陕西省榆林市2020-2022届（三年）高三三模英语试题汇编：阅读理解（含答案）

陕西省榆林市
2020-2022届（三年）高三三模英语试题分类汇编
阅读理解
陕西省榆林市2022届高三三模英语试卷
第一节（共15小题；每小题2分，满分30分）
阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。
A
The Comfortable Kitchen: 105 Laid-Back, Healthy, and Wholesome Recipes
Here are healthy meals the whole family can enjoy, night after night.
What does comfort mean in The Comfortable Kitchen For Alex Snodgrass, New York Times best-selling author of The Defined Dish, bringing her family around the table to share a home-cooked meal is a favorite way to show love. Her recipes are designed to bring joy into that display of affection, from your own comfort cooking for your loved ones' delight at the delicious flavors, to knowing that you are caring for your family 's nutrition with each bite.
There are plenty of recipes with simple, flexible ingredients for a meal when desired — perfect for people who are enjoying their “food freedom” stage of their health journey. And for those who have diet restrictions, Alex clearly marks each recipe as gluten-free (无麸质), dairy-free and grain-free, as appropriate.
Alex brings back the joy of being in the kitchen for those at all levels of cooking skills and provides food for every occasion, with soups, salads, pasta, vegetarian and non-vegetarian, ranging from one-pot meals to not-so-junky junk food — and even cocktails and desserts — with recipes including:
▲Cajun Chicken and Wild Rice Soup
▲Green Curry Poached Halibut with Herbs
▲Texas Style Brisket Tacos
▲Herby Green Olive Pasta with Feta
▲Sheet Pan Honey Sesame Cauliflower
▲Clayton's Margarita
▲7-Ingredient Almond Butter Cookies
With 105 approachable and nutritious recipes for real, busy life, The Comfortable Kitchen is a must-have cookbook for those who care about what they eat and what they make.
21. What is The Comfortable Kitchen mainly about
A. Cooking. B. Affection.
C. Kitchen facilities. D. Family parties.
22. What can be learnt about The Comfortable Kitchen
A. It contains many recipes. B. It receives many complaints.
C. It can only be bought online. D. It is published by New York Times.
23. Who are most likely to be interested in the text
A. Environmentalists. B. Dieticians.
C. Businessmen. D. Publishers.
B
One morning I noticed a woman sitting alone at the bus stop. She seemed not to go to work hurriedly. She wasn't going anywhere as well. Was she waiting for the bus Did mall（商场）buses come this early when the stores wouldn't be open for hours I felt puzzled. As I drove by, I heard a voice say, "Give her a bottle of water."
"She looks like she is sleeping. Why would I wake her What is wrong with me What is so hard about doing the right thing It's just a bottle of water!"
So I drove by her again and again. Finally, I pulled my car into a parking zone, stepping out with a bottle of water in one hand and a twenty-dollar bill in the other. Each step seemed to fill me with purpose and focus. No words can describe what happened between us at that moment. I thought I was bringing her a cold drink, but instead I was bringing her a hope she needed. We sat together for a while as she talked. She had a sad story to tell, but she was no longer sad. Before we parted, I grabbed all the cash I had in my purse and found more water in my car along with some snacks. We stood at the bus stop hugging and said our goodbyes.
I still have a thousand questions as to why I struggled to act. Why did it take me many circles around the mall and an argument with myself I was once torn between helping her and ignoring her. All I know for sure is that while walking toward that woman at the bus stop, a miracle happened.
There are opportunities for us to love every day. Maybe our doubts keep us from acting. Maybe we don't want to take the risk or be uncomfortable. That day, I learned how love answers when asked and how love both gives and receives.
24. How did the author feel about the woman sitting alone in the beginning
A. Annoyed. B. Confused. C. Terrified. D. Amused.
25. Why did the author drive by the woman over and over again
A To observe the poor woman. B. To search for a parking space.
C. To evaluate whether to help her. D. To improve the terribly poor driving skills.
26. Which of the following can replace the underlined word "torn" in paragraph 4
A. ready to accept B. unable to decide C. glad to receive D. illegal to choose
27. What can we learn from the text
A. The wealth of life is action. B. Love breaks down racial barriers.
C. Actions speak louder than words. D. The best act to love is taking action.
C
Emerging (新兴的) economies struggled to grow through the 2010s and pessimism clouds them now. People wonder how they will pay debts piling up during the pandemic and how they can grow rapidly. The freshest answer to this problem is the fast-spreading digital revolution. The world’s largest emerging market has already demonstrated the enormous effects of digital technology. As China’s old industries have slowed sharply over the past decade, the booming technology industry has kept the economy growing steadily.
Now China’s emerging market peers are getting a push from the same digital engines. Since 2014, more than 10,000 tech firms have been launched in emerging markets—nearly half of them outside China. From Bangladesh to Egypt, it is easy to find entrepreneurs who worked for Facebook or other US giants before coming home to start their own companies.
How can it be that the emerging market countries are adopting common digital technologies faster than the richer countries One explanation is habit and its absence. In societies filled with stores and services, customers are often comfortable with the providers they have and slow to abandon them. In countries where people have difficulty even finding public facilities, a bank or a hospital, they will jump at the first digital option that comes along. Though only 5% of the Kenyans carry credit cards, more than 70% have access to digital banking.
The digital impact on productivity is visible on the ground. Many governments are moving services online to make them more transparent and less vulnerable to corruption, perhaps the most feared obstacle to doing business in the emerging world. Since 2010, the cost of starting a business has been steady in developed countries while falling sharply in emerging market countries, from 66% to just 27% of the average annual income. Entrepreneurs can now launch businesses affordably, organizing much of what they need on a smartphone.
The era of rapid digitization has only just begun. This offers many developing economies a revolutionary new path to catching up with the living standards of the developed world.
28. Which is a result of digital technology for China
A. Stabilizing its economy. B. Accumulating its debts.
C. Keeping its old industries booming. D. Letting its new industries slow sharply.
29. Why does the author mention Kenyans in paragraph 3
A. To show mature markets’ digital technologies.
B. To show rich nations unwillingly abandon what they own.
C. To show emerging markets accept digital options warmly.
D. To show poor nations have difficulty building public facilities.
30. What plays a key role in the boom of digital businesses in emerging markets
A. The steady annual income.
B. The low cost of launching businesses.
C. The simplified procedure of setting up a business.
D. The thorough removal of the most feared obstacle.
31. Which of the following is a suitable title for the text
A. Emerging Economies Are Seeking Their Fortune
B. The Digital Impact Is Huge on Global Productivity
C. Digital Technology Will Save Slow Emerging Markets
D. The Time of Rapid Digitization Is Around the Corner
D
A study led by Plana-Ripoll, a doctor at Aarhus University in Denmark, tries to deal with a fundamental question that has bothered researchers for more than a century—what exactly causes mental illness
In the hope of finding the answer, scientists have piled up a large amount of data over the past decade, through studies of genes and brain activity. They have found that many of the same genes underlie seemingly distinct disorders and that changes in the brain's decision-making systems could be involved in many conditions.
