九年級英語Keeping Safe教案2
unit 8 keeping safe
一. 教學內容：unit 8 keeping safe 二、教學重點：1、must， mustn’t 和have to 的使用2、重點詞組 三、具體內容：（一）語法要點：have to和must的區別have to 的用法have to 常表示因客觀需要（由于外界因素的限制被迫）必須做某事，有“必須，不得不”的意思. 1. have to 有時態，人稱和數的變化. mary had to go to school with her teacher yesterday.2. have to 的否定形式是don’t have to，譯為“不必”. you don’t have to go shopping now.must的用法情態動詞must是表示人的主觀看法. 有“必須，應當”的意思. 1. must 沒有時態，人稱和數的變化. 2. must 的否定形式是must not，表示“不可，不許”的意思. you mustn’t waste your time.3. must 還可表示說話人對事物的肯定推斷，含有“一定，準是”的意思. mr. yin must be over forty now.ex. complete the rules with the correct forms of the verbs from the box。lee junior high school safety rulesall students in this junior high school must follow the safety rules:ride keep bring know leave use report talk allow●all students must walk on the right-hand side of the hall.●students should not sit on the stairs or block the hallways.●every class must have at least one first aid kit. students are not _________ to play with the things inside it.●students should not bring fireworks, cigarettes, wine, or drugs to school.●students must not ________ the school during school hours without reporting to the teacher.●sharp objects – things like knives, scissors, or dangerous weapons should not ______________ to school.●when students are having pe class, they should not _______ pens, pencils, or keys in their pockets. ●emergency rules must __________ to all students.●all injuries should _____________ to teachers.●students are not allowed _______ their bikes on the school ground.●roller-skates and skateboards cannot _________ on school ground at anytime.●students should not ____ with strangers around the school ground. （二）語言點：1. on the right-hand side of 在（靠）……右手邊in china, cars must be driven on the right-hand side of the road.在中國，汽車必須靠右行駛. 2. play with 玩，玩耍children shouldn’t play with knives.小孩子不應該玩刀. 3. as quickly as 盡快telephone the police as quickly as possible when you see a traffic accident.