Motherhood may make women smarter and may help prevent dementia (痴呆) in old age by bathing the brain in protective hormones (荷尔蒙) , U.S. researchers reported on Thursday.
Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no offsprings, and their brains show changes that suggest they may be protected against diseases such as Alzheimer’s (早老痴呆症). University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.
“Our research shows that the hormones of pregnancy are protecting the brain, including estrogen(雌激素), which we know has many neuroprotective (保护神经的) effects,” Kinsley said.
“It’s rat data but humans are mammals just like these animals are mammals,” he added in a telephone interview. “They go through pregnancy and hormonal changes.”
Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer’s and other forms of age-related brain decline.
“When people think about pregnancy, they think about what happens to babies and the mother from the neck down,” said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida.
“They do not realize that hormones are washing on the brain. If you look at female animals who have never gone through pregnancy, they act differently toward young. But if she goes through pregnancy, she will sacrifice her life for her infant—that is a great change in her behavior that showed in genetic alterations to the brain.”
1.How do scientists know “Motherhood may make women smarter”?
A. Some researchers have told them.
B. Many women say so.
C. They know it by experimenting on rats.
D. They know it through their own experience.
2.What does the underlined phrase “litters of pups” mean in the second paragraph?
A. Baby rats. B. Animals. C. Old rats. D. Grown-up rats.
3.“It’s rat data but humans are mammals just like these animals are mammals.” What does the sentence suggest?
A. The experiments on the rats have nothing to do with humans.
B. The experiments on the rats are very important for animals.
C. The experiments on the rats are much the same on humans.
D. The experiments on the rats are much the same on other animals.
4.Which title is the best for this passage?
A. Do You Want to Be Smarter? B. Being Mother Makes You Brighter
C. Mysterious Hormones D. An Important Study
高三英语阅读理解中等难度题
Motherhood may make women smarter and may help prevent dementia(痴呆) in old age by bathing the brain in protective hormones(荷尔蒙) , U.S. researchers reported on Thursday.
Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies, and their brains show changes that suggest they may be protected against diseases such as Alzheimer’s(早老痴呆症). University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.
“Our research shows that the hormones of pregnancy(怀孕) are protecting the brain, including estrogen(雌激素), which we know has many neuroprotective (保护神经的) effects,” Kinsley said.
“It’s rat data but humans are mammals just like these animals are mammals,” he added in a telephone interview. “They go through pregnancy and hormonal changes.”
Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer’s and other forms of age-related brain decline.
“When people think about pregnancy, they think about what happens to babies and the mother from the neck down,” said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida.
“They do not realize that hormones are washing on the brain. If you look at female animals who have never gone through pregnancy, they act differently toward young. But if she goes through pregnancy, she will sacrifice her life for her infant—that is a great change in her behavior that showed in genetic alterations(改变) to the brain.”
1.What does the phrase “litters of pups” mean in the second paragraph?
A. Baby rats. B. Animals. C. Old rats. D. Grown-up rats.
2.What can protect the brain of a woman according to the passage?
A. Estrogen. B. The hormones of pregnancy.
C. More exercise. D. Taking care of children.
3.“It’s rat data but humans are mammals just like these animals are mammals.” What does the sentence suggest?
A. The experiments on the rats have nothing to do with humans.
B. The experiments on the rats are very important for animals.
C. The experiments on the rats are much the same on humans.
D. The experiments on the rats are much the same on other animals.
4.Which title is the best for this passage?
A. Do You Want to Be Smarter? B. Motherhood Makes Women Smarter
C. Mysterious Hormones D. An Important Study
高三英语阅读理解中等难度题查看答案及解析
Motherhood may make women smarter and may help prevent dementia (痴呆) in old age by bathing the brain in protective hormones (荷尔蒙) , U.S. researchers reported on Thursday.
Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no offsprings, and their brains show changes that suggest they may be protected against diseases such as Alzheimer’s (早老痴呆症). University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.
“Our research shows that the hormones of pregnancy are protecting the brain, including estrogen(雌激素), which we know has many neuroprotective (保护神经的) effects,” Kinsley said.
“It’s rat data but humans are mammals just like these animals are mammals,” he added in a telephone interview. “They go through pregnancy and hormonal changes.”
Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer’s and other forms of age-related brain decline.
“When people think about pregnancy, they think about what happens to babies and the mother from the neck down,” said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida.
“They do not realize that hormones are washing on the brain. If you look at female animals who have never gone through pregnancy, they act differently toward young. But if she goes through pregnancy, she will sacrifice her life for her infant—that is a great change in her behavior that showed in genetic alterations to the brain.”
1.How do scientists know “Motherhood may make women smarter”?
A. Some researchers have told them.
B. Many women say so.
C. They know it by experimenting on rats.
D. They know it through their own experience.
2.What does the underlined phrase “litters of pups” mean in the second paragraph?
