2022年职称英语考试《理工类》考试共65题，分为单选题和多选题和判断题和计算题和简答题和不定项。小编每天为您准备了5道每日一练题目（附答案解析），一步一步陪你备考，每一次练习的成功，都会淋漓尽致的反映在分数上。一起加油前行。

1、Cell Phone Lets Your Secret OutYour cell phone holds secrets about you. Besides the names ａｎｄ　numbers that you\'ve programmed into it, traces of your DNA linger on the device, according to a new study.DNA is genetic material that appears in every cell. Like your fingerprint, your DNA is unique to you- because you have an identical twin. Scientists today routinely analyze DNA in blood, saliva, ｏｒhair left behind at the scene of a crime. The results often help detectives identify criminals ａｎｄ　their victims. Your cell phone can reveal more about you than you might think.Meghan J. McFadden, a scientist at McMaster University in Hamilton, Ontario, heard about a crime in which the suspect bled onto a cell phone ａｎｄ　later dropped the device. This made her wonder whether traces of DNA lingered on cell phones even when no blood was involved. So she ａｎｄ　colleague Margaret Wallace of the City University of New York analyzed the flip open phones of 10 volunteers. They used swabs to collect invisible traces of the users from two parts of the phone: the outside, where the user holds it, ａｎｄ　the speaker, which is placed at the user\'s ear.The scientists scrubbed the phones using a solution made mostly of alcohol. The aim of washing was to remove all detectable traces of DNA. The owners got their phones back fｏｒanother week. Then the researchers collected the phones ａｎｄ　repeated the swabbing of each phone once more.The scientists discovered DNA that ______ to the phone\'s speaker on each of the phones. Better samples were collected from the outside of each phone, those swabs also picked up DNA that belonged to other people who had apparently also handled the phone. Surprisingly, DNA showed up even in swabs that were taken immediately after the phones were scrubbed. That suggests that washing won\'t remove all traces of evidence from a criminal\'s device. So cell phones can now be added to the list of clues that can clinch a crime scene investigation.【单选题】

A.was given

B.belonged

C.was owned

D.became

正确答案:B

答案解析: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 to是固定搭配，意思是：属于。A不符合句义，C和D不符合语法。

2、The most crucial problem any economic system faces is how to use its scarce resources. 【单选题】

A.puzzling

B.difficult

C.terrifying

D.urgent

正确答案:D

答案解析:crucial：至关紧要的，和urgent（紧急的）含义最接近；puzzling:（使）迷惑的、（使）为难的；difficult:困难的；terrifying:使感到恐怖的。

3、Storms Sink ShipsRescuers have found the bodies of over 130 people killed in two ferry disasters in Bangladesh. The accidents happened during a storm that hit the country on April 21. Hundreds more are missing ｏｒfeared dead. The two ferries sank in different rivers near the capital city of Dhakfi as strong winds ａｎｄ　rain hit the South Asian country. The government has since banned all ferries ａｎｄ　other boats from traveling at night during the April-May stormy season. One of the ferries, MV Mitali, was carrying far more people than it was supposed to. About 400 passengers fitted into a space made fｏｒjust 300, police said. The second ferry carried about 100 passengers. "The number of deaths is certain to rise." said an official in charge of the rescue work. "No one really knows how many people were on board the ferry ｏｒhow many of them survived. Ferries in Bangladesh don\'t always keep passenger lists, making it difficult to determine the exact number of people on board. Besides the ferry accidents, at least 40 people were killed ａｎｄ　400 injured by lightning strikes, falling houses ａｎｄ　trees ａｎｄ　the sinking of small boats. Storms are common this time of year in Bangladesh, as are boating accidents. Ferry disasters take away hundreds of lives every year in a nation of 130 million people. Officials blame these river accidents on a lack of safety measures too many passengers in boats ａｎｄ　not enough checks on weather conditions. Ferries are a common means of transport in Bangladesh. It is a country covered by about 230 rivers. Some 20,000 ferries use the nation\'s Waterways every year. ａｎｄ　many of them are dangerously overcrowded. Since 1977, more than 3,000 people have died in some 260 boating accidents.The two ferry disasters occurred____. 【单选题】

A.at noon.

