16. Sea turtles date back 100 million year and are the only ancient sea reptiles to survive the present Day. . V, ~! t% j' a* b8 r& q
4 Y- r- u# P+ X& w0 X+ n: m答案：A
* L7 D" {& c, j6 y& {1 X+ J- ?测试点：数的一致.
: K+ t# |) c) E9 F* _ R分析：有阿拉伯数字出现时，应特别注意其后紧接的名词是否应为复数．这里year应为复数。 2 g- O$ c3 Y3 r: M; t# a
& x. P+ f' r# p" G$ A
17. At a first, the scientific method may appear to be a narrow and restrictive way of gaining understanding.
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3 J9 x( {4 |) c+ c. k. w' Y答案：A 2 Z. h4 |, x2 D. b: s: L: I) H
测试点：习语。
; R! D, I# ?% l* r" O2 c6 L分析：At first是固定短语，a多余. 9 h/ I$ A/ q0 o x
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18. Since prehistoric times, artists have portrayed subjects that representative their culture.
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答案：D
( [% C# v- }" O6 t T" E5 F测试点：词性。 # u2 |; ]: H: L+ V0 I; {% v3 l
分析：that是从句主语，后面接谓语动词。此处应当用动词represent而不用形容词representative. : D9 q2 H. f# m6 }. b% ~) [% e
5 S7 r& Z4 M4 A' |# t: n1 f2 }7 g
19. How many people realize that agriculture is a source of raw materials for clothing and to shelter? 2 R* T0 a( o( e
答案：D
1 g4 o; G7 U. R测试点：词性／并列结构. 1 p3 b0 d: ~0 \! p/ K* H5 m
分析：看到…and…，应想到它前后两部分同词性、同形式．此处要用名词shelter与clothing并列.
1 W3 F- h+ e3 E' [- x0 M
, |( N9 n! M4 C4 U20. Mammals lose body heat to them environment in cold weather more quickly than in hot weather. ' y% U6 A. P9 K
& ~( i0 r0 I2 f1 s% |/ A9 Y
答案：B + ]* e% ^8 v0 Q, B! g
测试点：代词.
1 v) N# k; b( t6 n5 |2 w. d# c# G分析：environment为名词，前面要用形容词性的代词their作定语，不能用them. |
发表于 2012-8-14 22:34:35
