How the Grand Canyon (大峽谷) was created remains one of the geology’s greatest mysteries. Some evidence suggests that the process was a gradual one in which the Colorado River (which runs through the canyon) slowly cut deeper and deeper into the ground over millions of years. But volcanic rock samples taken from the canyon now suggest that the canyon was down-cut instead.
Down-cutting is when a flood of water rushes over a landscape (地形) with enough force to cut deeply into the ground and leaves behind a canyon. Such a flood is usually released when a natural or man-made dam (堤壩) bursts.
Robert Webb, a research geologist, says natural dams seem to have formed and broken across the Colorado River several times during the last million years. The dams were built when lava(熔巖) from the eruptions of nearby volcanoes flowed into the river. The lava hardened into hard rocks and blocked the river, causing it to back up and form a lake. Each time the lake grew so huge that it broke the rock dam, releasing a flash flood that furthered the down-cutting process and deepened the canyon.
Down-cutting is not just an earthly event. Satellite photos sent back from Mars suggest that the process has happened there, too, say many other researchers.
The photos, taken by the Mars Global Surveyor, indicate that an enormous lake existed on Mars 3.5 billion years ago. The lake spilled into a large nearby hole. One edge of the hole broke, releasing a flash flood that quickly carved out a grand canyon.
The existence of down-cutting on Mars is just one more piece of evidence that the cold, dry planet was once warm and wet.
1.In the past, deep canyons were believed to have formed _______.
A. as a result of a sudden break of volcanoes
B. due to river flows over millions of years
C. owing to the burst of artificial dams
D. thanks to our ancestors’ creative work
2.According to the passage, which of the following statements is TURE?
A. Several volcanoes broke out on Mars directly creating grand canyons.
B. Several great lakes existed on the upper parts of the Colorado River.
C. People built high dams on the upper parts of the Colorado River.
D. The Colorado River crossed the Grand Canyon to form down-cutting.
3.From the last three paragraphs we learn that _______.
A. there are great lakes on Mars
B. there are active volcanoes on Mars
C. there might be cities on Mars
D. there might be life on Mars
4.The passage can be titled as _______.
A. Lakes on Earth and Mars
B. The Cause of Lake Formation
C. The Force of Dam Breaking
D. Canyons—Results of Flood Cutting
科目：高中英語 來源：2017屆河北定州中學(xué)高三上期周練英語試卷（解析版） 題型：單項填空
When __________ to danger and conflict, men tend to increase blood pressure, __________ nervous or anxious .
A. exposed; felt
B. exposed; feeling
C. exposing; felt
D. exposing; feeling
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科目：高中英語 來源：2016-2017學(xué)年湖北武漢外國語校高一上期中考英語卷（解析版） 題型：閱讀理解
People around the world are superstitious about numbers; even those ancient Greeks believed that all numbers and their multiples had some mystical significance.
Those numbers between 1 and 13 were in particular to have a powerful influence over the affairs of men.
For example, it is commonly said that luck, good or bad, comes in threes; if an accident happens, two more of the same kind may be expected soon afterwards. The arrival of a letter will be followed by two others within a certain period.
Another belief involving the number three has it that it is unlucky to light three cigarettes from the one match. If this happens, the bad luck that goes with the deed falls upon the person whose cigarette was the last to be lit. The ill-men linked to the lighting of three things from one match or candle goes back to at least the 17th century and probably earlier. It was believed that three candles alight at the same time would be sure to bring bad luck; one, two, or four, were permissible, but never just three.
Seven was another significant number, usually regarded as a bringer of good luck. The ancient astrologers believed that the universe was governed by seven planets; students of Shakespeare will recall that the life of man was divided into seven ages. Seven horseshoes nailed to a house will protect it from all evil.
Nine is usually thought of as a lucky number because it is the product of three times three. It was much used by the Anglo Saxons in their charms for healing.
Another belief was that great changes occurred every 7th and 9th of a man's life. Consequently, the age of 63 (the product of nine and seven) was thought to be a very perilous time for him. If he survived his 63rd year he might hope to live to a ripe old age.
Thirteen, as we well know, is regarded with great awe and fear. The common belief is that this derives from the fact that there were 13 people at Christ's Last Supper. This being the eve of his betrayal, it is not difficult to understand the significance given to the number by the early Christians.
In more modern times 13 is an especially unlucky number of a dinner party, for example. Hotels will avoid numbering a floor the 13th; the progression is from 12 to 14, and no room is given the number 13. Many home owners will use 12 1/2 instead of 13 as their house number.
