大学英语四级模拟试题(6)

　　Part IV Short Answer Questions（15 minutes）
　　Directions：In this part there is a short passage with five questions or incomplete statements.Read the passage carefully.Then answer the questions or complete the statements in the fewest possible words（not exceeding 10 words）。
　　In the darkness of early morning many people waited.About ten miles away was an atom bomb that was set to go off.On a loudspeaker a voice was counting“……four，three，two，one，zero。
　　Zero—and nothing happened！Why didn't the bomb go off？Something had gone wrong.But no one knew what was the matter.
　　Now there was only one thing left to do.Some men must go and take the bomb apart.There was much danger in this work.If anything happened to make the bomb go off，it would be the end.
　　Three men were picked.It would be their task to go to the top of a five-hundred-foot tower. Up there in a little room was the atom for bomb. The men rode in cars to the tower.Then they got ready for the five-hundred-foot climb.They must go by ladder all the way.Each man carried a box of tools on his back.When they reached the top， they would be as high up as a forty-storey building.
　　As the men started the climb，they sawa rabbit hopping about.
　　“There is a lucky rabbit，if we make it，”said one of the men.
　　Up and up they climbed.Two hundred feet， three hundred feet，four hundred feet.Only one hundred feet left to go.How small the cars below looked—just like little toys！
　　At the top，the men stood at the door of the little room in which the bomb lay.With much care，the first man opened the door and went in. Everything looked all right；so the other two followed.
　　Carefully the men worked on the bomb.Now there was just one more step to go.They must pull the wires from the bomb.With a strong，even pull their work was finished.
　　Back on the ground the men again saw the rabbit.
　　“Yes，that is a very lucky rabbit，laughed one of the men.
　　“We were lucky too，said another.
　　Questions：
　　71.When was the atom bomb set to go off？
　　72.The tower was as high as .
　　73.How did the men get to the top of the tower？
　　74.Why were the men“lucky？
　　75.What is the story about？
　　Part V Writing（30 minutes）
　　Directions：For this part，you are allowed thirty minutes to write a composition on the topic：IMPORTANT WORDS.You should write at least 100 words and you should base your composition on the outline（given in Chinese）below：
　　1.有三个词对于英语学习者来说非常重要。第一个是“谢谢。
　　2.第二个重要的词是“请。
　　3.我们还须学会说“对不起。