英语专业八级改错练习题及答案解析(102)

会计考友

　　Mars has provoked much speculation on the possibilities of __1__
　　life on Earth than any other planet in the Solar System. __2__
　　The presence of water is a prerequisite for the existing of life. __3__
7 |: ^% h* g* k( f4 U　　Therefore, “follow the water” has been NASA’s chief guideline
　　for the exploration of a red planet. Although Mars experiences __4__
　　seasons like on Earth and as polar caps which composed __5__
$ ?/ G* J+ T3 u　　of carbon dioxide and water ice, today it is bone-dry and frigidly
5 v+ r- k" V& \　　cold. But evidence is rapidly accumulating that Mars is once __6__
　　much wetter, with a more clement climate.
/ M  `' z! V9 z6 e　　This evidence comes from orbiting satellites and from data collected
　　by roving landers.
0 U% ~+ L# o. O4 \: j+ n　　Since the 1970s, space probes of Mars have revealed __7__
) m/ d# ], S! d! w1 X　　numerous features apparent craved by flowing water, such as
# F" Y, ], t8 ~　　winding, branched valleys resembling driedout streambeds
　　and giant outflow channels gouged by catastrophic floods.
' T0 u* {1 J/ S- C3 _% E" N　　Recent high-resolution imagery from the Mars Odyssey Themis
　　reveal numerous examples of branched valleys that from __8__
, u. T5 h- ^# a, z, o* ^' L　　tightly-packed integrated drainage system. These channels
　　origins at topographic high points; the valleys widen “downstream”, __9__
: ]/ i$ l% w3 ?& m7 `) g+ q/ w　　some even displaying inner valleys. The valley networks densities,
8 N" e/ h& Z8 I# E2 g3 R) S, _　　comparative to those of terrestrial drainage basins. __10__
" w' E+ O7 \& a1 @  y7 o　　These features were most likely produced by rainfall, during wetter, warmer periods in the past.
　　答案：
* z8 K/ r  x8 H: j4 c+ ?　　1、much—more 或much后加more 句法错误，后半部分出现了than，前半部分用比较级
! {0 g% `  c$ E0 l4 T　　2、on---beyond 词汇错误，“地球以外的生命”不因该用on。
　　3、existing—existence 此行混淆，“生命的存在”应用existence。
　　4、a---the
+ @1 j( e3 H' |8 ^* h  E　　5、which去掉或which后加are，句法错误。
0 h+ Q/ m: D5 N8 k0 b  W* p  E  A& w　　6、is---was 句法错误，时态错误。虽然主句的时态是现在进行时，但是从句中有时间状语once，所以用过去时。
　　7、of-----to 词汇错误，probe与to，into搭配。
　　8、reveal---reveals 主谓不一致。
　　9、origins-----originates 词性混淆。Origin是名词意思是“起源，由来”，动词形式为originate意思是“引起，起源”
1 `) l6 R2 X! U- M　　10、comparative---comparable词汇错误。句意为：谷地网络呈现变种度量特征，包括与陆地流域盆地相似的网状密度。应用可比较的comparable。