Have you ever wondered why some of the smartest students in your class sometimes ____ failing exams?
A．take up B．pick up C．come up D．end up
高三英语单项填空简单题
Have you ever wondered why some of the smartest students in your class sometimes ____ failing exams?
A．take up B．pick up C．come up D．end up
高三英语单项填空简单题查看答案及解析
Have you ever wondered why some of the smartest students in your class sometimes ________ failing exams?
| A．take up | B．pick up | C．come up | D．end up |
高三英语单项填空中等难度题查看答案及解析
Do you ever wonder why trees begin to bud (发芽) earlier in some cities? Scientists finally found the answer but it’s not very pleasant. New science suggests a relationship between light pollution and the timing when trees produce buds, which signals the arrival of the spring season.
Light pollution is defined by the Lighting Research Center as the unwanted consequence of outdoor lighting such as street lights. Excessive (过多的) man-made light at night results in disturbed natural cycles, and also prevents the observation of stars and planets at night. But its effect on the environment goes beyond that.
By studying some trees, researchers found out that trees that are more exposed to artificial lighting at night bud up to 7.5 days earlier than those at the natural nighttime setting. And they found out that light had a more significant effect than temperature when the buds came out. The early budding may cause problems for insects, which feed on leaves, and the birds which then feed on them in turn. Professor Richard Ffrench-Constant, who helped lead the research, explained that more than the budding of trees, the study implies the danger to the balance of the ecosystem. “At the moment, caterpillars (毛毛虫) are timed to hatch to make the most of the opportunities to feed on freshly budded leaves, and birds hatch in time to feed on the young caterpillar,” he said.
Migratory (迁徙的) birds are also negatively affected by light pollution. The glare might confuse them and make them lose their flying sense. The phenomenon might explain why some birds accidentally knock into buildings.
Such results stress the need to pursue studies that aim to measure the effect of light pollution. If the issue were left to continue, it is estimated that by 2100, spring would begin almost a full month earlier than it does today.
1.What will happen if there is too much man-made light?
A. People’s eyesight will be damaged.
B. The ecosystem will likely lose its balance.
C. No stars or planets may be observed at night.
D. Animals’ living habits may change suddenly.
2.How does the early budding affect insects or plants?
A. It will cause the rising number of insects.
B. It could lead to trees growing fewer leaves.
C. It may result in some insects going hungry.
D. It might push insects to hatch more slowly.
3.What does the author want to tell us in the last paragraph?
A. The effect of light pollution is destructive.
B. The spring of 2100 will become much longer.
C. Light pollution should be taken seriously.
D. A further study on light pollution is scheduled.
4.What is the suitable title for the passage?
A. Why spring comes earlier in some cities
B. Why light pollution needs to be studied
C. How trees’ early budding takes place
D. How much light is “too much”
高三英语阅读理解困难题查看答案及解析
Do you ever wonder why trees begin to bud (发芽) earlier in some cities? Scientists finally found the answer but it’s not very pleasant. New science suggests a relationship between light pollution and the timing when trees produce buds, which signals the arrival of the spring season.
Light pollution is defined by the Lighting Research Center as the unwanted consequence of outdoor lighting such as street lights. Excessive (过多的) man-made light at night results in disturbed natural cycles, and also prevents the observation of stars and planets at night. But its effect on the environment goes beyond that.
By studying some trees, researchers found out that trees that are more exposed to artificial lighting at night bud up to 7.5 days earlier than those at the natural nighttime setting. And they found out that light had a more significant effect than temperature when the buds came out. The early budding may cause problems for insects, which feed on leaves, and the birds which then feed on them in turn. Professor Richard, who helped lead the research, explained that more than the budding of trees, the study implies the danger to the balance of the ecosystem. “At the moment, caterpillars (毛毛虫) are timed to hatch to make the most of the opportunities to feed on freshly budded leaves, and birds hatch in time to feed on the young caterpillar,” he said.
Migratory (迁徙的) birds are also negatively affected by light pollution. The glare might confuse them and make them lose their flying sense. The phenomenon might explain why some birds accidentally knock into buildings.
Such results stress the need to pursue studies that aim to measure the effect of light pollution. If the issue were left to continue, it is estimated that by 2100, spring would begin almost a full month earlier than it does today.
1.What will happen if there is too much man-made light?
A. People’s eyesight will be damaged.
B. The ecosystem will likely lose its balance.
C. No stars or planets may be observed at night.
D. Animals’ living habits may change suddenly.
2.How does the early budding affect insects or plants?
