题目

下列物体内能的增加，是通过做功而实现的是 A．阳光把石桌晒热    B．用火烧水，水变热 C．烤红薯，红薯变热  D．据木板时，锯片变热 答案：DⅡ.用方框中所给单词的适当形式填空before,hair,remember,more,read1. I   English for half an hour every morning.2. My sister has long and big eyes.3. We need apples to make the salad.4. - -Can I go out this evening,Mom?—Yes,you can. But you must come back       nine o’clock.5. —Do you when Lisa's birthday is?—Yes,it's on October 22nd.