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1、高中英语语法教案精品文档就在这里 -各类专业好文档，值得你下载，教育，管理，论文，制度，方案手册，应有尽有- - 高中英语语法教案 Teaching Goals: 1. To enable Ss to know about the way to express possibility and improbability. 2. To enable Ss to master the usage of “may”, “might”, and “likely”. 3. To help Ss learn how to use modal verbs “may” and “might” to expre
2、ss conjecture. Teaching Procedures: Step 1. Revision Check the answers to the Vocabulary exercises in the Workbook. Step 2. Function 1. Ask Ss to do Activity 1 on page 54 and call back the answers. Then give them the correct answers. 2. Ask Ss to identify the creatures in the pictures in Activity 4
3、on page 55, by using “may” or “might”. Arouse their interest in talking about possibility. 3. Ask Ss to do Activity 2 on page 54 individually. Then check their answers. Step 3. Grammar 1. Leading-in Ask Ss to work in groups and discuss the question in Activity 1 of Grammar on page 57. Then give them
4、 the right answer. 2. Explanation Explain how to use modal verbs to talk about something which happened in the pastperhaps. (1) 对过去的事情进行猜测，但把握较小时，肯定形式一般用may have done，否定形式一般用may not have done。如: He may have gone back home, because he didnt say he would take part in her birthday party. He may not hav
5、e paid for the bill, because he had lost his job. (2) 对过去的事情进行猜测，但把握更小时，肯定形式一般用might have done，否定形式用might not have done。如: They helped send her bat to the hospital; otherwise, she thought, the baby might have died. She might not have left home when I got to school. (3) 对过去的事情进行猜测，并且可能性较大时，肯定形式一般用mus
6、t have done，否定形式一般用cant have done。如: Your score is the highest; you must have studied very hard. You cant have seen her in her office last Friday; shes been out of town for two weeks. 3. Practice Ask Ss to do Activity 2 on page 57. Then call back the answers and correct them. 4. Supplements Explain
7、how to use modal verbs to talk about something which happened at presentperhaps. 用来表猜测的情态动词有:must, can, may等，但它们所表示可能性是不同的。 (1) 对现在的事情进行猜测，并且可能性较大时，肯定形式一般用must加动词原形，此时，must不再表示“必须”，而是表示“肯定”;否定形式一般用cant加动词原形，此时，can不再表示“能够”，而是表示“肯定不”。如: -精品 文档- 精品文档就在这里 -各类专业好文档，值得你下载，教育，管理，论文，制度，方案手册，应有尽有- - I saw hi
8、m go out just now. He cant be in his own room. It must be Linda in the classroom, because she is on duty today. (2) 对现在的事情进行猜测，但把握较小时，肯定形式一般用may加动词原形，此时，may不再表示“可以”，而是表示“可能”;否定形式一般用may not加动词原形。如: He may tell the truth to his father. She may not angry because she is good-tempered. (3) 对现在的事情进行猜测，但把握
9、更小时，肯定形式一般用might加动词原形;否定形式一般用might not加动词原形。如: She might not be angry because she usually is very patient. (6)直角三角形的外接圆半径He might be at home now, but Im not sure. (4) 情态动词+动词现在进行时，表示对现在或将来正在进行的情况进行推测。如: (1)相交: 直线与圆有两个公共点时,叫做直线和圆相交,这时直线叫做圆的割线.At this moment, our teacher must be correcting our exam pa
10、pers. 其中点在圆上的数量特征是重点，它可用来证明若干个点共圆，方法就是证明这几个点与一个定点、的距离相等。Doctor Wang isnt here. He might be giving a lecture in the hall. (5) 情态动词+动词的现在完成进行时，表示对过去正在发生事情的推测。如: （3）圆内接四边形：若四边形的四个顶点都在同一个圆上,这个四边形叫做圆内接四边形.Your mother must have been looking for you. 定义：在RtABC中，锐角A的邻边与斜边的比叫做A的余弦，记作cosA，即;The light was on t
11、he whole night. He may have been doing his homework all the time. (5）切线的判定定理: 经过半径的外端并且垂直于半径的直线是圆的切线.5. Consolidation 一年级有学生 人，通过师生一学期的共同努力，绝大部分部分上课能够专心听讲，积极思考并回答老师提出的问题，下课能够按要求完成作业，具有一定基础的学习习惯，但是也有一部分学生的学习习惯较差，学生上课纪律松懈，精力不集中，思想经常开小差，喜欢随意讲话，作业不能及时完成，经常拖拉作业，以致学习成绩较差，还需要在新学期里多和家长取得联系，共同做好这部分学生行为习惯的培养工
12、作。Ask Ss to translate the following sentences. (1) 他们也许错过了那班飞机。 (2) 快点他们正在机场等我们。 (3) Tom是个诚实的孩子。他今晚可能会把真相告诉他父亲。 (4) 他五年前来看过我，他也许不费劲就能找到我的住处。 (2)如圆中有直径的条件,可作出直径上的圆周角.（直径添线成直角）. Homework Step 41. Ask Ss to review Grammar. 和三角形各边都相切的圆叫做三角形的内切圆,内切圆的圆心叫做三角形的内心.2. Ask Ss to finish Grammar exercises in the Workbook pages 9798. -精品 文档(二)知识与技能：-