There are many busy roads in the city. How can you cross them safely? 城市里有很多条繁忙的马路。你怎样才能安全地穿过它们? First, you must look for a zebra crossing. Then, you must look at the traffic lights and wait for the green man. 首先,你必须寻找斑马线。然后,你必须看交通灯,等待绿灯人像。 Can you see the red man? You mustn't cross the road now. 你能看见红灯人像吗?现在你禁止穿过马路。 Look! Here's the green man.You can cross the road now. 看!这是绿灯人像。现在你可以穿过马路。