2017考研英语长难句分析每日一句(798) Once you have a first draft you can delete material that is unrelated to your thesis andadd material necessary to illustrate your points and make your paper convincing.
【分析】复合句。主句主干为 you can delete material and make your paper convincing。句首的once 引导条件状语从句;that 引导的定语从句修饰其前的 material;形容词短语 necessary to illustrateyour points 做后置定语修饰第二个 material。