Unit 13 Were trying to save the earth教案教学设计

1、Unit 13 Were trying to save the earth 教学设计学习目标(一) 知识与技能 1. To learn different forms of verb.2. To understand the use of Modal Verbs.(二) 过程和方法 3.To know how to use different forms of verb in different situations. 4. To know how to use Modal Verbs in different situations. (三) 情感态度和价值观 5. After learnin

2、g this part, every student will be able to describe their awareness of the serious situation of pullution and solutions to environmental problems using what we have learned in this lesson.自主梳理1. 判断下列句子中使用了什么时态及情态动词。1. We are trying to save the earth. 2. The river used to be so clean. 3. It was consi

3、dered the nicest river in the town. 4. The air has become really polluted. 5. We should help savew the sharks.2. presentation verb forms2) Modal verbs.Main function of Modal Verbs. can (could) 表示能力，could主要指过去时间；表示允许。 . may表允许，might可以指过去时间，也可指现在时间，语气更委婉。. must表示义务。意为“必须”（主观意志）. shall表征询意见. will表意愿，用于

4、各种人称陈述句；表请求，用于疑问句。. should / ought to应该重点领悟1) Fill in blanks with the correct forms of verbs.Interviewer: _ you ever _ (take ) part in an environmental project?Ken: Yes, I have. I _ (help ) with a Clean-Up Day last year. It was _ (consider) the biggest clean-up project this city _ ever _ (have).Inte

5、rviewer: How many people _ (take ) part?Ken: I _ ( think) more than 1,000 people _ (come) to help out.Interviewer: Thats fantastic! I guess everyone in this city is _ (try) to improve the environment.Ken: Yes, evertone should _(play ) a part in keeping the city clean.Possible answers: Have taken, he

6、lped, considered, had had, took, think, came, trying., play2) Fill in blanks with proper modal verbs. Can would could have to should might/may mustWhen it comes to saving the earth, people _ think that big things _be done. However, many forget that saving the earth begins with small things. For exam

7、ple, You _ save electricity by turning off the lights when you leave a room. You _ also use paper or reusable bags instead of plastic bags. In some stores, you now _ pay for plastic bags. I think this is a great idea. And instead of driving to school or work, you _ ride your bike or walk. If its far, you _ take the bus. All these small things _ add up and自主梳理 1. 现在进行时 2. used to 3. 一般过去时的被动语态 4. 现在完成时 5. should【重点领悟】1) Have taken, helped, consi