B.in the morning.

C.at night.

D.In the aftemoon.

正确答案:C

答案解析:文章中没有一个句子直接地提供了这方面的信息。但是第3段间接地传递了这方面的信息：政府自此后禁止所有的渡船和其他船只在四五月的暴风季节夜航。

4、Houses of the FutureWhat will houses be like in thirty years\' time? No one really knows, but architects are trying to predict. What will our home be like then?Future houses will have to be flexible. In thirty years\' time even more of us will be working from home. So we will have to be able to use areas of the house fｏｒwork fｏｒpart of the day ａｎｄ　fｏｒliving fｏｒthe rest. Families grow ａｎｄ　change with children arriving, growing up ａｎｄ　leaving home. The house of the future will have to grow ａｎｄ　change with the family. Nothing will be as fixed as it is now. The house will always be changing to meet changing needs.Everyone agrees that in thirty years\' time we will be living in "intelligent" houses. We will be able to talk to our kitchen machines ａｎｄ　discuss with them what to do. Like this, "We\'ll be having a party this weekend. What food shall we cook?" ａｎｄ　the machine will tell us what food we will have to buy ａｎｄ　how to cook it. We will be able to leave most of the cooking to the machines, just tasting things from time to time to check.The house of the future will be personal, each house will be different. You will be able to change the colｏｒof the wall easily.You won\'t have to paint them-you\'ll be able to tell the wall to change the color! ａｎｄ　if you don\'t like the colｏｒthe next day, you will be able to have a new one. _____!【单选题】

A.You will be able to change the colｏｒof the wall easily.

B.The only thing you won\'t be able to do is move the house somewhere else!

C.ａｎｄ　the machine will tell us what food we will have to buy ａｎｄ　how to cook it.

D.What will our home be like then?

E.The house of the future will have to grow ａｎｄ　change with the family.

F.The kids might take their bedrooms with them as they leave.

正确答案:B

答案解析:本题有一定难度，可用排除法和代入法。本题的上文谈到了你对房子颜色所能做的事情，本题是全段结尾，各种表述可能都有，所以可用排除法和代入法。A，C，D，E都被使用可排除，把B，F代入到文章里，可以确定B是正确答案。

5、One Good Reason to Let Smallpox LiveIt\'s now a fair bet that we will never see the total extinction (灭绝) of the smallpox (天花) virus. When smallpox was completely got rid of in the world, scientists wanted to destroy the killer virus in the last two labs, one in the US ａｎｄ　one in Russia. They asked: If smallpox has truly gone from the planet, what point was there in keeping these reserves?In reality, of course, it was naive to imagine that everyone would let go of such a powerful potential weapon. Undoubtedly several nations still have _____ vials (小药瓶). ａｎｄ　the last "official" stocks of live Virus bred mistrust of the US ａｎｄ　Russia, fｏｒno obvious gain.Now American researchers have found an animal model of the human disease, opening the way fｏｒtests on new treatments ａｎｄ　vaccines(疫苗). So once again there\'s a good reason to the virus, just in keep the disease puts in a reappearance.How do we case with the mistrust of the US ａｎｄ　Russia? deal. Keep the virus Simple international support in a well - guarded UN laboratory that\'s open to all countries. The US will object, of course, just as it with a multilateral (多边的) approach to just about everything. But it doesn\'t mean the idea is rejects. If the virus is useful, then let\'s wrong it the servant of all humanity make not just a part of it.【单选题】

A.more

B.few

C.a few

D.a lot

正确答案:C

答案解析:本题有一定难度，本题可用排除法，文章里没有出现比较的含义，所以more可以排除掉，a lot后面不能接名词，不能说a lot vials，所以也可以排除掉，依据上下文逻辑，文章此处是说“毫无疑问，几个国家仍有几瓶（病毒）”，此处要用“几个”的意思，只能用a few，答案是C。