2025年职称英语考试《综合类》考试共65题，分为单选题。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、A Carrot a Day Keeps Cancer AwayAmong all the malignancies, lung cancer is the biggest killer: more than 100,000 Americans a year die of the disease. Giving up smoking is one of obvious way to reduce the risk, but another answer may lie in the kitchen. According to a new report, even heavy smokers may be protected from developing lung cancer by a simple dietary measure: a daily portion of carrots, spinach ｏｒany other vegetable ｏｒfruit containing a form of vitamin A called carotene.The finding, published in the British medical journal The Lancet, is part of a long-range investigation of diet ａｎｄ　disease. Since 1957 a team of American researchers has monitored the dietary habits ａｎｄ　medical histories of 2,000 middle-aged men employed by the Western Electric Co. in Chicago. Led by Dr. Richard Shelelle of Chicago\'s Rush-Presbyterian, St. Luke\'s Medical Center, the researchers recently began to sort out the links between the subjects\' dietary patterns ａｎｄ　cancer. Other studies of animals ａｎｄ　humans have suggested that vitamin A offers some protection against lung cancer. The correlation seemed logical, since vitamin A is essential fｏｒthe growth of the epithelial (上皮的) tissue that lines the airways of the lungs.Vegetables: But the earlier research did not distinguish between two different forms of the vitamin. "Preformed" vitamin A, known as retinol, is found mainly in liver ａｎｄ　dairy products like milk, cheese, butter ａｎｄ　eggs. But vitamin A is also made in the body from carotene, which is abundant in a variety of vegetables ａｎｄ　fruits, including carrots, spinach, squash, tomatoes, sweet potatoes ａｎｄ　apples.In the Western Electric study, Shekelle ａｎｄ　his colleagues found little correlation between the incidence of lung cancer ａｎｄ　the consumption of foods containing preformed vitamin A, but when they examined the data on carotene intake, they discovered a significant relationship. Among the488 men who had the lowest level of carotene consumption, there were fourteen cases of lung cancer, in aｇｒｏｕｐof the same size that ate the most carotene, only two cases developed. The apparent protective effect of carotene held up even fｏｒlongtime smokers but to a lesser degree.Further studies will be necessary before the link between lung cancer ａｎｄ　carotene can be firmly established. In the meantime, researchers warn against taking large numbers of vitamin A pills, because the tablets contain a form of the chemical that can be extremely toxic in high doses. Instead, they advise a well-balance diet that includes foods rich in carotene. Fｏｒa smoker, a half-cup of carrots every day might possibly make the difference between life ａｎｄ　death.Where is carotene present?【单选题】

A.tomatoes

B.carrots

C.squash

D.all of the above

正确答案:D

答案解析:根据第3段，“维生素A在体内的产生源于胡萝卜素，胡萝卜素在蔬菜、水果中大量存在，包括胡萝卜、菠菜、西葫芦、西红柿和苹果”。因此答案是D。

2、The great change of the city astonished all the visitors.【单选题】

A.surprised

B.scared

C.excited

D.moved

正确答案:A

答案解析:这座城市发生的大变化使所有的参观者惊讶。本题难度不大，干扰项干扰不强。astonished和surprised都可指“吃惊的”，B项指“使惊吓”，最佳答案是A。

3、Britain\'s Solo SailorEllen MacArthur started sailing when she was eight, going out on sailing trips with her aunt. She loved it so much that she saved her money fｏｒthree years to buy her first small sailing boat. When she was 18, she sailed alone around Britain ａｎｄ　won the "Young Sailｏｒof the Year" award.Ellen became famous in 2001. Aged only 24, she was one of the only two women who entered the Vendee Globe round the world solo race, which lasts 100 days. Despite of many problems, she came the second in the race out of 24 competitors ａｎｄ　she was given a very warm welcome when she returned.Ambition ａｎｄ　determination have always been a big part of Ellen\'s personality. When she was younger, she lived in a kind of hut (棚屋) fｏｒthree years while she was trying to get sponsorship to compete in a transatlantic race. Then she took a one - way ticket to France, bought a tiny seven meter Class Mini yacht (游艇), slept under it while she was repairing it, ａｎｄ　then she raced it 4,000 kilometres across the Atlantic in 1997, alone fｏｒ33 days.Ellen has to learn many things, because sailing single - handed means that she has to be her own captain, electrician, sailmaker, engineer, doctor, journalist, cameraman ａｎｄ　cooker, She also has to be very fit, ａｎｄ　because of the dangers of sleeping fｏｒlong periods of time she\'s in the middle of the ocean, she has trained herself to sleep fｏｒabout 20 minutes at a time.ａｎｄ　she needs courage. Once, in the middle of the ocean, she had to climb the mast (桅杆) of a boat to repair the sails at four o\'clock in the morning, with 100 kph winds blowing around her. It took her many hours to make the repairs, Ellen says: "I was exhausted when came down. It\'s hard to describe how it feels to be up there. It\'s like trying to hold onto a big pole, which fｏｒme is just too big to get my arms around, with someone kicking you all the time ａｎｄ　trying to shake you off".But in her diary, Ellen also describes moments which is worthwhile (值得的) :"A beautiful sunrise started the day, with black clouds slowly lit by the bright yellow sun. I have a very strong feeling of pleasure, being out here on the ocean ａｎｄ　having the chance to live this. I just feel lucky to be here."The word "solo" in the title could be best replaced by ____. 【单选题】

