Question

【题目】阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Dogs were first raised at home at least 150 centuries ago. Since then, the dog 【1】(be) humans’ best friend. Now, they have another job—to help doctors to diagnose（诊断）cancer.

After a long-standing research of smell, a Finnish professor has said that certain 【2】(type) of cancer are able to be discovered by their smell, 【3】(make) it possible to train cancer-sniffing dogs to help diagnose the disease.

A professor, JoukoVepsalainen from the University of Eastern Finland in Kuopio, has focused on nitrogen compounds（氮化合物）. The compounds increase 【4】 (great) when cancer cells grow in an uncontrollable way, allowing them 【5】(find) out, the Finnish newspaper Karjalainen reported. That’s where the dog, man’s best friend, may step in with their sharp sense of smell.

According 【6】 the news agency, researchers in Finland have tried to train dogs to do the job, but 【7】 will take a dog months, even years, to tell the 【8】(different) between sick and healthy people. “Anyone 【9】knows how difficult early cancer detection(察觉) is understands what 【10】good opportunity this is,” associate professor Anna Hielm-Bjorkman of the University of Helsinki told the Finnish media.

Answer 1

【答案】

【1】has been

【2】types

【3】making

【4】greatly

【5】to be found

【6】to

【7】it

【8】difference/ differences

【9】who

【10】a

【解析】

这是一篇说明文。文章主要介绍了某种癌症可以通过气味来检测，这使得训练嗅癌犬帮助诊断癌症成为了可能。

【1】

考查时态。结合上文出现“since then”可知，该句应使用现在完成时，主语为“the dog”是单数第三人称形式，故填has been。

【2】

考查名词的数。分析该句可知“certain ___2___(type) of cancer”为从句的主语，其后谓语为“are”，推出该句主语应该为复数形式，故填types。

【3】

考查非谓语动词。此处非谓语动词作状语，make与其逻辑主语“certain ___2___(type) of cancer ”构成主谓关系，故用现在分词形式。故填making。

【4】

考查副词。此处使用副词greatly来修饰其前动词increase。故填greatly。

【5】

考查不定式。结合短语allow… to do sth译为“允许……做”可知此处填不定式，同时，find out与逻辑主语“them”之间构成被动语态，故用不定式的被动形式，故填to be found。

【6】

考查固定搭配。此处考查according to译为“根据”，为固定短语。故填to。

【7】

考查it用法。此处考查it takes sb time to do sth译为“花费某人多长时间去做某事”，该句中不定式为真正的主语，而it为形式主语。故填it。

【8】

考查名词。此处应填名词作tell的宾语，故将different(adj)变成其名词形式difference，结合语境，此处可以特指一个或多个不同。故填difference\differences。

【9】

考查定语从句。分析该句为定语从句，其先行词为anyone，在从句中做主语，故用关系代词who来引导。故填who。

【10】

考查不定冠词。句意：任何知道早期癌症检测有多么困难的人都知道这是一个多么好的机会。该句为what引导的感叹句结构：what+不定冠词+形容词+单数名词+主+谓，本句中不定冠词后为good opportunity，故使用不定冠词“a”，故填a。