7BUnit5Grammar（2）教案课题7b unit 5 grammar 课型新授课教学目标1、进一步学习巩固如何使用can与could表达现在与过去的能力及可能性2、学习用what和how构成感叹句重难点分析尽可能熟练用can与could表达现在与过去的能力及可能性；运用what和how构成感叹句学情分析学生已经基本掌握can与could的使用，但熟练性灵活性不够；对what和how构成感叹句已有初步认识，但对其具体结构还要进一步学习教学方法情景教学法,归纳法教具准备课件教学步骤教师活动学生活动个性化补充step 1 revisiont: we have learned two ways about using “can” and “could” , can you tell me something about them? you can discuss in groups of four.help them review the rule together.step 2 reviewing and testinga. fill in the blanks:1._ you speak japanese? no, i_.2._you play the piano when you were eight?yes, i_.3._ you cook?yes i _.4._you use computer last year?yes, i_.5._you play basketball? no,i_becausei_run fast.6._you ride ahorse?i want but i_. can表示我们能做某事; could表示_能做某事。 b. design a scene about reading “a brave young man” , ask them the following questions about the text. pay attention to the second way of using “can” and “could”. 1. why couldnt mrs sun get out of the kitchen? 2. what could happen if zhang hua didnthelp her ?can与could还可表示，could 表示的可能性比can。当我们谈论过去的可能性时，只能用。但我们不能用can或could谈论。show them more pictures ,have them make sentences with “can” and “could” correctly.c. exercises: 用“can”&“could”的正确形式填空1. i_ go to school on foot, becausemy home is not far away from school.2. without air, we _ live.3. it will be hot tomorrow so we _wear short sleeves. (袖子)4. i forgot my key. i _ open the door.5. he was at home alone. he _ be in hospital.step 3 show them pictures, help them express with “what” and “how”. fill in the blanks. eg.what a big fire!how dangerous!what a brave girl she is!how brave the girl is!what a beautiful flower!what beautiful flowers!what beautiful snow!step 4 discussion and conclusiont: hats the main idea about the expressions with “what” and “how”.感叹句表示说话的惊讶,喜悦,气愤等情绪.