历年托福考试语法真题全面解析66

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6.Amplifiers such as those in computers and sound –reproducing systems are responsible for --- an erratic input signal.
1 w; F% q( h1 E0 V/ E8 N& [(A) strengthening
0 b: G' r- }2 O* |" _(B) being strengthened
(C) strengthen
1 k/ m4 y4 q0 T  ]# R+ @(D) to strengthen
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答案：A
测试点；介词宾语。
6 f+ S7 `, A4 D2 u! C分析：介词for后应接名词性成份。(A)strengthening是动名词，可作介词宾语。(B)是其被动形式，与句意不合；(C)(D)为动词形式.
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2 Z5 l1 K3 T' V* O# T7.--- John Aaron Lewis pioneered in the development of “third stream music,”a blend of jazz and classical music.
(A) A composer, who was
(B) He was a composer
) ^. R+ l$ i2 ?% z" c% m5 _0 j(C) As a composer
5 u- W7 u! j6 a  ^(D) When a composer he
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1 `/ T) t+ z$ b/ E5 l( j0 @: m, }2 H答案：C
测试点：状语.
* \' x% V) w- s1 p( C; r分析：空格后为一完整的句子，而主语是一人名，所缺通常是一个说明此人身份的短语，同位语或状语．故选(C)是介词短语，可作状语．(A)、(D)均含有从句成份，使句意不通；(B)是一单句，与空格后的部分无法衔接.
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% y' M6 r! g4 b! a8.In reorganizing the curriculum of Mt. Holyoke College in the late 1800’s Elizabeth Mead laid the foundation --- the modern college rests.
7 S0 o$ o! P! t6 S6 ^(A) is which
$ M8 `$ X! S, w6 c0 F" H(B) on which
! b) v: Q8 {# u6 u- k3 l(C) which is on
7 j) x% d$ @% o! {  p(D) on it
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答案：B
测试点：介语+which结构。
分析：名词foundation后为其定语从句，从句主、谓俱全，所缺为表示地点或范围、方面的状语应选择介词+which的结构，即(B).
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9.Research into the dynamics of storms is directed toward improving the ability to predict these events --- to minimize damage and avoid loss of life.
(A) and thus
" P+ w/ ^  {& J(B) so
(C) however
(D) because
7 |  p# v) G- s; U1 v- r0 a  
4 V3 _+ C0 d" W* Q6 b$ ]" N答案：A
8 B! \$ ~! L1 i/ g5 b测试点：连词并列结构.
  _( q5 f# U7 v9 [分析：名词ability后面有两个并列的不定式短语． predict和to minimize…，应当用连词and连接．thus是副词，意为“因此，从而”，and thus常常连用．(B)so是错误搭配，正确用法是so as to.
  
# ]. ^! v8 r1 W/ y2 t0 ?( K$ \3 d10. --- lived on the North Saskatchewan River long before the Hudson’s Bay Company built a fur trading post there.
(A) Cree people
(B) For Cree people
$ b4 x0 p3 b; Q/ o3 A% w, Y$ L6 v  ?(C) It was Cree people
% v4 g' Q( Z. S. q% `% V(D) Where Cree people
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答案：A
0 _  J8 e0 o" [( Q2 [, }* k$ E测试点；主语。
7 n* T- p* t! R7 a* L分析：句子有谓语而无主语，应在答案中选择名词或名词词组。(A)是名词词组；可作主语．(B)多了介词；(C)是形式主语结构，与后文不符；D)为从句形式.