</p> 9.Which of the sentences below best express the essential information in the highlighted sentence in the passage? (Sentence Simplification Question)
1 O0 J6 P1 _* x& W0 M, n- p A.Because of their deformed shapes at high altitudes, trees are not likely to be seriously harmed by the strong winds typical of those altitudes.
: u0 ], G$ H# g# P( T" b B.As altitude increases, the velocity of winds increase, leading to a serious decrease in the number of trees found at high altitudes.! K" C3 T! h7 I$ m: B$ _
C.The deformed shapes of trees at high altitudes show that wind velocity, which increase with altitude, can cause serious hardship for trees.% }$ K N% i/ o! d+ M6 p
D.Increased wind velocity at high altitudes deforms the shapes of trees, and this may cause serious stress for trees.
4 o% F# d u. V3 T; o( B8 D 相关原句:Wind velocity also increases with altitude and may cause serious stress for trees, as is made evident by the deformed shapes at high altitudes.(Paragraph 4,highlighted sentence)0 u6 y6 s0 x) p" Z' z
本题解析:风速随着海拔升高而提升,并可能给树造成严重的压力,正如高海拔地区树木变形已经证明了这一点。也就是说树木变形说明了高速风对植物产生的严重压力(cause serious stress for trees),因此选择C。注意,D错误之处在于并不是变形给树造成压力,而是高速风给树造成了压力,变形只是压力的表现。2 z& L% r5 y: v; @
正确答案:C
+ m, E2 k! Q2 c 10.In paragraph 4, what is the author’s main purpose in the discussion of the dramatic cessation of tree growth at the upper timberline?4 l4 Y* t+ h" _4 \4 f3 |) u
(Rhetorical Purpose Question)来自www.Examw.com
9 [' Q% R1 F p+ M4 t; U A.To argue that none of several environment factors that are believed to contribute to that phenomenon do in fact play a role in causing it.; N1 x0 l& r% J
B.To argue in support of one particular explanation of that phenomenon against several competing explanations.' I H% v( q+ f$ s7 o
C.To explain why the primary environmental factor responsible for that phenomenon has not yet been identified.
3 m, O1 p9 ]& @* f* {8 A* r D.To present several environmental factors that may contribute to a satisfactory explanation of that phenomenon.
: @4 k m: }) g* v' i: x/ k4 X 相关原句:There is still no universally agreed-on explanation for why there should be such a dramatic cessation of tree growth at the upper timberline.Various environmental factors may play a role.(Paragraph 4)
; {' [5 V! p" H* W+ I 本题解析:作者提到树带界线1处树木的消失很惊人,是为下文讲述出现这一现象的原因(environmental factors)做铺垫,因此选择D。6 }; ]# p" q- n. d
正确答案:D
+ @8 a( q3 M, g! Z" e4 r 11.According to paragraph 6, all of the following statements are true of plants in the alpine zone EXCEPT:(Negative Factual Information Question). W& v+ S, p& Z- i7 N! }
A.Because they are low, they are less exposed to strong winds.
0 w2 R6 e+ j7 s7 Y7 R: B3 Y: W( ~& a B.Because they are low, the winter snow cover gives them more protection from the extreme cold.
7 {6 z% w u# T C.In the equatorial mountains, they tend to be lower than in mountains elsewhere.www.Examw.com
8 N/ @8 p0 ~3 y( d- k9 ] D.Their low growth form keeps them closer to the ground, where there is more heat than further up.
1 _% N3 z. a! Z0 w% W, ~' w7 a1 T9 k' A 相关原句:This enables them to avoid the worst rigors of high winds and permits them to make use of the higher temperatures immediately adjacent to the ground surface.(Paragraph 6)# s# `0 \" G5 a! H: G- `
The low growth form can also permit the plants to take advantage of the insulation provided by a winter snow cover.(Paragraph 6)
( c' m K# `# c/ E) T) N) B* f In the equatorial mountains the low growth form is less prevalent.(Paragraph 6)2 S. e/ N# Y/ o, i# j
本题解析:文章指出在热带地区的山上(equatorial mountains),低矮生长形态便不多见了(less prevalent),C选项却称在热带地区植物更低矮,错误,因此选择C。ABD选项内容文中都有提及。
3 R5 K# ]# j d; W; `7 q7 _ 正确答案:C
% `2 c2 x% o, N, B 12.Look at the four squares [ █ ] that indicate where the following sentence could be added to the passage.
% [3 t5 k6 r1 Z8 I) }" M (Insert Text Question)
3 S, u# N0 Z# c8 I+ |" m. t: v1 g This explains how, for example, alpine cushion plants have been found growing at an altitude of 6,180 meters.8 C& y. u6 I* ^, m9 K
0 w1 _, M1 x7 h2 c# B
Where would the sentence best fit? Click on a square to add the sentence to the passage. |