---This physics problem is too difficult. Can you show me __________, Wang Lin?
--- Sure.
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A．what to work it out |
B．what to work out it |
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C．how to work it out |
D．how to work out it |
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科目：高中英語 來源： 題型：閱讀理解
Have you ever noticed the colour of the water in a river or stream after a heavy rainfall? What do you think caused this change in colour? It is soil that has been washed into the river from the riverbank or from t}le nearby fields．
Components of Soft
Soil is made up of a number of layers(層)，each having its own distinctive colour and texture．The upper layer is known as the litter．It acts like a blanket．limiting temperature changes and reducing water loss．The topsoil layer is made up of small particles of rock mixed with rotten plant and animal matter called humus(腐殖質(zhì))，which is black and gives the topsoil its dark colour．This layer is usually rich in nutrients，oxygen，and water．Below the topsoil is the subsoil，a layer that contains more stones mixed with only small amounts of organic matter．This layer is lighter in colour because of the lack of humus．Beneath the soil lies a layer of bedrock．
Soil forms from the bottom up．Over time bedrock is attacked by rain, wind，frost, and snow．It is gradually broken down into smaller particles in a process called weathering．Plants begin to grow，and rotten materials enrich the topsoil．Most of the soil in Eastern Canada．for example．Was formed from weathered rock that was exposed when the ice disappeared l2．000 years ag0．
Water Beneath the Soil
Surface water collects and flows above the ground in lakes．ponds．a(chǎn)nd rivers．Once in the soil or rock，it is called groundwater．Gravity pulls groundwater through the soil in a process called percolation(滲透)．Eventually the water reaches a layer called the water table．Under this is bedrock through which water cannot percolate．
As water percolates downward，it dissolves organic matter and minerals from the soil and carries them to deeper layers．This causes a serious problem because plants require these nutrients for growth.
Soil pH
Soil can be acidic．neutral．or basic．The pH of the soil is determined by the nature of the rock
from which it was formed．a(chǎn)nd by the nature of t}le plants that grow and rot in it．
The acidity of rain and snow can lower the pH of the groundwater that enters the soil．By burning fossil fuels such as coal，oil and gasoline，humans have been contributing to higher levels of acidity in many soils．When fossil fuels are burned．gases are released into the air and then fall back to earth as acid rain．Acid soil increases出e problem of carrying nutrients to lower soil levels．As nutrients are removed，soil is less fertile．Plants grow more slowly in acidic soil，and also become easily attacked by diseases．
67．The layer of soil that provides necessary nutrients for plant growth is called．
A．1itter B．topsoil C．humus D．subsoil
68．According to the text．which of the following is NOT true?
A．Soil forms from weathered rock on the earth surface．
B．The deeper layer of soil is darker in colour than t}le surface soil．
C．Air pollution is partially responsible for acid soil．
D．Groundwater tends to carry away nutrients for plant growth．
69．We can infer from the passage that the water table lies ．
A．between the topsoil layer and the subsoil layer
B．in the subsoil layer above bedrock
C．between the subsoil layer and bedrock
D．in the bedrock layer beneath the subsoil
70．The underlined word “dissolve” is used to express the idea that organic matter and minerals from soil are ．
A．rushed away into the river
B．cleaned and purified by water
C．destroyed and carried away by water
D．mixed with water and become part of it
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科目：高中英語 來源：2011-2012學(xué)年黑龍江省雙鴨山一中高二上學(xué)期期中考試英語卷 題型：完型填空
Mr. Glen is a millionaire. Five years ago,after returning from abroad to his motherland, he 36 his small company. Speaking of success, Glen often tells us a story about his extra expensive “school” fee. He always 37 his success to it.
At that time, Glen, who already got a Ph.D. degree, 38 to return to the homeland, starting a company. Before leaving, he bought a Rolex watch with the 39 made through years of work after school and the scholarships. At the airport he had to accept the 40 customs check. The watch on his wrist was also demanded to be taken down for 41 . Glen knew that carrying the specific goods out had to pay the tax, and he worried about paying 42 for his watch. So when he was checked, he told a lie that his watch was a 43 fake（假貨）. When he was 44 of his “smarts”, immediately, in the presence of Glen, the officers hit the watch, 45 cost nearly 100,000, into pieces 46 hearing Glen’ s words. Glen was 47 . Before he understood why, he was taken to 
the office to be examined 48 . For many times of entry-exit 49 he knew that only those people in the “blacklist” wo
uld “enjoy” this special treatment. The officers looked over everything carefully in the box, and 50 him no matter what time of entry and exit he must accept the check and if 51 reusing and carrying fake and shoddy goods, he would be 52 according to law! Suddenly, his face turned red, and he had nothing in mind after boarding the plane for long.
After returning to the homeland, he often told the story to his family, and his employees, too. He said that this made a deep 53 on him, because the additional high “school” fee that he had ever paid made him realize the value of 54 , which he would remember as the 55 of his success forever.
