读下面的文字,解答问题: 大家知道是无理数,而无理数是无限不循环小数,因此的小数部分我们不可能全部写出来。于是小明用-1来表示的小数部分,你同意小明的表示方法吗? 事实上,小明的表示方法是有道理的,因为在的整数部分是1,将这个数减去其整数部分,差就是小数部分. 又例如:∵<<,即2<<3, ∴的整数部分为2,小数部分为 (-2). 请解答: (1) 如果的小数部分为a,的整数部分为b,求a+b-的值. (2) 已知10+=2x+句型转换(每空一词)。1. Linda is going to Beijing with her parents next week. (对画线部分提问) is Linda going to Beijing next week?2. I'll be a teacher when I return to China.(改为同义句)I'll be a teacher when I to China.3. Ben is leaving for Tianjin this morning.(改为一般疑问句) Ben for Tianjin this morning?4. He is staying in Shanghai for a month.(对画线部分提问) is he staying in Shanghai?5. They had a good time in Hong Kong.(改为同义句)They _ in Hong Kong.