Unit 8 We are trying to save the earth! 学案（6课时，无答案）

Unit 8 We are trying to save the earth! Period 1 Section A 1a-2d 知识与能力：1.识记本课的单词及短语。 听懂并理解下列句型句型：What was the problem? -What caused the problem? -How should the problem be solved? 重点：本节的单词短语和相关句型的读写和运用 难点：现在完成时；现在进行时；被动语态；used to, 情态动词的用法。 一、预习案 Task 1 读写记忆本课单词和短语，小组检查读写情况 充满了_____ 2. 河底_____ 3. 太多的垃圾和废物 _____ 把........扔进_____ 5. play a part in _____6. turn…into_____ 7.cut down the air pollution _____ 8. 代替 _____ 9. keep public places clean and beautiful_____ 10. 影响，作用 _____ Task 2 句型感知 .Everyone in this town should play a part in cleaning it up! _____ 对于渔民来说没有鱼可捉。 _____ The air has become really polluted around here. _____ 它对健康有益，并且不花费任何东西。 _____ our actions can make a difference and lead to a better future! _____ Task 3根据句意及首字母提示完成单词 1. There will be fines for people who drop l_____. 2. He found some treasure at the b_____ of the sea. 3. In winter, some people burn c_____ to keep warm. 4. The cat is not beautiful. I think it’s u_____. 5. The book c_____ me five dollars yesterday. 探究案： (1). How should the problem be solved? _____ 此句用了_____语态。其结构为:_____ 【译一译】空气被严重污染。 The air _____. （2）We’re trying to save the earth! _____ 此句用了_____时态。其结构为:_____ 【译一译】我们正努力学习英语。_____ (3)But it used to be so clean! _____ used to do意思为_____，是表达_____时态，它的一般疑问句句 型为：Did +主语+use to do? 常与其混淆的结构有：be used to do/for doing(被用于做某事), be/get used to doing(习惯于做某事)。 【译一译】 1) 我过去起得晚，但是现在习惯早起。 I used to _____ up late, but now I’m used to _____ (get) up early. 2) 刀是用于切东西的。 Knives are used _____. /Knives are used _____. 训练案： 1) We’re trying _____ (save) the earth. 2) There used to_____ (be) clean and beautiful. 3) If the problems _____ (not solve), people won’t be happy. 达标案 一、用所给单词的适当形式填空. 1.The old building (set up) yesterday. 2.There are many people (pick) up apples. 3.Tim was badly hurt, so he had to stop (walk). 4.That house is old and dangerous. It should (pull) down. 二、 单项选择： 1、I know that Ms. Lee was always patient you in math class. A. to B. for C. of D. with 2.Some new buildings for the farmers in the village every year. A. were built B. are built C. is built D. will be built 3.There used to be a river in front of the city, ? A. did it B. usedn’t it C. didn’t there D. did there 4.Let’s turn the radio down. Your father . A. is sleeping B. slept C. sleeps D. is sleep 三．句型转换 1.Some endangered animals are looked after in the zoo.（改为同义句） Some endangered animals are of in the zoo. 2.We planted many trees in our school yard.（改为被动语态） Many trees in our school yard. Unit 8 We are trying to save the earth! Period 2 Section A 3a-3c 知识与能力：1. 能够掌握本课出现的重点词汇、短语和句子。 能够准确理解3a课文。 重点：.本课出现的重点 ... ...