“I can’t concentrate.” “My mind wanders when I try to study.” Lack of concentration is one of the most common complaints heard at school.
We all have the ability to concentrate. Think of the times when you were attracted to a super novel or the times when you were playing your guitar or piano. But at other times your mind races from one thing to another. Here are some tips.
Rest from time to time. Remember to take short breaks. Lectures are usually 50 minutes long, and that’s about the length of time most people can direct their attention to one task. But that’s just an average. Your concentration time might be shorter (20-35 minutes) or longer (perhaps 90 minutes).When you take a break, you get more oxygen to your brain! When we sit for long periods, blood tends to be pooled in our lower body and legs. Get up and walk around the room for a couple of minutes. As a result, more oxygen is carried to the brain and you can concentrate better.
_______________If you study one subject for a long time, you may find it hard to concentrate. Many students improve their concentration by changing one subject to another every one to two hours. In this way you can pay more attention to something that’s different.
Reward yourself. Give yourself a reward when you’ve completed a task. The task might be small, such as staying with a difficult paper until you’ve finished. But giving yourself a reward can help you be more interested in doing other tasks.
Increase your activity level. Your concentration wanders more easily if you just read an article straight through. Instead, take the heading for each part and turn it into a question. For this part, that would be, “How can I increase my activity level while studying?” Then study that part to answer that question. Do this routinely. The questions give us a focus for each part and increase our involvement(参与).
小题1:According to Paragraph 3, what’s the purpose of walking around?| A．To help us stay fit. | | B．To benefit our lower body. | | C．To provide the brain with more oxygen. | | D．To increase our concentration time to 90 minutes. |
小题2:What’s the best title for Paragraph 4?| A．Study for one hour each time. | | B．Do something difficult. | | C．Study in different ways. | | D．Change subjects. |
小题3:In the last paragraph, the writer suggests that______.| A．we just read the heading of some articles | | B．we do our best to read an article straight through | | C．we ask ourselves questions about what we are reading | | D．we ask other people questions about the article we are reading |
小题4:The writer wrote the passage to______.| A．encourage us to try to concentrate | | B．teach us how to concentrate while studying | | C．give us the reasons for a lack of concentration | | D．list the benefits we can get from concentration |
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小题1:C
小题2:D
小题3:C
小题4:B |
试题分析：很多学生反映在学习的时候容易走神，这很正常，但是我们可以改善专注力，作者给我们提供了一些建议在学习的时候怎么集中注意力。
小题1:细节题：根据第三段的句子：Get up and walk around the room for a couple of minutes. As a result, more oxygen is carried to the brain and you can concentrate better.可知四处走动的目的是提供大脑更多的氧气，所以选C。
小题2:段落大意题：根据第四段的句子：If you study one subject for a long time, you may find it hard to concentrate. Many students improve their concentration by changing one subject to another every one to two hours.可知这段讲的是改变科目，所以选D
小题3:细节题：根据最后一段的句子：Instead, take the heading for each part and turn it into a question.可知作者建议我们就自己阅读的东西问自己一些问题，所以选C
小题4:主旨题：根据第一段的句子：But at other times your mind races from one thing to another. Here are some tips.可知这篇文章是告诉我们在学习的时候怎么集中注意力。选B
考点: 考查教育类短文 |
核心考点
试题【“I can’t concentrate.” “My mind wanders when I try to study.” Lack of concentrat】；主要考察你对
题材分类等知识点的理解。
[详细]举一反三
It’s a delicate（棘手的）time — if not every parent’s worst nightmare — when a child enters adolescence.
Not only are their bodies __ _ physically , but hormones (荷尔蒙) are spreading violently and bad moods are in full swing (活跃).Katie Couric spoke with Dr. Barbara Greenberg, a parenting expert and clinical psychologist , all about how parents can _ _ with their teens , and finally get some answers .Every parent wants to know what is going on inside their teenager’s _ ___, and while the normal instinct (本能) is to give them the third degree (盘问) about their day , Dr Greenberg strongly _ __ us not to question teens closely for long , who are _ __ to get upset or excited all of a sudden.
direct, general questions like “How was your day?” or “How was the date?”. Teens will respond more positively to questions like “How was the movie?” they aren’t ready to give you a whole bunch of information at once. Listening is an important part of any , and interrupting your child may not get you much .
