单选题 Scientists around the world are racing to learn how to rapidly diagnose, treat and stop the spread of a new, deadly disease. SARS — Severe Acute Respiratory Syndrome — was (1) for the first time in February 2003 in Hanoi, (2) since then has infected more than 1,600 people in 15 countries, killing 63. At this (3) , there are more questions than answers surrounding the disease.
Symptoms start (4) a fever over 100.4 degrees F, chills, headache or body (5) . Within a week, the patient has a dry cough, which might (6) to shortness of breath. In 10% to 200% of cases, patients require (7) ventilation to breathe. About 3.5% die from the disease. Symptoms (8) begin in two to seven days, but some reports suggest it (9) take as long as 10 days. Scientists are close to (10) a lab test to diagnose SARS. In the meantime, it is diagnosed by its symptoms. There is no evidence (11) antibiotics or anti-viral medicines help, (12) doctors can offer only supportive care. Patients with SARS are kept in isolation to reduce the risk of (13) . Scientists aren’t sure yet, but some researchers think it’s a (14) discovered coronavirus, the family of viruses that cause some common colds.
Most cases appear to have been passed (15) droplets expelled when infected patients cough or sneeze. Family members of infected people and medical workers who care for them have been most likely to (16) the illness. But recent developments in Hong Kong suggest that the (17) might spread through air, or that the virus might (18) for two to three hours on doorknobs or other (19) Health experts say it is (20) , though, that sharing an elevator briefly with an infected person would be enough to pass the virus.

单选题 [A] detected [B] caught [C] disclosed [D] revealed

【正确答案】 A

【答案解析】[解析] 语义衔接题。根据上文可知，所填词是用来说明一种疾病——SARS的，再由下文的for the first time可知，这种疾病是首次被发现，故选[A]detected可以表示“发觉，查出”。[B]caught表示“患病”，此处并没有提到具体的人患病，所以不符文意；而[C]disclosed和[D]revealed都表示“公开，透露(内幕)”。
[点拨] 选项意思相近时，注意从搭配是否得当做出选择，disclose与reveal 显然不能与具体的疾病名称搭配，故被排除。

单选题 [A] but [B] and [C] or [D] yet

单选题 [A] time [B] point [C] aspect [D] instance

【正确答案】 B

【答案解析】[解析] 惯用衔接题。首先可以排除[A]，因为之前并没有发生过类似的事情，所以不用强调说at this time“这一次”；[D]instance也排除，因为没有at this instance这种用法。文章大意是“这一点，围绕着这一疾病，问题比答案要多”。[B]point表示“这一点”，可指代整个事件；而[C]aspect只表示事物的某一方面。因此，[B]更合适。

单选题 [A] from [B] over [C] upon [D] with

【正确答案】 D

【答案解析】[解析] 语义衔接题。start from“从…着手”；start upon“开始做某事，着手处理…”；start wit“以…开始”。start不与over连用。根据本句的句意，疾病是以发烧的症状开始的。因此，答案为[D]with。
[点拨] 同一动词的短语往往会很多，比如题中的start，因此平时注意多积累这短语。

单选题 [A] hurt [B] sore [C] aches [D] feelings

【正确答案】 C

【答案解析】[解析] 语义衔接题。本题所填词语需要与前面的fever, chills, headache相照应；且必须和空前的body搭配，表示患病后的身体症状。观察选项，首先排除[D]，因为body feelings不是患病后的症状，而[A]hurt、[B] sore不能与body连用。因此[C]为本题答案，body aches“身体疼痛，全身酸痛”的确为非典的症状。
[点拨] 上下义复现照应是解答完形填空题常用的技巧，如本题就利用了Symptoms与body aches等的上下义关系。

单选题 [A] process [B] advance [C] progress [D] convert

【正确答案】 C

【答案解析】[解析] 语义衔接题。观察上下文，上文的a dry cough与下文的shortness of breath在表示疾病的程度上，有明显的先后关系。根据常识，由干咳到呼吸短促，是疾病恶化的一个症状。那么，现在需要的，就是一个能表示“恶化”意思的词。选项中，[B]advance“发展，向前”和[C]progress“发展，进步”可以表示“发展”。而[B]advance多表示“进步”，属于积极意义，疾病恶化显然不能用advance来说明，故只能选[C]progress。
[点拨] progress有good progress“形势转好”和bad progress“形势恶化”之分，本题显然属于后者。

