
["认识地球是人类共同的家园","保护地球家园的行动","地球上生物与环境的相互关系","水资源及其保护","土壤与动植物的关系"]

["食物中的营养素及其作用","远离有毒物质与食品安全","化学元素与人体健康"]

["兴趣爱好词汇reading/dancing等","句型I like doing...表达爱好","句型What are your hobbies?","like后接动名词的用法"]

["集字临摹的含义与方法","集字作品中字的大小协调","集字临摹作品的创作练习"]

["上下前后左右的认识"]

["物理学研究的内容与生活联系","物理学习方法与科学探究环节","物理单位与测量的初步认识"]

["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..."]