M4U2-Grammar and usage教学案
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 exercise
Teaching Aids:
1. The multimedia
2. The blackboard
【教学环节】
