Unit 4 重点词汇、句型、语法知识
Story time
1. Road safety 道路安全，马路安全
2. There are many busy roads in the city. 在城市里有许多繁忙的马路。 many busy roads 许多繁忙的马路 in the city在城市里 3. How can you cross the road safely? 你怎样安全过马路？ cross the road safely 安全地过马路
4. You must look for a zebra crossing. 你必须找一条斑马线。 look for a zebra crossing 寻找一条斑马线
5.You must look at the traffic lights and wait for the green man. 你必须看交通灯,并且等待绿灯。 look at the traffic lights 看交通灯 wait for the green man 等待绿灯 wait for the bus 等待公交车 wait for me 等我
6.Can you see the red man? 你看见红灯了吗？ see the red man 看见红灯
7.You mustn’t cross the road now. 现在你禁止过马路。cross the road 过马路 8.You can cross the road now.你现在可以过马路了。 9. find a zebra crossing near you 在你附近找到斑马线
10. To keep safe, you can wait on the pavement and look out for cars and bikes. 为保证安全，你可以在人行道上等，并且当心小汽车和自行车。 句首用to表目的，意为“为了??”
keep safe = stay safe 保持安全wait on the pavement 在人行道上等待 look out for cars and bikes 当心小汽车和自行车 look out for 当心，当心
11. You must first look left, then right and then left again. 你必须先看左边，然后看右边，再看左边。
look left 向左看 look right 向右看 look left and right 左右看看
12. You can also cross the road with other people.你也可以和其他人一起过马路。 cross the road with other people和其他人一起过马路 13. see you easily很容易看见你
14.some children 一些孩子们a child 一个孩子
15. run or play football on the road 在马路上奔跑或踢足球
16.You must not play on the road because there are many cars and bikes. 你禁止在马路上玩耍，因为有很多小汽车和自行车。
play on the road 在路上玩 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 on the road 在马路 19.What must you do to cross the road safely? 你必须做什么来安全过马路？ 20.What must you not do? 你禁止做什么？
Grammar time (语法部分) 情态动词： 1、情态动词没有人称和数的变化，后面跟动词原形，它们的否定式后面同样跟动词原形。本单元重点学习情态动词can和must以及can’t 和mustn’t。
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