Government officials reported three new cases of mad cow, bringing the total so far this year to 99. Last year, France recorded just 31 cases of the mad cow disease. The rising numbers are in part (1) a new testing program that focuses on cows that are most (2) . That program has (3) 39 cases. But still 60 new cases were identified in the usual way, (4) were found in 1999. Many scientists (5) that this year, five years after safety precautions were (6) , the number of cases would be (7) .
The rise in cases has (8) some scientists to question whether the disease can be transmitted in ways not yet understood. Scientists are still (9) the disease, first recognized in cows in 1986.
It appears that it is not caused by a bacteria, virus or fungus, but (10) infectious particles called prion, perhaps (11) a virus or other agent. The disease kills cells in the brain, (12) it spongy and full of holes.
France has taken more steps to (13) safety than most European countries, (14) refusing to take English beef (15) the European Union. But some scientists believe that France has not been (16) in imposing the ban on feed that (17) animal pans.
Some French officials hope that the sudden interest in mad cow disease will mean that French consumers will become educated about it, thereby recognizing that French beef is actually (18) controlled. Every cow is given a passport at birth, and extensive information about its parentage and (19) it was raised must be (20) to any slaughterhouse. When a diseased animal is found, the entire herd is destroyed.
18（）
A.stiff
B.rigidly
C.hard
D.roughly
参考答案：B
解析：
语义搭配题。rigidly是副词，意为“严格地”，根据上下文，法国消费者加深对疯牛病的了解，就可以认识到法国牛肉是受到严格控制的，故用[B]rigidly来修饰control(控制)。选项[A]stiff意为“坚硬地”；[C]hard意为“努力地；艰难地”；[D]roughly意为“粗糙地”，均不符合题意。全句可译为：有的法国官员希望，对疯牛病突然产生的兴趣将意味着法国的消费者开始了解这种疾病，从而认识到法国牛肉是受到严格控制的。