The researchers are also rethinking theories of how our brains go wrong. The idea that mental illness can be classified into distinct, separate categories like “anxiety” has been disproved to a large extent. Instead, recently they’ve found that disorders shade into each other, and there are no hard dividing lines.
The researchers are trying to understand the biology that underlies mental illness. They have a few theories. Perhaps there are several dimensions (维度) of mental illness, so depending on how a person scores on each dimension, they might be more likely to have some disorders than others. An alternative idea is that there is a single factor that makes people easier to suffer from mental illness in general. What disorder they develop is then determined by other factors. Both ideas are being taken seriously though the former one is more widely accepted by the researchers.
The details are still unclear, but most researchers agree that one thing is specific: The old system of categorizing mental disorders into neat boxes does not work. They are also hopeful that, in the long run, replacing this framework with one that is grounded in biology will lead to new drugs and treatments. The researchers aim to reveal, for instance, the key genes, brain regions and neurological processes involved in psychopathology (精神病理学), and target them with treatments. Although it might take a while to get there, they are long-term optimistic if the field really does its work.
32. What aspect of mental illness has been puzzling researchers according to the text
A. Its theories. B. Its symptoms. C. Its categories. D. Its roots.
33. What have the researchers found from the recent study
A. There exist links between mental disorders.
B. Brain function has little to do with mental illness.
C. Mental illness is classified into different categories.
D. Genes are completely different in distinct mental disorders.
34. Which one is more widely accepted by the researchers according to paragraph 4
A. The theory of genetic influences. B. The belief of brain abnormalities.
C. The concept of multiple dimensions. D. The idea of the determined risk factor.
35. What can we learn about mental illness from the text
A. Its genes are too complex to study.
B. Its new drugs can be available soon.
C. Researchers are clear about its details.
D. Seeking for its physiology might help.
陕西省榆林市2021届高三三模英语试卷
第一节(共15小题;每小题2分,满分30分)
阅读下列短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。
A
If you’ re after cheap UK train tickets, check the suggestions below and see how you could bag yourself a bargain. We' 11 even highlight the cheapest prices!
·Booking in advance
Train tickets in the UK usually go on sale 3 months before the date of travel. Look out for advance tickets, as these tend to be cheaper when they 're first released. Be quick though, as they may sell out on busier routes.
Find out more about our advance ticket alert tool.
·Traveling off-peak
When travelling by train in the UK, you can benefit from reduced fares by choosing the time periods of day that are less busy. When searching for tickets with us, we'll display all available tickets and options, highlighting the cheapest ones.
Learn more about off- peak train time from our website.
·Using the price prediction tool
Our clever little price prediction tool will predict the future and let you know when ticket prices are about to go up, meaning you’1l never miss out on the best value fares. Beat the rush and save on price too (Currently available in the UK app only).
Discover the magic of price prediction.
·Choosing the season ticket calculator
If you travel on the same route more than three times a week, then season tickets could help you to save both valuable time and money. Besides that, they're also available in a number of flexible options to suit different time frames.
Check out our season ticket calculator today to get started.
1. What is the feature of traveling off- peak by train in the UK
A. The trains are too crowded.
B. Train tickets are often sold out.
C. There are more passengers at this time.
D. The travel time periods are relatively unoccupied.
2. What can visitors do if they want to know when train fares will rise
A. Call ahead and ask.
B. Check the American app.
C. Refer to the price prediction tool.
D. Download the season ticket calculator.
3. What is the author’s main purpose in writing the text
A. To advertise train services.
B. To encourage passengers to travel abroad.
C. To help visitors spend less money on railway tickets.
D. To offer services to the train passengers on the way.
B
That youngsters were glued to online games on their smart phones was a great concern for Ngurang Meena, a school teacher in Nirjuli. The 30-year -old social science teacher, who ran the Ngurang Learning Institute, an adult literacy centre, said that she felt disheartened when she read student papers. “The graph of student performance is falling every year. It breaks my heart whenever I see answer sheets -- basic grammar skills are missing and there's an absence of any cohesive (连贯性的) expression. They lack guidance and reading culture is almost zero,” Meena said. When her school and the centre she ran had to close due to infectious diseases, she planned to do something to address the problem.
Inspired by a similar proposal in Mizoram, Meena set up a bookshelf with around 80 books as well as some benches on the side of the road in Nirjuli on August 30th, 2020, where passers- by could spend time reading. The selections included motivational books, biographies and novels as well as comics for young children. “I have to please the minors with sweets to sit and read, but that is okay,” she laughed.
Meena's bookshelf became a hit among youngsters who spent hours in the reading corner. Within two months, her effort became the talk of the town.
Now, generous contributions of books come in from the public and she is even receiving requests to set up such libraries in other parts of the state, including one in the capital, Itana-gar. Since the tiny libraries are far from the main town, she also lends books out to those who want to read at home.
“I never thought that this would become such a big inspiration,” Meena said. “Since childhood, we have been told that books are our best friends. The next generation of kids is focused on games and other things. I don't want them to head on the wrong track,” she added.
4. What's the aim of Meena's reading program
A. To care for youngsters lacking in reading.
B. To help adults learn some cohesive expression.
C. To keep Ngurang Learning Institute running well.
D. To highlight the importance of reading for adults.
5. What did Meena do to encourage young kids to read more
A. She offered some rewards to them.
B. She provided them with transportation.
C. She chose novels with beautiful covers.
D. She selected books covering every category.
6. Which words can best describe Meena's libraries
A. Small and useless. B. Influential and meaningful.
C. Large but impractical. D. Widespread but unwelcome.
7. What is the best title for the text
A. Books: Sources of Knowledge B. The Roadside Reading Corner
C. The Library: a Paradise for the Young D. New Ideas about Setting a Reading Plan
C
While we know that language first appeared among Homo sapiens somewhere thousands of years ago, the secret to how language evolved is still unknown, and mainstream theories fall into two distinctly different camps.
