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ould we do to avoid accidents? Let’s learn some traffic signs. Red means _________. Yellow means “wait”. Green means ________. stop go Traffic lights 1b Work alone Please help Michael and Kangkang fill in the blanks and draw the traffic signs. There is a crossing ahead. It warns us to be more ______. careful Crossing Language Points warn 警告 。告誡 。預(yù)先通知 warn sb. to do sth. 警告 /提醒某人做某事 warn sb. not to do sth. 警告 /提醒某人別做某事 eg: .It _______ us ____ ________ more careful. .The teacher ______ the boy ______ ______ talk again. .The doctor ______ ______ ______ _______more water. warns to be warned not to warns us to drink Don’t _________ here. park No parking It’s dangerous. ? You can’t turn left here. No left turn ? Go straight ahead Go along the road, please. ? If we want to be safe, we must learn more about traffic rules. If yo