Without the upper stage, and minus most of the fuel it had at liftoff, it weighed only a fraction of its launch weight, so it didn’t take nearly as much fuel to slow down and reverse course to head back to Cape Canaveral.

 

 

主语 it

 

谓语 weighed

 

宾语 a fraction of its launch weight

 

【单词解析】

单词	音标	中文词意
minus	['maɪnəs]	prep. 减，减去adj. 减的；负的
fraction	frækʃən	n. 分数；部分；小部分；稍微
reverse	[rɪ'vɜːs]	n. 背面；相反；倒退vt. 颠倒

 

 

这句话是个并列句，第一个句子"Without the upper stage, and minus most of the fuel it had at liftoff, it weighed only a fraction of its launch weight"，"Without the upper stage, and minus most of the fuel"可看成是原因状语，注意"minus"在这也是介词词性，句子的主语"it"，谓语"weighed"，宾语"a fraction of its launch weight"，"so"作为连词引导一个句子表达一个结果，主语"it"，谓语"didn’t take"，宾语"as much fuel"，"to slow down"可看成目的状语，"and"起到并列连接目的状语中不定式动作的作用，也就是"slow down"和"reverse (course)"；当然，"slow down"后面就没有宾语了 ，而"reverse"后面带宾语，"to head back to Cape Canaveral"可算是"to reverse course"的目的状语；注意"to head back to Cape Canaveral"第一个"to"引导动词不定式，第二个"to"是介词，后接介词宾语（名词性成份）"Cape Canaveral"。

 

 

由于一级火箭已与二级火箭脱离, 并已消耗其升空时携带的大部分燃料, 其重量仅为发射时的一小部分,因此减缓速度、调头返回卡纳维拉尔角并不需要太多燃料。

 

 

见语法分析