1.学生近视率状况描述;
2.简单评论;
3.你的建议。注意:
1.词数80左右;
2.短文题目和首句已为你写好,不计入总词数。
Protecting our eyes to enjoy a bright world
The health of children’s vision is facing a growing threat.
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2 . How tall are you? Do you tower over your friends and family - or are they people you literally have to look up to?
Of course, our height is out of our control.
In a recent study scientists have discovered a brain receptor, called MC3R, linked to our growing process.
For those eager to be taller, we need to look at the Dutch, who stand head and shoulders above the rest of us as the tallest people in the world. But, of course tall people have to stoop (俯身) through doorways and struggle to fit in cars and can have joint and cardiovascular problems.
A.Are you getting as tall as you want to be? |
B.It’s a biological fact influenced partly by genetics. |
C.So maybe we should be careful for what we wish for. |
D.Obviously, we’re not all the same, and size doesn’t really matter. |
E.It’s thought to be the crucial link between food and sex development and growth. |
F.There is a ceiling for height, and it’s reached when people achieve their genetic potential. |
G.If this makes you want to be taller, it’s good to know we are taller than we were 150 years ago. |
3 . Back pain can make it difficult for many people to function in everyday life.
Our bodies need adequate movement throughout the day to avoid the stiffness that contributes to aches and pains. If the weather is good, don't hunt for the nearest parking spot; don't take the elevator when you have the option of one or two flights of stairs. When you need to sit for long periods, set a timer to get up every hour and be active for just a few minutes.
When we overuse our dominant side, we create muscle patterns of weakness and tension that increase pain, especially in our backs. Consider the actions you take repeatedly throughout the day that shift your weight to one side.
Psychological stress is a noted risk factor for back pain, according to research. Most mental stress is caused by focusing on the past or future.
A.Switch sides when you carry things. |
B.It affects how you move, feel and think. |
C.You should learn more about the cause of your pain. |
D.Approach the health of your back as a responsibility. |
E.So actively being mindful of the present reduces stress. |
F.You'd better take a quick break to check in with your breathing. |
G.More minutes of movement add up to big health benefits over time. |
4 . If there was an app on your phone that claimed to improve your memory, would you be willing to try it? It’s hard to resist the idea of having a better memory. After all, our memories are delicate and can be affected by various factors such as diseases, injuries, mental health conditions, and aging.
In response to this perceived need, the brain training industry has grown rapidly, offering a wide range of accessible and affordable mental exercises through smartphone and tablet apps. Many researchers have found evidence suggesting that well-designed exercises can improve mental abilities and even lead to better scores on IQ tests. They compare the brain to muscles, suggesting that targeted repetition of memory exercises can strengthen and condition our memory processes, similar to how athletes engage in strength and conditioning by repeatedly exercising specific muscle groups.
In contrast to everyday activities like reading a detailed article or solving a complex puzzle, memory training apps are specifically designed to provide a more challenging workout for the brain. These apps typically involve tasks that require tracking a large number of objects while being distracted by a secondary task, such as mental calculations or exploring a game’s landscape. If this brain training proves effective, it could be beneficial for individuals with brain-related disabilities or those recovering from conditions like cancer.
Critics, though, argue that while the concept is appealing, the overall evidence fails to demonstrate significant improvement in core brain processes. Additionally, despite the claims made by many apps and brain training companies, scientists have yet to identify the key factors that make an intervention truly effective or determine the best approaches to address the diverse needs of individuals seeking help.
While the question is still open to debate, there is evidence suggesting that short-term working memory training can benefit high-functioning individuals, such as college students. However, it’s important to note that brain training, like diet and exercise, is unlikely to have identical effects on every individual.
1. In what way is the brain similar to muscles according to many researchers?A.In testing results. | B.In work processes. |
C.In bodily functions. | D.In training methods. |
A.Detailed. | B.Effective. | C.Demanding. | D.Complicated. |
A.Legal claims. | B.Proven effects. | C.Tailored services. | D.Appealing concepts. |
A.Can our memory be improved? |
B.Does brain training actually work? |
C.What have scientists found about memory? |
D.What does the brain training industry bring? |
5 . Eyesight plays a very important role in our daily life. Every waking moment, the eyes are working to see the world around us. Over forty percent of Americans worry about losing eyesight, but it's easy to include steps into our daily life to ensure healthy eyes. Here are five suggestions for a lifetime of healthy eyesight:
Schedule yearly exams.
Protect against UV rays .
Long-term stay in the sun creates risk to your eyes. No matter what the season is, it’s extremely important to wear sunglasses.
Two-thirds of Americans spend up to seven hours a day using computers or other digital products.
As part of a healthy diet, eat more fruits and vegetables each day. Vitamins C and E help protect eyesight and promote eye health.
Practice safe wear and care of contact lenses.
Many Americans use contact lenses to improve their eyesight. While some follow the medical guidance for wearing contact lenses, many are breaking the rules and putting their eyesight at risk.
Otherwise: you may have problems such as red eyes, pain in the eyes, or a more serious condition.
A.Eat your greens. |
B.Eye care should begin early in life. |
C.They can properly protect your eyes. |
D.Stay in good shape by taking more vitamins. |
E.Parents usually don’t care about their own eyesight. |
F.Always follow the doctor’s advice for appropriate wear. |
G.This frequent eye activity increases the risk for eye tiredness. |
6 . In English it’s common to say, “I know this town like the back of my hand!” While we may know our towns really well, how well do we actually know our hands? Maybe not quite as well as we think, said a scientific study.
Matthew Longo and his team from University College London studied the left hands of 100 people. With their hands placed palms down under a board, Longo’s team gave the instruction to point to their knuckles and fingertips with a marker. How did they do? Not that well.