Most adolescents are discovering who they are and how they society. While it might seem that their eyes are laden with laser beams (激光束) and you are their next target, they are also under a lot of pressure, both socially and academically. Let them themselves freely; this is their way of telling you about their .
Even though the idea isn’t “cool”, research has found that about 80% of teens admire and want to spend time with their parents. Teens really love their parents!
, but believe it. They are between wanting that precious independence and mom and dad.
Show your kids at an early age that it’s okay to talk about anything at home. like drugs, sex and alcohol can be scary for both to discuss, but having these conversations has been proven to help teens keep a healthy lifestyle.
It is totally possible to a strong relationship with your teen! Just remember to stay calm, what they have to say, and don’t take that sigh when you ask about their homework too personally.
| 小题1: | | A．promoting | B．changing | C．enlarging | D．increasing |
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| 小题2: | | A．talk | B．live | C．deal | D．fight |
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| 小题3: | | A．room | B．body | C．school | D．head |
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| 小题4: | | A．suggests | B．appeals | C．encourages | D．persuades |
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| 小题5: | | A．supposed | B．concerned | C．wanted | D．expected |
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| 小题6: | | A．Ignore | B．Ask | C．Escape | D．Avoid |
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| 小题7: | | A．common | B．indirect | C．accurate | D．specific |
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| 小题8: | | A．unless | B．because | C．if | D．when |
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| 小题9: | | A．thought | B．understanding | C．conversation | D．saying |
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| 小题10: | | A．response | B．love | C．news | D．attitude |
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| 小题11: | | A．fit into | B．put into | C．object to | D．respond to |
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| 小题12: | | A．examine | B．teach | C．enjoy | D．express |
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| 小题13: | | A．day | B．future | C．failures | D．studies |
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| 小题14: | | A．Exciting | B．Disappointing | C．Shocking | D．Frightening |
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| 小题15: | | A．fighting | B．struggling | C．concerning | D．pushing |
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| 小题16: | | A．carrying on with | B．holding on to | C．keeping up with | D．keeping out of |
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| 小题17: | | A．Worries | B．Conversations | C．Topics | D．Questions |
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| 小题18: | | A．parties | B．people | C．members | D．families |
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| 小题19: | | A．grasp | B．find | C．hang | D．keep |
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| 小题20: | | A．be silent | B．keep smiling | C．listen to | D．be friendly |
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Picture the scene: the battery on your mobile phone has run out． You can"t make any calls for help and no one can contact you． You are all alone - well, not quite． Just reach into your pocket and take out a piece of sugar．Put it into the battery, wait a minute, and you"re back on the phone．
Thanks to a couple of American scientists, this situation could become real．Swadesh Chaudhuri and Derek Lovely have invented the"bacteria battery" - powered by bacteria that eats sugar and turns it into electricity．
"This is a special organism," Lovely said．"You can harvest enough electricity to power a cell phone battery for about four days from a spoonful of sugar．"
In the past, bacteria batteries have been expensive and not long-lasting． But this battery uses more efficient bacteria that can turn 80 percent of sugar into electrical energy． This is 30 percent more than similar batteries can manage．
The bacteria battery could become as small as a household battery． It"s also cheap and stable, as sugar can be taken from waste and crops．
But the sugar to electricity process is slow: it could take weeks for the bacteria to digest a cup of sugar．And it produces "greenhouse" gases which pollute the environment．
The scientists understand there is a lot more work to be done． "It is still young," said Lovely．"Where we are now is where solar power was 200r 30 years ago．"
But he believes the battery could be used in scientific equipment at the bottom of the ocean．Other ideas include using sugar in the blood to run medical devices in the human body, and taking sugar from animal waste to provide energy to power homes in rural areas．
