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 comp ... ...