A. Baby rats. B. Animals. C. Old rats. D. Grown-up rats.
3.“It’s rat data but humans are mammals just like these animals are mammals.” What does the sentence suggest?
A. The experiments on the rats have nothing to do with humans.
B. The experiments on the rats are very important for animals.
C. The experiments on the rats are much the same on humans.
D. The experiments on the rats are much the same on other animals.
4.Which title is the best for this passage?
A. Do You Want to Be Smarter? B. Being Mother Makes You Brighter
C. Mysterious Hormones D. An Important Study
高三英语阅读理解中等难度题查看答案及解析
Motherhood may make women smarter and may help prevent dementia(痴呆) in old age by bathing the brain in protective hormones(荷尔蒙) , U.S. researchers reported on Thursday.
Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies, and their brains show changes that suggest they may be protected against diseases such as Alzheimer’s (早老痴呆症). University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.
“Our research shows that the hormones of pregnancy (怀孕) are protecting the brain, including estrogen (雌激素), which we know has many neuroprotective (保护神经的) effects,” Kinsley said.
“It’s rat data but humans are mammals just like these animals are mammals,” he added in a telephone interview. “They go through pregnancy and hormonal changes.”
Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer’s and other forms of age-related brain decline.
“When people think about pregnancy, they think about what happens to babies and the mother from the neck down,” said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida.
“They do not realize that hormones are washing on the brain. If you look at female animals who have never gone through pregnancy, they act differently toward young. But if she goes through pregnancy, she will sacrifice her life for her infant—that is a great change in her behavior that showed in genetic alterations(改变) to the brain.”
1.How do scientists know “Motherhood may make women smarter”?
A.Some researchers have told them.
B.Many women say so.
C.They know it by experimenting on rats.
D.They know it through their own experience.
2.What does the phrase “litters of pups” mean in the second paragraph?
A.Baby rats. B.Animals. C.Old rats. D.Grown-up rats.
3.What can protect the brain of a woman according to the passage?
A.Estrogen. B.The hormones of pregnancy.
C.More exercise. D.Taking care of children.
4.“It’s rat data but humans are mammals just like these animals are mammals.” What does the sentence suggest?
A.The experiments on the rats have nothing to do with humans.
B.The experiments on the rats are very important for animals.
C.The experiments on the rats are much the same on humans.
D.The experiments on the rats are much the same on other animals.
高三英语阅读理解中等难度题查看答案及解析
Motherhood may make women smarter and may help prevent dementia(痴呆) in old age by bathing the brain in protective hormones(荷尔蒙) , U.S.researchers reported on Thursday.
Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies, and their brains show changes that suggest they may be protected against diseases such as Alzheimer’s(早老痴呆症).University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.“Our research shows that the hormones of pregnancy(怀孕) are protecting the brain, including estrogen(雌激素), which we know has many neuroprotective (保护神经的) effects,” Kinsley said.
“It’s rat data but humans are mammals just like these animals are mammals,” he added in a telephone interview.“They go through pregnancy and hormonal changes.” Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer’s and other forms of age-related brain decline.
“When people think about pregnancy, they think about what happens to babies and the mother from the neck down,” said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida.
“They do not realize that hormones are washing on the brain.If you look at female animals that have never gone through pregnancy, they act differently toward young.But if she goes through pregnancy, she will sacrifice her life for her infant—that is a great change in her behavior that showed in genetic alterations(改变) to the brain.”
1.How do scientists know “Motherhood may make women smarter”?
A.Some researchers have told them. |
B.Many women say so. |
C.They know it by experimenting on rats. |
D.They know it through their own experience. |
2.What does the phrase “litters of pups” mean in the second paragraph?
A.Baby rats. | B.Animals. | C.Old rats. | D.Grown-up rats. |
3.What can protect the brain of a woman according to the passage?
A.Estrogen. |
B.The hormones of pregnancy. |
C.More exercise. |
D.Taking care of children. |
4.“It’s rat data but humans are mammals just like these animals are mammals.” What does the sentence suggest?
A.The experiments on the rats have nothing to do with humans. |
B.The experiments on the rats are very important for animals. |
C.The experiments on the rats are much the same on humans. |
D.The experiments on the rats are much the same on other animals. |
5.Which title is the best for this passage?
A.Do You Want to Be Smarter? |
B.Motherhood Makes Women Smarter |
C.Mysterious Hormones |
D.An Important Study |
高三英语阅读理解中等难度题查看答案及解析
PALO ALTO, California------"Switching off the television may help prevent children from getting fatter------ even if they do not change their diet or increase the amount they exercise," US researchers said last week.