小题1:This passage is mainly about_ ．| A．how to change sugar into electricity | | B．a scientific invention of a new kind of bacteria battery | | C．a new way to reduce pollution caused by mobile phones | | D．a new kind of mobile phones and its future |
小题2:Which of the following is not the strong point of the newly-developed battery?| A．Convenient． | B．Stable． | C．Inexpensive． | D．Quick． |
小题3:The underlined sentence in the 7th paragraph actually means ．| A．the bacteria battery shares some similarities with solar energy | | B．scientists will continue their work until they find solar power | | C．there is much room for the improvement of the bacteria battery | | D．the bacteria battery will get popular in 20 0r 30 years |
小题4:According to the passage, who will find the bacteria battery less useful?| A．Farmers． | B．Divers． | C．Doctors． | D．Electricians． |
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Around 200 million years ago, the earth was 18 degrees warmer than it is now. That might be a bit hot for humans, but it was just right for the giant dinosaurs that wandered about the earth during the Mesozoic (中生代的) era. A new study found that planteating dinosaurs may have contributed to the warming of the earthby releasing significant amounts of methane (甲烷)．
The study, published in science journal Current Biology, focused on sauropods, longnecked herbivores (食草动物) that munched (用力咀嚼) on the top of trees. They were the largest of the dinosaurs; food broke down in their stomachs for long periods of time. The researchers estimate that a sauropoda released 2,675 liters of methane per day—adding up to a large amount of the greenhouse gas being pumped from dinosaur"s gut into the atmosphere.
Plant eaters naturally release methane as part of their digestive process. The larger the animal, the more methane it produces. Methane, a greenhouse gas, traps heat and remains in the atmosphere for approximately 915 years, which warms the atmosphere.
Today, some animals, such as cattle, goats and sheep, produce large amounts of methane as a byproduct to their food digestion. Methane is also released from human—influenced sources such as landfill, agricultural activities, coal mining and other industrial practices—which all contribute to today"s climate change, according to the Environmental Protection Agency.
The researchers estimate that earth"s sauropods would have produced about 520 million tons of methane per year—similar to the total amount of methane produced today by natural and manmade sources. However, the researchers warn that their numbers are estimates based on multiple assumptions about the digestive systems and populations of dinosaurs.
The author of the study David Wilkinson says the emission of methane from dinosaurs would have been just one of the causes of warm climate during the Mesozoic era. Other causes include gases produced from volcanoes, swamps, shallow seas and so on. Still, Wilkinson says，“ The amount of methane from dinosaurs is large enough to have a measurable effect.”
小题1:Scientists think dinosaurs may have led to the global warming because ________.| A．they ate everything they found | | B．they usually had a good appetite | | C．they released a lot of methane | | D．there were too many dinosaurs on earth |
小题2:What do we know about dinosaurs from Paragraph 2?| A．Sauropods fed on plants. | | B．Sauropods were of medium size. | | C．Dinosaurs used to live on trees. | | D．Dinosaurs digested food quickly. |
小题3:Which of the following activities doesn"t produce methane?| A．Coal is dug out by machine. | | B．Trees and flowers are planted. | | C．Goats digest grass under the tree. | | D．Food is being processed in the factory. |
小题4:How does the author make his writing reliable?| A．By listing some facts. | | B．By making predictions. | | C．By citing figures. | | D．By using mind pictures. |
小题5:David Wilkinson seems to believe that ________.| A．methane had little effects on the earth | | B．many other factors contributed to warm climate | | C．other causes for warm climate were worth considering | | D．dinosaurs were mainly to blame for global warming |
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As we know, the earth"s climate has changed over time.The present rate of climate change depends, in large part, on human activities.Today, people all over the world are making everyday choices that help the environment.Small actions matter.In other words, climate change is your business.
A woman in Nicaragua buys fluorescent (荧光的) light bulbs that are 80 percent more energysaving than traditional ones. Many governments are now subsidizing energysaving lights to encourage people to turn to them.Consumers are discovering that the newgeneration bulbs help them save money in the long run.
