历年托福考试语法真题全面解析53

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21. Jazz first flourished in New Orleans, Louisiana, and then spread at cities all across the country.
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答案：C
3 f5 g3 _& J/ g' ~" V" V3 b测试点：介词.
; }5 g8 P6 F  Q4 ~分析：cities前不用介词at，而用in.
  
! E, Q( l8 X. a6 o) [% V22. Flower have long been cultivated and bred for their beauty and their fragrance.  
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. d! r# o0 O0 T+ o, @7 T答案：A 测试点：主谓数的一致.
分析：动词是复数的have，推知主语应也是复数的．应为Flowers.
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7 U' w/ ?; L0 o7 c1 S23. When a spinning ball bounces, some of the energy contained in its rotation can transferred to its energy of forward motion.  
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答案：C 测试点：被动语态.
分析：can后接动词原形，不能接分词．(C)can transferred是错误形式．根据句意，应为被动语态can be transferred。
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24. One values product of a musk deer is musk, which comes from a gland near the male’s abdomen and is used in medicines and perfumes.
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! s  K$ L% \& \0 c- x4 E1 @. N答案：A
测试点；词性.
分析：(A)应用形容词valuable修饰主语名词product.
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25. The economy of Little Rock, Arkansas, is basis primarily on manufacturing, wholesale and retail trade, and government functions.
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" v3 B0 a" v: Y6 o6 z5 B答案：B
! P9 Z  W4 f$ ]/ [8 I测试点：习语.
分析：Be based on是固定的短语，不用名词形式basis.