40．A．in B．from C．of D．by
答案 21.B 22.C 23.A 24.B 25.D 26.A 27.B 28.C 29.D 30.C 31.A 32.C 33.A 34.D 35.C 36.B 37.D 38.A 39.C 40.B
Passage 4
(浙江省宁海县知恩中学2009届高三最后适应性考试)
Of all man’s natural enemies, the
one that has caused him more trouble than any other must be the common rat. For
centuries, man has been 21 to solve the problem of rats. The
ancient Egyptians were probably the first people to try to 22
them with poison, and this method is still being used today. This
says a great deal about how 23
this method has been. We have set innumerable 24
, from simple wires to 25
machines that drowned the rats in beer! We have tried to inflect
them with 26 developed germs. We’ve 27 tried to raise super cats to kill
them. However, we are still losing the 28
.
So why can’t man manage to 29 a mere animal like the rat? The answer is simply that the
rat isn’t a mere animal; It is a very special kind of animal. An average rat 30
: wriggle through a hole no 31
than a $1 coin; climb a brick wall as if it were climbing steps;
happily leave a building by being flushed down the toilet, and then return the
same 32 ; jump from a fifth storey window
and run away 33 ; and last but certainly not least ,
34 so rapidly that a single pair could
have 15,000 babies in one year!
35 all these phyical qualities, we also have the
36 that rats are rather good at not
getting caught. They seem to have an almost supernatural ability to 37
when food has been poisoned and a suspicious rat will starve 38
it eats poisoned food. They also seem to be able to 39 a trap with no real difficulty.
One thing looks certain, we had
better find a way to 40 these small brown creatures soon, or
it may be too late.