A study of 192 third and fourth graders, generally aged eight and nine, found that children who cut the number of hours spent watching television gained nearly two pounds(0.9kg) less over a one-year period than those who did not change their television diet.
"The findings are important because they show that weight loss can only be the result of a reduction in television viewing and not any other activity," said Thomas Robinson, a pediatrician(儿科专家) at Stanford University.
"American children spend an average of more than four hours per day watching television and videos or playing video games, and rates of childhood being very fat have doubled over the past 20 years," Robinson said.
In the study, presented this week to the Pediatric Academic Societies‘ annual meeting in San Francisco, the researchers persuaded about 100 of the students to reduce their television viewing by one-quarter to one-third.
Children watching fewer hours of television showed a significantly smaller increase in waist size and had less body fat than other students who continued their normal television viewing, even though neither group ate a special diet or took part in any extra exercise.
"One explanation for the weight loss could be the children unstuck to the television may simply have been moving around more and burning off calories," Robinson said.
"Another reason might be due to eating fewer meals in front of the television. Some studies have suggested that eating in front of the TV encourages people to eat more," Robinson said.
1.The author tries to tell us in the first two paragraphs that ________.
A.children will get fatter if they eat too much |
B.children will get thinner if they eat less |
C.children will get fatter if they spend less time watching TV |
D.children will get fatter if they spend more time watching TV |
2.According to the passage, the time American children usually spend on watching TV_____.
A.is more than four hours a day | B.is less than four hours a day |
C.doubled in the last twenty years | D.is more than on any other activities |
3. The time children spend on TV viewing every day is suggested to be about ________.
A.six hours | B.eight hours | C.three hours | D.one hour |
4.Which one of the following is right?
A.Children usually eat fewer while watching TV. |
B.Children usually eat more while watching TV. |
C.Children eat the same amount of meals while watching TV. |
D.Children usually eat nothing while watching TV. |
5.Why can watching TV increase kids’ weight according to the passage?
A. They usually eat more while watching TV.
B. They burn off fewer calories.
C. They change their diet while watching TV.
D. Both A and B.
高三英语阅读理解中等难度题查看答案及解析
Google announced new features to make devices smarter and more useful to open its yearly developers' conference. The announcements came at Google's I/O 2018 conference in Mountain View, California.
Google Duplex
"So what you're going to hear is the Google Assistant actually calling a real barber’s to schedule the appointment for you.
Hello, how can I help you?
Hi, I'm calling to book a woman's haircut for a client. I'm looking for something on May 3rd.
Sure, give me one second.
Mm-hmmm.
That was a real call you just heard."
Google Chief Pichai said the demonstration was the result of the company's research and development over many years in the areas of natural language, deep learning and text-to-speech. Google calls the technology Duplex. The idea is to create machines that sound and act more human-like in interactions with people.
Continued Conversation
Another new feature related to Assistant is called Continued Conversation. Until now, users have had to say "Hey Google" each time they asked a question or wanted help. But now, a user can issue more than one command – such as a follow-up question – for up to eight seconds, and Assistant will answer.
Gmail Smart Compose
The latest new tool for Gmail is an auto-complete feature called Smart Compose. It uses AI to suggest ways to finish sentences as they are written. For example, "I haven't seen you" might be auto-completed to "I haven't seen you in a while and I hope you're doing well."
Digital Wellbeing
Google says it recognizes many users are trying to find the right balance in life with technology. Sometimes they would like to break away from their devices to be able to spend time "on better things." New features with this in mind can help users prevent overuse of technology.
A Dashboard will provide users detailed information about how much time they are spending on which parts of their device. When the device is placed face down, a new feature will put the device on hold and silence it so the user can center on other things. A Wind Down Mode feature can let users enter the time they want to go to bed. At that time, the device will again go silent and the front of the device will dim to help users disconnect before bed.
1.What does the small dialogue mean in Google Duplex?
A. Google Chief Pichai calls his assistant to arrange an appointment for him.
B. Google’s digital assistant sets a haircut appointment for someone all by itself.
C. An assistant in Google sets a haircut appointment for a woman.
D. That wasn’t a real call the receiver had heard.
2.What can we learn about Digital Wellbeing?
A. It can find the right balance in work.
B. It may automatically go silent while the screen is still bright.
C. It can tell how much time is being spent on parts of the device.
D. When one feature is operating long enough, a new one will disappear.
3.If you are poor in writing compositions, you probably like________.
A. Continued Conversation B. Google Maps - Augmented Reality
C. Google Duplex D. Gmail Smart Compose
高三英语阅读理解中等难度题查看答案及解析
Every year, TIME selects the best inventions that are making the world better, smarter and — in some cases—a little more fun. Here’s which ones made this year’s unranked list.
