大学英语四级改错练习题及答案二

会计考友

Americans this year will swallow 15000 tons of
aspirin, one of safest and most effective drugs 1.__________
invented by man. The most popular medicines in the 2.__________
4 U# ^* }; O, \' q) }world today, it is an effective pain reliever. Its bad
1 ^/ v4 G* R4 i1 E5 }" a; V2 x! r' B+ Reffects are relatively mild, and it is cheap.

For millions of people suffered from arthritics, 3.__________
8 a8 b9 T& y2 B/ j' Sit is the only thing that works. Aspirin, in short, is
  t& q8 l! M& H+ t6 x1 D  {4 ptruly the 20th-century wonder drug. It is also the
second largest suicide drug and is the leading cause of
) b$ X. C, q) Mpoisoning among children. it has side effects that, if 4.__________
% L* I( a$ a4 S6 _$ l+ Arelatively mild, are largely unrecognized between users. 5.__________

5 ?0 Z  Y& ?7 Y0 |0 {Although aspirin was first sold by German company
in 1899, it has been around much longer than that.
$ _8 w2 Z: h! X  o) z- oHippocrates, in ancient Greece, understood the medical value
of the leaves and tree bark which today is known to 6.__________
contain salicylates, the chemical in aspirin. During the
; K0 a% `, l% K7 D19th century, there was a great number of experimentation 7.__________
  \  F# G1 u! @% m+ N% ^6 Iin Europe with this chemical, and it led in the introduction 8.__________
of aspirin. By 1915, aspirin tablets were available
in the United States.

A small quantity of aspirin(two five-grain tablets)
relieves pain and inflammation. It also reduces down 9.__________
8 [/ S" Z4 }2 c5 \7 S, m" ofever by interfering with some of the body's reactions.
Specifically, aspirin seems to slow down the formation
5 Z9 D) P. |3 O4 k6 Y/ ^9 Jof the acids involved in pain and the complex chemical
reactions that cause fever. The chemistry of these acids
  B! v# |- \& }2 E  Gis not fully understood, and the slowing effect of aspirin 10.__________
is well known.

: [+ o  K0 H+ \: T参考答案　
1. of ∧ safest → the
2. medicines → medicine(or: drug)
3. suffered → suffering
4. if → though(or: although)
5. between → among
6. is → are
" R+ f5 C6 ?) D/ n# a& P7. number → deal(or: amount, quantity)
8. in → to
9. down → /
10. and → but