E Choose and complete（选择合适的单词，完成句子）
safe easy must safely can’t easily safety can mustn’t
1 Tim knows how to cross the street __________.
2 You __________ play on the road. It’s not __________.
3 Miss Li is talking about road __________.
4 Jim can draw a tiger. It is __________ for him.
5 Mrs Brown can make a cake __________.
6 —I want to go to Zhongshan Park. __________ I take this bus?
—No, you __________. This bus goes to Fuxing Park.
7 —__________ I finish my homework before dinner?
—No. You can finish it after dinner.

1 safely 2 mustn’t, safe 3 safety 4 easy 5 easily 6 Can, can’t 7 Must

F Choose and complete（选择合适的词组，完成歌谣）

a in the park b find the way c in our life ( 生活 ) d on the road e in our school
Signs
We need signs __________.
We can see signs __________.
When we can’t __________,
They can tell us where to go and how to go.
So signs are like ( 像…… ) policemen.
We can see signs __________.
They can tell us what to do and what not to do.
So signs are like teachers.
We can see signs __________.
They can tell us what is safe and what is not safe.
So signs are like park keepers.

c d b e a

G Look, judge and complete（看图，判断行为对错，完成对话）
1 A: What’s Mike doing?
B: ______________________________
A: What mustn’t he do?
B: ______________________________


2 A: What’s Helen doing?
B: ______________________________
A: Is it safe?
B: ______________________________


3 A: What’s Liu Tao doing?
B: ______________________________
A: What should he do?
B: ______________________________

1 He’s riding a bike on the road. He mustn’t ride on the road. 2 She’s reading on the road/when she is walking. No, it isn’t. 3 He’s crossing the road when there is a red man. He should stop and wait for the green man.