One widely held theory is that language came about as an evolutionary adaptation. That was where the idea of natural selection came into play, which was the belief that the specific physical features of a population made that population more likely to survive its environment, like the turtle (海龟) and its shell. On one hand, humans needed to communicate with each other in order to hunt, farm and defend themselves successfully from the surrounding severe environment. Being able to communicate by using language gave the human species a distinct survival advantage. On the other hand, language was needed for social interaction, according to those who subscribed to the adaptation theory.
In their paper “Natural Language and Natural Selection" researchers Steven Pinker and Paul Bloom theorized that a series of calls or gestures evolved over time into combinations, giving us complex communication, or language. As things became more complicated around them, humans needed a more complex system to convey information to one another. Early man saw a group of deer he wanted to hunt. He made a sound to his hunting partner that means“deer are nearby. ”One day, a storm came in and the hunter noticed that thunder scared the deer away. As a result, the hunter went hungry until the storm passed. Over time, the same hunter also learned to recognize the warning signs for bad weather- -dark skies and increased wind. Early man realized that when the sky darkened and the wind picked up, he needed to tell his hunting partner to speed up the pursuit of the deer. Therefore, he came up with a series of sounds that refer to both the deer and the bad weather. That series of sounds was the beginning of an evolutionary adaptation that eventually became language.
As humans learned more about how to best survive, they developed a need to convey these survival methods to their population. To be brief, that's the adaptation theory.
8. Why are the turtle and its shell mentioned in paragraph 2
A. To show the mystery of nature.
B. To support the evolutionary adaptation.
C. To stress the advantage of the turtle's shell.
D. To encourage people to study natural selection.
9. How does the author explain the adaptation theory in paragraph 3
A. By comparing. B. By listing data.
C. By giving an example. D. By carrying out a survey.
10. What will the author most probably tell us next
A. The other theory of how language evolved.
B. The exact place where humans came from.
C. The reasons why animals cannot form language.
D The methods of humans' shaping non- verbal thinking.
11. What is the text mainly about
A. The evolution of language.
B. The paper on natural selection.
C. The differences between theories.
D. The introduction to human reproduction.
D
A cheap printed sensor could transmit wildfire warnings. Wildfires have recently destroyed regions across the world, and their gravity is increasing. Hoping to reduce harm, researchers led by Yapei Wang, a Chinese chemist of Renmin University, say they have developed an inexpensive sensor to detect such fires earlier with less effort.
Current detection methods rely heavily on human watchfulness, which can delay an effective response. Most wildfires are reported by the general public, and other alerts come from routine foot patrols and watchtower observers. Passing planes and satellites also occasionally spot something, but “the fire first appears on the ground," Wang says. “ When you see the fire from the sky, it is too late. ”
The team says its new sensor can be placed near tree trunks' bases and send a wireless signal to a nearby receiver if there is a dramatic temperature increase. That heat also powers the sensor itself, without replacing batteries. The team printed the substances onto ordinary paper to create a sensor for just $ 0.40.
But improving coordination among the different agencies involved in firefighting is even more crucial to address, says Graham Kent, an earthquake expert at the University of Nevada, Reno, who was not part of the study. Kent is director of ALERTWildfire, a network that uses cameras and crowd sourcing to watch for fires in California, Nevada and Oregon. “The whole way that you respond to a fire until it's put out is like a ballet," he says. “You'd have to choreograph (设计) it just so, with resources precisely used at the right time and place and in the right order from detection to confirmation to assignment to extinguishment (熄灭).Fire detection is just step one.
Wang says his team's next steps are to extend the device's signal range beyond the current 100 meters, which can limit practical use, and to develop a protective shield for it. The transmitter's effectiveness, he notes, will also need to be examined in the field ahead.
12. What does the underlined word “gravity” in paragraph 1 probably mean
A. Pull. B. Extinction.
C Popularity. D. Severity.
13. What do we know about the sensor
A. Its price remains high.
B. Its batteries are replaceable.
C. It can detect fires earlier and easier.
D. It can reduce firefighters' pain.
14. What does Kent mean in paragraph 4
A. Firefighting is easy but crucial.
B. Fire detection resources are rich.
C. Putting out a fire is an orderly activity.
D. Technology is the key to extinguishing a fire.
15. What's the plan for the new sensor according to Wang
A. Improving and testing it.
B. Limiting its use and transmission.
C. Examing and reducing its signal range.
D. Getting it on the market ahead of time.
陕西省榆林市2020届高三三模英语试卷
第一节(共15小题；每小题2分，满分30分)
阅读下列短文，从每题所给的四个选项(A、B、C、和D)中，选出最佳选项。
A
Here are a few of the most popular genres in the UK.
Fantasy
UK has always been famous for stories of magic and wizardry. There are strong cultural memories of the ancestors who built Stonehenge and ruled the country before the arrival of the Romans. Shakespeare wrote a fantastical play: A Midsummer Night’s Dream, for example. Frankston was born when the English poet Lord Byron invited Mary Shelley and others to create a horror story when holidaying in Geneva. The tradition of British fantasy is still alive and kicking, Harry Potter by J. K. Rowling is just one example.
Chick lit
Chick lit refers to books that are written about and for modern women. The most famous example is probably Bridget Jones’s Diary by the British author Helen Fielding. Titles in this genre are usually about complicated love lives, modem working life and trying to remain healthy. These books usually contain humor or a “feel good” factor. In many ways they represent escapist fantasy, but they are popular because they deal with day-to-day topics.
Crime
The UK is known for its detective fiction and modem mysteries. One of the most famous British authors in this genre is of course Sir Arthur Conan Doyle, who started the Sherlock Holmes stories in 1887. The characters in the fiction are still popular on television and in film. There are many contemporary popular British authors of crime fiction: P. D James, Ian Rankin, Colin Dexter.
Celebrity autobiographies
It seems that every minor celebrity(famous person)has written a book these days. They’re not really serious authors and simply cashing in on their ‘15 minutes’ of fame. Many of the books are ‘kiss and tell’ .They are of interest to readers only because of the secrets they reveal about other famous people. This genre is popular because the celebrity culture is well developed in the UK.
