约960字。
　　Unit 2《Healthy Eating 》语法教案
　　Grammar---教案
　　Teaching Aims:
　　1. Knowledge aims
　　Students shall be able to learn the basic usage of the following modal verbs: can/could; may/might; must/have to; shall/should; will/would
　　2. Ability aims
　　1) Students will develop the ability to deriving general rules for modal verbs from particular facts or instances.
　　2) Students will be able to use modal verbs in their writings and daily munications.
　　3. Emotional aims
　　1) Students will feel how widely modal verbs are used in daily life and how they function.
　　2) Students will bee more sensitive to the modal verbs by using them in certain situations.
　　Important points
　　1. The usage of each pair of the modal verbs
　　2. The sameness and differenong these pairs of modal verbs
　　3. Correctly understand the change modal verbs bring to the sentences, that is, their functions.
　　Difficult points
　　1. Clearly know how to use the modal verbs and use them easily
　　2. Make distinguishing among the modal verbs
　　Teaching methods：Induction
　　Teaching aids：A puter
　　Teaching procedures
　　Step 1 Revision
　　1.lead in
　　T: First wealth is health. What should/shouldn’t we do to keep healthy? What kind of food must we eat to be strong? What ought we to eat to stay slim?
　　2.Give some more situations to revise the usage of the modal verbs.
　　a. My mother cooked a lot of food for me. She has been cooking all the mornin