托福考试辅导：语法讲解（25）

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考点三 连接从句或不定式
; E2 c! c1 [; Z$ `' U% f0 Q- K介词之后还可以接宾语从句或不定式短语，但要借助于
连接代词  (如：what , which, whom)
( {5 X0 `# c" _3 }8 y或连接副词  (如：how, when，where)
例句：         I knew nothing about how he got the green card.
She's pretty hesitant about which one to choose.
例题：
(1)
. i% k# m. c3 {- P. A: yThe Cubists were concerned with how----a given subject from different points of view simultaneously.
(A) represented
(B) do they represent
3 v9 s2 {) Q, d5 z3 T(C) to represent
1 q1 T3 l, c! b3 V# R(D) representing
答案：C
) i. h( ~( |- H解释：介词with后面的宾语不完整, C 是不定式短语作宾语. A D都不足以和how构成宾语从句;  B不应用疑问句语序, 若去掉do则是正确的
" B1 W5 a0 M4 I2 `# ^8 L(2)
The scholarly interest in perception stems largely from questions about the sources and validity of what ----.
(A) it is known as human knowledge
(B) is known as human knowledge
(C) known human knowledge
(D) is human knowledge known
答案：B
, O+ }& ^4 h6 y$ n* K# ?) t解释：介词of的宾语残缺, B 构成宾语从句, 包含短语be known as；A多主语it; C 无法与what契合; D 语序错误
注意：介词后面不能够接 that 所引导的从句，除非in that连起来作为特殊的状语从句引导词，表原因
(3) (Exer1_21_31)
/ D9 P7 \! d' LSoprano Julia Migenes-Johnson believes in that her Latin American background   helped her interpret the role of the Spanish character Carmen in a 1984 opera film.
应改为：believes
7 Z4 @3 a0 q) Z1 S解释：介词后面一般不能够接that 引导的从句。除非in that连起来
(4)
Hovercraft, or air-cushion vehicles, are unusual ---- travel over land and water on a layer of air .
! s6 p& T# `: ] (A) they
(B) in they
(C) that they
(D) in that they
5 l: @5 h# |! f' B+ j8 n答案：D
& t6 F0 ~% R0 }% q+ z& Y7 J; Z解释：空格前是句子的主谓语，空格后是谓语结构，空格处需要从句引导词及从句主语，只有D符合题意，in that是特殊的状语从句引导词，表原因
词汇：hovercraft: 水翼船,  cushion: 垫子