经典英语资料Unit 1 Food for thought-Using language教案.docx

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1、Unit 1 Food for thoughtUsing language【教学目标】1. 掌握本课的重要词汇与句式；2. 使学生能够了解并掌握情态动词的基本用法，并学会根据语境选择合适的情态动词。【教学重难点】使学生能够了解并掌握情态动词的基本用法，并学会根据语境选择合适的情态动词。【教学过程】Step 1 课前自学一、知识梳理Activity 1Look at the sentences from the reading passage. Think and work out the meanings of the words in bold.a . I was able to hold

2、a knife and forkand chopsticks!b But there are still some dishes that Dad dare not try even after many years of marriage to my mother.c . Mum and I just have to find a way to get him into the kitchen!d . wed better not eat too much roast food as it may make us suffer from heat inside our bodies, .e

3、“You neednt try it if you dont want to,” Mum said, .Now have the Ss to talk about the function of modals. Then match the meanings to the words in bold above. And check the answers in whole class.1. be afraid to do something2. not be necessary to do something3. give advice to do or not to do somethin

4、g4. be necessary or give strong advice to do something5. have the ability to do something(Answer: a-5; b-1; c-4; d-3; e-2)Now get the Ss to look for more sentences with modals in the reading passage.二、主要用法精讲情态动词（Modals）本身具有一定的词义，不能独立作谓语，必须和动词原形一起构成谓语。情态动词虽然数量不多，但用途广泛。常用的情态动词包括can (could), may (might

5、), will (would), shall (should), must, need, dare, had better, ought to, used to等。本单元所学的情态动词及其具体用法如下，教师可根据学生的学力酌情安排教学。1. be able to后接动词原形，表示某人做某事的能力可用于大多数时态。用于过去时态时，还可以表示某人过去或当时成功地做了某事。例如：a. I will be able to speak Japanese in another few months.（再过几个月，我就能讲日语了。）b. They were able to escape from the b

6、uilding when the fire broke out.（火灾发生时，他们设法从那栋建筑里逃了出去。）2. dare & needA. dare 作情态动词时，主要用于否定句、疑问句和条件从句中，一般不用在肯定句中。例如：How dare you say Im unfair?（你怎么敢说我不公平？)B. need表示需要或必须，作情态动词时用于否定句或疑问句中，在肯定句中一般用must, have to, ought to 或 should 代替。例如You neednt come so early.（你不用这么早来。）C. dare和need常用作实义动词，有时态、人称和数的变化。所

7、不同的是，作实义动词时，在肯定句中dare后面通常接带to的不定式；在否定句和疑问句中，dare后面可接带to或不带to的不定式。例如：a. I dare to swim across this river.（我敢游过河去。）b. He does not dare (to) answer.（他不敢回答。）3. have to的含义与must相似，两者往往可以互换使用，但have to有各种时态，且强调客观需要，意为不得不。例如：I have to leave because of the bad weather.（因为天气不好，我不得不离开了。）4. had better后接动词原形，意为最好

8、，用于现在时或将来时，可用于一切人称，没有任何词形变化。had better的否定式是在其后加not,疑问式是把had和not提前。例如：a. Youd better sit here and have a rest.（你最好坐在这儿休息一下。）b. She had better not tell lies any more.（她最好再也别撒谎了。）c. Hadnt the doctor better see him?（医生是不是去看看他比较好？)Step 2 语法探究情态动词(Modal verbs)是本身有一定的词义，表示语气的单词。但是不能独立作谓语，只能和动词原形一起构成谓语。情态动词

9、用在行为动词前，表示说话人对这一动作或状态的看法或主观设想。Step 3 自学检测补全句子a. Its still early；you _.天还早，你没有必要匆忙。b. Since the bus is too crowded，we _.既然公交车太拥挤，我们最好步行回家。c. You _ unless youd like to.除非你愿意，你不需要见他。d. She _ by herself at night.她不敢在晚上独自一人外出。e. The coach _ other people.教练员必须有能力与其他人保持良好关系。1根据本节语法Modals (1)，把句子补充完整；2根据所学，总结个别情态动词也可作实义动词的用法，并比较它们之间的区别。Step 4教师讲解1. 核对同学们自学检测的答案。2. 根据课前自学内容，对情态动词的基本用法进行更详细的补充说明。3. 让学生把从课文中找到的相关的句子并写出、分析。Step 5小组合作学习全班分为若干个小组并完成以下任务：1. 完成课本第5页活动2。2. 限时活动：在课本2-3页的课文中找出更多包含情态动词的句子，看看哪个组找得又多又快又准。Step 6Homework完成课本P5活动3。3/3