2012年大学英语四级考试阅读练习题六

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The Antarctica is actually a desert. It is the only continent on the earth without a river or a lake.
& Q" `4 n4 o) x7 w0 Z& T) TThe Antarctica is all ice all year round. The warmest temperature ever recorded there is zero, at the south pole. Explorers used to think that a place so cold would have a heavy snow falls each year, but less than ten inches of snow falls each year , that is less than half an inch of water, ten times that much moisture falls in parts of the Sahara.
' _# L1 U) w' P' b% YThe little snow that falls in the Antarctic never melts. It continues to pile up deeper and deeper year after year and century after century. When the snow gets to be eighty feet deep, it is turned to ice by the weight of the snow above.
  \0 b+ v% x3 ~: ?' n1.       the Antarctic is called a desert because it ____
A is sandy
B has the same temperature as a desert
# U% r; s  U- jC has little moisture and no lakes or rivers
D has no water resource
2. the Antarctic has ___
A ten times as much moisture as the sahara
B the same amount of moisture as the sahara
" M: R" L. O! Q, q5 L5 wC about one-tenth the moisture of the sahara
5 {9 K% j/ d8 R! ?! MD less than one fifth the moisture of the sahara
& O* l+ a2 z1 N+ v4 u7 _3. the snow in the Antarctic is very deep because it ___
- A7 b' c6 r+ J4 C' b: P. [  VA never stops falling 来自www.Examw.com
4 S! F9 T: l# ?; kB piles up year after year
. [! q/ \2 {. aC never melts
8 I4 J7 d7 U% x2 z# U8 CD both B and C
, p( U: |+ }( b* h% X# L2 k# L  T 4.the snow turns to ice when ____
A it gets wet
; p) g# G) L  {0 X- \/ i# }B the temperature gets colder
3 V+ d6 T" C9 \: J& A# U- VC the next snowfalls comes
D the snow above it is heavy enough
# F0 g9 W. \% [5. the best title for the section is ___
; x& ^$ i4 N5 ~7 {A a strange continent
B the Antarctic ---- an ice desert
C snowfall at the south pole
+ ~! T3 ^& B; R3 C$ ID the world’s greatest desert
答案：
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