●Morpher
People refuse to wear a helmet because they’re thick and bulky. Morpher, a bike helmet made from interweaved plastics that is just as strong as its traditional helmets, but flexible enough to fold almost totally flat, making it easier to transport. Morpher has raised almost $300,000 on Indiegogo and may be available for sale in stores in future.
● Hyper Adapt
Almost everyone who sees the movie Back to the Future wants a pair of self-lacing shoes. Now, thanks to Nike, the shoe dream is a reality. When wearers press a button near the tongue, the Hyper Adapt 1.0s automatically tighten and loosen around their foot. Simplified shoe fastening could give users an edge during sports competition, and it’s especially useful for people with impaired(受损的) motor function.
●Hello Sense
It's hard to believe that an alarm clock could not only be beautiful but also improve your sleep. That it could monitor the temperature, humidity(湿度), light and even air quality in your bedroom to help you engineer a perfect sleep environment. That it could monitor your sleep cycles and wake you when you’re least likely to feel groggy—all thanks to simple voice commands.
●Eatwell Assistive Tableware
It is hard for Alzheimer’s patients to use silverware without spilling. Eatwell Assistive Tableware is a dining set designed to make mealtime easier for people with Alzheimer’s and other diseases that affect brain and body function. The tableware uses bright colors to help people distinguish their plates from their food and putting wide rubber bases on the cups to prevent spills.
1.What is the advantage of Morpher over traditional helmets?
A. It is portable. B. It is safer.
C. It is stronger. D. It is folding and light.
2.Who may like Hyper Adapt most?
A. Athletes. B. Officer workers.
C. Taxi drivers. D. Regular travelers.
3.What does the underlined word “groggy” in Paragraph 3 mean?
A. Energetic. B. Dizzy.
C. Tiring. D. Uncomfortable.
4.What invention is unavailable on the market at present?
A. Hyper Adapt. B. Morpher.
C. Hello Sense . D. Eatwell Assistive Tableware.
高三英语阅读理解中等难度题查看答案及解析
Inventions make the world better, smarter and even a little bit more fun. Last year, in November, Time magazine published "2018 Top 50 inventions". Here are three of the most interesting inventions for you. Let's take a look.
Lifepack Carry-on Closet
In many cases, traveling is fun, but packing can be quite annoying. No matter how neatly you pack your clothes, you always end up having to pull out everything in order to find what you need. Well, the Lifepack Carry-on Closet designed by the Danish startup Solgaard Design might change that for good.
From the outside, the Lifepack looks like an ordinary suitcase. But inside, it contains a set of retractable shelves to keep clothes in good order and maximize the space. Its shelf system has many extra pockets and is removable. So when you get to your destination, you just need to take out the shelf system and hang it in your hotel closet.
LynQ
Becoming separated from friends in crowds or losing contact with your family in a strange place can be a nightmare.
But now, LynQ, a new location tracker, has a fix.
When you wear LynQ, you use a combination of GPS technology and long-range radio frequencies to find other LynQs to a distance of up to 5 kilometers from you. In addition, an onscreen dot points each user in the right direction, like a compass.
As Time notes, "LynQ solves the three Ws: No more worrying, wandering or waiting around. "
Gravity jet suit
If you're a big fan of Iron Man, you must have been impressed by his amazing jet suit. Now, there is a real gravity jet suit for us to try.
Developed by London-based technology company Gravity Industries, the flying suit is equipped with five power engines—four are built into units close to the hands and one is built into a backpack.
If these engines fuel together, they can provide 1,050 horsepower to make the wearer move at a speed of up to 51 kilometers per hour. So, for people who can balance with the suit on, it's easy to fly.
1.From the description of LynQ, we can learn that_________.
A.it is a traditional advanced GPS system B.it is a wearable device
C.it is based on a compass D.it makes its users worry-free
2.Which of the following statements is TRUE?
A.It's easy for people to fly because Gravity jet suit can provide adequate power.
B.You won't worry about losing touch with your family once you wear LynQ.
C.Lifepack Carry-on Closet can make packing easier with unique design.
D.Traveling will become more convenient and cozier with the three inventions.
3.What's the purpose of the passage?
A.To introduce some interesting inventions. B.To comment on the latest technology.
C.To appeal to more consumers. D.To promote some creative products.
高三英语阅读理解中等难度题查看答案及解析
(2013·湖北,22)Carbon dioxide, which makes a________between us and the sun, prevents heat from getting out of the atmosphere easily, so the earth is becoming warmer.
A.difference B.comparison
C.connection D.barrier
高三英语单项填空中等难度题查看答案及解析
(2013·高考湖北卷)Carbon dioxide,which makes a________between us and the sun,prevents heat from getting out of the atmosphere easily,so the earth is becoming warmer.
A.difference B.comparison
C.connection D.barrier
高三英语单项填空中等难度题查看答案及解析