英语六级高分必备500关键句(MP3+文本) 第122期:阅读理解(19)
日期:2015-10-14 09:28

(单词翻译:单击)

第122句:

Melina Kunar of the University of Warwick, and Todd Horowitz of Harvard Medical School ran a seriets of experimenis in which two groups of volunteers had to pay attention and retipond to a series of moving tasks on a computer screen that were reckoned equivalent in difficulty to driving.

华威大学的梅利娜·库娜和哈佛医学院的托德·霍罗威茨做了一系列试验,他们让两组志愿者注意电脑屏幕上的一系列移动任务并作出反应,这些任务被认为与开车的难度相当。

六级词汇讲解:
本句的主干是Melina Kunar...and Todd Horowitz...ran...experiments...。其中,in which two groups ofvolunteers...to driving属于“介词+关系代词”引导的定语从句,修饰先行词experiments,该从句中又包含一个that引导的定语从句,修饰先行词moving tasks。
reckon意为“认为”,此外它还含有“考虑;估计”之意。如:
I have to reckon the cost before I book the tickets.
我得先算一下费用,然后再订票。
equivalent意为“相等的;相当的”。如:
This qualification is equivalent to a degree.
这个资格证书相当于学位证。

六级考点归纳:
由“介词+关系代词”引出的定语从句须注意以下几个问题:米关系代词which和whom在定语从句中作介词的宾语时,介词可放在关系代词之前,也可放在该定语从句中的动词之后(此时,which可用that代替,whom可用who或that代替。在口语和非正式文体中,关系代词可以省略)。如:
I'm looking for afriend with whom I can chat on msn.
我在寻找一个能和我用msn聊天的朋友。
此句可以改为:I'm looking for afriend( who/whom/that)I can chat on msn with.

关系代词that在定语从句中作介词的宾语时,介词只能放在从句中de相关动词之后,不可放在that前面,但that可省略。如:
The position( that) she applied for is very attractive.
她申请的那个职位很有吸引力。(√)
The position for that she applied is very attractive.(x)在由“代词+ of+关系代词”结构引导的定语从句中,先行词指“人”时用whom,指“物”时用whicho如:
There are 50 students in my class,most ofwhom are girls.
我们班上有50个学生,其中大多数是女孩。
He has a large coUection ofbooks,many ofwhich are written in English.
他藏书很多,大部分是英文书。

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重点单词
  • equivalentadj. 等价的,相等的 n. 相等物
  • qualificationn. 资格,条件,限制
  • attractiveadj. 有吸引力的,引起注意的
  • screenn. 屏,幕,银幕,屏风 v. 放映,选拔,掩蔽,遮蔽