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2016年12月英语六级阅读真题及答案 第3套 选词填空

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  1. 第 1 页:阅读真题
  2. 第 2 页:阅读答案
The tree people in the Lord of the Rings--the Ents--can get around by walking. But for real trees, it's harder to uproot. Because they're literally rooted into the ground, they are unable to leave and go __26__.
When a tree first starts growing in a certain area, it's likely that the __27__ envelope--the temperature, humidity, rainfall patterns and so on--suits it. Otherwise, it would be unable to grow from a seedling. But as it __28__ , these conditions may change and the area around it may no longer be suitable for its __29__.
When that happens, many trees like walnuts, oaks and pines, rely __30__ on so-called "scatter hoarders," such as birds, to move their seeds to new localities. Many birds like to store food for the winter, which they __31__ retrieve.
When the birds forget to retrieve their food--and they do sometimes--a seedling has a chance to grow. The bird Clark's nutcracker, for example, hides up to 100,000 seeds per year, up to 30 kilometers away from the seed source, and has a very close symbiotic (共生的) relationship with several pine species, most __32__ the whitebark pine.
As trees outgrow their ideal __33__ in the face of climate change, these flying ecosystem engineers could be a big help in __34__ trees. It's a solution for us--getting birds to do the work is cheap and effective--and it could give __35__ oaks and pines the option to truly "make like a tree and leave."A. ages
B. breathing
C. climatic
D. elsewhere
E. exclusively
F. forever
G. fruitful
H. habitats
I. legacy
J. notably
K. offspring
L. replanting
M. subsequently
N. vulnerable
O. withdraws
重点单词   查看全部解释    
scatter ['skætə]
想一想再看
n. 散布,零星少量
vt. 驱散,散播
 
certain ['sə:tn]
想一想再看
adj. 确定的,必然的,特定的
pron.
 
pine [pain]
想一想再看
n. 松树,松木
vi. 消瘦,憔悴,渴望
联想记忆
vulnerable ['vʌlnərəbl]
想一想再看
adj. 易受伤害的,有弱点的
联想记忆
source [sɔ:s]
想一想再看
n. 发源地,来源,原始资料
 
option ['ɔpʃən]
想一想再看
n. 选择权,可选物,优先购买权
v. 给予选
联想记忆
exclusively [iks'klu:sivli]
想一想再看
adv. 排他地(独占地,专门地,仅仅,只)
 
suitable ['sju:təbl]
想一想再看
adj. 合适的,适宜的
adv. 合适
 
seedling ['si:dliŋ]
想一想再看
n. 幼苗
联想记忆
solution [sə'lu:ʃən]
想一想再看
n. 解答,解决办法,溶解,溶液
联想记忆

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