21. Why is British Fantasy so popular
A. Because their ancestors built Stonehenge.
B. Because it is part of the British cultural identity.
C. Because there are many fantasy authors.
D. Because English poet Lord Byron created this type of fiction.
22. Which of the following fictions deals with day-to-day topics
A. Frankston B. Sherlock Holmes C. Bridget Jones’s Diary D. Harry Potter
23. Why do many people like to read celebrity autobiographies
A. Because they want to know how these famous people succeed.
B Because they want to know how they can earn a lot of money in short time.
C. Because they want to know the private life of famous people.
D. Because they want to find a way to kill their time.
B
Night after night, mom came to my bed and said good night, even long after my childhood years. As part of her nightly routine she would lean down, push my long hair out of the way and then kiss my forehead.
I can’t remember when it first started annoying me-her hands pushing my hair that way. But it did annoy me anyway for they felt rough against my young skin. Finally, one night, I lashed out at her, “Stop doing that-your hands are too rough!” She didn’t say anything in reply, and never did she end ml y day with that special expression of love again. That night, I found myself lying awake long after she left my room. Regrettably, I never told her I was sorry.
Time after time, with the passing years, my thought would often return to that night. I missed my mother’s hands, and her goodnight kiss upon my forehead, sometimes the memory of that unspeakable night seemed very close and sometimes far away. It was always there in the back of my mind.
Years have passed, I’m no longer a young girl, and mom is in her mid-seventies. Those hands I once thought to he rough are still taking care of me and my family. Over the years, those hands have reached into a medicine cabinet for the remedy that would calm a young girl’s upset stomach or soothe boys painful knee. The very same hands have also cooked the best fried chicken in the world, gotten stains out of my jeans and dished out ice cream on a hot summer day.
Now my own children are all grown and gone, and mom no longer has clad. On special days, I find myself drawn to her house to spend the night with her. On the Eve of one Thanksgiving, as I was about to fall asleep in my old bedroom, a rough, but loving hand, hesitantly stole across my face and brushed the hair from my forehead. Then a kiss, ever so gently, touched my eyebrow.
For the thousandth time I recalled the night when my young voice and gratefully complained, “Stop doing that-your hands are too rough!” then I caught Mom’s hand in mine involuntarily with the deepest regret, I told her how sorry I had felt about that night all those years. To my surprise, Mom didn’t know what I was talking about. She had forgiven and forgotten long ago. That night, I fell asleep with new appreciation for my gentle mother and her caring hands. The guilt that I had felt for so long suddenly disappeared, and nowhere was it to be found.
24. What message does the writer try to carry in her story
A. A Mother’s hands are always rough.
B. A mother should stay home and take care of her children.
C. A child should be grateful for his or her mother’s love.
D. A child will never learn to appreciate his or her mother’s love.
25. When the writer was young, it was part of her mom’s nightly routine to .
A. get stains out of the family’s clothes B. dish out ice cream for the family
C. soothe the writer’s painful knee D. kiss the writer the forehead before she fell asleep
26. After the writer lashed out at her mother, she .
A told her mother she was sorry at once
B. had been missing her mother’s hands and goodnight kiss
C. went to her mother’s bedroom and said good night
D. caught her mom’s hands in hers
27. Which of the following sentences from the reading is the writer’s opinion
A. Night after night, Mom came to my bed and said goodnight.
B. That night, I found myself lying awake long after she left my room.
C. Sometimes, the memory of that unspeakable night seemed very close and sometimes far away.
D. Now my own children are all grown and gone and mom no longer has dad.
C
Dolphins make a wide range of communicative sounds and also display something called vocal learning, which is the ability of an animal to modify its vocalization(声音)based on its experience with other animals.
Mainly, there are three types of dolphin vocalizations: whistles, clicks, and burst pulses. People still don’t know their precise meanings, but people do know that dolphins use their vocalizations as a way to communicate with one another.
The dolphin whistles are very high frequency sounds partially above the range of human hearing. What’s fascinating is that each dolphin has a signature whistle, which is unique to each individual dolphin. It allows them to call to or identify each other.
No two signature whistles are same-sounding. As members of the same family, their signature whistles have similar elements. Dolphins use them as a contact calls. They call to each other while travelling and searching for food. It helps keep the group together and helps mother and children find each other. The uniqueness of each dolphin’s signature whistles is just like the following example: if you were travelling in the forest with one other person who was just out of sight, you would call out, “Are you there ” and the other person would respond. But if there were several people in the forest, you would have to call that person’s name.
In addition to whistles, dolphins produce clicks, which are actually sonar or sound waves. They use clicks to communicate, but more importantly to navigate and hunt. How The sonar clicks bounce off objects and then the dolphins convert the incoming signals into a three dimensional picture, a mental map of what’s around them. The clicks are extremely sensitive and accurate. The sonar clicks are also very strong. One reason why dolphins swim side by side is to avoid interference from each other’s sonar clicks. Interference would be confusing and it would prevent them from getting an accurate picture of their surroundings. And what’s interesting is dolphins will turn off their sonar when another dolphin passes in front.
The third category of dolphin vocalizations is burst pulses. These are all the other sounds the dolphin makes-squeals, barks, groans and so on. Burst pulses are used to display dislike, claim their living area and attract a mate.
28. What is the reading passage mainly about
A. How dolphins produce songs they want.
B. How dolphins teach their young to identify signature whistles.
C How dolphins swim side by side to hunt.
D. How dolphins communicate with one another in various ways.
29. According to the reading passage, why do dolphins travel side by side
A. To show how united they are as a group.
B. To hear each other’s signature whistles.
C. To avoid interference with other dolphins’ sonar clicks.
D. To keep mothers close to their young.
30. What does the underlined word “example” in paragraph 4 illustrate
A. The differences between land and marine mammals.
B. The importance of burst pulses as a way dolphins communicate.
C. One reason dolphins travel in large groups.
D. One way dolphins use signature whistles.
31. Which of the following statements is NOT right according to the passage
A. Human can easily hear the dolphin signature whistles.
B. A male dolphin shows his love to a female by using burst pulses.
C. Dolphins know what is around them by analyze the sonar they receive.
D. Dolphins can adjust their vocalizations to the surroundings.
D
The beginnings of life provide scientists with some of the most difficult questions on modern science. Our knowledge of the development of cells, from which all forms of life are made, is not complete because we do not understand very well conditions on our planet four billion years ago. Why and how did cells first appear Was this very likely to happen under the conditions then, or was it due to chance Might this happen in other places in the universe
A group of scientists at London University are trying to answer these questions. They started by studying the way in which the first cells on Earth might have been formed. Next they will use powerful new telescope to look at places far away in the universe. The scientists hope that the results will improve our understanding of the development of life on Earth and help us to find life on other planets.
