You stare at waterfall for a minute or two, then shift your gaze. u r0 j# I, l8 h* l$ x
to its surrounding. What you now see appears to drift upward. You __1__
+ W/ l1 ]/ _3 T% n, w1 C are board a train in a busy station when suddenly another train next __2__
3 R# S, L7 s T: c8 `! n to your starts moving forward. __3__2 O0 _, t- X! s$ Y
For a fraction of a second you feel that your train has lurched1 f/ O0 r7 K- ]
backward. These optical illusions occur because the brain is
8 \) ?, t7 I. K0 [- [, H6 s. b& j constantly matching its model of reality to signals from the body’s
_% ]$ R9 k( L" ~$ b, l1 v sensors and interpret what must be happening – that your train __4__
5 {% R* r9 V7 m+ | might have moved, not the other; that downward motion is now __5__. _# c/ o$ V7 c
normal, so a change from it must be perceived as upward motion.
, J; g+ W. u2 S( Q% V2 [ The sensors that make this magic are two kinds. __6__
0 d! o7 r& C1 g L o/ r' G7 x Each eye contains about 120 million rods, which provide some-
# K( M9 G$ m3 Q) u what blurry black and white vision. These are the windows of night
& @5 H; Y# ?! v: @8 Z; ` vision; once adapted to the dark, they can detect a candle burnt __7__
; B$ y" [) k4 ?; m4 D5 w& F( P ten miles away. Colorful vision in each eye comes from six to seven __8__0 @ ?! ^ o4 O/ J* ^9 p
million structures called cones. Under ideal conditions, every cone4 l& Y; w' ]8 O5 @0 p- H1 E; Y# W
can “see” the entire rainbow spectrum of visible colors, but one
7 s+ c& n( l$ Z* Y" _ type of cone is most sensitive to red, another to green, the third to __9__7 ^9 r8 I4 ], j7 K8 z3 m% l# H2 D. T
blue.
3 s$ v& P; |3 E' Z6 v, W By monitoring how many wavelength of light affects the different
, B; z$ z) ~$ r, D- l cones, a connected ganglion cell can determine its “color” and relay
/ c0 C0 L5 j8 `* ?! T' U5 Z that data brainwork. Rods and cones send their messages pulsing an __10__* O1 { Z! |+ y+ m2 t4 U2 Z
average 20 to 25 times per second along the optic nerve.) U. |- T" l" b3 I6 M4 N% b% v
答案及解析:
% D. n- c9 N! }. M 1.surrounding－surroundings3 ?+ f* P2 `# A! G J
surroundings作为名词总是以复数形式出现，surrounding是形容词。* k. e) K G) R& ~. g$ ?
2.board－aboard；^board－on
* V# a3 b6 Q5 |, M& J6 M; R$ N be abroad a train ( a ship, a plane…)意思是“在火车（船、飞机）上”。board 是名词，可以说be on board （这个改错之前也出现过，经常出现的大家可都要记住啦）
% S+ z# r! A# f6 N) w) n) f 3.you－yours
# A$ @: S9 M$ T0 D 物主限定词your不能作介词的宾语，应该用物主代词yours。
`. D5 Y* e* n; P2 ]+ N: m 4.interpret－interpreting
6 [) w6 H' q, n! M" ] Interpret 通过and 和matching并列，所以也应该是进行体形式。# z/ ^: a/ Q G" g7 G! o" J' I
5.might－must
, E" T; i$ d' ^2 h" |7 q8 Y 根据上下文，这里必须用表达非常肯定的语气must，而不是不肯定的“might”，而且，后面的not the other也强调了非此即彼的肯定性。
* L @: @. x0 z% d2 T6 n9 [: o+ R 6.are^－of
0 r0 b1 m; p/ K0 { 加上介词of作主语补足语表示对主语的某一种性质的描述。5 n+ J2 G- J4 E6 E) K3 a ^
7.burnt－burning
5 f! F" `; I& n 如果用过去分词burnt修饰candle，那么是说“十英里之外燃尽的蜡烛”，那是不可能用肉眼看到的，所以应该改成burning，表示“在燃烧的蜡烛”。
' _+ d; B- e. f A, [7 ^# L) H 8.Colorful－Color
- L5 S w9 {) O; k. X9 [ Colorful是指所修饰的事物本身具有明亮的或者不同的颜色，而color作定语是指修饰的事物使别的事物的各种颜色能够展现出来，而不是仅仅看到黑白两色，比如：color television，color photo，color picture等。
. ~+ M |" b" Z$ s) Y A# z 9.the－a- v6 D8 b2 V; B+ `" k& ]9 i
the third 表示顺序排列，和the first， the second 对应，“a third”表示数量上的增加，和one，another相对应。0 j$ }; b2 U3 O
10. that－those9 e4 c3 ]& P" Z. z: Q
data这个词是datum的复数形式，所以应该用those修饰 |
发表于 2012-8-14 11:29:10
