题目

语法填空（共10小题；每小题1.5分，满分15分） 阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填人一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号的相应位置上。 In this unlikely place, researchers are putting the seeds from flowering plants and trees in a sleeplike state. Many years from now, other workers will wake the sleeping seeds up to plant them      1  they are most needed. These seeds are  2  the legendary Rip Van Winkle, who fell asleep under a tree and 求下列定积分． ．