九年级英语Keeping Safe教案2

unit 8 keeping safe

一. 教学内容：unit 8 keeping safe 二、教学重点：1、must， mustn’t 和have to 的使用2、重点词组 三、具体内容：（一）语法要点：have to和must的区别have to 的用法have to 常表示因客观需要（由于外界因素的限制被迫）必须做某事，有“必须，不得不”的意思. 1. have to 有时态，人称和数的变化. mary had to go to school with her teacher yesterday.2. have to 的否定形式是don’t have to，译为“不必”. you don’t have to go shopping now.must的用法情态动词must是表示人的主观看法. 有“必须，应当”的意思. 1. must 没有时态，人称和数的变化. 2. must 的否定形式是must not，表示“不可，不许”的意思. you mustn’t waste your time.3. must 还可表示说话人对事物的肯定推断，含有“一定，准是”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）语言点：1. on the right-hand side of  在（靠）……右手边in china, cars must be driven on the right-hand side of the road.在中国，汽车必须靠右行驶. 2. play with  玩，玩耍children shouldn’t play with knives.小孩子不应该玩刀. 3. as quickly as  尽快telephone the police as quickly as possible when you see a traffic accident.           遇到交通事故时，要尽快给警察打电话.  4.   not … until   直到……才we didn’t go to sleep until mother came back last night.昨晚，我们直到妈妈回来才去睡觉. 5. as well as 也，又workers as well as farmers are working hard for the country.工人和农民都在为国家辛勤工作. 6. take a bath 洗澡i take a bath every day.我每天都洗澡. 7. be likely to  可能the train is likely to be late.            这趟火车很可能晚点.  8. hit someone (in, on…)   打在某人……he hit me in the stomach.他一拳打在我的肚子上. should we hit the person on the back?我们是不是应当拍打此人的背部呢？短语1. on the right-hand side of               15. be likely to do2. block the hallways                    16. get older3. at least                             17. have an accident4. first aid kit                          18. far away5. be allowed to do                      19. take drugs 6. play with                           20. avoid doing7. at anytime                           21. in case of          8. keep clam                          22. as quickly as possible      9. not until                            23. wait for      10. take a bath                          24. get hurt                        11. hit sb. on the back                    25. lose control                       12. in fact                             26. happen to do                      13. in daily life                         27. as well as                       14. get a head injury                     28. follow/obey the rules 课堂练习：一、单选：1. i’m sorry to ___________ you waiting for a long time.    a. keep                      b. make                         c. ask                       d. tell2. there are lots of english books here, and ________ of them is easy to understand. a. both                      b. all                            c. every                        d. each3. i will call on mr. wang ___________ two o’clock.    a. for                           b. until                       c. since                         d. after4. spring festival is coming, i will _______ up my room. i don’t want to live in a dirty room.  a. look                        b. clean                        c. set                           d. turn5. students ______ slippers when they are at school.a. don’t allowed to wear                                   b. are not allowed to wear      c. are not allowed to put on                              d. are not allowed to wearing6. –may i _________ to wendy, please?– hold on, please.a. say                         b. speak                       c. tell                            d. talk7. there are ________ boys outside and ________ noise there.    a. many, many             b. much, much              c. much, many          d. many, much8. –look! mr. hu is on the side of the street.    –it ________ be him. he has gone to beijing.    a. mustn’t                    b. can’t                      c. shouldn’t                  d. won’t9. i want to know _________ the day after tomorrow.    a. what he will do        b. what will he do      c. what he did              d. what did he do10. – may i go to the cinema, mum?    – ok. but you ________ come back before 11:30.  a. can                         b. may                         c. must                       d. need 二、完成句子1. 请尽快读完这本书。please ______________ the book __________________.2. 妈妈病了，我得在家照顾她。  mother is ill, i ______________________ and look after her.3.写完作业前不要看电视。  _______________________________________ before you finish your homework.4.别在床上看书，它对你眼睛有害。  ________________________________________, it’s bad for your eyes.5. 孩子们，请随便吃些苹果吧！  children, please ______________________________ some apples.6. 你愿意和我一起去购物吗？  ____________________________________________ go shopping with me? 三、用所给词的适当形式填空1. a man ________ (call) carl telephoned you just now.2. children like __________ (play) pc games.3. ___________ you __________ (know) what to do if there is a traffic accident?4. he is ___________ ( tall ) boy in his class.5. tell me ______________ (true) what you think about it.6. there are many ___________( boy) in the room.7. that bag is my _______________ ( father).8. edison was a great american ______________ ( invent).9. taking drugs takes many ____________ (problem) to their bodies.10. the accident ___________ (happen) yesterday morning.