</p> 4.Paragraph 2 supports which of the following statements about deciduous trees?(Factual Information Question)! q9 Y8 j) O8 D* X: M3 ~
A.They cannot grow in cold climates.中华考试网(www.Examw。com)" H x9 A) q1 v w+ M- e
B.They do not exist at the upper timberline.; U, n# {+ z5 u9 U6 d; \- k$ _
C.They are less likely than evergreens to survive at the upper timberline. H3 x' q0 j+ l# s
D.They do not require as much moisture as evergreens do.
5 k s$ H$ P0 b7 R4 o0 A5 q( D 相关原句:Timberline trees are normally evergreens, suggesting that these have some advantage over deciduous trees (those that lose their leaves) in the extreme environments of the upper timberline.(Paragraph 2)
{5 [1 a6 Q* w6 Z 本题解析:常青树比落叶树更能适应极线1的生存环境,更容易存活(have some advantage over deciduous trees (those that lose their leaves) in the extreme environments),因此选择C。注意文中亦指出在喜马拉雅山部分地区的树带界线1处有落叶树,B错误。! ^: I& W0 p }; e4 N9 D _
正确答案:C
% a2 S' p5 m& d! U9 O T) T 5.The word attain in the passage is closest in meaning to(Vocabulary Question)
& ~8 K' i0 C9 A' o+ _, k A.require- C$ y+ a2 f' U) [; ]0 S. c! {$ Q
B.resist( p' |" t j0 Z
C.achieve中华考试网(www.Examw。com)' g" _% ], ^$ y+ F1 K
D.endure
' e& D' T4 W- n. A4 r3 M/ B; g. T 相关原句:This is particularly true for trees in the middle and upper latitudes, which tend to attain greater heights on ridges…(Paragraph 3)
% G' B1 \5 l# _ ]# l 本题解析:attain意为“获得,得到”,此处指树木可以达到某一高度,即achieve,因此选择C。" F- v; ]4 y% l+ ]3 b
正确答案:C
- W; V% `- @ [5 _ 6.The word they in the passage refers to (Reference Question)
3 @; _& }# \' U' d- |5 R; k A.valleys
4 t! u" M, U5 n+ I1 B B.trees
& |& J( l! |4 e& f/ g0 y$ n7 p C.heights
4 y5 ]& Z2 p2 ]! {. ` D.ridges
$ _1 n. }* |: `6 {+ F, a9 p 相关原句:As the snow is deeper and lasts longer in the valleys, trees tend to attain greater heights on the ridges, even though they are more exposed to high-velocity winds and poor, thin soils there.(Paragraph 3)+ q" U: j& M# ^. I; W
本题解析:即树木在山脊处长得更高,虽然在那里它们要经受更多考验,they指代trees,因此选择B。
% I" e+ F: l& K9 K/ w2 M$ P 正确答案:B3 ]1 M# O+ O8 J$ Q/ _4 h, I
7.The word prone in the passage is closest in meaning to(Vocabulary Question)
! Y6 q8 E* I; y, p( T/ _ A.adapted4 C* S2 a9 e$ G7 O) x
B.likely; V$ Z9 ~" Z* r0 R+ T
C.difficult
4 b* d5 B) u6 c* t: f D.resistant
6 w: {+ i' _/ [% i8 G 相关原句:In the tropics, the valleys appear to be more favorable because they are less prone to dry out, they have less frost, and they have deeper soils.(Paragraph 3)9 H( b. C6 w% {
本题解析:prone意为“有…倾向”,即“容易变得…,很可能…(likely)”,因此选择B。5 B- H# l6 n& b" Q/ t J
正确答案:B# ~1 A( Q; C, \, M# X& R" `+ [
8.According to paragraph 3, which of the following is true of trees in the middle and upperlatitudes?
/ X! T) E+ b7 \( I2 a (Factual Information Question)& w) Z b% ~) H; Y& v9 B# E
A.Tree growth is negatively affected by the snow cover in valleys.中 华 考 试 网
! y5 R$ w# G% O( t; g B.Tree growth is greater in valleys than on ridges.
# Z9 ]2 R: E) C( d( o' |& T C.Tree growth on ridges is not affected by high-velocity winds.0 B1 l$ H" `1 f; }' v) u* A
D.Tree growth lasts longer in those latitudes than it does in the tropics./ ~1 ]7 `5 O- p$ g6 L5 h
相关原句:This is because middle- and upper- latitude timberlines are strongly influenced by the duration and depth of the snow cover.As the snow is deeper and lasts longer in the valleys, trees tend to attain greater heights on the ridges, even though they are more exposed to high-velocity winds and poor, thin soils there.(Paragraph 3)
- ~4 ~, Z% }9 t$ e8 E+ l' D6 { 本题解析:文中指出中高纬度的树木之所以在山脊处长的更高是因为山谷处的积雪太深太久,对其生长不利,所以即使山脊环境有诸多不利(风大,土壤贫瘠等),树木还是在山脊长得更高。因此选择A。
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- X3 F6 q+ G/ m& l/ o 正确答案:A |