(3) A hinge joint is ------- permits the forward and backward movement of a door。
(A) the
(B) what
(C) those
(D) whose (88.10)
[答案] B what = the thing that…
(4) Essentially, a theory is an abstract. Symbolic representation of ------- reality。
(A) what it is conceived
(B) that is conceived
(C) what is conceived to be
(D) that is being conceived of (89.5)
[答案] C what = the thing that (is conceived to be…) 。答案(A)中的代词it是多余的,因为what本身即已包含了先行词(the thing ) 和关系代词(that) 。答案(B)中的关系代词that引导的从句不可以置于介词的后面。
(5) Most of the food what elephants eat is brought to their mouths by their trunks. (93.10
[答案] B what应改为that。此句已含有先行词food,不能再用关系代词what。
5. 主句和从句
解题要点 主语从句是TOEEL常考而中国考生又较陌生英文文法结构。有关主语从句的命题几乎全部集中在structure (1-15题)中。主语从句的特点是读起来有种头重脚轻的感觉,而且有两个谓语动词。连词That 引导的主语从句应特别留意。因为That 在句中没有任何意义,它只具有引导出主语从句的功能,因而很容易被忽略。
全真例题分析
(1) ------- xenon could not from chemical compounds was once believed by scientists。
(A) For
(B) It was
(C) That
(D) While (91.1)
[答案] C That引导的主语从句。其中第一个谓语动词could from 是从句的谓语,第二个系动was是主句的谓语。
(2) ------- to space travelers is high acceleration of deceleration forces。
(A) Danger can be
(B) They can be dangerous
(C) What can be dangerous
(D) While danger (93.1)
[答案] C what引导的主语从句。What既是从句的连词,又是从句的主语。
(3) ------- has been a topic of continual geological research。
(A) Did the continents originate
(B) How did the continents originate
(C) Have the continents originated
(D) How the continents originated (91.1)
[答案] D How 引导的主语从句。
(4) ------- progress helps to relieve scarcities is a fact accepted by economists。
(A) Technological
(B) That technological
(C)Although technological
(D)There is technological