A. It will cause the rising number of insects.
B. It could lead to trees growing fewer leaves.
C. It may result in some insects going hungry.
D. It might push insects to hatch more slowly.
3.What does the author want to tell us in the last paragraph?
A. The effect of light pollution is destructive.
B. The spring of 2100 will become much longer.
C. Light pollution should be taken seriously.
D. A further study on light pollution is scheduled.
4.What is the suitable title for the passage?
A. Why spring comes earlier in some cities
B. Why light pollution needs to be studied
C. How trees’ early budding takes place
D. How much light is “too much”
高三英语阅读理解困难题查看答案及解析
Have you ever wondered why some people are able to have confidence to spare when it comes to taking risks such as starting their own business or taking a year off to travel without an enormous safety net? The answer is that they’ve the art of optimistic thinking. The good news is that some people are simply born to be optimistic, anyone can to take a more positive approach towards their life.
Optimists look for outcomes. This doesn’t mean that optimists always jump into things carelessly and hope for , rather that they do not let potential negative outcomes the potential positive outcomes. By hoping so and having that they can handle any negatives, optimists are to take advantage of opportunities that come their way.
Optimists believe that their actions can make a . They do not see their own efforts as being . They understand that they do have the power to make things happen and take steps to make their dreams a reality. , pessimists have a difficult time believing that what they do will make any difference and find it to make any changes or take any action towards achieving a goal. They find why something that has worked for others will not work for them and believe that anything they do is certain to . This makes it difficult for them to get out of situations that make them , such as a dead-end job that makes them miserable.
Optimists do not internalize(使内在化)failure. When things don’t for them, they don’t beat themselves up over it. They are able to accept failure as a part of life and try with a positive attitude. They are often better able to learn from their . When pessimists do take chances and fail, they have a hard time not themselves and concluding that this is the way that it has to be. One can leave them with a sense of being unworthy or completely at the mercy of others.
That’s why optimists become successful!
1.A. understood B. mastered C. studied D. found
2.A. if B. because C. unless D. while
3.A. respond B. continue C. learn D. return
4.A. positive B. possible C. different D. particular
5.A. the worst B. the least C. the best D. the most
6.A. overcome B. overlook C. overload D. overtake
7.A. faith B. work C. trouble D. control
8.A. eager B. unwilling C. ready D. likely
9.A. change B. difference C. fortune D. fame
10.A. endless B. precious C.special D. meaningless
11.A. In fact B. In general C. In contrast D. In short
12.A. rewarding B. amazing C.difficult D. impossible
13.A. excuses B. causes C. explanations D. faults
14.A. end B. start C. fail D. fall
15.A. responsible B. unhappy C. competitive D. unclear
16.A. run out B. make out C. work out D. look out
17.A. hard B. out C. again D. instead
18.A. experience B. mistakes C. friends D. faiths
19.A. blaming B. protecting C. identifying D. presenting
20.A. case B. defeat C. state D. example
高三英语完形填空中等难度题查看答案及解析
Have you ever wondered why certain pop songs just make you feel so good?
Researchers studying the question found that the right combination of uncertainty and surprise is what gives listeners the most pleasure.
The study, published in the journal Current Biology, involved an analysis of 80,000 chords( 和弦)in 745 pop songs from the US Billboard “Hot 100” chart between 1958 and 1991.
The researchers - from institutes in Germany, Norway, Denmark and the UK - used a machine-learning model to quantify the level of uncertainty and surprise of these chords, and then asked 39 adult volunteers to rate how pleasurable they found each series of chords.
Each song was stripped of its melody and lyrics(歌词)so that only chord progressions were left and the results couldn’t be influenced by other associations to the songs that listeners might have had.
They found two things: that participants got greater pleasure when they were relatively certain what would happen next but then were surprised by an unexpected chord progression. However, the same number of participants found it pleasant when they were uncertain as to what would follow, and then the subsequent chords were more familiar to them.
“It is fascinating that humans can get pleasure from a piece of music just by how sounds are ordered over time,” Vincent Cheung, the lead researcher on the paper from the Max Planck Institute for Human Cognitive and Brain Sciences, Germany, said in a statement.
“Songs that we find pleasant are likely those which strike a good balance between knowing what is going to happen next and surprising us with something we did not expect. Understanding how music activates our pleasure system in the brain could explain why listening to music might help us feel better when we are feeling blue.”
Cheung told CNN that pleasure in music has a lot to do with what listeners expect. Previous studies had looked into the effects of surprise on pleasure, but he and his colleagues’ study also focused on the uncertainty of listeners’ predictions.
