题目

Open DayTuesday,October 23Morning: From 9: 15 a.m. to 11: 15 a. m.Evening: From 6 p. m. to 8 p. m.Come to visit us in the morning quickly. You and your children can see the school in operation(运转着). This is an international, all-encompassing school.You can also visit the school in the evening. Our teachers are very friendly.Then you can talk with subject teachers and a student guide(导游) will tell you everything about our school.Mr Smith will give his wonderful speech at 6: 15 p. m. and again at 7: 15 p. m. He will tell you the history of our school and introduce you about many after-乙醇等“绿色能源”的开发备受世界关注。利用玉米秸秆生产燃料酒精的大致流程为：（1）玉米秸秆经预处理后，应该选用________酶进行水解，使之转化为发酵所需的葡萄糖。（2）若从土壤中分离产生这种酶的微生物，所需要的培养基为________(按功能分)，酒精发酵的适宜温度为________。（3）从生物体提取出的酶首先要检测________，以便更好地将酶用于生产实践。在生产糖液的过程中，为了使酶能够被反复利用，可采用________技术。