Why is a full moon, yellower and bigger when it is coming up than when it is higher in the sky?
That's a good question about something that we all can see. Let's talk about the moon's color first.
We see the moon only because of the sunlight that falls on it and is reflected. Actually, the moon is not a very good reflector, because its surface is all rocks and dirt. We see it in almost its true color when it is high in the sky.
When the moon first comes up, its light reaches our eyes after an extra-long path through the atmosphere (大气). There are lots of particles (微粒) scattering (分散) light in that long path. Blue light is scattered more than other colors, which means that it doesn't reach your eyes. The light that is left over looks yellow to your eye.
Now about the other question—why the moon seems to change in size. That's more complicated. It's not an effect of the atmosphere, the way color is; it's not caused by something fooling your eyes. It seems, instead, to be caused by something that fools your brain—an illusion(错觉).
Here's a drawing that creates an illusion. The two cones(圆锥体) are really the same size. But the rest of the drawing makes the right-hand cone seem farther away. Your brain knows that faraway objects are really larger than they look. It decides that the right-hand cone must be larger because it seems to be farther away.
Similarly, when you see the moon just come up over a line of trees or houses—or whatever makes the horizon(地平线)—it may be that your brain decides that the moon must be larger because it seems to be farther away.
1.The moon doesn't reflect the sunlight very well because________________.
A.it is high in the sky B.its surface is rough
C.its surface is white D.it isn't a good reflector
2.Which statement is true according to the passage?
A.In the course of its rising, the moon is getting smaller and smaller
B.The size of the moon is more complicated than its color
C.The atmosphere has the same effect on the moon's size as on its color
D.The change in the moon's size is caused by an illusion while that in its color is caused by the atmosphere
3.After reading this passage, you can possibly answer one of the following questions. Which one? ______.
A.Why is the sun bigger when it rises over the horizon?
B.Why does the sun look bigger when it rises over the horizon?
C.Why does the sun look golden?
D.Why does the sun rise in the east?
4.Who do you think probably wrote this passage?________.
A.A novelist B.A reporter
C.A science editor D.An English teacher.
高一英语阅读理解中等难度题
Why is a full moon, yellower and bigger when it is coming up than when it is higher in the sky?
That's a good question about something that we all can see. Let's talk about the moon's color first.
We see the moon only because of the sunlight that falls on it and is reflected. Actually, the moon is not a very good reflector, because its surface is all rocks and dirt. We see it in almost its true color when it is high in the sky.
When the moon first comes up, its light reaches our eyes after an extra-long path through the atmosphere (大气). There are lots of particles (微粒) scattering (分散) light in that long path. Blue light is scattered more than other colors, which means that it doesn't reach your eyes. The light that is left over looks yellow to your eye.
Now about the other question—why the moon seems to change in size. That's more complicated. It's not an effect of the atmosphere, the way color is; it's not caused by something fooling your eyes. It seems, instead, to be caused by something that fools your brain—an illusion(错觉).
Here's a drawing that creates an illusion. The two cones(圆锥体) are really the same size. But the rest of the drawing makes the right-hand cone seem farther away. Your brain knows that faraway objects are really larger than they look. It decides that the right-hand cone must be larger because it seems to be farther away.
Similarly, when you see the moon just come up over a line of trees or houses—or whatever makes the horizon(地平线)—it may be that your brain decides that the moon must be larger because it seems to be farther away.
1.The moon doesn't reflect the sunlight very well because________________.
A.it is high in the sky B.its surface is rough
C.its surface is white D.it isn't a good reflector
2.Which statement is true according to the passage?
A.In the course of its rising, the moon is getting smaller and smaller
B.The size of the moon is more complicated than its color
C.The atmosphere has the same effect on the moon's size as on its color
D.The change in the moon's size is caused by an illusion while that in its color is caused by the atmosphere
3.After reading this passage, you can possibly answer one of the following questions. Which one? ______.
A.Why is the sun bigger when it rises over the horizon?
B.Why does the sun look bigger when it rises over the horizon?
C.Why does the sun look golden?
D.Why does the sun rise in the east?
4.Who do you think probably wrote this passage?________.
A.A novelist B.A reporter
C.A science editor D.An English teacher.