The findings may help improve artificial musical algorithms(算法)and could help composers write music or predict musical trends.
“The idea is that hopefully as a scientist analyzing these patterns of pleasure in humans, you can somehow work out where music can go next,” Peter Harrison, a researcher at Queen Mary University, London, who worked on the project, told CNN.
As part of the same experiment, the researchers also used brain imaging to locate the areas of the brain reflected in musical pleasure. They found the regions involved were the amygdala, the hippocampus and the auditory cortex, which process emotions, learning and memory, and sound, respectively.
Cheung added that another part of the brain, the nucleus accumbens - which processes reward expectations - was perhaps responsible for “directing our attention towards the music so that we will try to find out what will happen next.”
1.This passage mainly deals with _____.
A.how composers create pop music trends B.why popular music makes people happy
C.what kind of music makes people most happy D.which part of the brain produces happy music
2.The underlined words in Paragraph 5 have the closest meaning to _____.
A.reserved B.restored C.removed D.refreshed
3.We can learn from the passage that __________.
A.pleasure in music is connected with listeners’ expectations
B.findings of this study are of little help to music composing
C.the regions of the brain mentioned process music composing
D.only uncertainty followed by familiarity can bring about pleasure
高三英语阅读理解中等难度题查看答案及解析
We all enjoy the colors of autumn leaves. Did you ever wonder how and why a fall leaf changes color? Where do the yellows and oranges come from? To answer those questions, we first have to understand what leaves are and what they do.
Leaves are nature's food factories. Plants take water from the ground through their roots. They take a gas called carbon dioxide from the air. Plants use sunlight to turn water and carbon dioxide into glucose, which is a kind of sugar. Plants use glucose as food for energy and as a building block for growing. The way plants turn water and carbon dioxide into sugar is called photosynthesis, which means " putting together with light. " A chemical called chlorophyll helps make photosynthesis happen. Chlorophyll is what gives plants their green color.
As summer ends and autumn comes, the days get shorter and shorter. This is how the trees "know" to begin getting ready for winter.
During winter, there is not enough light or water for photosynthesis. The trees will rest, and live off the food they stored during summer. They begin to shut down their food-making factories. The green chlorophyll disappears from the leaves. As the bright green fades away, we begin to see yellow and orange colors. Small a-mounts of these colors have been in the leaves all along. Covered up by the green chlorophyll, we just can't see them in summer.
The bright reds and purples we see in leaves are made mostly in the fall. In some trees, like maples, glucose is trapped in the leaves after photosynthesis stops. Sunlight and the cool nights of autumn cause the leaves turn this glucose into a red color. The brown color of trees like oaks is made from wastes left in the leaves.
It is the combination of all these things that make the beautiful colors we enjoy in the fall.
1.The writer asked two questions in the beginning in order to .
A. persuade readers to believe something
B. introduce the topic of the passage
C. get the readers excited
D. offer something to think over
2. Which of the following is True according to the passage?
A. Trees don't change colours with seasons.
B. Trees can still perform photosynthesis well in winter.
C. Trees have colours like yellow and orange even in summer.
D. Trees don't need food in winter.
3.Photosynthesis is a way that ___________________________.
A. plants change water and carbon dioxide into sugar
B. plants turn water and carbon dioxide into sugar with the help of sunlight
C. plants use glucose as food for energy and growing
D. chlorophyll is a great help
4. Which is the best title for this passage?
A. Colorful trees in autumn B. Mysteries of tree colors
C. Do you enjoy tree colors? D. Wonderful colors in autumn
高三英语阅读理解简单题查看答案及解析
Have you ever wondered what a Degree might be worth to you in your job or career? It means a lot of Americans with an Associate Degree average nearly $10,000 more in yearly earnings than those with just a High School Diploma(毕业证).
Harcourt Learning Direct offers you a way to get a Specialized Associate Degree in 11 of today’s growing fields-without having to go to college full time. With Harcourt, you study at home, in your spare time -- so you don’t have to give up your present job while you train for a better one. Choose from exciting majors like Business Management, Accounting, Dressmaking ＆Design, Bookkeeping, Photography, Computer Science, Engineering, and more! Your training includes everything you need! Books, lessons, learning aids-even professional-quality tools and equipment -- everything you need to master your training and more ahead to a new career is included in the low tuition price you pay. Your education is nationally recognized! Nearly 2, 000 American companies -- including General Electric, IBM, Mobile, General Motors, Ford, and many others -- have used our training for their employees. If companies like these recognize the value of our training, you can be sure that employees in your area will, too!
