16. Sea turtles date back 100 million year and are the only ancient sea reptiles to survive the present Day. 4 Q: \) O: T; K
9 m. W7 L- G4 i8 |7 C/ U, B
答案：A - r- y* h. r! Z% Z
测试点：数的一致.
) J+ v5 _7 b. O3 B- u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。 % u/ m# I* o; x( E
# C7 e+ Z ~/ S4 [: O: l
17. At a first, the scientific method may appear to be a narrow and restrictive way of gaining understanding.
% C v8 I% n4 k, \: ? " P2 D% f9 q1 X/ c+ t
答案：A
- b7 T; Q: W: G- T( k测试点：习语。 8 g4 d! g* O1 T) s' t+ Y
分析：At first是固定短语，a多余. + J d* ]" L, \+ N, R
) |. S1 {: k0 Z18. Since prehistoric times, artists have portrayed subjects that representative their culture.
! t Q a6 f4 D4 D3 F3 b! B$ i- V & I+ i* S, C% p
答案：D 5 N, Z9 h/ i) K& {
测试点：词性。 0 `- ^0 f: E" c2 O1 _
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. 4 x6 N+ }: U" A) w6 ]
* l; d8 c# N5 h( M3 M" ? @19. How many people realize that agriculture is a source of raw materials for clothing and to shelter? 5 H8 r" o: P5 P+ R5 n5 U# e3 E- `
答案：D
. y7 H& z- N9 T/ e/ @测试点：词性／并列结构.
2 w* s F# h \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. " R! ?9 p, J1 Y5 c! l- {! X
* f0 y& G) m; P- P n" r20. Mammals lose body heat to them environment in cold weather more quickly than in hot weather. - L% K0 u: Z% Y
$ L. W7 Z, b% @答案：B
; o1 L* _$ L, C( o测试点：代词. ! V% f9 F# a) b% B0 y
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
