2020年职称英语理工类C级补全短文练习题(4)

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2020年职称英语理工类C级补全短文练习题(4)

A Memory Drug?

It'sdifficult to imagine many things that people would

welcome more than a memory-enhancing drug.____1____

Furthermore,such a drug could help people remember past

experiences more clearly and help us acquire new information

more easily for school and at work.As scientists learn more

about memory,we are closing in on this tantalizing goal.1

Some of the most exciting evidence comes from research

that has built on earlier findings linking LTP2 and memory to

identify a gene that improves memory in mice.____2____ Mice

bred to have extra copies of this gene showed more activity

in their NMDA receptors,more LTP,and improved performance

on several different memory tasks—learning a spatial layout3,recognizing familiar objects,and recalling a fear-inducing

shock.

If these basic insights about genes,LTP,and the

synaptic basis of memory can be translated to people—and

that remains to be seen—they could pave the way for memory-enhancing treatments.____3____ As exciting as this may sound,it also raises troubling issues.Consider the potential

educational implications of memory-enhancing drugs.If memory

enhancers were available,children who used them might be

able to acquire and retain extraordinary amounts of

information,allowing them to progress far more rapidly in

school than they could otherwise.How well could the brain

handle such an onslaught of information? What happens to

children who don't have access to the latest memory enhancers? Are they left behind in school—and as a result handicapped

later in life?

____4____ Imagine that you are applying for a job that

requires a good memory,such as a manager at a technology

company or a sales position that requires remembering

customers' names as well as the attributes of different

products and services.Would you take a memory-enhancing drug

to increase your chances of landing the position? Would

people who felt uncomfortable taking such a drug find

themselves cut out of lucrative career opportunities?

Memory drugs might also help take the sting out of

disturbing memories that we wish we could forget but can't.4

The 2004 hit movie Eternal Sunshine of the Spotless Mind told

the story of a young man seeking just such freedom from the

painful memories of a romantic breakup.As you will see in the

section on persistence later in the chapter,emotionally

arousing events often create intrusive memories,and

researchers have already muted emotional memories with drugs

that block the action of key hormones.Should emergency

workers who must confront horrifying accident scenes that can

burden them with persisting memories be provided with such

drugs? Should such drugs be given to rape victims who can't

forget the trauma? Memory drugs might provide some relief to

such individuals.But could they also interfere with an

individual's ability to assimilate and come to terms with a

difficult experience?5 ____5____

练习:

A.Like steroids for bulking up the muscles,these drugs

would bulk up memory. B.A memory enhancer could help eliminate forgetting

associated with aging and disease.

C.What are the potential implications of memory-enhancing

drugs for the workplace?

D.We may find ourselves struggling with these kinds of

questions in the not-too-distant future.

E.There is a pill that you could take every day to allow

you to remember everything.

F.The gene makes a protein that assists the NMDA2

receptor,which plays an important role in long-term memory

by helping to initiate LTP.

答案与题解:

1.B依据上一句的“很难想象一种提升人们记忆力的药会受到人们吹捧”;下面应该对这个现象做出解释,即这种药物有什么疗效;而后一句的Furthermore这个指示词起到了递进的作用,进一步说明这种药物的益处。More than :非常,极其,十分

2.F前一句的关键词是gene、LTP和mice,它讲的是有些令人兴奋的证据是从研究中得出的;该研究基于早期连接LTP和记忆的发现,该结果确定了提髙老鼠记忆的基因;而后一句进一步阐述这个发现,开头的mice能够是一个连接词。

3.A前一句讲:如果这种结果用于人类的话,人们就有可能把提升人的记忆力用于临床。这个句讲:就像类固醇用于提髙人的肌肉水平,这种药物也能够提升人的记忆力。

4.C一般情况下,每一段的第一句都是本段的主题句。而该句是一个问句:这种提升记忆力的药物用于职场有什么潜在的启示呢?紧接着本段其余几句都提出关于这种药物是否会对职场的提升有什么影响的问题。

5.D本句是全文的最后一句。应该是总结性的。鉴于前面都列举了这种提升记忆力的药所面临的一系列问题,所以,我们在不久的将来要面临这些问题。