题目

用图13(甲)的实验装置探究烧杯内的某种物质熔化时温度的变化规律．若烧杯内的物质在相同时间内吸收的热量相同，根据实验数据描出加热过程中杯内物质的温度随时间变化图象如图13(乙)所示．请你解答下列问题：   （1）在图乙的t2时刻，物质是_______态(选填“固”、“液”或“固液共存”)；   （2）杯内物质t3时刻的内能_______t2时刻的内能(选填“大于”、“小于”或“等于”)；        这是通过________的方式来改变内能的；   （3）分析图13(根据下列句子及所给汉字注释或首字母提示，在句子后边的横线上，写出空缺处各单词的正确形式。（每空只写一词）小题1:As parents, you should       （教育）your children to be polite to others. 小题2:She ______（遭受）from loneliness when studying abroad.   小题3:My grandpa is ______（喜欢）of fishing  in the river 小题4:The flood did a lot of       （损害）to the crops.小题5:He asked his wife’s       （观点，意见）on every important decision.小题6:Many top leaders are       （担心，关心）about the shortage of water. 小题7:It takes at least a week to       （恢复，痊愈）from the HINI flu.小题8:He       （承认）making that terrible mistake.小题9:I am       （决心）to do better than Mike and I am sure I will.小题10:Few birds managed to       （幸存，活过）the cold winter.