Agriculture accounts for about 14 percent of global greenhouse gas emissions (排放) , and transporting the food around adds to the environmental cost.There is a team of young vegetable growers in the United Kingdom who want to encourage kids to start planting their own fruit and vegetables.
A young lawyer wearing business clothes rides her bicycle to work in a large U．S.city.She"s been biking to work every day for the past two years and says it"s a lot easier than many people think.A recent study shows that more Americans bike or walk to work today than before.
A university student from southeastern China carries a reusable shopping bag to cut back on disposable (一次性的) plastics.Some large shopkeepers have removed paper and plastic bags, and consumers are responding.
In Canberra, Australia, summers are hot and winters cold.To save electricity, Adam Wilson in Canberra uses an energysaving heating system, and he keeps the temperature lower than he did in years past.He still makes it through the summer without air conditioning.
小题1:The passage mainly tells us that________.| A．climate change is concerned with everyone | | B．the global warming is getting worse | | C．saving energy is of great necessity | | D．human is to destroy the environment |
小题2:The underlined word “subsidizing” in Paragraph 2 probably means “________”．| A．charging | B．producing | | C．giving allowance to | D．taking advantage of |
小题3:According to the passage, which of the following is TRUE?| A．The governments don"t expect consumers to use the newgeneration bulbs. | | B．Agriculture should be responsible for part of the global gas emissions. | | C．Many people in Nicaragua go to work on foot or by bike. | | D．University students from China always carry disposable shopping bags. |
小题4:We can learn from the last paragraph that________.| A．the climate in Canberra is mild all the year round | | B．an energysaving heating system will come into use | | C．Adam Wilson has a good habit of saving energy | | D．Adam Wilson is skilled in inventing the energysaving equipment |
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We can make all the jokes we want about taking baths ourselves, but if we are ill in bed and can"t get up, we"ll be thankful to the nurses who help us get clean. While I am not a nurse, and have never given anyone a bath, I would imagine that it would take a lot of sympathy (同情) and patience to do so.
Yet those who attended the International Conference on Intelligent Robots and Systems last month were introduced to Cody, a robot that can bathe human beings.
The robot has a base that can be turned to all directions, two humanlike arms, and movable wrists (腕). It uses a camera to locate parts of the human body. It then uses bath gloves to clean with a little pressure.
The robot was designed at the Georgia Institute of Technology. Charles Kemp of the Healthcare Robotics Lab is the senior researcher for the project. In a test run, Cody was able to remove 96% of a test subject"s dirt—not bad for a robot.
But don"t go asking for Cody yet—he"s still a model. Yet researchers believe that one day Cody may take the place of nurses for this task. Researchers say that Cody will give patients dignity and protect their personal information. I suppose that would depend on the patient. I"m not sure whether a robot using a camera would make me feel very dignified.
Even so, I can appreciate the need. We don"t have enough nurses to go around, and those places that are the most shorthanded, for example, nursing homes, are those that have the most patients who are unable to bathe themselves. Still, before I get there, I hope they think of a better way to solve the problem.
小题1:The writer thinks bathing others must ________.| A．be a lot of fun | | B．make you feel thankful | | C．take a lot of patience | | D．make you feel dignified |
小题2:What is the third paragraph mainly about?| A．Why and where Cody was designed. | | B．What Cody looks like and who designed it. | | C．What Cody can do and where it will work soon. | | D．How Cody works and what has made that possible. |
小题3:We know from the fourth and fifth paragraphs that ________.| A．Cody can bathe patients better than a real nurse can | | B．robots like Cody are being produced in large numbers right now | | C．Cody can take the place of nurses completely in hospitals | | D．researchers think Cody can protect patients" personal information |
小题4:There is a need for Cody because ________.| A．people are becoming lazier | | B．it can bring down the cost of nursing | | C．there are not enough nurses | | D．there are too many nursing homes |
小题5:In the writer"s opinion, Cody is ________.| A．acceptable but not perfect | | B．strange but not creative | | C．clever and strong | | D．lovely and careful |
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