题目

阅读下面短文，掌握大意，然后从1-20各题所给的四个选项（A、B、C和D）中，选出最佳答案。 A young student was one day taking a walk with a professor, who was commonly 1the students’ friend. As they went 2 , they saw lying in the path a pair of old 3 , which they supposed to belong to a poor man who was employed in a 4 close by. The student turned to the professor, saying, “Let's play the man a5 ,We will hide his shoes, and 6ourselves behind those bushes, and wait to see his 7when he cannot find them.” “My young friend,” answered the professor, “we 下列措施中为了加快蒸发的是（ ）A．将衣服晾在向阳、通风处 B．酒精灯不用时盖上灯帽C．用保鲜袋装蔬菜放入冰箱 D．植树时剪除大量枝叶