2．There are three separate sources of danger in supplying energy by unclear power．
First，the radioactive material must travel from its place of production to the power station．Although the power stations themselves are strongly built，the containers used for the transport of the materials are not．Normally，only two methods of transport are in use，namely road or rail．Unfortunately，both of these may have an effect on the general public，since they are sure to pass near，or even through，heavily populated areas．
Second，there is the problem of waste．All nuclear power stations produce wastes that in most cases will remain radioactive for thousands of years．It is impossible to make these wastes nonradioactive，and so they must be stored in one of the inconvenient ways that scientists have invented．For example，they may be buried under the ground，or dropped into deserted mines，or sunk in the sea．However，these methods do not solve the problem，since an earthquake could easily break the containers．
Third，there may occur the danger of a leak or an explosion at the power station．As with the other two dangers，this is not very likely，so it does not provide a serious objection to the nuclear program．However，it can happen．
Separately，these three types of dangers are not a great cause for worry．Taken together，though，the probability of disaster is extremely high．

56．The author thinks that the ways to store nuclear wastes areB．
A．easy   B．ineffective   C．reasonable   D．impossible
57．What do we learn from the last paragraph？A
A．By itself，none of the three dangers is likely to cause worry．
B．The dangers of nuclear energy can certainly be avoided．
C．The general public are strongly against the nuclear program．
D．The power station itself is a very safe place．
58．What is this passage about？C
A．Uses of nuclear power．      B．Public anger at nuclear power．
C．Dangers from nuclear power． D．Accidents caused by nuclear power．

分析 文章主要講述了核能的危險(xiǎn)性，包含三個(gè)方面：運(yùn)輸路徑；浪費(fèi)問(wèn)題和核泄漏．

解答 56-58 BAC
56題答案是B．推理判斷題．根據(jù)文章第2，3，4段since they are sure to pass near，or even though，heavily populated areas．和However，these methods do not solve the problem，since an earthquake could easily break the containers．以及so it does not provide a serious objection to the nuclear program．However，it can happen．說(shuō)明這三種方法都有很多的危險(xiǎn)性，并不是十分的有效．故選B．
57題答案是A．推理判斷題．根據(jù)本段Separately，these three types of dangers are not a great cause for worry．Taken together，though，the probability of disaster is extremely high．如果把這三種危險(xiǎn)合在一起，那么就很危險(xiǎn)了，也就是說(shuō)核材料本身就是十分危險(xiǎn)的．故選A．
58題答案是C．主旨大意題．文章主要講述了核能的危險(xiǎn)性．故選C．

點(diǎn)評(píng) 這是一篇關(guān)于核能的危險(xiǎn)性的閱讀題．題目設(shè)計(jì)推理判斷題．要在抓住關(guān)鍵句子的基礎(chǔ)上合理地分析才能得出正確答案；考查文章大意的題需要對(duì)文章大意有清晰的理解才能得出正確答案，切記胡亂猜測(cè)，一定要做到有理有據(jù)．

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Doctor Albert Reece，vice president of medical affairs at the University of Maryland，said，"T．gondii infection is a major public health problem around the world，and many people don't realize they're infected．
"Dr Postolache is a leading expert on suicide neuroimmunology（神經(jīng)免疫學(xué)）．Suicide is a critically important mental health issue．About one million people commit suicide and another 10million attempt suicide worldwide each year．We hope that this type of research will one day help us find ways to save many lives that now end too early in suicide．"
Dr．Postolache's research team at the University of Maryland was the first to report a connection between T．gondii and suicidal behavior in 2009．He is cooperating with researchers in Denmark，Germany and Sweden to confirm and investigate the way leading to this association．
The T．gondii parasite thrives in the intestines of cats，and it is spread through their waste．All warm-blooded animals can become infected through contact with it．Humans can become infected by changing their infected cats'litter boxes，eating unwashed vegetables，drinking water from a polluted source，or by eating undercooked or raw meat．
Not washing kitchen knives after preparing raw meat before handling another food item also can lead to infection．Pregnant women can pass the parasite directly to their unborn babies and are advised not to change cat litter boxes to avoid possible infection．
Babies don't produce antibodies to T．gondii for three months after they are born，so the antibodies present in their blood represented infection in the mothers．The scientists studied Danish health patients to determine if any of these women later attempted suicide，including cases of violent suicide attempts which may have involved guns，sharp instruments and jumping from high places．
The study found that women infected with T．gondii were one and a half times more likely to attempt suicide compared to those who were not infected，and the risk seemed to rise with increasing levels of the T．gondii antibodies．
Dr Postolache noted limitations to the study，such as the inability to determine the cause of the suicidal behavior．
The findings were published online in the Archives of General Psychiatry．
50．The objects of the research are women fromA．
A．Demark B．the USA C．Germany D．Sweden
51．The common way which is more likely to be infected with the disease isB．
A．to eat unwashed vegetables or undercooked meat
B．to clean a place where a cat once lived for a time
C．to pass the infection to her unborn baby during a woman's pregnancy
D．to reuse kitchen tools which have been used to cut raw meat
52．What is the consequence if a woman is infected with the parasite in the passage？B
A．Having a high fever．
B．Doing deliberate self-harm．
C．Keeping a depressed mood．
D．Becoming bad tempered．
53．What can be inferred from the passage？C
A．Women have a higher risk to be infected by the parasite than men．
B．The result of the research may help the scientists to find ways to stop suicide in advance．
C．The scientists will continue their research into the possible connection．
D．The risk of being infected seems to rise with the decreasing levels of the antibodies．
54．Which of the following statements would probably be the best title of the passage？D
A．Why are women more likely to commit suicide？
B．Women should keep away from cats．
C．Ways found to deal with women's mental problems．
D．Are women who own cats at a suicide risk？

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