题目

Look and write. (根据图片选择合适的单词填空。)do homework watch TV English play read books Sunday Saturday1. I often _____ after school. 2. — What do you have on Tuesdays? — We have ________ on Tuesdays. 3. I often ____ football on Saturdays. 4. — What do you do on Sundays?— I _________ and _________. 5. It’s _____ today. Tomorrow is ______. 答案：【答案】1.read books 2.English 3.play 4.do homework watch TV 5.Saturday Sunday 【解析】略当氢氧化镁固体在水中达到溶解平衡 Mg(OH)2（s）Mg2+(aq)+2OH-(aq),为使固体的量减少，可加入少量的（ ）A. NH3 ·H2O B. NaOH C. MgSO4 D. NaHSO4