2011年大学英语六级改错模拟练习题39

会计考友

Thomas Malthus published his "Essay on the Principle
of Population" almost 200 years ago. Ever since then,
$ `1 d/ Z# K; nforecasters have being warning that worldwide famine was ____1____
just around the next corner. The fast-growing population’s
$ a5 x: o8 D9 w* Q' T; }# n: q- Tdemand for food, they warned, would soon exceed their ____2____
supply, leading to widespread food shortages and starvation.
But in reality, the world’s total grain harvest has risen
1 ~1 j+ ]' T5 {% ?/ rsteadily over the years. Except for relative isolated trouble _____3____
spots like present-day Somalia, and occasional years of
$ i$ A6 I) m2 j; dgood harvests, the world’s food crisis has remained just ____4____
around the corner. Most experts believe this can continue
even as if the population doubles by the mid-21st century, ____5____
although feeding 10 billion people will not be easy for
  @# t: ~& I/ Dpolitics, economic and environmental reasons. Optimists _____6____
1 s1 {; _( y: V, V5 f6 s$ ypoint to concrete examples of continued improvements
. J) w8 B4 F* N5 w0 [) jin yield. In Africa, by instance, improved seed, more _____7____
fertilizer and advanced growing practices have more than
4 v- r& Z. x& `3 U# {3 e+ mdouble corn and wheat yields in an experiment. Elsewhere, _____8____
( I/ ?9 u& }# T5 w7 ^rice experts in the Philippines are producing a plant with few ____9____
stems and more seeds. There is no guarantee that plant
breeders can continue to develop new, higher-yielding
. L$ S% {& a8 ~0 d# }crop, but most researchers see their success to date as reason ____10____
for hope.
1. being -%26gt; been
2. their -%26gt; its
此处物主代词指food，所以要用单数形式的所有格its。
3. relative -%26gt; relatively
  R' l: y0 q5 k) c' K- ]8 w3 z修饰形容词（此处是过去分词形式）要用副词，所以要把relative改为relatively。
; g+ ]. t+ O2 p, t4. good -%26gt; bad / poor
  y+ j1 e; c0 [0 A9 J从逻辑上说，应该是收成不好（bad / poor harvest）是带来粮食危机（food crisis） 的原因之一，所以应该把good改为poor或者bad。
% b2 e; @2 I8 ?7 ]5. as -%26gt; /
此处是表示“即使”的意思，所以应该去掉as，即even if。
6. politics -%26gt; political
Politics是名词，修饰名词reasons要用形容词.
7. by -%26gt; for
for instance“例如”是固定搭配。
8. double -%26gt; doubled
& W7 C& P. u7 z7 I. Bhave (more than) doubled
9. few -%26gt; fewer
And连接两个对称结构，此处均比较级：fewer stems and more seeds。
/ L% }4 m0 H( H. X10. crop -%26gt; crops
* J/ _: q9 g8 y& Ocrop意为“庄稼，作物”时是可数名词，要用复数形式。