Yet oddly enough, to be born on the 13th of the month is not regarded with any fear at all, which just shows how irrational we are in our superstitious beliefs.
1.What does the underlined sentence mean?
A. If one good thing happens, two bad things will follow it.
B. If one bad thing happens, two good things will follow it.
C. If one good thing happens, two more good things will follow it.
D. Three good things and three bad things always come together.
2.According to the passage, which of the following groups of numbers will certainly bring good luck to people?
A. 3 and 7.B. 7 and 9.C. 3 and 9.D. 3 and 13.
3.What does the underlined word perilous in paragraph 7 mean ________.
A. dangerousB. instableC. unluckyD. unhealthy
4.The ill luck associated with 13 is supposed to have its origin in ________.
A. legendB. popular beliefC. religionD. certain customs
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科目：高中英語 來源：2016-2017學(xué)年黑龍江哈爾濱市高一12月考英語卷（解析版） 題型：單項填空
________ I achieve something in my studies, my mother has a big smile on her face.
A. In caseB. BeforeC. AlthoughD. Every time
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科目：高中英語 來源：2016-2017學(xué)年黑龍江哈爾濱市高一12月考英語卷（解析版） 題型：單項填空
Mark needs to learn Chinese ________ his company is opening a branch in Beijing.
A. unlessB. untilC. althoughD. since
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科目：高中英語 來源：2017屆安徽蚌埠二中等四校高三10月聯(lián)考英語試卷（解析版） 題型：短文改錯
文中共有10 處語言錯誤，每處錯誤僅涉及一個單詞的增加、刪除或修改。增加：在缺詞處加一個漏字符
號（∧），并在其下面寫出該加的詞。刪除：把多余的詞用斜線(＼)劃掉。修改：在錯的詞下劃一橫線，
并在該詞下面寫出修改后的詞。
注意：1、每處錯誤及其修改均僅限一詞；2、只允許修改10 處，多者（從第11 處起）不計分。
Last weekend our school hold a sports meeting. Realizing it was our last school sports meeting, we decided to make it a unforgettable experience. We first attended the opening ceremony, for whom our class had made a lot of preparations. Much for our excitement, our performance was a success. My classmates took part in various event, such as running, high jump and long jump. Due to the hard training the athletes have done before, their performance was very impressively.
My classmates applauded and cheered for the athletes, some raising their cameras to capture the excited moments. The result was announced. Our class won the second place and our efforts were paid off! Cup in hand, we took a picture together proudly. This sports meeting will be a precious memory for all of them as time goes by.
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科目：高中英語 來源：2017屆安徽蚌埠二中等四校高三10月聯(lián)考英語試卷（解析版） 題型：閱讀理解
It’s interesting that technology often works as a servant for us, yet frequently we become a servant to it. E-mail is a useful tool but many feel controlled by this new tool. The average business person is getting about 80 e-mails per day and many feel that about 80% of the messages in their “Inbox” are of little or no value. So, I have four suggestions to help you to become better at “Erasing E-mail”.
1.Get off the lists. The best way to deal with a problem is to never have it. If you are receiving a lot of unwanted e-mails, ask to be removed from the various lists. This would include your inclusion in unwanted lists.
2.“Unlisted address”. Just as you keep an “unlisted” telephone number that you share only with those whom you want to have direct access to, you might want to get a separate e-mail address only for the important communications you wish to receive.
3.Check it once or twice per day. Many I speak with are becoming chained to their email server, monitoring incoming email continuously. Maybe this is because e-mail creates its own sense of urgency, but most of the communications are not all that urgent. I respond to them a couple of times per day.
4.Deal with it. As you open each e-mail, do one of the following:
a. If it requires a quick response, respond to it and delete it.
b. If it requires a response but is not the best use of your time, try to find someone else to do it.
c. If it is going to take any serious amount of time to respond, schedule it for action in your Day Planner and then download the message, save it, or print it out for future action.
I personally receive about 250 e-mails per day and by practicing the suggestions above, I can handle that volume in about an hour, taking advantage of this fantastic tool but not being controlled by it to make sure I’m doing more important tasks in my day.
1.For the important communications, the writer suggests that you ________.
A. have a direct access for them
B. have several e-mail servers for them
C. get a separate e-mail address for them
D. get an unlisted phone number for them
2.To avoid being chained by the coming e-mails, what you can do is to ________.
