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2009年职称英语教材完型填空新增部分(理工类)

2009-06-23来源:和谐英语

  答案与解析:

  1.A人们通常在手机中储存人名和他们的电话号码。所以A是最佳选择。虽然手机中也能储存音乐和秘密信息,相比之下,不如A合理。至于储存电影片子,就有点离谱了。

  2.C这个句子的意思是:DNA是一种存在于每一细胞中的基因物质。根据这一理解,选项A、B、D均不能选作答案。

  3.B上文的意思是:如同指纹,你的DNA是独一无二的。因此,此处必须选择unless,其他选择均不符合句义,也违背了我们对DNA的基本常识。 4.D leave behind是固定搭配,意即:留下。此处leave使用的是过去分词形式。

  5.A根据上下文的理解,研究结果是用来帮助侦探识别罪犯和受害人的,8、c、D都不能表

  达这一层意思。

  6.D句子中的more提供了选择的线索,more…than的搭配最能完成该句的意思。

  7.A定冠词the说明该选项所指内容在前面已经提到,即cell phone。除了device,其他选项均不能指代cell phone。

  8.B 四个选项中只有B是正确选择。s0连接了其前后两个句子,使其形成因果关系:她思考微量DNA是否会停留在手机上,所以,她与同事们一起对10名志愿者的翻盖手机进行了分析研究。A、C、D表示的都是转折的意义关系。

  9.A句子当中的paces指的是DNA traces(微量DNA),而DNA paces是肉眼看不到的,所

  以选择invisible。

  10.D研究者从手机的两部分收集手机微量DNA:一是手机外壳,二是喇叭。贴在耳朵上的

  不可能是card、screen和keys。

  11.A be made of是固定搭配,意即:由…制成。a solution made mostly of alcohol:一种主要由酒精制成的溶液。

  12.B根据上下文的理解,应该选择back:手机拥有者拿回了手机,再使用一个星期。

  13.B 该句要表达的意思应该是:科学家在每一个手机上发现了属于手机拥有者的DNA。

  belong t0是固定搭配,意思是:属于。A不符合句义,c和D不符合语法。

  14.B最后一段的第一和第二句告诉我们手机经过清洗后仍然有微量DNA出现。所以这里

  要用surprisingly这个副词,表示令人惊讶。

  15.D根据上下文的理解,应该选择D,其它三个选项与句子的意思不符。

  Sharks Perform a Service for Earth's Waters

  It is hard to get people to think of sharks as anything but a deadly enemy1. They are thought to  1  people frequently. But these fish2 perform a  2  service for earth's waters and for human beings. Yet business and sport fishing3 are threatening their  3  Some sharks are at risk of disappearing from 4

  Warm weather may influence both fish and shark activity. Many fish swim near coastal areas  5  their warm waters. Experts say sharks may follow the fish into the same areas, 6  people also swim. In fact, most sharks do not purposely charge at or bite humans. They are thought to mistake a person  7  a sea animal, such as a seal or sea lion. That is why people should not swim in the ocean when the sun goes down or comes up. Those are the  8  when sharks are looking for food. Experts also say that bright colors and shiny jewelry

  may cause sharks to attack.

  A shark has an extremely good sense of smell4' It can find small amounts of substances in water, such as blood, body liquids and  9  produced by animals. These powerful  10  help sharks fred their food. Sharks eat fish, any  11 sharks, and plants that live in the ocean.

  Medical researchers want to learn more about the shark's body defense, and immune  12  against disease. Researchers know that sharks  13  quickly from injuries. They study the shark in hopes of finding a way to fight human disease.

  Sharks are important for the world's  14  They eat injured and diseased fish. Their hunting activities mean that the numbers of other fish in ocean waters do not become too  15  This protects the plants and other forms of life that exist in the oceans.

  词汇:

  purposely adv.故意地,蓄意地 immune adj.免疫的

  charge v.(向……)冲(过去) jewelry n.珠宝

  seal n. 海豹