新版九年级Unit15教案.docVIP

教 案 题目（教学章节或主题）： Unit 15 授课日期：2014年3月9号 周日 授课时间：10:00-12:00 教学重点、难点：复习基本的时态（一般现在时，现在进行时，现在完成时、被动语态及一般过 去时used to+动词原形的用法 ） 重要性： 典型例题： 1. We should try ______ best to save the manatee. A. us 　　　B. our 　　　C. ourselves 　　　D. your ’ve worked in this school _____ twenty years.　A. since B. for C. after D. When 4. Mary ______ to school by bike when she lived in China.　A. used to go　　　B. was used to go　　C. was used going　　D. used to go 5 总结： 本次教学评价：非常满意 ○ 较满意 ○ 一般 ○ 家长或学生签字 共 小时 本节课回访记录： 任课老师签字： 主任签字： 日期： 讲 义 学生：罗淦 任课教师：李莉 教学过程： Unit 15 We are trying to save the manatees Grammar Structures Tenses We’re trying to save the manatees． Manatees eat about 100 pounds of food a day． Present Simple There used to be a lot of manatees．In 1972, it was discovered that they were endangered．Passive voice Some of the swamps have become polluted．Present perfect 时态知识点小结： 时 态 谓语动词的形式 （do/be） 一般现在时 do / does am/ is /are 一般过去时 did/was /were 现在进行时 be (am / is / are) doing 现在完成时 have / has done 一般过去时被动语态 was / were done 现在完成时被动语态 have / has been done 2. We are trying to save the manatee. 我们在尽力挽救海牛。 (1).本句的时态是现在进行时，表示现阶段正在做的事情。现在进行时所表示的动作并不一定在说话的时刻进行，而是在包括说话时刻在内的一段时间当中进行。 例如：My mother is writing a novel now. 我妈妈目前在写小说。 (2).动词短语try to do sth. 的意思是“尽力做某事”，实际做与不做视情况而定； try doing sth. 表示“试着做某事”，即动作真的进行了或者正在进行。 例如：He tried to read more, but it was too dark to read. 　　 他想要多看会书，但是天太黑了以至于不能看了。 【例题】They are trying ______ the child but they fail at last. 　　A. save 　　　B. to save 　　　C. saved 　　　D. saves 3. save v．挽救；营救 save one’s life 救……的命 It was too late to save the boy and he died．男孩未获得及时抢救，所以死了。 He has already saved a lot of land．他已挽救了大片的土地。 拓展节省，节约 We can save time and money by shopping at supermarket. 我们到超市购物可以节省时间和金钱。 All the students must save water. 全体学生必须节约用水。 储蓄，贮存 We should save some money for travelling. 我