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A controversial decision on whether choice cuts of steak and cartons of milk produced from cloned animals are suitable for the d
A controversial decision on whether choice cuts of steak and cartons of milk produced from cloned animals are suitable for the d
admin
2010-02-22
77
问题
A controversial decision on whether choice cuts of steak and cartons of milk produced from cloned animals are suitable for the dinner table is now long overdue.
Hundreds of pigs, cows and other animals created with the help of cloning are living (1)_____ farms across the United States and (2)_____ the forthcoming ruling will directly (3)_____ American consumers, British holidaymakers may also (4)_____ themselves at the forefront of a food revolution that many commentators expect will (5)_____ arrive here.
(6)_____ the birth of Dolly the sheep—the first mammal cloned from an adult cell—there were extreme predictions of herds of genetically (7)_____ bulls and pastures (8)_____ with cloned dairy cows.
That double (9)_____ of the past decade has not yet been realized (10)_____ clones have become a familiar sight at agricultural fairs in America, where producers of (11)_____ pigs and cattle have been among the first to (12)_____ cloning, which offers a way to keep (13)_____ traits without inbreeding problems caused by traditional methods. Clones of rare and elite animals, including sheep, goats, and rabbits, (14)_____ a way to improve animal healthy, (15)_____ the nutritional value of meat and milk, and breed animals immune (16)_____ diseases or better suited for developing countries.
The safety of cloned (17)_____ has been under examination by various bodies. Three years ago the US National Academy of Science concluded that (18)_____ available data indicated that cloning met animal welfare and food safety considerations, more information was needed. (19)_____ scientific evidence suggests that there is little (20)_____ for alarm, at least on food-safety grounds.
选项
A、numerous
B、extreme
C、desirable
D、reconstructive
答案
C
解析
词汇辨析题。本句对克隆技术和传统方法做了比较,表示克隆不会出现传统方法带来的近亲繁殖问题,由此可以判断,本句表述克隆动物的优点,所以选desirable"理想的,合意的".,这里指"保留理想的遗传特征"。numerous意为"众多的,许多的";extreme意为"极端的,极度的";reconstructive意为"重建的,改造的"。
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0
考研英语一
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