英语四级考试辅导：改错精练（4）

会计考友

　　Only a generation ago, Mauritania's capital city was
8 R9 Z  m+ P4 Q! y8 d0 ?　　many day's walk from the Sahara. Today it is in the Sahara. 1.__________
　　The sand blows through the city streets and piles up in 2.__________
! U# E& y7 W- }6 U　　walls and fences. The desert stretches out as far as the
　　eye can see.
" b" i9 ]  w1 I. H　　In some parts of the Amazon rain forest in brazil, all
# i* s  V# Q& B- f' c& P　　the trees have cut down. The earth lies bare and dry in the 3.__________
　　hot sun. Nothing grow there anymore. 4.__________
　　Over vast areas of every continent, the rainfall and
: d4 q: K: G) g7 H, k9 s% \　　vegetation necessary for life is disappearing. Already 5.__________
　　more than 40 percent of the earth's land is desert and 6.__________
　　desert-like. About 628 million people--one out of seven--
　　live in these dry regions. In the past, they have managed to
　　survive, but in difficulty. Now, largely through problems 7.__________
; {% ]) I0 b/ {% W1 U　　caused by modern life, our existence is threatened by the 8.__________
+ n7 ]+ a/ }) C9 c  _　　slow, steady spread of the earth's deserts.
% i, N8 ?) w5 {) m, T　　Many countries first became concerned in 1970s after 9.__________
　　a terrible drought and famine destroyed Africa's Sahel,
" K9 z6 _( O$ x) ^* H. y; t+ g0 O+ w* n3 ?　　the fragile desert along the south edge of the Sahara.
　　Thousands of people died even though there was a worldwide
9 g- Y% t0 j; \# S" C　　effort to send food and medicine to the starved people. 10.__________
! f; n7 _, P& ~4 ^# l% Q　　参考答案
% Y5 A1 n3 W5 _( E　　1. day's → days'
　　2. in → against
9 C% I: C: d; _0 S. a/ ?, f　　3. have ∧ cut → been
. N$ @0 o+ h2 {  Y　　4. grow → grows
　　5. is → are
　　6. and → or
4 R9 m- f+ q6 @. ?1 {1 Q- f& t　　7. in → with
0 y* f3 H' y( @/ X( x　　8. our → their
　　9. in ∧ 1970s → the