Some people say love makes the world go around.* t( ], O+ D( F1 g2 n. Q
Others say it is not love; it's money.Since the __1__
3 u: @2 s% {+ }" K' i truth is that it is energy that makes the world& Z# ]+ j2 ], Q
go around. Energy is the currency of the ecological
& F4 V9 a* f; p! _& ^ system and life becomes possible even when food is __2__
4 a6 V) u0 |1 L, p/ t converted into energy, which in turns is used to seek, D: g! ~( r! Z- N5 A1 H' o
more food to grow, to reproduce and to survive. In this __3__$ N) e# o( x$ K. o
cycle all life depends. It is fairly well known that
( d, Q( F8 X( h' a% }2 |6 v! m wild animals survive from year to year by eating as many as __4__; o- x; K a% L+ u, k: G% ]7 r. y
they can during times of plenty, the summer and fall,
# d+ l. t. q: X: ` storing the excess, usually in the form of fat, and then
, \ t" A, {* P% R using these reserves of fat to survive during the hard time __5__7 E# Q5 e, M! C8 K8 `8 c
in winter when food is scarce. But it is probably less well, E5 a# s* z" n/ \" a
known that even with their stored fat, wild animals spend- o8 B+ d0 n; ^! \- U
less energy to live in winter than in summer. A good case3 _9 X0 I3 o# Y! ?8 ~1 s
in point is white-tailed deer. Like most wildlife, deer __6__& e5 F N R, }- E
reproduce, grow,and store fat in the summer and fall
# D1 P/ E$ x7 k0 Y& d when there is plenty of nutritious food available. A# N2 u8 C4 J" B
physically mature female deer in the good condition who __7__
6 p1 l# [% S4 C+ q/ j has conceived in November and was given birth to two fawns __8__" r2 q1 C/ l. a
during the end of May and first part of June, must search
; o% G' }9 p/ Q for food for the necessary energy not only to meet her
5 l& \3 s, j2 r7 `/ s0 l2 L7 e body's needs but also to reproduce milk for her fawns. The __9__2 ~7 w. a6 g& M' p
best milk production occurs at the same time that new plant8 W' y; G) L: ?/ ~& ^' z" \
growth is available. This is good timing, because milk
6 k2 \: Q d6 ]' i. i* ` K production is an energy consuming process -- it requires' |* l$ \" U |8 F" H. d/ Q
a lot of food. The need can be met unless the region has __10__
, m. n, ] g; _) b ample food resources.( y4 U/ J4 X. F. B
答案及解析:
" G. y# t5 Z0 B 1.Since--however/But
$ a) {6 F# r$ I; \! f 该句子与前面两个句子在意义和逻辑上是转折关系,而since只能引导原因状语从句或者时间状语从句。
. n# }' T7 k. ? g! A3 P 2.even--only
0 `1 V5 v3 e3 t; a' n1 f: V- X' r 用only强调条件when food is converted into energy,表示“只有当食物转化为能量时”,而even没有这个意思。 l# n3 I: v8 M) G
3.In--On
Q8 {; }3 W/ K" _; { 此处实际上考查的是depend on,为了强调状语,把on this cycle放在了句首,正常的顺序应该是“All life depends on this cycle”。9 t) h( n" d7 A- R0 b7 ^
4.many--much
$ x7 Y5 K1 Y" v" I6 I 这里much指代的是不可数名词food。& h/ h9 ?* {/ M. e
5.time--times
$ I+ f/ _. \. C6 B4 @( Y! } 根据上下文的语境,此处time为“某一时期的生活状况,环境等”的含义,一般用复数形式times,再如:We lived through terrible times during the war years。6 K# N8 M y: ^5 c- R8 G/ t V, c* M
6.is^--the( X# s. s5 X+ e- v$ p5 X# v
这句话是说:一个很好的例子是白尾鹿。这里是表示特指,所以white-tailed deer前面应该有定冠词the。
5 B9 R8 H- k& ? 7.the--in good condition为一个习语,good前面没有冠词。再如:The goods arrived in good condition。- h1 f+ O8 k, |! y' [7 @4 w
8.was--句子的主语是怀孕的成年母鹿,与give birth to 是施动者与动作的关系,不应用被动语态。1 I4 x. {4 W5 `; ]' T
9.reproduce--produce
7 t5 v9 m; L+ ^% q 根据常识和上下文的内容母鹿所需的能量是为了产奶(produce milk),而不是繁殖奶(reproduce milk)。5 }0 P/ E$ B. a! \
10.can^--not- V" I, T5 _, F/ v& v2 n$ x
句中用到的是“not…unless…”这一固定结构表示“除非…,才能…”。 |