1、Unit4Road safety一、语法：一） ，情态动词归纳1. 情态动词无人称和数无人称和数的变化；不能单独使用，必须与其后的动词原形动词原形构成谓语。2. 情态动词有四类：只做情态动词：must, can(could),may(might),ought to可做情态动词又可做实义动词：need, dare可做情态动词又可做助动词：shall(should),will(would)有情态动词特征：have(had) to, used to3must 和 have to 的区别1) 表示必须、必要。You must come in time.在回答引出的问句时，肯定回答用 must。如果是否
2、定的，不能用 mustnt（禁止，不准） ，而用 neednt, dont have to（不必）.- Must we hand in our exercise books today?- Yes, you must./No, you dont have to / you neednt.2) must 是说话人的主观主观看法， 而 have to 则强调客观客观需要。Must 只有一般现在时，have to 有更多的时态形式。二、词组：1. road safety 道路安全2. many busy roads 许多繁忙的道路3.in the city 在城市里4. cross the road
3、 safely 安全地过马路5. cross a busy road safely 安全地通过一条繁忙的马路6. look at the traffic lights 看交通灯7. wait for the green man 等待绿灯8. keep safe 保持安全9. wait on the pavement 在人行道上等待10. look out for cars and bikes 小心小汽车和自行车11. look left/right 看左边/右边12. cross the road with other people 可以和其他人一起过马路13. see you easily
4、很容易看见你14.some children 一些孩子们15. play on the road 在路上玩16. many cars and bikes 许多小汽车和自行车17. follow the rules 遵守规则18. stay safe on the road 在路上保持安全19. must look for a zebra crossing 必须寻找一条斑马线20. wait for the bus 等待公交车21. wait for me 等我22. find a zebra crossing 找到一条斑马线23. mustnt run quickly 绝不能快速地跑步24.
5、mustnt walk 绝不能行走25. the left side of the road 马路的左边26. drive on the right side of the road 马路的右边驾驶 27. except me 除了我28. except Macau 除了澳门29. go to see their aunt 去看他们的阿姨30. take the bus 乘车31. get on /offthe bus 上车/下车32. so many cars 如此多的车33. so much water 如此多的水34. go fast 快点去35. a red light 一个红灯36.
6、 look at the green light 看绿灯37. at the bus stop 在公交车站38. must stop 必须停下来39. go on 继续，继续前进40. go to see the doctor 去看医生41. youre sick 你生病了42. classroom rules 班级规则43. talk loudly 大声地谈论44. keep your desk clean 保持桌子干净45. listen to your teachers in class 在课堂上听老师讲三、句型：1.A: How can you cross the road safel
7、y? 你如何安全地过马路？B: I must look for a zebra crossing. 我必须寻找一条斑马线。2. A: What must you do to cross the road safely? 为了安全地过马路你必须做什么？B: I must look at the traffic lights. 我必须看交通灯。3.A; What must you not do on the road ? 在马路上你们绝不能做什么？B: We mustnt play or run on the road. 我们绝不能在路上玩或跑。4. You cant cross the road
8、 here. 你不能在这过马路。5. A: Can I watch TV? 我能看电视吗？B: No, you cant.Its late. You must go to bed.不，你不能。现在晚了。你必须去睡觉。6.A: Must I go to see the doctor? 我必须去看医生吗？B: Yes, you must. You cant go to school because you are sick.是的，你一定要去。你不能去学校因为你生病了。7.Look at the red light. It means we must stop.看红灯，它的意思是我们必须停。8.Some elephants are crossing the road. We must stop and wait.一些大象在过马路，我们必须停下来等。四，相关拓展。靠左行驶的国家有：Australia.New Zealand, Ireland, Singapore. India, IndonesiaJapan, Thailand, South Africa, Pakistan
