1.B 从百度词典中可以查到这个例子“a health awareness campaign to promote a healthy lifestyle”(为推广健康生活方式而进行的增强健康意识活动),从这个例子中可以推断出,campaign是可数名词,a nationwide campaign意思是“一场全国范围的战役”,而lifestyle和campaign一样。
2.D 是固定句型的用法:think it possible (for sb) to do sth
think it impossible (for sb) to do sth
think it necessary (for sb) to do sth
think it dangerous (for sb) to do sth
think it a good idea (for sb) to do sth
等等。
1 A a nationwide campaign 一场全国性的运动; the low carbon lifestyle.低碳生活
2 D it 作形式宾语,代替真正宾语 to work out 。。。前置
第一个选d 第二个选that 我不是专业的 感觉 希望楼主能得到正确答案