Scientists Alan M．Goldberg and Thomas Ha

问题：

Scientists Alan M．Goldberg and Thomas Hartung describe recent advances in replacing the use of animals in toxicology(毒物学)testing．Improvements in cell and tissue culture technologies，for example，allow a growing number of tests to be performed on human cells alone．Computer models are becoming increasingly complex and many could one day become more accurate than trials in living animals．

Since the late 1990s，Huntingdon Life Sciences--a company that conducts testing of substances on animals conducted by the Environmental Protection Agency and the Food and Drug Administration—has become a proving ground for aggressive strategies by animal-rights militants （好战分子）．At a hearing，a Senate．committee listened to testimony（证词） against Huntingdon employees and financial institutions providing services to the company．One experimentation witness at the hearing insisted that any means necessary were justified（辩护） to spare animals’ lives；he has previously accepted the idea of murder to that end．

Use of animals in testing and in biomedical research continues to be necessary in many instances and is ethically（伦理道德地）preferable to experimenting on humans or giving up cures that could save human lives．But for the sake of people and animals alike，the development and acceptance of animal substitutes deserve enthusiastic support．

In some instances, substitutes are already thought as good or better than animals，but supervising agencies（监督机构）have yet to catch up．In both the European Union and the U．S．，scientists and companies wanting to use the new alternative tests complain that regulatory standards for proving a drug or chemical to be safe for humans force the continued use of animals．Thus，animal-loving Americans might turn to persuading the EPA and the FDA to speed validation（确认）of new methods so that they can be more widely employed．And animal advocates（保护者） who want to influence business could consider investing in the small biotech’s and large pharmaceutical（药品的） companies that are working to develop alternatives to animals in research．

小题1:_____ plays a leading role in replacing the use of animals in testing．

A．Huntingdon Life Sciences

B．Improvement in technologies

C．Animal-fights militants

D．Scientists Alan and Thomas小题2:Accordingly, the animal-rights militants hold the view that_____．

A．animals shouldn’t be used in toxicology testing

B．animals should enjoy equal rights with human beings

C．animals should live wildly and freely

D．we should protect animals from being killed casually小题3:From the passage，we can find _____．

A．the use of animals in testing has been stopped abruptly

B．animal substitutes are not preferable

C．supervising standards contribute to the continued use of animals in testing

D．only Huntingdon Life Sciences is accused小题4:What’s the main idea of the passage?

A．Saving animals and people．

B．The new trend in toxicology testing

C．The use of animals in testing is against human nature

D．New technology changes the fate of animals小题5:The writer’s attitude towards replacing the use of animals in toxicology is____．

A．arbitrary（武断的，随意的）

B．pessimistic

C．indifferent（不关心的 ）

D．optimistic