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3 Read,chooseand write. 补全单词并读一读，注意 ir 字母组合的发音，再根据图片选词填空。
答案
1. d_ _t: dirt
2. b_ _thday: birthday
3. b_ _d: bird
4. d_ _ty: dirty
5. th_ _ty: thirty
The bird is thirsty.
2. b_ _thday: birthday
3. b_ _d: bird
4. d_ _ty: dirty
5. th_ _ty: thirty
The bird is thirsty.
4 Look and write. 根据图片，写一写。
a.
We should at the red light.
b.
Children should sit in the seat in a car.
c.
I go to school .
d.
Children shouldn’t ride a under 12 years old.
a.
We should at the red light.
b.
Children should sit in the seat in a car.
c.
I go to school .
d.
Children shouldn’t ride a under 12 years old.
答案
a. stop; b. back; c. on foot; d. bike
解析
a. 图中红灯亮，女孩停下，应填“stop”。b. 图中孩子坐在汽车后座，应填“back”。c. 图中孩子步行上学，应填“on foot”。d. 图中禁止骑行标志，应填“bike”。