Earn your degree in as little as two years! Get a career diploma in just six months! The career of your dreams is closer than you think! Even if you have no experience before, you can get valuable job skills in today’s hottest fields! Step-by-step lessons make learning easy. Prepare for promotions(提升), pay raises, even start a business of your own! Send today for FREE information about Harcourt at home training!
Simply fill in your name and address on the coupon(票券) above. Then write in the name and number of the one program you’re most interested in, and mail it today. We’ll rush your free information about how you can take advantage of the opportunities in the field you’ve chosen. Act today!
Mail coupon today! Or call the number below 1-800-372-1589. Call any time, 24 hours a day, 7 days a week. www. Harcourt-learning. com E-mail：Harcourt＠learning. com.
1.This advertisement aims at calling on people to ________.
A. attend full-time universities
B. work part time to further their education
C. improve their education at home to get better jobs
D. earn their degrees in different ways that suit them
2.Which of the following is NOT clearly mentioned in this advertisement?
A. The way how you will get your degree.
B. Tuition price.
C. The hot fields you will be preparing yourself for.
D. The length of time it will take you to get a degree.
3.What does the writer of this ad intend to say by naming General Electric, IBM, Ford, etc.?
A. To show that their training is widely used in the country.
B. To show that the training program is fully supported by famous companies in the U. S.
C. To prove the value of their training in every area.
D. To show the importance of getting recognized by the most famous companies.
4. How many ways are mentioned in the ad for people to get in touch with the Harcourt Learning Direct?
A. One. B. Two. C. Three. D. Four.
高三英语阅读理解中等难度题查看答案及解析
Have you ever wondered what a Degree in your job or career? It means a lot of Americans with an Associate Degree average nearly $10,000 more in yearly earnings than those with just a High School Diploma(毕业证).
Harcourt Learning Direct offers you a way to get a Specialized Associate Degree in 11 of today’s growing fields—without having to go to college full-time. With Harcourt, you study at home, in your spare time, so you don’t have to give up your present job while you train for a better one. Choose from exciting majors like Business Management, Accounting, Dressmaking&Design, Bookkeeping, Photography, Computer Science, Engineering, and more!
Your training includes everything you need!
Books, lessons, learning aids-even professional-quality tools and equipment—everything you need to master your training and more ahead to a new career is included in the low tuition(学费) price you pay.
Your education is nationally recognized!
Nearly 2, 000 American companies-including General Electric, IBM, Mobile, General Motors, Ford, and many others—have used our training for their employees. If companies like these recognize the value of our training, you can be sure that employees in your area will, too!
Earn your degree in as little as two years! Get a career diploma in just six months!
The career of your dreams is closer than you think! Even if you have no experience before, you can get valuable job skills in today’s hottest fields! Step-by-step lessons make learning easy. Prepare for promotions(提升), pay raises, even start a business of your own!
Send today for FREE information about Harcourt at home training!
Simply fill in your name and address on the coupon(登记表) above. Then write in the name and number of the one program you’re most interested in, and mail it today. We’ll rush your free information about how you can take advantage of the opportunities. In the field you’ve chosen. Act today!
Mail coupon today! Or call the number below
1-800-372-1589.
Call any time, 24 hours a day, 7 days a week.
www. Harcourt-learning.com
E-mail: Harcourt@learning.com.
1.This advertisement aims at calling on people to ________.
A. attend full-time universities
B. work part time to further their education
C. improve their education at home to get better jobs
D. earn their degrees in different ways that suit them
2.Which of the following is NOT mentioned in this advertisement?
A. The way how you will get your degree.
B. The exact amount of tuition you should pay.
C. The hot fields you will be preparing yourself for.
D. The length of time it will take you to get a degree.
3.Which of the following majors doesn’t the Harcourt Learning Direct offer?
A. photography B. physiology
C. Accounting D. bookkeeping
4.People can get a Specialized Associate Degree by________.
A. doing fulltime learning at school
B. working in some big famous companies
C. studying in their spare time
D. studying abroad for two years
5.How can you get in touch with the Harcourt Learning Direct?
A. By sending a letter not later than today.
B. By visiting the office on weekdays.
C. By making a call on weekdays only.
D. By sending an e-mail.
高三英语阅读理解中等难度题查看答案及解析
He is no fool at all;_________，he is the smartest boy I have ever seen.
A. in addition B.in fact C.in particular D. in short
高三英语单项填空简单题查看答案及解析