如图所示，重为20N的容器放在水平桌面上．容器的底面积S=2×10^﹣2m²，高h=O.4m．当容器装满水时，容器对水平桌面的压强为4×10³Pa，（ρ_水=1.0×10³kg/m³）求：

（1）如图所示，水对容器底的压强多大？

（2）用一个弹簧测力计吊着一重为4N的物体，当物体全部浸没在该容器的水中时，弹簧测力计的示数为2.4N．该物体排开水的质量是多大？该物体的密度多大？

（3）容器中水受到的重力多大？

根据短文内容，选择正确答案。

    Mike had a nice blue cup which he liked best. It was a present from his aunt for his fifteenth birthday last year. He cleaned it once a day and took good care of it. His cat, Mimi, was very naughty(淘气的) and sometimes it could make some trouble(麻烦) for Mike.

    The day before yesterday, the cup was broken(打破) by his cat. He felt unhappy. Susan saw him and asked, "You look sad. What's the matter with you?"

    Mike said, "There is something wrong with my cup."

    Susan said, "Don't worry. I can repair it."

    Mike felt surprised and asked, "Repair? You can repair it? You?"

    "Yes. Believe me! Where is it?" Susan answered.

     "Here. My cup is broken. Are you sure you can repair it?" Mike took out his broken cup.

     "Ha……, I made a mistake(错误). I think your__1__ is broken," Susan said.

    Hearing what Susan said, Mike couldn't help laughing.

听下面一段较长对话，回答下列三个小题。