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课件网) B2U1 Food for thought Using language After the class, the students are able to: 1.understand the functional meaning of modal verbs and choose appropriate modal verbs according to the context;? 2. practice the exercises related to modal verbs; 3. talk about related diet problems using grammar properly; 4. raise their awareness of healthy diet and develop physical quality. Learning objectives Step I : Activity1: lead-in: play a game How many modal verbs do you know? Can you find out the sentences with modals in the reading passage? Let's see who is the fastest? Modal verbs 情态动词 情态动词短语 现在式 过去式 can could be able to may might must have (got) to shall should ※ought to will would Now, Let's check the answers and praise the students who did the best. ①...I was able to hold a knife and fork and chopsticks! ② ...But there are still some dishes that Dad dare not try even after many years of marriage to my mother. ③ ...Mum and I just have to find a way to get him into the kitchen! ④...we'd better not eat too much roast food as it may make us suffer from heat inside our bodies, ... ⑤“You needn't try it if you don't want to,” Mum said,... Step II Activity2: Fill in the blanks using correct modal verbs ① ...I hold a knife and fork and chopsticks! ②...But there are still some dishes that Dad try even after many years of marriage to my mother. ③ ...Mum and I just find a way to get him into the kitchen! ④ ...We not eat too much roast food as it may make us suffer from heat inside our bodies, ... ⑤ “You try it if you don't want to,” Mum said,... was able to dare not have to had better needn’t Read the sentences in Activity2 and answer the questions. Talk about the function of modals. Then match the meanings to the words you filled. What are modal verbs? . What are the characteristics of modal verbs? . 通过观察以上句子，我们可以得知： 情态动词表示说话人的某种语气或情绪，如可能、意愿、猜测、义务、需要等。 有一定的词义，但不能单独作谓语，后面接动词原形；没有人称和数的变化（have to除外）；有些情态动词有过去式，如：can-could, may-might, will-would, dare-dared, have to-had to等。 1. be afraid to do something 2. not be necessary to do something 3. give advice to do or not to do something 4. be necessary or give strong advice to do something 5. have the ability to do something ①-5 ②-1 ③-4 ④-3 ⑤-2 I think all of you did a very good job, so today we will learn the usage of modal verbs. Step III Activity3: Learning of modal verbs 几种常见情态动词的用法： 一、be able to 1. be able to 后接动词原形，表示某人有做某事的能力，与can的用法相近。 I am able to speak English. 我能讲英语。 2. 【be able to 与can的辨析】 be able to有多种时态，如: was/were able to, will/ shall be able to, have/has been able to等, 而can只有两种时态, 即can和could。 be able to 强调通过努力而获得的能力, 而can则强调自身已具有的能力。如： She can sing the song in English. 她能用英语唱这首歌。 He will be able to s ... ...
