段落结构示例:Harmful Plastic Bags 主题句:Overusing plastic bags brings about environmental hazards. (核心词) 次主题句1: Nicknamed “white pollution” in China, discarded plastic bags litter our cities, spoiling the beauty of living surroundings. (视觉污染) 次主题句2: Besides, plastic bags are a waste of resources in that we use them once and throw them away. (浪费) 次主题句3: Finally, most plastic bags may hang around for decades, refusing to decompose. As a result, rivers are choked, drains are blocked and soil is poisoned as well. Kill wildlife.(潜在危害)4. 适当使用besides、 first、 as a result等连词、副词,突出上下文连贯性。5. 适当使用设问句、倒装句、强调句、被动句、非谓语结构,突出句型多样性。6. 尽量多用go over、 for the time being 等动词词组与固定搭配,行文更显地道。7. 避免反复使用important、good、useful等词,否则词汇贫乏的弱点暴露无遗。8. 有意识地用点深奥词语,显得你挺有水平,但没有把握不要乱用,以免弄巧成拙。9. 注意字迹清晰、卷面整洁。你的作文会被扫描进电脑,阅卷老师在电脑上阅卷,眼睛十分辛苦,千万不要再以草书、小楷、墨团影响老师的心情!