One possibility of supplying the world with clean, renewable energy is energy harvesting from ocean waves, which has been propos

admin2019-09-17  30

问题 One possibility of supplying the world with clean, renewable energy is energy harvesting from ocean waves, which has been proposed as a means of offsetting a large portion of the world’s electrical energy demand.

选项 A、canceling
B、exploring
C、satisfying
D、tackling

答案C

解析    (1)句子结构。
   One possibility of supplying the world with clean,renewable energy(主句的主语)is(系动词)energy(主语补语)harvesting from ocean waves(补语的定语),which has been proposed as a means of offsetting a large portion of the world’s electrical energy demand(which引导的非限定性定语从句,修饰energy harvesting from ocean waves)。
   (2)选项词义。
   A.cancel v.取消,注销;抵消
   B.explore v.勘查,勘探;[医]探查(伤处等):研究
   C.satisfy v.符合,达到(要求、规定、标准等);履行
   D.tackle v.处理,解决;抢球;阻截
   句子大意为“为世界提供清洁、可再生能源的方法之一是海浪发电,人们认为它能够满足大部分电力能源需求”。题干中的offset意为“弥补”“补偿”,与选项中的satisfy词义最为接近,因此选项C正确;或者从satisfy demand这一常用搭配也可推断出C项为正确答案。
   【知识拓展】语法拓展:非限定性定语从句。
   非限定性定语从句起补充说明作用,它与主句往往用逗号隔开。非限定性定语从句的引导词通常是who,whom,whose和which等wh-词;关系代词which在非限制性定语从句中所指代和修饰的可以是主句中的名词、形容词、短语以及其他从句或整个主句,which在非限定性定语从句中可作主语、动词宾语、介词宾语或表语。
   关系代词which引导非限制性定语从句有四种情况:
   ①指代主句中的各类名词。
   e.g.These trees,which I planted three years ago,were cut by the enemy soldiers.
   这些树是我三年前栽的,现在被敌军砍了。
   ②指代主句中的形容词。
   e.g.She was very patient towards the children,which her husband seldom was.
   她对孩子们很耐心,她丈夫却很少这样。
   ③which指代主句中的某个从句。
   e.g.He said that he would love her forever, which was not true.
   他说他会爱她一辈子,这不是真的。
   ④which指代整个主句。
   e.g.He never has problems in his study, which is admired by his classmates.
   他学习上从来没出过问题,他的同学对此很是敬佩。
转载请注明原文地址:https://kaotiyun.com/show/AgwO777K
0

最新回复(0)