A. respond urgent ones only
B. reply to all of them at the same time
C. handle them a couple of times daily
D. keep replying to e-mails all day long
3.To deal with an e-mail you get, you can do the following EXCEPT ________.
A. responding right away if it’s urgent
B. downloading every e-mail before you reply
C. scheduling it for later reply if it takes much time
D. asking someone else to reply to it if it’s not at your convenience
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科目：高中英語 來源：2017屆廣東五校協(xié)作體高三上期第一次聯(lián)考英語卷（解析版） 題型：七選五
根據(jù)短文內(nèi)容, 從短文后的選項中選出能填入空白處的最佳選項。有兩項為多余選項。
In our work, hobbies are often considered to be a waste of time. ___1.__, consider these benefits. There are many cases where working on a hobby will help you improve your performance at your day job.
___2.__. Fitting your hobby into your daily and weekly schedule is a challenge for many people. Making the most of limited time is a great skill to develop and it applies to the working world.
You will improve your mental health. How well you manage your mental health and stress levels has a major effect on your work performance. Fortunately, many hobbies offer health benefits to mind. Scientist Dr. Jeff Brown found that running improves your mental health—he shares his findings in the book, The Runner’s Brain. ___3.___, you will be able to solve more problems at work and get ahead.
You will have better physical health. ___4.___. Consider starting a hobby that will improve your health such as a sport or healthy cooking. As you improve your physical health, you will have more energy and that will help you at work.
You will be more creative. Developing creative ways to deal with problems at work is one of the best ways to set yourself apart from the rest of the pack. ___5.__. Creative hobbies such as photography and needlework improve performance at work. Simply occupying your mind with an activity beyond your regular work gives you a chance to ask new questions and new approaches to life.
A. You will manage your time better
B. You will understand what matters to you
C. When you have the ability to think clearly
D. As you experiment with different hobbies
E. If you struggle with the idea of putting time into a hobby
F. Actively forming a hobby is a great way to improve your creativity
G. Like it or not, your appearance and physical health directly improve your work results
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科目：高中英語 來源：2016-2017學(xué)年福建福州市等高二上期中聯(lián)考英語（解析版） 題型：閱讀理解
Life comes in a package. This package includes happiness and sorrow, failure and success, hope and despair. Life is a learning process. Experiences in life teach us new lessons and make us a better person. With each passing day we learn to handle various situations.
Love
Love plays a vital role in our life. Love makes you feel wanted. Without love a person could become cruel and ferocious(殘忍的). In the early stage of our life, our parents are the ones who show us with unconditional love and care, and they teach us about what is right and wrong, good and bad. But we always tend to take this for granted. It is only after marriage and having kids that a person understands and becomes sensitive to others’ feelings. Kids make a person responsible and mature and help us to understand life better.
Happiness and Sorrow
Materialistic happiness is short-lived, but happiness achieved by bringing a smile on others’ face gives a certain level of fulfillment. Peace of mind is the main link to happiness. No mind is happy without peace. We realize the true worth of happiness when we are in sorrow. Sorrow is basically due to death of a loved one, failure and despair. But these things are temporary and pass away.
Failure and Success
Failure is the path to success. It helps us touch the sky, teaches us to survive and shows us a specific way. Success brings in money, fame, pride and self-respect. Here it becomes very important to keep our head on our shoulder. The only way to show our gratitude to God for bestowing(授予) success on us is by being humble, modest, courteous and respectful to the less fortunate ones.
Hope and Despair
Hope is what keeps life going. Parents always hope their children will do well. Hope makes us dream. Hope builds in patience. Life teaches us not to despair even in the darkest hour, because after every night there is a day. Nothing remains the same. We have only one choice: keep moving on in life and be hopeful.
Life teaches us not to regret over yesterday, for it has passed and is beyond our control. Tomorrow is unknown, for it could either be bright or dull. The only alternative is to work hard today, so that we will enjoy a better tomorrow.
1.What would be the best title for the passage?
A. Life is a Journey of Ups and Downs
B. Love Plays an Important Role in Our Life
C. Failure is the Path to Success
D. Hope Keeps Life Going
2.What is the author’s understanding of happiness?
A. Materialistic happiness leads to people living a short life.
B. Smiling to others adds to our happiness.
C. Happiness is temporary and passes away.
D. Happiness is closely related with peace of mind.
3.In the author’s opinion, tomorrow ________.
A. is beyond our control
B. is bright and hopeful
C. calls for today’s efforts
D. count for more than yesterday
4.The passage is most likely to be found in a ________.
A. magazineB. tourist guideC. book reviewD. science report
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