Dr. Nick Lane, who is in charge of the team, has suggested that four billion years ago warm water springs on the floor of the earth ocean might have helped create life. Each spring consists of tiny connected holes that water passes through. The team have created models of these springs in their labs. You have found that they encourage chemical reactions between hydrogen in the liquids that come out of them and the carbon dioxide in the sea water. These chemical reactions can create the “building blocks” of life, these building blocks are not living themselves, but when they are enough of them joined together in the right way, they can make living things. The water in the system of springs move the building blocks around until there are a lot of them in a small area. Things that look very much like real living cells can be made in this way.
These reactions and changes show us how life on earth and on other planets could begin. When sea water goes through tiny holes in the earth’s surface, it gets very hot and causes a chemical reaction with rocks. When this very hot water goes back up and meets cold sea water again, other chemical reactions happen. Lane explains, “The conditions needed for life are rock, water and carbon dioxide. This could be found on millions of exoplanets (planets beyond solar system), so basic life should be everywhere.”
32. What can we learn from the fourth paragraph
A. Rock, water and carbon dioxide are three things to make life.
B. How different chemicals mix together to produce cells.
C. Amazing reactions are made by hot sea water and cold sea.
D. Life should be seen everywhere in the exoplanets.
33. What does the underlined word “spring” in the third paragraph mean
A. A place where liquid comes out of the earth.
B. A place where cells are easily born.
C. A place where building blocks of life can be found.
D. A place where hydrogen and carbon dioxide are combined.
34. Why is the scientist very sure that there must be life on exoplanets
A. We have had enough knowledge about the Universe.
B. The new powerful telescope can help us find cells on the other planets.
C. The ingredients for life are basic and should be all over the universe.
D. Chemical reactions can happen everywhere in the universe.
35. What is the best title for the text
A. Changes at the Bottom of the Sea B. How Life Starts always puzzles the scientists
C. Search for the Start of Life D. Life Exists on Millions of Exoplanets
答案：
陕西省榆林市2022届高三三模英语试卷
【答案】21. A 22. A 23. B
【解析】
【导语】这是一篇应用文。文章介绍了《舒适的厨房》一书，里面有105种悠闲、健康、有益健康的食谱。
【21题详解】
推理判断题。根据文章标题“The Comfortable Kitchen: 105 Laid-Back, Healthy, and Wholesome Recipes(舒适的厨房：105种悠闲、健康、有益健康的食谱)”及最后一段“With 105 approachable and nutritious recipes for real, busy life, The Comfortable Kitchen is a must-have cookbook for those who care about what they eat and what they make.(对于那些关心自己吃什么和做什么的人来说，“舒适的厨房”是一本必备的食谱，有105种实用且营养丰富的食谱，适合真正忙碌的生活)”可推知，《舒适的厨房》主要是关于烹饪。故选A项。
【22题详解】
细节理解题。根据第三段中的“There are plenty of recipes with simple, flexible ingredients for a meal when desired — perfect for people who are enjoying their “food freedom” stage of their health journey.(如果你想要一顿饭，有很多简单、灵活的食材配方——对于那些正在享受健康之旅的“食物自由”阶段的人来说，这是完美的)”以及最后一段中的“With 105 approachable and nutritious recipes for real, busy life(有105种实用且营养丰富的食谱，适合真正忙碌的生活)”可知，《舒适的厨房》包括很多食谱。故选A项。
【23题详解】
推理判断题。根据最后一段“With 105 approachable and nutritious recipes for real, busy life, The Comfortable Kitchen is a must-have cookbook for those who care about what they eat and what they make.(《舒适的厨房》提供了105种实用且营养丰富的食谱，适合忙碌的生活。对于那些关心自己吃什么、做什么的人来说，这本书是必备品)”可推知，营养师对此短文感兴趣。故选B项。
【答案】24. B 25. C 26. B 27. D
【解析】
【导语】这是一篇记叙文。讲述了作者开车经过一个公交车站时，看到了一个女人独自坐在车站里坐着，在犹豫了一会儿后，为她递了一瓶水，然后和她交谈一会儿点吃的。知道了她的难处后，作者就将身上所有的钱及车上的水送给了那个女的。
【24题详解】
细节理解题。根据第一段“Was she waiting for the bus Did mall（商场）buses come this early when the stores wouldn't be open for hours I felt puzzled.”（她在等公共汽车吗 商场还有好几个小时才开门，商场的巴士来的这么早吗 我感到困惑。）可知，看到独自坐在那里的女士，作者刚开始感觉到很困惑。故选B项。
【25题详解】
推理判断题。根据第二段“"She looks like she is sleeping. Why would I wake her What is wrong with me What is so hard about doing the right thing It's just a bottle of water!"”（“她看起来像在睡觉。 我为什么要叫醒她 我是怎么了 做正确的事有什么难的 这只是一瓶水!”）以及第三段“So I drove by her again and again.Finally, I pulled my car into a parking zone, stepping out with a bottle of water in one hand and a twenty-dollar bill in the other.”（所以我一次又一次地开车经过她身边。最后，我把车开进了停车场，一手拿着一瓶水，一手拿着一张20美元的钞票走了出来。）可知，作者一次又一次地开车经过这个女人是为了评估是否要帮助她。故选C项。