高一英语阅读理解中等难度题查看答案及解析
Did you ever look up at the moon and think you saw a man’s face there? When the moon is round and full, the shadows(影子) of the moon mountains and the lines of the moon valleys sometimes seem to show a giant nose and mouth and eyes. At least, some people think so.
If there were a man on the moon—instead of mountains and valleys that just look like the face of a man—what would he be like?
He would not be like anyone you know. He would not be like anyone anybody knows.
If the man on the moon were bothered by too much heat or cold the way Earth people are, he could not stay on the moon.
The moon becomes very, very hot. It becomes as hot as boiling water. And the moon becomes very, very cold. It becomes colder than ice.
Whatever part of the moon the sun shines on is hot and bright. The rest of the moon is cold and dark.
If the man on the moon had to breathe to stay alive, he couldn’t live on the moon because there’s no air there. He’d have to carry an oxygen tank, as astronauts do. There’s no food on the moon, either. Nothing grows—not even weeds(grass).
If the man on the moon liked to climb mountains, he would be very happy. There are many high places there, such as the raised land around the holes, or craters(火山口), of the moon. Some of these rims are as tall as Earth’s highest mountains.
But if the man on the moon liked to swim, he would be unhappy. There is no water on the moon—just dust and rock.
When you think of what it’s like on the moon, you may wonder why it interests our scientists. One reason is that the moon is Earth’s nearest neighbor—it is the easiest place in space to get to.
Going back and forth between the moon and Earth, astronauts will get a lot of practice in space travel. Things learned on moon trips will be of great help to astronauts who later take long, long trips to some of the planets.
Scientists are also interested in the moon because it has no air. The air that surrounds Earth cuts down the view of the scientists who look at the stars through telescopes. A telescope on the moon would give them a clearer, closer view of the stars.(words: 411)
1.What is the reason why our scientists are interested in the moon.?
A.The moon is beautiful.
B.The moon is different from the earth.
C.The moon is Earth’s nearest neighbor—it is the easiest place in space to get to.
D.The moon is the easiest place in space to get to and it has no air, unlike Earth.
2.The underlined word “rim” in the Paragraph 8 means _________ .
A.ball B.hill C.round edge D.height
3.What is the main thought of the passage?
A.We can learn much from research on the Moon.
B.There may be human beings on the moon.
C.If there were a man on the Moon, there would be many similarities between the man on the Moon and on the Earth.
D.A telescope on the Moon would help scientists have a clearer, closer sight of the stars.
高一英语阅读理解中等难度题查看答案及解析
Happiness is very importance in my daily life. This is why it makes me feel cheerful, and full joy.
If you felt happy, you will make others feel good. When I don’t feel cheerful, I try to remember good moments to making me feel better. When I miss some friends or family member I also try to remember those happy moments we were spent together. In my opinion, the best way to help people be happy in life are to make them laugh every time we are feeling down. Also by give them love you can make them feel sure about themselves.
高一英语短文改错中等难度题查看答案及解析
Why is volunteering important?
When it comes to service work, it is important to realize that the actual goal should be getting the most out of your volunteering work. 1.
Gaining new/social experiences.
Volunteering allows students to get involved with new things and develop social and academic skills that couldn’t be learned in a classroom environment.2.
Giving back and helping others.
Volunteers create better environments for others—they create healthier communities and they brighten lives. Jill, a senior student, had been a volunteer in her community(社区) for more than three years.3. “They always tell me how great we sound and how they wish they had taken time to learn an instrument in their youth.”
Creating connections with people.
4. Not only does the volunteer work you do show who you are as a person, but it reflects many positive qualities that possible employers and admission officers want to see. Volunteering allows you to meet a wide variety of people from all sorts of walks of life.
5.
Volunteering isn’t one of the most attractive jobs, but it is one of the most beneficial and uplifting(令人振奋的). It’s taking some time out of your day to help others. Volunteer work makes us feel good. It builds self-confidence and lifts up the spirits.
A. Building career choices.
B. Raising the spirits.
C. Volunteering means a lot more.
D. Building relationships with people is very important.
E. Volunteering is an excellent way to improve your independence.
F. She volunteers by performing in concerts for senior citizens.
G. Volunteering allows you to experience different environments and situations.
高一英语七选五中等难度题查看答案及解析
Why Do We Forget Things?
When it comes to having perfect memories, it is apparent that we humans must have had some faults in our blueprints(蓝图)! Why don’t we remember everything that we want to remember? It makes us feel upset and get discouraged. 1. However, it’s true that we are all forgetful.
