外研版教科书一年级起点九年级初三英语下册Language in use. (4).ppt

 During the vacation, he would visit me every other day. The wound would not heal.  It would be about ten o’clock when she left home. ③would表示过去反复发生的动作或某种倾向。would表示过去习惯时比used to 正式，且没有“现已无此习惯”的含义。如： ④表示估计和猜想。如： PPT课件 * I should help her because she is in trouble. You ought to take care of the baby. You should / ought to go to class right away. Should I open the window? ①should, ought to表示“应该”，ought to表示义务或责任，比should语气重。 ②表示劝告、建议和命令。should, ought to可通用，但在疑问句中常用should。 PPT课件 * ③表示推测  should/ ought to 客观推测 must 主观推测 He must be home by now. (断定他已到家) He ought to/should be home by now. (不太肯定) This is where the oil must be. (直爽) This is where the oil ought to/should be. (含蓄) PPT课件 * 1. 你必须马上回家。 You must go home now. 2. 他一定吃过什么东西了。 He must have eaten something. 3. 吃饭之前不能吃零食。 You mustn’t eat snacks before meals. PPT课件 * 4. 我可以问你的名字吗？ May I ask your name? 5. 你能用英语说吗？ Can you speak in English? 6. 我们应该准时去上学。 We should go to school on time. 7. 你没有必要那么做。 You needn’t do that. PPT课件 * Match the signs with the rules and warning. a b c d e f pic 1 No smoking. 2 No eating or drinking. 3 Children crossing. 4 Danger! Be careful of falling rocks. 5 Children should be taken care of by parents. 6 Do not drink and drive. PPT课件 * Read the list of rules and write sentences using must, mustn’t, should or shouldn’t. Possible answers: You must check in at the main gate when you come to the centre. You should climb with someone/ wear the correct climbing shoes/ wear comfortable clothes. You mustn’t climb without a rope. You shouldn’t listen to personal music players while climbing. PPT课件 * Work in pairs. Explain why the rules in Activity 2 are important. — Why must you check in when you come to the centre? — Because they want to know who is there. 1 Why must you climb with someone? Because you can ask for help if you meet some problems. 2 Why must you wear comfort