单选题 [A] automatic [B] artificial [C] mechanical [D] controlled

【正确答案】 C

【答案解析】[解析] 语义衔接题。本题所在句子大意是“病人需要辅助进行呼吸”。而[B]artificial“人工的，手工制作的”多指通过人工劳动来完成的产品。联想到医院里为病人提供的辅助呼吸的设施，不难发现，[C]mechanical“机械的，有机械辅助的”最为合适。[A]automatic“自动的”和[D]controlled“被控制的”，均不合文意。

单选题 [A] regularly [B] ordinarily [C] traditionally [D] generally

【正确答案】 D

【答案解析】[解析] 语义衔接题。由下文中的but some reports可以推测，前文所填的词应该与some相对应。some表示一些特殊情况，那么前面的词就该是表示一般情况的。因为[D]generally“通常地”为本题答案。排除[A] regularly“习惯地”、[B]ordinarily“平常地”和[C]traditionally“传统意义上地”。

单选题 [A] will [B] might [C] should [D] must

单选题 [A] cultivating [B] fostering [C] developing [D] designing

【正确答案】 C

【答案解析】[解析] 语义衔接题。根据a lab test to diagnose SARS可知，科学家们是想出了一种来诊断SARS的实验室测试。由文义可知，SARS是一种突发病，所以之前不可能有诊断SARS的实验，所以[A]cultivating“精心培育”和[B]fostering“培养”都不可能，因为只有在原来已存在的基础上，才可能再去培育或培养。那么，只有[C] developing“发展，制定”最符合文意。[D]designing虽然有“设计，制定”之意，但是多表示对工业品或图案的设计。因此答案为[C]。
[点拨] cultivate后面的宾语多为attitude, garden, plant, image, relationship, species等；foster则可与attitude, child, culture, development, growth, illusion, relationship, spirit 搭配；develop的搭配词有approach，business, habit, idea, model, program technique, theory等。

单选题 [A] which [B] that [C] whether [D] what

【正确答案】 B

【答案解析】[解析] 结构衔接题。观察本题所在句可以发现，所需要填写的是一个关联词，来表示evidence与后面内容之间的关系。很明显，后面内容是对evidence的解释说明，二者之间为同位关系，需要用一个连接词that。所以选[B]。
[点拨] evidence, idea, fact, belief, news, thought, possibility, hope, report 等名词后面出现的从句多为同位语从句，引导词用that，平时学习中注意积累这些语法知识。

单选题 [A] so [B] but [C] still [D] yet

单选题 [A] communication [B] transportation [C] transformation [D] transmission

单选题 [A] lately [B] newborn [C] newly [D] renewed

单选题 [A] under [B] through [C] beneath [D] from

【正确答案】 B

【答案解析】[解析] 语义衔接题。由passed和下文中的when infected patients cough or sneeze可以知道，本题需要选择一个表示疾病传染的介词，只有[B]through“通过”最合适。[A]under“在…下面”、[C]beneath“在…之下”和 [D]from“从…”都不合文意。
[点拨] 在第17题后的spread though air 与本题前后照应，through前后复现。注意得用复现关系解题。

单选题 [A] acquire [B] receive [C] obtain [D] contract

单选题 [A] ailment [B] ill-health [C] disease [D] infection

单选题 [A] continue [B] linger [C] delay [D] persist

【正确答案】 B

【答案解析】[解析] 语义衔接题。通读上下文和选项可知，本句大意为“病毒可在门拉手或类似物上存留2～3个小时”。表示“存留”的词只有[B]linger“继续存留”和[D]persist“持续”。一般情况下，persist表示较长时间的持续。2～3个小时的存留，用linger更合适。

单选题 [A] exteriors [B] outside [C] surfaces [D] coverings

【正确答案】 C

【答案解析】[解析] 语义衔接题。本题所填写的词与doorknob对应。根据常识可知，病毒停留在物体表面，人们通过接触而传染。[A]exteriors“外貌，外表”、[B]outside“…的外面”、[C]surfaces“表面”、[D]coverings“遮盖物，掩蔽物”。很明显，只有[C]surfaces最合适。所以本题答案为[C]。

单选题 [A] probably [B] obviously [C] unlikely [D] clearly

【正确答案】 C

【答案解析】[解析] 逻辑衔接题。注意空格所在句的衔接词though表示前后有让步关系，上一句说明病毒停留在物体表面，人们通过接触而传染，既然是让步关系，那么本句要表达的意思是与患者同乘一电梯就会传染病毒还不太可能，所以选[C]。若选其他三项，则不符合上下文的逻辑关系。