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题型:阅读理解-阅读单选 难度:0.65 引用次数:172 题号:13556434

Technology affects the way individuals communicate, learn, and think. It helps society and determines how people interact with each other on a daily basis. It has positive and negative effects on the world and it impacts daily lives. We are living in a time when technological advancements are common. However, with technological advancements, there's a downside (弊端)to it all.

One aspect of technology that has bad a great impact on society is how it affects learning. It's made learning more interactive, which helps people better understand the material that they are learning and have trouble with. Also, it gets people better access to resources. With the creation of the Internet, it gives us access to information at a twenty-four-hour rate and you have access to almost anything online. In addition, it allows students to get work done easier. It also expands the boundaries of the classroom, encouraging self-paced learning. People can access learning through websites and social media. This helps students learn better than sitting down for lectures and reading from textbooks. These technological advancements have made learning more fun and convenient.

Besides, the technological advancements have also helped keep people safe and healthy. There are many apps on phones for people to monitor their weight, the calories they intake, heart rate and other health properties (属性) any time of the day. There's increased accessibility of treatment available, there's the change in healthcare that adds benefits for the elderly, and hospitals using advanced technology within their surgical rooms.

However, studies show that mobile communication affects people in a negative way when it comes to being sociable and making face-to-face contact. Mobile technology can decrease communication and relations between people. There's less personal time, because you're always in contact with someone. Also, it can be distracting from your schoolwork. There is also loss of privacy, because anyone can find you anywhere, at any time of the day.

In conclusion, all of these things impact how humans act today. Without technological advancements, our way of life would not be as complex. Thus, it has been wisely said that technology is a good servant but a bad master.

1. Which of the following is a downside of technological advancements?
A.Interactive learning methods.B.Accessible learning resources.
C.Monitored health properties.D.Decreased face-to-face meetups.
2. What's the meaning of the underlined word in paragraph 2?
A.widensB.narrowsC.shortensD.contracts
3. What can we infer from the last sentence of the passage?
A.It is wise to be mastered by technology.
B.Technology is good at serving but bad at mastering us.
C.Humans can totally survive with or without technology.
D.We'd better make technology serve rather than control us.
4. What's the author's purpose in writing this passage?
A.to criticize technology for its negative impacts.
B.to promote technology as it benefits us in several ways.
C.to prove technological advancements are second to none.
D.to introduce the pros and cons technology has on our lives.

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阅读理解-阅读单选(约360词) | 适中 (0.65)
文章大意:本文是一篇新闻报道。文章报道了一项关于海洋出口的淡水如何与海洋混合的研究。

【推荐1】If you live in San Diego, you’ve probably noticed some strangely coloured water on the beach lately. You might wonder about red tide, but it’s actually an intentional job. Scientists at UC San Diego Scripps Institution of Oceanography and University of Washington have been experimenting with dyeing (给……染色) the ocean at San Diego beach pink. What could they possibly be up to?

This is being done for a study that examines how fresh water on the outlet of the sea is intermixing with the ocean. The experiment is called Plumes in Nearshore Conditions (PiNC) . “I’m excited because this research hasn’t been done before and it’s a really unique experiment,” said Sarah Giddings, a Scripps coastal oceanographer leading the PiNC study. “The aim is to understand how fresh water interacts with ocean waves, since it is usually warmer than ocean water and more floating.” The researchers are hoping that this pink dye experiment will help them record more about how pollutants and sediments (沉积物) are distributed in the ocean water through these additions of fresh water.

The fresh water is dyed pink so that the team can easily keep track of it when fresh water is added to the sea water. The dye does not threaten the wildlife living there and is then spotted as it progresses in the water. It is tracked by sensors on poles that are located along the sand as well as by drones (无人驾驶飞机) . There’s also a device that tracks the light that is given off by the pink dye. The sensors record the height of the waves, ocean currents and temperature.

Giddings explained, “We’re bringing together a lot of different people with different expertise. I think it’s going to have some really great results and impacts. We will combine the results from this experiment with a former field study and computer models to help us further understand how the dyed fresh water spreads.”

1. How does the author lead in the topic of the text?
A.By showing a strange phenomenon.B.By making an assumption.
C.By quoting a well-known saying.D.By making a comparison.
2. What is the purpose of Plumes in Nearshore Conditions?
A.To introduce the benefits of dyeing sea water pink.
B.To show how fresh water combines with sea water.
C.To prove that fresh water is warmer than sea water.
D.To examine the impact of fresh water on sea water.
3. Why is pink dye used by the team?
A.It can enormously give off light.B.It can function well with sensors.
C.It can be recognized easily and eco-friendly.D.It seems to attract wildlife and spread rapidly.
4. What will the researchers do according to Giddings’ words in the last paragraph?
A.Challenge the results with some experts.B.Build more scientific computer models.
C.Experiment with dyes of another colour.D.Integrate more results of former studies.
2023-11-26更新 | 82次组卷
阅读理解-阅读单选(约550词) | 适中 (0.65)

【推荐2】The constant rise of global demand for protein poses a threat of meat shortage in the agricultural sector. To address this, a few scientists use artificial meat as an alternative to traditional ones, which from the growing process to its benefits proves it does no harm or even it does good to us.

