50. Our English teacher often asks us to have a 　▲　 　(discuss) in groups of four.

C) 根据对话内容，从下面方框中选择适当的单词或短语填空，使对话内容完整正确，并将答案填写在答题卡标号为51~55的相应位置上。

A: Have you heard of a big fire on May Day?

B: Not yet. When and where did the fire happen?

A: It happened on May 1st in Shanghai.

B: Did the firemen 　51　 　the fire soon?

A: Yes. The firemen reached the burning building 　52　 　six minutes.

B: Was anybody hurt in the fire?

A: Two firemen 　53　 　in the fire.

B: I am sorry to hear that.

A: These two firemen are very young. Both of them are 　54　 .

B: I am very sad. They are 　55　 　several years older than us.

A: I have the same feeling. Fire is really terrible. Everyone should be careful with it.

49. If you want to eat more 　▲　 　(health), you should eat less meat and more vegetables.

48. —I don’t want to take the plane there. I’m afraid of flying.

—In fact, the plane is 　▲　 　(safe) among different forms of transport.

47. The government has built Qiqiaoweng Wetland Park 　▲　 　(protect) the wetlands nearby.

46. —I’m used to 　▲　 　(stay) up late till midnight.

—But you shouldn’t. Teenagers need at least 8 hours of sleep a day.

45. —The visitors’ cars can be seen on both sides of the roads.

—Can’t they see the traffic 　▲　 　(标志) “No Parking” here?

B) 根据句子意思，用括号中所给单词的适当形式填空，并将答案填写在答题卡标号为46~50的相应位置上。

44. —Shall we go to Gulin Park? It opens to the public for 　▲　 　(免费的) now .

—Good idea. We can have a picnic there.

43. What a pity! You’ve 　▲　 　(决定) to give up such a good chance!　

42. Shirley Temple, an American actress, put her 　▲　 　(努力) into acting at a very young age.