“People think their hand is wider than it actually is,” said Longo. He said they also seemed to think their fingers were shorter than their true lengths. People were most accurate when finding their thumbs, but became less accurate with each finger, up to their little fingers.
“It is connected to our sense of position,” explained Longo. Humans know where different parts of our bodies are, even if we can’t see them. “It tells us whether a joint is straight or not,” said Longo. “We also need to know the distances between our joints,” he went on. Our brains know the sizes and shapes of our bodies from the maps they make for themselves. “This experiment tried to find those maps,” he said.
Maybe maps don’t need to be perfect. But why aren’t our brains more accurate? Longo said our brains “see” areas based on our sense of touch, with the stronger the sense of touch in a specific body part, the bigger that body part seems. An example is our lips. As they have more nerves than our noses, our brain’s map shows our lips are bigger. The same thing can happen with body parts that have a lot of nerves. If you’ve ever had something stuck in your teeth, it probably felt huge! That’s because our tongues also have lots of nerves.
If you want to have some fun, try this test with your classmates. Get some boards and some markers and have them mark the spots where they think their knuckles and fingertips are. Compare their hands to the marker spots and see how well they have performed.
1. Why is the saying mentioned in Para. 1?A.To test readers. | B.To serve as a topic. | C.To prove a scientific study. | D.To attract readers’ interest. |
A.Thumbs are bigger. | B.Thumbs are much stronger. |
C.Thumbs may have more nerves. | D.Thumbs may have strong sense of position. |
A.Sizes. | B.Brains. | C.Shapes. | D.Maps. |
A.To find the maps in human brains. | B.To draw the maps in human brains. |
C.To figure out how different senses cooperate. | D.To help people locate their body parts accurately. |
A.Tied. | B.Dizzy. | C.Thirsty. |
8 . What is the best sleep position for your health?
It’s difficult to control what sleeping position we naturally fall into, as our body will subconsciously all into the most comfortable position for us. However, some positions are better for you than others and come could hold back your health and wellbeing.
If you sleep on your side
More than 60 per cent of people sleep on their side. Often our body naturally moves to this position, which is linked to when we were in the womb in the foetal(胎儿的) position.
If you sleep on your back
Lying on your back is the second most popular sleeping position and offers just as many benefits as side sleeping. When you’re sleeping on your back, it’s easy to keep alignment and to also evenly distribute your weight.
If you sleep on your stomach
Sleeping on your stomach is the least common sleeping position.
A.This also helps to prevent any neck and back pain. |
B.Sleeping on your side is probably the best position |
C.Side sleeping would be particularly beneficial for older people. |
D.There are more negatives to this position compared to positives. |
E.Determining the sleeping position for you is personal preference. |
F.Here, this article reveals exactly how your sleep position is affecting your health. |
G.This is mostly likely because it is one of the most comfortable sleeping positions. |
9 . It is reported that the sense of smell plays a dominant role in the social interactions of all land animals except humans. Then the question arises: Is this because humans don’t use their noses in social settings the way all other land animals do? Or is this behavior covert (隐蔽的), rather than overt, in humans?
In fact, this is exactly what Inbal Ravreby, a graduate student in Prof. Noam Sobel’s laboratory in Weizmann’s Brain Sciences Department, tried to answer. And as several lines of evidence suggest that humans are constantly, although mostly subconsciously, sniffing themselves and others, Ravreby supposed that the latter is the case.
To test her hypothesis, Ravreby conducted the study with pairs of click friends: same-sex nonromantic friends whose friendships had originally formed very rapidly. Because such friendships emerge prior to an in-depth acquaintance, they may be particularly influenced by physiological characteristics such as body smell. She then collected body smell samples from these click friends and conducted two sets of experiments to compare the samples with those collected from random pairs of individuals. In one set of experiments, she performed the comparison with a device known as an electronic nose, or eNose, which assessed the chemical signatures of the smells. In the other, she asked volunteers to smell the two groups of body smell samples in order to assess similarities measured by human perception. In both types of experiments, click friends were found to smell significantly more like each other than the individuals in the random pairs.
Next, to rule out the possibility that body smell similarity was a consequence of click friendships, rather than a contributing cause, Ravreby performed an additional set of experiments, in which she used the eNose to “smell” a number of volunteers who were complete strangers to one another, and then asked them to engage in nonverbal (非言语的) social interactions in pairs. After each such structured interaction, the participants rated the other individual in terms of how much they liked that person. Subsequent analysis revealed that the individuals who had more positive interactions indeed smelled more like each other, as determined by the eNose.
“These results imply that, as the saying goes, there is chemistry in social chemistry,” Ravreby concludes. However, Sobel offers words of caution, “This is not to say that we act like dogs or goats — humans likely rely on other, far more dominant signals in their social decision-making. Nevertheless, our study’s results do suggest that our nose plays a bigger role than previously thought in our choice of friends.”
1. What did Inbal Ravreby want to figure out?A.Whether humans have a sharp sense of smell. |
B.Whether humans’ noses can detect all types of smells. |
C.Whether it is necessary for humans to sniff other people. |
D.Whether the sense of smell plays a role in humans’ interaction. |
A.The way to make comparisons. | B.The participation of random pairs. |
C.The way volunteers used the eNose. | D.The number of pairs of click friends. |
A.To determine the reliability of the finding. |
B.To avoid interactions between click friends. |
C.To make the experiments much more interesting. |
D.To test the accuracy of the eNose in smell analysis. |
A.Disapproving. | B.Doubtful. |
C.Positive. | D.Indifferent. |