题目

In the near future, we may be using our eyes to operate our smartphones and tablets, even when it comes to playing popular games like Fruit Ninja. NPR profiled the Gaze Group, which has been developing eye­controlled computer technology for nearly 20 years. But those devices have been primarily designed to aid those with disabilities, and are typically very expensive. “After a while, we figured out that probably the best way is to go for a mass­market approach，” says Gaze's Sune Alstrup Johansen.“Where everybody would have this available.” Johansen and some of his colleagues 17．下面是张星家第二季度每个月部分开支．月 份饮食类日用品类水电煤气类四月506元135元94元五月478元97元122元六月584元165元116元（1）张星家四月份一共开支多少元？（2）第二季度用于日用品类开支一共多少元？