题目

Last week, I watched a movie. I noticed an actress who has very good eyesight 【小题1】 (play) the part of a blind lady. She played it so well that if you saw her 【小题2】 the first time, you would think that she was blind. It seemed that this actress 【小题3】 (spend) her time putting a little more effort into her career so that she could play the part that the 【小题4】actresses could not.Have you ever seen people digging a well before? They don’t just stop【小题5】 they see a little drop of water. They put in a little more effort to ensure that they get plenty of wate雨后的小树林是一个生机勃勃的世界,树木花草利用根系、伸展茎叶为生存争夺着水分、养料、阳光和空间。蝗虫、蟋蟀贪婪地啃食着嫩叶,蝉在树梢处高声“鸣唱”,鸟儿叽叽喳喳间啄取着食物……（1）阳光、养料、水分等都能影响树林中生物的生活,它们属于________因素。（2）作为一个完整的生态系统,上述资料中没有介绍的成分是__________,其作用是______________。（3）小树林与森林生态系统相比较,稳定性较差的是______,原因是___________