【26题详解】
词句猜测题。根据前句“I still have a thousand questions as to why I struggled to act. Why did it take me many circles around the mall and an argument with myself ”（我仍然有一千个问题，为什么我做这件事会这么挣扎。 为什么我在商场里转了那么多圈，内心还在和自己斗争 ）以及该句的“between helping her and ignoring her”（在帮助她和忽视她之间）可知，作者在是否帮助这位女士上很犹豫，一直在挣扎要不要伸出援手，所以难以决定。所以此处“torn”的意思和B项意思相近。故选B项。
【27题详解】
推理判断题。根据最后一段“There are opportunities for us to love every day. Maybe our doubts keep us from acting. Maybe we don't want to take the risk or be uncomfortable. That day, I learned how love answers when asked and how love both gives and receives.”（每一天，我们都有机会去爱。也许是我们的疑虑阻止了我们行动。也许我们不想冒险或者感到不舒服。那天，我学会了当别人需要时如何用爱回应，以及爱是如何付出和给予的。）以及整篇文章在描述作者在是否帮助一位女士上，刚开始有犹豫，但是最终伸出援手，收获了内心的满足。所以，作者明白了给予爱的最好方式就是赶紧行动起来，不要犹豫。故选D项。
【答案】28. A 29. C 30. B 31. C
【解析】
【导语】本文是说明文。本文主要讲述在新兴经济体增长缓慢的背景下，数字技术使得中国经济保持了稳步增长。
【28题详解】
细节理解题。根据第一段“The world’s largest emerging market has already demonstrated the enormous effects of digital technology. As China’s old industries have slowed sharply over the past decade, the booming technology industry has kept the economy growing steadily.”（世界上最大的新兴市场已经证明了数字技术的巨大影响。在过去十年中，随着中国老工业急剧放缓，蓬勃发展的科技工业使中国经济保持了稳步增长。）可知，数字技术使得中国经济保持了稳步增长。故选A。
【29题详解】
推理判断题。根据第三段“In countries where people have difficulty even finding public facilities, a bank or a hospital, they will jump at the first digital option that comes along. Though only 5% of the Kenyans carry credit cards, more than 70% have access to digital banking.”（在人们甚至很难找到公共设施、银行或医院的国家，他们会欣然接受出现的第一个数字技术选项。虽然只有5% 的肯尼亚人持有信用卡，但超过70% 的肯尼亚人可以使用数字银行。）可知，新兴市场中肯尼亚人很积极地接受数字技术。故选C。
【30题详解】
推理判断题。根据第四段“Since 2010, the cost of starting a business has been steady in developed countries while falling sharply in emerging market countries, from 66% to just 27% of the average annual income. Entrepreneurs can now launch businesses affordably, organizing much of what they need on a smartphone.”（自2010年以来，发达国家的创业成本一直保持稳定，而新兴市场国家则急剧下降，从平均年收入的66% 降至仅27% 。企业家们现在可以在智能手机上组织他们所需要的大部分东西，从而以可承受的价格创办企业。）可知，数字经济的繁荣是因为创办企业所需要的投入大大减少了，企业家们可以轻松地创办企业了。故选B。
【31题详解】
主旨大意题。根据第一段“Emerging economies struggled to grow through the 2010s and pessimism clouds them now. People wonder how they will pay debts piling up during the pandemic and how they can grow rapidly. The freshest answer to this problem is the fast-spreading digital revolution. The world’s largest emerging market has already demonstrated the enormous effects of digital technology. As China’s old industries have slowed sharply over the past decade, the booming technology industry has kept the economy growing steadily.”（新兴经济体在本世纪10年代难以实现增长，现在悲观情绪笼罩着它们。人们想知道他们如何偿还在大流行期间堆积的债务，以及他们如何能够快速增长。对这个问题最新鲜的答案是迅速蔓延的数字革命。世界上最大的新兴市场已经证明了数字技术的巨大影响。在过去十年中，随着中国老工业急剧放缓，蓬勃发展的科技工业使中国经济保持了稳步增长。）可知，本文主要讲述在新兴经济体增长缓慢的背景下，数字技术使得中国经济保持了稳步增长，C项“数字技术将拯救缓慢发展的新兴市场”符合文意。故选C。
【答案】32. D 33. A 34. C 35. D
【解析】
【导语】这是一篇说明文。研究人员提出了一些有关精神疾病的新理论，并希望多了解其病理以及引发精神疾病的生物学因素，从而研制出有效的药物。
【32题详解】
细节理解题。根据第一段内容“A study led by Plana-Ripoll, a doctor at Aarhus University in Denmark, tries to deal with a fundamental question that has bothered researchers for more than a century—what exactly causes mental illness (丹麦奥胡斯大学的Plana-Ripoll博士领导了一项研究，试图解决一个困扰了研究人员一个多世纪的基本问题——究竟是什么导致了精神疾病？)”可知，精神疾病的根源是什么，这一问题困扰了研究人员一个多世纪。故选D项。
【33题详解】
细节理解题。根据第三段最后一句“Instead, recently they’ve found that disorders shade into each other, and there are no hard dividing lines.(相反，他们最近发现，紊乱相互影响，并且没有明显的分界线)”可知，研究人员最近发现各种精神障碍之间存在联系。故选A项。
【34题详解】
细节理解题。根据第四段的“Perhaps there are several dimensions of mental illness, so depending on how a person scores on each dimension, they might be more likely to have some disorders than others.(精神疾病可能有多个维度，因此根据一个人在每个维度上的得分，他们可能比其他人更容易患上某些疾病)”和最后一句“Both ideas are being taken seriously though the former one is more widely accepted by the researchers.(这两种观点都得到了认真的对待，但前者更被研究人员广泛接受)”可知，多维度的概念更广泛地被研究人员接受。故选C项。
【35题详解】
推理判断题。根据最后一段中“They are also hopeful that, in the long run, replacing this framework with one that is grounded in biology will lead to new drugs and treatments. The researchers aim to reveal, for instance, the key genes, brain regions and neurological processes involved in psychopathology (精神病理学), and target them with treatments. (他们也希望，从长远来看，用一个基于生物学的框架取代这个框架，将会带来新的药物和治疗方法。例如，研究人员旨在揭示与精神病理学有关的关键基因、大脑区域和神经过程，并针对它们进行治疗)”可推知，研究精神疾病的病理以及引发精神疾病的生物学因素可能会对他们接下来的工作有所帮助。故选D项。
