题目内容：

初中英语例句问题
转换句子
例:to learn a foreign lauguage is not easy
变it is not easy to learn a foreign language.
1,to do farm work is not easy
2,to be a scientist is difficult
3,to write a business letter is not easy
4,to find enough time to work is difficult
5,to learn english is very important
最好解析一下

优质解答

1,to do farm work is not easy
变It is not easy to do farm work .
2,to be a scientist is difficult
变Iit is difficult to be a scientist .
3,to write a business letter is not easy
变It is not easy to write a business letter .
4,to find enough time to work is difficult
变It is difficult to find enough time to work .
5,to learn english is very important
变It is very important to learn English .
用指示代词It代替To不定式那一部分句子成分,避免头重脚轻