Unit 2 Colours and ClothesLesson 12 学案学案一、重点词汇一、重点词汇Clock, half, quarter, past二、重点句型二、重点句型1)Not yet.2)Its time for三、重点句子解析三、重点句子解析1.Half an hour.半小时。半小时。half 作名词，表示“一半”，表达“一半”时，用 half a(n)，例如：half an apple 半个苹果。表示“一个半”时要说：oneand a half 或 one and a half+（名词复数） 。例如：one hour and a half一个半小时；one and a half hours 一个半小时2.It says quarter to three.它显示两点四十五分。它显示两点四十五分。1）say 在此表示“说，显示，写着，报道”。例如：My watch says ten to four.我的表显示 3:50。The TV says there will be heavy rain in the afternoon.电视报道下午将有大雨。2）有关 say 的固定用法：Its said that据说that is to say 换句话说say hello to sb 向某人问号say good-bye to sb 向某人告别say to oneself 自言自语地说四、同步练习四、同步练习I. 用用 past 和和 to 写出下列时间写出下列时间1. 8:07_2. 8:15_ 3. 9:25_4. 10:30_5. 11:40_6. 12:00_II. 单项选择单项选择1. I have lunch for _. A. a half hour B. half an hourC. half a hour D. an half hour2. Time _go to school. A. to B. for C. at D. for to3. Its nine fiftyfive. We also say “five _ ten”. A. at B. past C. toD. in4. When did she_ home?A. went B. go C. going D. goes5. It is _ hours walk. A. a B. anC. the D. halfI. 1.eight past seven 2.(a) quarter past eight 3.twenty five past nine 4.half past ten 5.twenty to twelve 6.twelve oclockII. 1.B 2.A 3.C 4.B 5.B