陕西省榆林市2021届高三三模英语试卷
【答案】1. D 2. C 3. C
【解析】
【分析】本文是一篇应用文。在英国怎样才能买到便宜的火车票呢？本文给出了四条建议：提前预订，非高峰出行，使用票价预测软件和选择季票。
【1题详解】
细节理解题。根据第三段第一句“When travelling by train in the UK, you can benefit from reduced fares by choosing the time periods of day that are less busy.（当你在英国乘火车旅行时，你可以选择一天中不那么繁忙的时段来享受优惠票价。）”可知，在英国乘火车旅行时，游客可以选择一天中不那么繁忙的时间来享受优惠票价，这意味着旅行时间段是相对空闲的。故选D。
【2题详解】
细节理解题。根据第四段第一句“Our clever little price prediction tool will predict the future and let you know when ticket prices are about to go up, meaning you’1l never miss out on the best value fares.”（我们聪明的小价格预测工具可以预测未来，让你知道什么时候机票价格会上涨，这意味着你永远不会错过最实惠的票价。）”可知，price prediction 是一款价格预测工具，它可以预测未来票价走势，让游客知道票价什么时候会上涨。故选C。
【3题详解】
推理判断题。根据第一段第一句“If you re after cheap UK train tickets, check the suggestions below and see how you could bag yourself a bargain.（如果你想买便宜的英国火车票，看看下面的建议，看看怎样才能买到便宜货。）”可推断，作者的写作目的是让乘客买火车票少花钱。故选C。
【答案】4. A 5. A 6. B 7. B
【解析】
【分析】本文是一篇记叙文。一位名叫Meena 的女教师发现孩子们缺乏阅读后，决定开设一个路边的读书角，以激励他们多读书。
【4题详解】
细节理解题。根据第一段最后一句“They lack guidance and reading culture is almost zero,” Meena said. When her school and the centre she ran had to close due to infectious diseases, she planned to do something to address the problem.”（他们缺乏指导，阅读文化几乎为零。当她的学校和所经营的中心由于传染病而不得不关闭时，她计划采取措施解决这一问题。）可知，Meena要解决孩子们缺乏阅读的问题，因此她的读书计划就是为了关爱那些缺乏阅读的孩子们。故选A项。
【5题详解】
细节理解题。根据第二段最后一句“I have to please the minors with sweets to sit and read, but that is okay,” she laughed.”（“我必须用糖果取悦未成年人，让他们坐着看书，但这没关系。”她笑着说道。）可知，Meena得奖励孩子们一些糖果，让他们坐下来阅读。故选A项。
【6题详解】
推理判断题。根据第三段Meena's bookshelf became a hit among youngsters who spent hours in the reading corner. （Meena's的图书馆在阅读角的年轻人中很受欢迎）以及第四段“generous contributions of books come in from the public and she is even receiving requests to set up such libraries in other parts of the state, including one in the capital, Itana-gar.”（公众慷慨捐赠了书籍，她甚至收到了在该州其他地区（包括首都Itana-gar的一个图书馆）建立此类图书馆的要求。）可知，故她的图书馆是有影响力和有意义的。故选B项。
【7题详解】
主旨大意题。由第二段“Inspired by a similar proposal in Mizoram, Meena set up a bookshelf with around 80 books as well as some benches on the side of the road in Nirjuli on August 30th, 2020, where passers- by could spend time reading.”（受到Mizoram类似提议的启发，Meena于2020年8月30日在Nirjuli的路边建立了一个约80本书以及一些长椅的书架，路人可以在这里花时间阅读。）可知，本文主要讲一位女教师开设路边的读书角的故事。所以短文的最佳标题为“路边阅读角”。故选B项。
【答案】8. B 9. C 10. A 11. A
【解析】
【分析】本文是一篇说明文。文章介绍了其中之一的语言进化原理——适应原理。
【8题详解】
推理判断题。根据第二段“One widely held theory is that language came about as an evolutionary adaptation.（一个被广泛接受的理论是，语言是进化适应的产物。）”可推断，在第二段提到乌龟和它的壳的原因是支持进化适应。故选B。
【9题详解】
推理判断题。根据第三段作者讲述了早起的猎人捕杀鹿时，因为天气的变化鹿被吓走后来猎人们识别坏天气的警告信号的故事，可知作者是通过举例子解释第三段中的适应理论。故选C。
【10题详解】
推理判断题。根据第一段“mainstream theories fall into two distinctly different camps.（主流理论分为两个截然不同的阵营。）”本文主要讲述的是其中之一的适应理论，可推断，作者接下来最有可能告诉我们语言进化的另一种理论。故选A。
【11题详解】
主旨大意题。根据第一段“While we know that language first appeared among Homo sapiens somewhere thousands of years ago, the secret to how language evolved is still unknown, and mainstream theories fall into two distinctly different camps.（虽然我们知道语言最早出现在智人中是在几千年前的某个地方，但语言如何进化的秘密仍是未知的，主流理论分为两个截然不同的阵营。）”以及下文通过举例子阐述语言进化的其中之一的理论可知，这篇文章的主要内容是语言的进化。故选A。
【答案】12. D 13. C 14. C 15. A
【解析】
【分析】本文是一篇说明文。文章介绍了研发团队已经开发出一种可以更早地探测到火灾的传感器，并讲述了研发过程和改进。
【12题详解】
词义猜测题。根据前文“Wildfires have recently destroyed regions across the world（最近，野火摧毁了世界各地的一些地区）”可知，野火所造成的危害在增加，所以gravity指的是“严重性”之意。故选D。
【13题详解】
细节理解题。根据第一段“say they have developed an inexpensive sensor to detect such fires earlier with less effort.（他们已经开发出一种廉价的传感器，可以更早地探测到此类火灾。）”可知，传感器能更早更容易地探测到火灾。故选C。
【14题详解】
推理判断题。根据第四段Kent说的话“You'd have to choreograph (设计) it just so, with resources precisely used at the right time and place and in the right order from detection to confirmation to assignment to extinguishment (熄灭).Fire detection is just step one.（你必须精心设计，在正确的时间和地点，以正确的顺序精确地使用资源，从探测、确认、分配到灭火。探测火灾只是第一步。）”可推断，扑灭火灾是一项有秩序的活动。故选C。
【15题详解】
推理判断题。根据最后一段“Wang says his team's next steps are to extend the device's signal range beyond the current 100 meters, which can limit practical use, and to develop a protective shield for it. The transmitter's effectiveness, he notes, will also need to be examined in the field ahead.（王说，他的团队的下一步是将该设备的信号范围扩展到目前100米以外，这可能会限制实际使用，并为其开发一种保护罩。他指出，发射机的有效性还需要在未来的领域进行检验。）”可推断，新传感器的计划是改进和测试。故选A。
陕西省榆林市2020届高三三模英语试卷
【答案】21. B 22. C 23. C
【解析】
这是一篇应用文。文章主要介绍了英国流行的四种文学形式，包括奇幻故事、畅销小说、犯罪小说和名人自传。
【21题详解】