A.single - handed

B.self - made

C.one performer

D.self - starter

正确答案:A

答案解析:本题是词义题，难度不大，考查的是基本意义，不需要查询引申意义。此外，文中第四段开头，because sailing single - handed means ……“Ellen必须学会许多事情，因为单独航行意味着……”A复制了文章原话，是答案。

4、Woman workThough some people have suggested that women should return to housework in ｏｒｃｅｒto leave ____ jobs fｏｒmen, the idea has been rejected by both women ａｎｄ　men in public opinion polls.Lately some ｕｎｉｏｎofficials have suggested that too many women are employed in types of work more suitable fｏｒmen ａｎｄ　that women should step aside to make way fｏｒunemployed young men. They argue that women, especially women in their childbearing years,actually delay economic development ａｎｄ　result in productivity, poｏｒquality ａｎｄ　inefficiency.To solve the problem, they suggested that working women stay at home while their husbands ｏｒbrothers were given double wages. They argue that under these circumstances, families would remain their same level of income, ａｎｄ　women could run the house ａｎｄ　raise children much better,The suggestion, however , has been flatly rejected by 9 0ut of 10 people polled .Some other people have suggested another way called "phased employment" theory. The theory suggests that a woman worker take leave from her job when she is seven months pregnant ａｎｄ　stay off the job until her baby reaches the age of 3. It suggested that women on leave receive 75 percent of their normal salary ａｎｄ　be allowed to return to work after the three-year period. This will benefit children, women, their families ａｎｄ　the society ａｎｄ　it definitely seems to be more acceptable than the suggestion that women return to their homes forever.【单选题】

A.more

B.fewer

C.much

D.less

正确答案:A

答案解析: job是可数名词，因此要排除C和D，根据上文“建议女人回家做家务”，会给男人留下更多的工作，因此排除B。

5、Sleeping GiantRight now, an eruption is brewing in Yellowstone National Park. Sometime during the next two hours, the park\'s most famous geyser, Old Faithful, will begin gurgling boiling water ａｎｄ　steam. Then, an enormous fountain will shoot high into the air .Old Faithful is not only a spectacular sight; it\'s also a constant reminder that Yellowstone sits on one of the largest volcanoes in the world. If you\'ve never heard of Yellowstone\'s volcano, you\'re not alone. The volcano is so inconspicuous(不显眼的) that few people know it exists. Yet it has erupted three times during the last 2 million years. ａｎｄ　one of those eruptions spewed enough volcanic ash ａｎｄ　other debris to blanket half the United States.Yellowstone\'s volcano is sometimes called a "super volcano," ｏｒextremely large ａｎｄ　explosive caldera volcano. Three calderas make up more than a third of Yellowstone National Park. This super volcano formed over a hot spot, an extremely hot area in Earth\'s mantle. John Valley, volcano professor, said that as the crust moves across a hot spot, the hot spot melts a. section of the plate moving over it, forming "one volcano after another. "The Yellowstone hot spot melts thick continental crust, which may cause catastrophic eruptions. According to experts the eruptions that created each of the three calderas in ａｎｄ　around Yellowstone National Park were larger than any other volcanic eruption in recorded history. The most recent eruption, which happened 640,000 years ago, produced at least l,000 cubic kilometers of ash ａｎｄ　debris, which blanketed most of the western half of the United States. The first Yellowstone eruption, 2 million years ago, released more than double that amount of ash ａｎｄ　debris.Geological evidence shows Yellowstone has blown its stack every 700,000 years ｏｒso. "If nature were truly that regular ａｎｄ　reliable, we would be clue fｏｒanother eruption soon," said Valley. "However, these processes are subject to variability, so we don\'t really know when the next eruption will happen. "_____. It is the volcanic energy that powers the geysers ａｎｄ　hot springs, creates the mountains ａｎｄ　canyons, ａｎｄ　generates the unique ecosystems that support Yellowstone\'s diverse wildlife.【单选题】

A.Three calderas make up more than a third of Yellowstone National Park.

B.The first Yellowstone eruption, 2 million years ago, released more than double that amount of ash ａｎｄ　debris.

C.The volcano is so inconspicuous(不显眼的) that few people know it exists.

D.Then, an enormous fountain will shoot high into the air.

E.While the active geologist processes at Yellowstone do pose some risk to tire public, they also make it a unique treasure.

F.Yellowstone National Park attracts the interest of geologists the world over.

正确答案:E

答案解析:第50题所在段的前面两段介绍了黄石公园火山以前喷发时的可怕情景。第50题所在段也叙述了火山能量带来的好处。这是两种情景截然相反的描写，中间很可能有一句过渡句，把它们连接起来。选项E就是过渡句，应该是本题的答案。