英语六级 2016年12月·第2套 Part III Section A 完形填空（选词填空）试卷排版
英语六级2016年12月·第2套 Part III Section A 完形填空（选词填空）：共 10 题、占整卷 5%（710 分制折算约 36 分）、卷面选文共 241 个英文单词。本页按真题原卷版式还原该模块卷面（不含解析）；逐题解析在「题目解析」页，全文逐句精读在「原文精读」页；本模块真题可免费下载 PDF/Word，入口见上方本题行。
试卷原卷
真题卷第2套(2016-12) • 六级
Part III Section A
Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.
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
选文出处：Scientific American《科学美国人》2016年2月3日文章:Seed-Scattering Birds May Help Trees Cope with Climate Change(传播种子的鸟儿或许会帮助树木应对气候变化)。