Topic3 Which is the way to the post office?Section CLets chantv Stop, look, and listen,v Before you cross the street,v Use your eyes, use your ears,v Before you use your feet.v do( 动词原型）+ 其它v Dont +do( 动词原型）+ 其它v 祈使句表示请求，命令，建议等，句子通常不带主语，谓语动词用原形，朗读时用降调。v 祈使句有肯定，否定之分。肯定形式一般以动词原形开头，其否定形式是在谓语动词前加do not 或 dont 。24 people get hurt and 10 lose their lives in this traffic accident.Then what should we do to keep safe when we walk near the roads?First, we must obey the traffic rules.Second, before we cros
