What do students do in a science lab.
They do experiments there.
It means there is danger. We mustn't swim there.
Describe at least 2 signs in this picture. ( Use proper phrases to talk about rules. )
Don't learn!
No littering
Mind the gap!
Wait at the yellow line!
Is it right for students to go to the science lab in open-toed shoes ?
No. They must wear close-toed shoes.
A pair of black and white flags.
What does this sign mean and where can we find it?
It means we must give our seat to anyone in need and we can find the sign on the underground.
Tell us at least 3 rules in a science lab.
( Don't look at your textbooks)
Don't wear open-toed shoes in the lab.
Never leave rubbish on the floor.
Always wear safety gloves when working in the lab.
No food or drinks in the lab.
Always throw broken glass into the broken glass container.
What does it mean when you see a purple flag on the beach?
It means there is danger because of the dangerous marine life (海洋生物), like sharks and jellyfish.
Q: What rule did Bailing break?
Yiming saw no cars and dashed across the street. “Come on!” he called to Bailing.
Honk! A taxi screeched to a stop. The driver glared. “Use the crosswalk! You could’ve been hit!”
Bailing’s face turned red as she hurried back to the sidewalk. Lin Dong shook his head. “That’s why jaywalking is illegal.”
Luyao pointed to the pedestrian light. “See? It’s green now. We could’ve just waited.”
Yiming sighed. “Okay, okay. I get it.”
As they crossed safely, Bailing muttered, “Next time, I’m waiting.”
Cross the road when light is green.
No jaywalking!