the questions. 1. What does Danny use the cardboard for 2. What does Danny use the lids of the ice cream pails for 3. What does Danny use for the headlights of the car Answers: 1. He uses the cardboard for the car’s body. 2. He uses the lids of the ice cream pails for the car’s wheels. 3. He uses old metal cans for the headlights of the car. Step 9 Writing My City’s Future! Does your city have pollution problems If it does, think about ways to reduce pollution. Make a plan about how to save your city. If it doesn’t, think about how to make your city more beautiful. Write a letter to the government describing your plan. An example: There is much pollution in my city. How can we reduce pollution First, we should take our own bags instead of using plastic bags when we go shopping. Second, we shouldn’t throw away rubbish anywhere. At last, we had better go to school or work on foot or by bike. I think these ways can help save our city. Step 10 Self-Evaluation Instruct the students to complete Parts Ⅰ and Ⅱ of the Self-Evaluation by adding more examples to each section.(i.e. If they give four examples in Section Ⅰ, they earn four stars for that section. If they give one example in Section Ⅱ, they earn only one star for that section.) Check the answers. Step 11 Sing a song Step 12 Summary 1. it的用法 2. 谈论环境污染以及如何保护环境 3. 本单元的生词及交际用语 Step 13 Homework 1. Remember the new words and expressions learnt in UNIT 8. 2. Review using “it”. 当堂达标 单项选择 1. —Mr. Han, how is the weather in Anshun now, please —Actually, it is cooler than in Guiyang. A. it B. that C. this D. those 2. —Nick, I lost my pen and I couldn’t find anywhere. —There are many pens in that box. Just take . A. it; it B. it; one C. one; it D. one; one 3. —The fridges are on sale in the supermarket today. —Really Let’s go and buy for our new kitchen. A. one B. it C. that D. them 4.—I am planning a trip to Lianyungang this summer. How is the weather there —Not so hot. Sometimes is a bit cool and wet. A. this B. that C. it D. one 5. We find impossible for us a foreign language well in a short time. A. one; learn B. it; to learn C. that; to learn D. this; learning 答案: 1-5 BBACB 板书设计 UNIT 8 Save Our World Unit Review it作代词 it作形式主语 it作形式宾语 It is + 形容词 + for sb. + to do sth. 对某人来说做……是……的。 It is + 形容词 + of sb. + to do sth. 某人做……是……的。 It takes/took + sb. + some time + to do sth. 做……花了某人多少时间。
教学反思
·
英语 河北教育版 七年级上 教案,由《中学教材全解》友情提供。祝您工作顺利!