第二节：语法填空：（共10小题；每小题1.5分，满分15分）
仔细阅读下面的短文，短文中有10个空格。请按照每小题括号内的具体要求完成语法填空和词形变化。
Among all the fast growing science and technology, the research of human genes, __31_ biological engineering as people call it, is drawing more and more attention now. Sometimes it is a hot topic __32__ (discuss) by people.
The greatest thing that gene technology can do is to cure serious diseases that doctors at present can almost do nothing with, such as cancer and heart disease. Every year, millions of people are murdered by these two __33__ (kill). And to date, doctors have not found __34_ effective way to cure them. But if the gene technology __35__ (apply) , not only these two diseases can be cured completely, __36__ (bring)  happiness and more living days to the patients, but also the great amount of money people spent on curing their diseases can be saved, so __37__ benefits the economy as well. In addition, human life span(寿命) can be prolonged.
Gene technology can help people to give birth to more healthy and clever children. Some families, with the English imperial(皇室) family being a good example, have hereditary diseases. This means their children will for sure have the family disease, __38__ is a great trouble for these families. In the past, doctors could do nothing about hereditary diseases, __39__ gene technology can solve this problem __40__ (perfect). The scientist just needs to find the wrong gene and correct it, and a healthy child will be born.