1、Unit 13 We are trying to save the earth!Section B (3a-Self Check)导学案（第五课时）【学习目标】知识目标1. 会使用的短语：have a nice environment ； need to be improved ；get worse and worse 2学会使用以下重点句型：1) The river used to be so clean . 这条河以前是如此的清澈。2) We have seen many changes in the environment. . 我看到许多环境的变化。3) People should t
2、ake public transportation more .人们应更多的乘坐公共交通工具。4) The river is polluted by factories .河流是工厂污染的。5) The air pollution is getting worse and worse .空气污染正变得越来越严重。3.复习现在进行时、used to句型、被动语态、现在完成时和情态动词的用法。【学习过程】一、课前预习 用所给单词的适当形式填空。1. As Chinese, we should take active part in the _ (protect) of the environmen
3、t.2. We can make our lives better and easier with a little （create) .3. The man sailed across the sea alone by his _ (wood) boat .4. We should protect the environment by the _ (science) method. 5. You shouldnt wait until too late to understand the (important) to protect the environment.二、课上活动（教学过程）1
4、. 完成教材3a-ab部分的任务。(1).想一想你的城市的环境，完成3a的所给的表格。(2).根据3a 写的提要以及3b所给的提示，给你们的市长写一封信讲述你们城市的环境问题，并提出你的建议。学生完成后评出优秀的作文在班上展示。2. 完成教材self check 1-2部分的任务(1)按要求写出所给单词的不同形式，并添加。(2).把每个句子与所对应的语法结构连接起来。(3). 写出几种减少污染的方法，填入表格中。三、语言知识1. need to be done汉语意思： 相当于need doing 如：Which parts need to be improved? 哪些部分需要被改善？2.
5、What or who is causing these problems? 什么或谁将会导致这些问题？cause用作动词，汉语意思： 。一般指引起或造成不好的结果。 cause sb. sth.= cause sth. to sb.(后接间接宾语+直接宾语)为固定用法。It caused him lots of worries.= It caused lots of worries _ him He caused his parents much trouble. = 他给父母带来很多烦恼。3 used to do汉语意思： ，它的疑问式是：Did 主语use to do sth？否定式是：
6、主语didnt use。在英式英语中，它的疑问式应当是：Used 主语to sth？否定式应当是used not to.翻译：他过去常熬到很晚。 四、达标检测（一）单项选择( ) 1. My alarm clock doesnt work. It needs _ . A. to be repairedB. repair C. to repair D. for repairing ( ) 2. Your classroom is very clean.Sure. It _ after school every day.A. is cleaned B. cleans C. cleaned D. i
7、s cleaning( ) 3. (2019江苏淮安) Its getting dark. Please _ the light. A. turn on B. turn off C. turn down D. turn around( ) 4. The children were made _ homework first. A. do B. to do C. did D. doing（二）用所给词的适当形式填空1. The old man used _ (be) a teacher. 2. We should _ (clean) the room every day. 3. Lots of
8、trees _ (plant) on the hill every year. 4. He _ (live) here for 20 years.【写作演练】节约资源，保护环境，从我们身边小事做起，李雷是一个注重低碳生活的中学生，假如你是他，请以“My low-carbon life”为题，写一篇80词左右的小短文。提示词：go to school on foot ;turn off the lights when he leaves room;take his own bags when shopping; make full use of paper; instead of ;stop using paper napkins._ _
