
["化学反应的焓变与热化学方程式","盖斯定律及反应热的计算","原电池的工作原理","化学能转化为电能的应用","电解池的工作原理","金属的腐蚀与防护"]

["生物种类多样性","生态系统的多样性","基因的多样性","保护生物多样性的意义"]

["体育比赛中的淘汰制与场次计算","单循环赛场次的排列组合","用数学方法分析比赛规则"]

["小数加减法的计算方法","小数加减混合运算","小数加减法的简算(运算定律)","小数加减法问题解决"]

["谈论城市与家乡的变化","词汇:变化与生活发展相关表达","现在完成时的用法","for与since引导的时间状语","比较过去与现在的生活状况"]

["购物场所与商品词汇","购物用语 How much is it?","数字与价格的表达","购物情景对话 I want..."]

["宇宙的组成与天体系统","太阳系的结构与行星运动","物质由分子、原子构成","微观粒子的尺度与纳米科技","原子结构与原子核的组成"]

["面对挫折的积极应对方法","通过体育锻炼提升自信的方法","认识逆境与挫折的普遍性","自信心的含义与作用"]

["生物对环境的适应性","生物之间的食物关系与食物链","栖息地被破坏的影响与保护","生物栖息地的概念与组成"]

["观察身边的动物和植物","动物和植物的基本特征","动物和植物的相同与不同","爱护动植物的方法"]

["耕地资源与国家粮食安全","水资源与国家安全","矿产资源与国家安全","石油资源与能源安全","海洋资源与国家安全"]

["日常问候语","there be句型基本用法","方位介词","学校场所词汇","be going to表示计划"]