推理判断题。根据Fantasy部分中UK has always been famous for stories of magic and wizardry. There are strong cultural memories of the ancestors who built Stonehenge and ruled the country before the arrival of the Romans.可知英国一直以奇幻的故事而闻名。在罗马人到来之前，建造巨石阵并统治这个国家的祖先有着强烈的文化记忆。由此可推知，英国奇幻故事如此受欢迎，是因为这是英国文化认同的一部分。故选B。
【22题详解】
细节理解题。根据Chick lit部分中The most famous example is probably Bridget Jones’s Diary by the British author Helen Fielding. Titles in this genre are usually about complicated love lives, modem working life and trying to remain healthy. These books usually contain humor or a “feel good” factor. In many ways they represent escapist fantasy, but they are popular because they deal with day-to-day topics.可知最著名的例子可能是英国作家Helen Fielding写的《BJ单身日记》。这类题材的标题通常是关于复杂的爱情生活、现代工作生活以及如何保持健康。这些书通常包含幽默或“感觉良好”的因素。在许多方面，它们代表了逃避现实的幻想，但它们受欢迎的原因是它们处理日常话题。由此可知，Bridget Jones’s Diary涉及日常话题。故选C。
【23题详解】
细节理解题。根据最后一段中Many of the books are ‘kiss and tell’ .They are of interest to readers only because of the secrets they reveal about other famous people.可知很多书都是“kiss and tell”，读者之所以感兴趣，只是因为书中透露了其他名人的秘密。由此可知，许多人喜欢看名人自传，因为他们想知道名人的私生活。故选C。
【答案】24. C 25. D 26. B 27. C
【解析】
本文是记叙文。文章讲述的是母亲对孩子的爱，每晚母亲都会亲吻孩子的额头，虽然作者曾经抨击母亲这样的做法，但是后来非常愧疚，母爱的包容，令作者深深的感动。
【24题详解】
推理判断题。根据最后第一段That night, I fell asleep with new appreciation for my gentle mother and her caring hands. The guilt that I had felt for so long suddenly disappeared, and nowhere was it to be found.得知，作者对温柔的母亲和她关爱的手产生了一种新的“感激”。母女情深，这时我感到得到了母爱的包容，因而我的愧疚荡然无存。作者通过自己的故事想要表达孩子应该对母亲的爱表示感激。故选C。
【25题详解】
细节理解题。根据第一段Night after night, mom came to my bed and said good night, even long after my childhood years. As part of her nightly routine she would lean down, push my long hair out of the way and then kiss my forehead.得知在我童年时，每晚妈妈都会到我的床边说晚安，她会附身，撩开我的长发亲吻我的额头，可知作者母亲在作者小时候每晚必做的事情是在她睡前亲吻她的额头。故选D。
【26题详解】
推理判断题。根据第三段Time after time, with the passing years, my thought would often return to that night. I missed my mother’s hands, and her goodnight kiss upon my forehead, sometimes the memory of that unspeakable night seemed very close and sometimes far away. 得知时光流逝，我总想起那天晚上，我想念母亲的双手，想念她每晚亲吻我额头跟我道晚安，在作者猛烈抨击她母亲手粗糙之后，作者开始怀念妈妈的手和晚安亲吻。故选B。
【27题详解】
推理判断题。根据第三段sometimes the memory of that unspeakable night seemed very close and sometimes far away. It was always there in the back of my mind.得知，作者有时候感到那个难以言说的夜晚回忆似乎很近有时候又似乎很远。故选C。
【答案】28. D 29. C 30. D 31. A
【解析】
本文是说明文。海豚通过发出各种各样的声音交流，文章介绍了海豚的三种叫声及各自的特点和作用。
【28题详解】
主旨大意题。第一段开头Dolphins make a wide range of communicative sounds and also display something called vocal learning.点明海豚能发出各种各样的交流声音。第二段Mainly, there are three types of dolphin vocalizations: whistles, clicks, and burst pulses.介绍海豚的三种叫声，下文再分别介绍每种叫声的详细情况和作用。所以本文介绍的是海豚如何用不同的方式彼此交流的，故选D。
【29题详解】
细节理解题。根据倒数第二段One reason why dolphins swim side by side is to avoid interference from each other’s sonar clicks. Interference would be confusing and it would prevent them from getting an accurate picture of their surroundings.可知海豚肩并肩游来游去的一个原因是为了避免来自彼此声纳的干扰。干扰会使他们感到困惑，而且会使他们无法获得对周围环境的准确图像。故选C。
【30题详解】
猜测词义题。本句意为：每只海豚独特的口哨声如下所示。下文举了两个人和多个人在森林中旅行称呼不同的例子，旨在说明这是海豚使用标志性哨声的一种方式，帮助找到对方。故选D。
【31题详解】
细节理解题。根据第三段The dolphin whistles are very high frequency sounds, partially above the range of human hearing.可知海豚的口哨声是非常高频的声音，部分高于人类的听力范围，所以我们不会很容易听到。由此推知A项：Human can easily hear the dolphin signature whistles.表达错误，故选A。
【答案】32. A 33. A 34. C 35. C
【解析】
【分析】
本文是一篇说明文。文章主要介绍科学家一直在寻找生命的起源。
【32题详解】
细节理解题。根据文章第四段“The conditions needed for life are rock, water and carbon dioxide.(生命所需的条件是岩石、水和二氧化碳。)”根据Nick Lane博士的话可知，岩石、水和二氧化碳是构成生命的三样东西。故选A。
【33题详解】
词义猜测题。根据文章第三段“consists of tiny connected holes that water passes through.”由小洞连接而成，水可以从中流过。可猜测，spring指的是“喷泉”，即液体从地下涌出的地方。故选A。
【34题详解】
推理判断题。根据文章第四段“This could be found on millions of exoplanets (planets beyond solar system), so basic life should be everywhere. (这可能在数以百万计的系外行星(太阳系以外的行星)上发现，所以基本生命应该无处不在。)”可知Nick Lane博士认为，岩石、水和二氧化碳构成生命成分的三要素应该遍布宇宙，所以科学家非常确定系外行星上一定有生命。故选C。
【35题详解】
主旨大意题。根据文章第一段“The beginnings of life provide scientists with some of the most difficult questions on modern science.(生命的起源给科学家们提供了现代科学中一些最困难的问题。)”及全文内容可知，本文主要介绍科学家一直在寻找生命的起源。所以用“Search for the Start of Life(寻找生命的起源) ”作为文章的标题最为合适。故选C。
【点睛】考查阅读理解选择最佳标题时，需要注意排除绝对化或片面的选项，要放眼全文，从首段和末段寻找文章的主旨大意。小题4就是根据文章第一段“The beginnings of life provide scientists with some of the most difficult questions on modern science.(生命的起源给科学家们提供了现代科学中一些最困难的问题。)”及全文内容可知，本文主要介绍科学家一直在寻找生命的起源，从而概括出标题。