语法问题

kassandra

11)Perhaps even more important than the accuracy and realibility of a musical instrument ___.

A.that positioning it is correct
B.is positioned correctly
C.that its correct position
D.is that it be positioned correctly

这一题为什么答案是D而不是B呢
__________________________________________________________________________

29. (With the) Democrats’ adoption of (economic) radicalism in the 1890’s, (and the) Republicans emerged as the (majority party) in the United States.

为什么不是D(改成)major,而是C(删掉and)?

___________________________________________________________________________

35.Fainting (is caused) by stoppage of the blood supply to brain, due to (temporary) heart (fail) from shock, (weakness), or exhaustion.

为什么改C (加the), 而不改D 为failure?

william_T

1.此句肯定用倒装形式,状语提前主谓倒装,从B和D中判断.由于B中positioned correctly不能作主语,所以选D.that it (should) be positioned correctly是主语从句.从perhaps可看出虚拟语气.

2.(With the) Democrats’ adoption of (economic) radicalism in the 1890’s是一个介词短语,不是句子，所以不用and连接，and只连接并列或平行成分。原句可转换成Republicans emerged as the majority party in the LACE w:st="on">United States With the Democrats’adoption of economic radicalism in the 1890’s.这里的majority party是一个名词性词组,还如majority principle(多数原则)LACE>

LACE w:st="on">3.due to后只能接名词性短语,所以fail要改成failure。shock, weakness, or exhaustion是三个并列的名词，正确。LACE>