2.These are stored in what we call our “long-term memory”. What about before age three? Sigmund Freud, a doctor of Vienna, discovered the fact that we forget most of our early childhood. 3.They have different opinions. A very good theory, born from the results of experimentation with babies, is that absence of language ability at the time of an event stopped us from describing it to others.
4. Experts say that you can keep about seven things in your memory at once for up to three days. During that time, you may forget something in order to put something else in its place, or you put it into long-term memory. What goes into short-term memory are things you’ve learned about recently, in the past day or two. 5.For example, you may have met your favorite star last week, and this week you can tell all the details to a friend. A simple example to explain your short-term memory is to look at a list of twenty words for a minute or two. You will discover that you cannot remember more than about seven of them and that they are the ones in the beginning and at the end of the list because your mind has judged them to be more important than those in the middle.
A.Scientists now know that it may take longer to remember things for the old.
B.However, it is widely recognized that short-term memory can be improved.
C.Sometimes, it even causes us to lose self-respect or others to think less of us.
D.Psychologists have been studying what causes this forgetfulness since Freud’s time.
E.Most of us have vivid memories of our lives from about age three to our present ages.
F.Only if something really unusual happens does it stay in your short-term memory for longer.
G.The other type of memory, the “short-term memory”, is what we are usually referring to when we say, “I forgot.”
高一英语七选五中等难度题查看答案及解析
When it comes to bringing up children, everybody agrees that it is not an easy task. Every parent watches eagerly the child’s acquisition (学会) of each new skill — the first spoken words, the first independent steps, or the beginning of reading and writing. It is often tempting (吸引人的) to hurry the child beyond his natural learning speed, but this can set up dangerous feelings of failure and states of worry in the child. This might happen at any stage. A baby might be forced to learn something too early. A young child might be encouraged to learn to read before he knows the meaning of the words he reads. On the other hand, though, if a child is left alone too much, or without any learning chances, he loses his natural enthusiasm for life and his desire to find out new things for himself.
Parents vary greatly in their degree of strictness towards their children. Some may be especially strict in money matters. Others are strict with the time of coming home at night or being on time for meals. In general, the controls show the needs of the parents and values (价值观) of society as much as the children’s own happiness.
When it comes to the development of moral standards (道德标准) in the growing child, consistency (前后一致性) is very important in parental teaching. To say “No” to a thing one day and excuse it the next is no foundation for morality (道德). Also, parents should realize that “example is better than precept”. If they are not sincere and do not practice what they preach (说教), their children may grow confused and emotionally insecure when they grow old enough to think for themselves, and realize they have been to some extent cheated.
A sudden realization of a big difference between their parents’ principles and their morals can be a dangerous disappointment.
1.Eagerly watching the child’s acquisition of new skills ___________.
A. is common among parents
B. should be avoided
C. sets up dangerous states of worry in the child
D. will make him lose interest in learning new things
2.In the process of children’s learning new skills parents _____________.
A. should encourage them to read before they know the meaning of the words they read
B. should neither push them too hard nor leave them alone too much
C. should not expect too much of them
D. should create as many learning opportunities as possible
3.The underlined word “precept” in Paragraph 3 probably means __________.
A. idea B. instruction C. behavior D. punishment
4.In moral matters, parents should _______________.
A. consistently make sure of the security of their children
B. realize the big difference between adults and children
C. say “No” to the things that have no foundation in morality
D. obey the rules themselves
高一英语阅读理解中等难度题查看答案及解析
—Is it necessary to look up every new word when I come across it in reading?
—No. You ________, because you are likely to guess the meaning from the context.
A.can't B.mustn't
C.don't have to D.ought not to
高一英语单项填空中等难度题查看答案及解析
When a big exam is coming up, you probably feel anxious about any wasted time and want to begin school as soon as you probably can.
But tens of thousands of British high school students will soon be getting up later. They’re taking part in a new experiment by Oxford University to see if later classes can improve their exam results.
Grades 10 students in the UK have to take the nationwide General Certificate of Secondary Education (GCSE) exams. They have to pass these exams in order to study more advanced courses, and later apply for universities.
The Oxford University project means that GCSE students from more than 100 schools across England will start school at 10 am, more than one hour later than the current start time (8:50 am).