Currently, one of the most advanced techniques to grow meat in the lab involves taking cells from an animal and changing them to muscle cells. The cells are then cultured with nutrients and essential vitamins and can be developed to any quantity and then shaped into hamburgers, steaks or mince, and so it is also called “cultured” meat. “Cultured meat is not genetically engineered,” Dr. Mark Post of Maastricht University says. “It is meat grown from the same cells that produce the meat in the cow, but this time outside the cow.” He believes that cultured meat shouldn’t be any better or worse for you than old-school animal flesh.

This may sound like science fiction, but it is not such a strange idea and there are reasons to be excited about it. “The environment impacts of cultured meat could be lower than those of meat produced in the conventional way,” said Hanna Tuomisto, a researcher at Oxford University. The process would require between 7% and 45% less energy than the same volume of conventionally produced meat such as pork, beef or lamb, and could be engineered to use only 1% of the land and 4% of the water associated with conventional meat. Tuomisto’s research also shows that cultured meat could be part of the solution to feeding the world’s growing population, at the same time cutting emissions and saving both energy and water.

Aside from the above benefits, cultured meat should also provide cheap nutrition. Animal protein is an increasing part of diets, as millions of people in rapidly emerging economies are drawn out of poverty and become able to afford more meat in their diets. The pressure this creates has been an important factor in rapidly rising grain prices, deforestation in the Amazon basin, increasing water shortage and rising pressure to find new farmland. Growing meat artificially could potentially take huge pressure off farmlands around the world.

Another benefit would be to help animal welfare and protect endangered species. If most of our meat was grown, there would be no need for factory farms. Conditions for animals could be greatly improved. Elsewhere, it could also stop illegal endangered species hunts by providing an alternative way to produce meat form these species.

Exactly how long it takes before the meat is sold in supermarkets depends on the investment in research and development. One thing seems clear: Unless vegetarianism catches on in a very big way, the world’s demand for meat will soon outpace our supply of cows, chickens, pigs and other edible animals. The health and environmental impacts of cultured meat aren’t going to be hypothetical for much longer.

1. What does the underlined word “cultured” probably mean?
A.grown.B.sorted.C.connected.D.shaped.
2. Compared with traditional meat, the artificial meat______.
A.tastes much betterB.contains more nutrients
C.saves more natural resourcesD.changes people’s habit of eating meat
3. The author tries to persuade the readers to accept his argument mainly by______.
A.comparing the results from different researches
B.explaining the advantages of the artificial meat
C.presenting the problems caused by meat shortage
D.showing the current situation of food consumption
4. Which of the following shows the structure of the passage?
I: introduction        P: point        SP: sub-point   C: conclusion
A.B.
C.D.
2021-01-29更新 | 147次组卷
阅读理解-阅读单选(约320词) | 适中 (0.65)
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文章大意:这是一篇说明文。文章主要说明了在周三发表在《自然》杂志上的一项研究中提到科学家首次用两只雄性老鼠培育出了幼鼠。文章解释了研究开展的经过以及存在的问题。

【推荐3】For the first time, scientists have created baby mice from two males.

“It’s a very clever strategy,” said Diana Laird, a stem cell and reproductive expert at the University of California, San Francisco, who was not involved in the research. “It’s an important step in both stem cell and reproductive biology.”

Scientists described their work in a study published Wednesday in the journal Nature. First, they took skin cells from the tails of male mice and transformed them into “induced pluripotent stem cells,” which can develop into many different types of cells or tissues. Then, through a process that involved growing them and treating them with a drug, they converted male mouse stem cells into female cells and produced functional egg cells. Finally, they fertilized those eggs and implanted the embryos into female mice. About 1% of the embryos — 7 out of 630 – grew into live mouse pups.

The pups appeared to grow normally and were able to become parents themselves in the usual way, research leader Katsuhiko Hayashi of Kyushu University and Osaka University in Japan told fellow scientists at the Third International Summit on Human Genome Editing last week.

In a commentary published alongside the Nature study, Laird and her colleague, Jonathan Bayerl, said the work “opens up new avenues in reproductive biology and fertility research“ for animals and people. Down the road, for example, it might be possible to reproduce endangered mammals from a single male.

But they raised several cautions. The most notable one? The technique is extremely inefficient. They said it’s unclear why only a tiny fraction of the embryos placed into surrogate mice survived; the reasons could be technical or biological. They also stressed that it’s still too early to know if the protocol would work in human stem cells at all.

1. What can know about Diana Laird from Para. 2?
A.She kept mice for experiments.B.She was an expert in ecology.
C.She spoke highly of the research.D.She made contributions to the research.
2. What can we learn from Para. 3?
A.Male mice were not needed in the process.
B.The technique in the experiment is not that efficient.
C.Scientists refused to describe the experiment.
D.Scientists changed female mouse cells into male ones.
3. What will probably benefit from the technique?
A.Extinct mammalsB.Endangered tigers
C.Protected turtlesD.Fierce eagles
4. What dose the underlined word “protocol” in last paragraph mean?
A.PlanB.CellC.RegulationD.Slogan
2023-06-22更新 | 91次组卷
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