精选优质文档-倾情为你奉上托福阅读第二课4. reference 指代题文章中指示词所指的对象,既可以是单独的名词,也可以是句子、文章等。难度不大,所以一不要丢分,二要节约时间基本题型构成:The word xxx in the passage refers to .The phrase xxx in the passage refers to .Case exampleRead the passage and answer the questions.Photosynthesis is the process by which plants and bacteria produce the sustenance they need in order to live. This complex phenomenon involves the conversion of light energy derived from the sun into chemical energy. When light energy acts