The project is based on scientific evidence that teenagers are “out of sync(同步)” with traditional school hours, the Telegraph reported. And what they need is more sleep in the morning.
“We know that something funny happens when you’re a teenager, in that you seem to be out of sync with the world,” said professor Colin Epsie, who is leading the study. “Your parents think it’s because you are lazy and opinionated(固执己见的)and everything will be OK if you could get to sleep earlier. But science is telling us that teenagers need to sleep more in the mornings.”
Everyone follows a natural cycle of sleep and wakefulness. Biology has decided that teenagers go to sleep around midnight and don’t feel fully awake until 9-10 am, according to scientists. That’s two hours later than adults. And their body clocks stay like this until the age of around 21 for males, and 19 for females.
“Society provides school for learning, but the brain provides sleep. So we are exploring the possibility that if you delay the schools start time until 10 am, that will improve learning performance,” said Epsie.
The results could be positive, based on previous studies.
An early study at the UK’s Monkseaton High School in 2009 found that starting an hour later improved grades in core subjects by 19 percent.
The Oxford project is expecting to publish the results in 2018. It’s time to wait and see whether scientists will give us an excuse to get up late.
1.According to the article, students who take part in the Oxford University project_______.
A.will start school one hour earlier
B.will be guaranteed more sleeping time in the morning
C.will perform better academically than those who don’t participate
D.will no longer have to take GCSE exams
2.We can infer from the article that ________ .
A.children and adults have different natural cycles of sleep and wakefulness
B.getting up late is a sign of laziness in the eyes of most British parents
C.the Oxford University project is targeted at all British high schools
D.there is still no scientific evidence that supports a late school start time
3.What is the author’s attitude toward the Oxford University project ?
A.Critical B.Uninterested
C.Optimistic D.Doubtful
4.What’s the best title of the article ?
A.It’s never too late to learn B.An excuse to get up late
C.The later you get up, the better you’ll learn D.Wake up late to excel
高一英语阅读理解中等难度题查看答案及解析
What ____ fun it is to walk alone with ______ full moon hanging in the sky.
A. /; a B. a; / C. the; / D. a ;the
高一英语单项填空中等难度题查看答案及解析
Scientists investigated why Ebola virus is so deadly when it spreads from animals to humans and then from human-to-human contact. The research team looked at the Zaire Ebola virus in an animal system to understand how it gains strength. This virus is responsible for the current outbreak in West Africa. They found that initially the animal systems were not affected by the virus, but succeeding transmission(传送) into other animals caused the virus to “hot up” and become more severe.
The team analyzed the viruses at different stages and were able to identify several changes in its genetic material that were associated with increased disease.
Professor Julian Hiscox, who led the study from the University’s Institute of Infection and Global Health, explains: “The work tells us that the evolutionary goal of Ebola virus is to become more fatal.”
“We were able to show through genetic analysis which parts of the virus are involved in this process. The information we have gathered will now allow us to monitor for such changes in an outbreak as well as develop future treatment strategies.”
Professor Roger Hewson, leading the study from Public Health England, Porton Down, said: “Ebola virus is such a destructive infection to the people affected by the disease and the economy of West Africa.”
“Our understanding of Ebola virus biology is way behind that of other viruses and our cooperation shows how we can bring together our specialists’ skills to close this knowledge gap.”
Professor Miles Carroll, a co-author of the work, said: “This study has allowed the team to be at the forefront of developing methodologies to analyze patient samples recently taken by the European Mobile Laboratory from West Africa to understand disease evolution during the current outbreak.”
1.What does the first paragraph mainly tell us?
A. How severe Ebola virus is.
B. How Ebola virus spreads.
C. How Ebola virus gradually becomes deadly.
D. What contributions scientists have made on Ebola virus.
2.Which of the following statements is mentioned in the passage?
A. In the first stage, the virus hurts its victims much.
B. As the virus spreads, it’ll change and become more and more deadly.
C. The research in Ebola virus is more advanced than that in other viruses.
D. The scientists have a negative attitude to the research in Ebola virus.
3.The underlined word “fatal” has the closest meaning to ______.
A. optimistic B. deadly
C. common D. fantastic
4.Where can we probably read this passage?
A. In a science report. B. In a storybook.
C. In an advertisement. D. In a textbook.
高一英语阅读理解中等难度题查看答案及解析