大学英语四级改错练习题及答案四

会计考友

Only a generation ago, Mauritania's capital city was
/ x# \) z/ W2 R. Lmany day's walk from the Sahara. Today it is in the Sahara. 1.__________
- D! H+ T/ t0 E1 FThe sand blows through the city streets and piles up in 2.__________
( C1 P; E) w1 b6 _/ L* zwalls and fences. The desert stretches out as far as the
* z0 @4 ]; y/ i/ S* Z9 deye can see.
* W. C0 b- H& U, k/ T6 L
In some parts of the Amazon rain forest in Brazil, all
the trees have cut down. The earth lies bare and dry in the 3.__________
) F& @0 x5 J. i' Uhot sun. Nothing grow there anymore. 4.__________
4 M6 P) M6 N1 E$ u: |. H6 h, R% O
Over vast areas of every continent, the rainfall and
& T3 T8 i1 B6 g0 W3 j9 mvegetation necessary for life is disappearing. Already 5.__________
, x4 B: x9 D  W- N% Rmore than 40 percent of the earth's land is desert and 6.__________
desert-like. About 628 million people--one out of seven--
, Q( u& R$ {* ?& Qlive in these dry regions. In the past, they have managed to
7 Q/ Y& e% w4 j7 s8 ~7 t3 [survive, but in difficulty. Now, largely through problems 7.__________
caused by modern life, our existence is threatened by the 8.__________
) f0 ]) }  t/ W- S; }7 Yslow, steady spread of the earth's deserts.

Many countries first became concerned in 1970s after 9.__________
! `0 x# }4 @0 b7 }5 Wa terrible drought and famine destroyed Africa's Sahel,
the fragile desert along the south edge of the Sahara.
. D" f1 }3 ^7 P2 L+ H6 ~8 r: q1 tThousands of people died even though there was a worldwide
effort to send food and medicine to the starved people. 10.__________
, Q6 \  `& w9 \* u: x: u9 z0 c$ ]9 t7 s
参考答案
1. day's → days'
, `8 q: c/ t+ y4 P) A/ @& y2. in → against
3. have ∧ cut → been
4. grow → grows
5. is → are
' z! |  [5 R$ A6 x6 p+ y5 t6. and → or
7. in → with
; O; w' P  \5 t2 H8. our → their
9. in ∧ 1970s → the
& R- i0 o8 T- A  A4 ~$ m4 g. w10. starved → starving