M4U2-Grammar and usage 设计思想：通过对情态动词的各种基本功能的解释，帮助学生理解情态的作用，让他们能更好的去理解各种表达的含义，同时配以相对应的练习，来进一步对他们的所学进行检查。Teaching Aims:1. Learn that modal verbs can be used to talk about ability, obligation, certainty or permission, to make requests, suggestions, offers and to give advice.2. Help students compare similar modal verbs.3. Enable students to learn that some modal verbs can be used with the continuous form and the perfect form to talk about current affairs or past actions.4. Learn to use modal verbs with exercises.Teaching Important Points:1、Develop the students’ ability of using modal verbs.2、How to make students master the usage of modal verbs.Teaching Difficult Points:Develop the students’ ability of using modal verbs and how to make students master the usage of modal verbs.Teaching Methods:Explanation and exerciseTeaching Aids:1. The multimedia2. The blackboard【教学环节】Step 1 DictationHave a dictation of the new words, phrases and sentences in the part of Reading text.【课堂导入】Step 2 Lead in: provide some daily life situations and ask students to fill in the blanks using proper modal words1. A: Who ________ it be? (can)B: It _____________ be Tom. (may/might)A: No. It _______ be Tom, because he flew to Shanghai this morning.(can’t)B: OK. It ________ be Jack. He promised me to come here this moment.(must)2. ---May I come in?--- Yes, you ______________. (may/can)--- No, you ______________.(mustn’t)3. ---Must I do it now?--- Yes, you ________________. (must/have to)--- No, you ________________.(needn’t)4. You ________________ eat a lot before swimming.(shouldn’t/oughtn’t to)5. You __________ use this toothbrush. It’s mine.(shall not)6. Children _______...
