Unit 4　Astronomy: the science of the starsWriting处理问题类作文
【文体感知】1. 文体特点(1)处理问题类作文对一些问题提出处理提议、方法和方法。(2)理清写作主题, 处理问题方法应该是文章重点。语言要简明扼要, 目标明确、含有合理性和说服力; 语气要委婉。(3)明确文章结构: 开篇, 提出问题; 主体, 分析和处理问题; 总结, 对提出问题处理方法进行简明评价。
2. 亮点句式(1)提出问题&分析原因①In fact, drinking in space is really a big problem(that we have to face). ②One of the difficulties/challenges is how to prevent air pollution. ③It is difficult/hard/tough to stop students from taking mobile phones to classrooms.