56.  We are safe from cars_________.

      A. if we play in the street               B. if we play on the road

C. if we play in the park         

57.  It’s __________ to take any pills you find in the cupboard.

      A. safe              B. dangerous           C. allowed      

58.  We_________ play games under a dangerous building.

      A. should            B. shouldn’t            C. can

59.  You have to _________when you go out by boat.

      A .wear a life Jacket    B. eat much food       C wear a coat

60.  We should________ before crossing the  road.

     A. look right           B. look left           C. look left ant right

【参考答案】第二节：理解选择（每小题2分，满分10分）  55-60 CBBAC