老杜托福100句（十三）.pdf

老杜托福100 句（十三） 老杜托福100 句 （十三） 句子1 His machinery lifted the grain to the top of the mill, cleaned it as it fell into containers known as hoppers, ground the grain into flour, and then conveyed the flour back to the top of the mill to allow it to cool as it descended into barrels. 【难点解析】 本句的难点在于理解句子中的几个动词（词组），比如lifted……to……，cleaned ，grain…… into……，convey……back……。另外还需要注意句中多次出现的it 分别指代句中哪些名词。 【参考翻译】 他的机器将谷物提起移至磨粉机顶端，在谷物落入被称作储料器的容器时清洁谷物，把谷物 研磨成粉末，然后在粉末降入到桶中后将粉末传送回顶端使其冷却。 【成分划分】 主句 His machinery [主语] lifted [谓语] the grain [宾语] to the top of the mill, [状语] cleaned [谓语] it, [宾语] ground [谓语] the grain [宾语] into flour [状语] and then [连接 词] conveyed [谓语] the flour [宾语] back to the top of the mill to allow it to cool. [状 语] 状语从句 老杜托福100 句（十三） It [主语] fell [谓语] into containers [状语] known as hoppers. [定语] 状语从句 It [主语] descended [谓语] into barrels. [状语] 句子2 The hypothesis that begging calls have evolved properties that reduce their potential for attracting predators yields a prediction: baby birds of species that experience high rates of nest predation should produce softer begging signals of higher frequency than nestlings of other species less often victimized by nest predators. 【难点解析】 本句的难点在于句子层次比较复杂，先是主语由一个同位语从句修饰，而同位语从句中还嵌 套了一个定语从句，使得整个句子的主语和谓语被分隔开。我们面对这样的句子，需要先跳 过同位语（从句）、定语（从句）等修饰性成分，找到句子的主语和谓语，然后再理解之前 的修饰性成分。翻译的时候可以先理解各个子句含义，然后再用一句话将整个意思翻译一遍。 【参考翻译】 一种假设认为乞食叫声逐渐迚化形成某些特性，可以减小吸引捕食者可能性，这假设产生一 种预测：与那些较少被捕食者猎杀的种类的雏鸟相比，经常面临捕食者威胁的种类的雏鸟会 发出声音更轻、频率更高的乞食声。 老杜托福100 句（十三） 【成分划分】 同位语从句 Baby birds of species [主语] should produce [谓语] softer begging signals [宾语] of higher frequency [定语] than nestlings of other species [状语] less often victimized by ne