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科目：高中英語 來源：河北省涿州二中2011-2012學(xué)年高二上學(xué)期期中考試英語試卷 題型：完型填空
完形填空（共20小題；每小題1.5分，滿分30分）
Mr. Glen is a millionaire. Five years ago, after returning from abroad to his motherland, he 36 his small company. Speaking of success, Glen often tells us a story about his extra expensive “school” fee. He always 37 his success to it.
At that time, Glen, who already got a Ph.D. degree, 38 to return to the homeland, starting a company. Before leaving, he bought a Rolex watch with the 39 made through years of work after school and the scholarships. At the airport he had to accept the 40 customs check. The watch on his wrist was also demanded to be taken down for 41. Glen knew that carrying the specific goods out had to pay the tax, and he worried about paying 42 for his watch. So when he was checked, he told a lie that his watch was a 43 fake（假貨）. When he was 44 of his “smarts”, immediately, in the presence of Glen, the officers hit the watch, 45 cost nearly 100,000, into pieces 46 hearing Glen’s words. Glen was 47 . Before he understood why, he was taken to the office to be examined 48 . For many times of entry-exit 49 he knew that only those people in the “blacklist” would “enjoy” this special treatment. The officers looked over everything carefully in the box, and 50 him no matter what time of entry and exit he must accept the check and if 51 reusing and carrying fake goods, he would be 52 according to law! Suddenly, his face turned red, and he had nothing in mind after boarding the plane for long.
After returning to the homeland, he often told the story to his family, and his employees, too. He said that this made a deep 53 on him, because the additional high “school” fee that he had ever paid made him realize the value of 54 , which he would remember as the 55 of his success forever.
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科目：高中英語 來源：2011-2012學(xué)年江蘇省學(xué)大教育專修學(xué)校高三5月月考英語試卷（帶解析） 題型：完型填空
Mr. Glen is a millionaire. Five years ago, after returning from abroad to his motherland, he 16 his small company. Speaking of success, Glen often tells us a story about his extra expensive “school” fee. He always 17 his success to it.
At that time, Glen, who already got a Ph.D. degree, 18 to return to the homeland, starting a company. Before leaving, he bought a Rolex watch with the 19 made through years of work after school and the scholarships. At the airport he had to accept the 20 customs check. The watch on his wrist was also demanded to be taken down for 21 . Glen knew that carrying the specific goods out had to pay the tax, and he worried about paying 22 for his watch. So when he was checked, he told a lie that his watch was a 23 fake. When he was 24 of his “smarts”, immediately, in the presence of Glen, the officers hit the watch, 25 cost nearly 100,000, into pieces 26 hearing Glen’s words. Glen was 27 before he understood why, he was taken to the office to be examined 28 . For many times of entry-exit 29 he knew that only those people in the “blacklist” would “enjoy” this special treatment. The officers looked over everything carefully in the box, and 30 him no matter what time of entry and exit he must accept the check and if 31 reusing and carrying fake and shoddy goods, he would be 32 according to law! Suddenly, his face turned red, and he had nothing in mind after boarding the plane for long.
After returning to the homeland, he often told the story to his family, and his employees, too. He said that this made a deep 33 on him, because the additional high “school” fee that he had ever paid made him realize the value of 34 , which he would remember as the 35 of his success forever.
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科目：高中英語 來源：天津市耀華中學(xué)2010屆高三下學(xué)期第一次模擬考試英語試卷 題型：閱讀理解
In the college-admissions wars, we parents are the true fighters. We’re pushing our kids to get good grades, take SAT preparatory courses and build resumes so they can get into the college of our first choice. I’ve twice been to the wars, and as I survey the battlefield, something different is happening. We see our kids’ college background as a prize demonstrating how well we’ve raised them. But we can’t acknowledge that our obsession(癡迷) is more about us than them. So we’ve created various justifications（辯解）that turn out to be half-truths, prejudices or myths. It actually doesn’t matter much whether Aaron and Nicole go to Stanford.
We have a full-developed panic; we worry that there won’t be enough prizes to go around. Fearful parents urge their children to apply to more schools than ever. What causes the hysteria(歇斯底里) is the belief that scarce elite（精英）degrees must be highly valuable. Their graduates must enjoy more success because they get a better education and develop better contacts. All seems right but mostly wrong. We haven’t found any convincing evidence that selectivity or prestige matters. Selective schools don’t systematically employ better instructional approaches than less selective schools. On two measures—professors’ feedback and the number of essay exams selective schools do slightly worse.
By some studies, selective schools do enhance（提高） their graduates’ lifetime earnings. The gain is reckoned at 2-4% for every 100-point increase in a school’s average SAT scores. But even this advantage is probably a statistical fluke(偶然). A well-known study examined students who got into highly selective schools and then went elsewhere. They earned just as much as graduates from higher-status schools.
Kids count more than their colleges. Getting into Yale may signify intelligence, talent and ambition. But it’s not the only indicator and, surprisingly, its significance is declining. The reason: so many similar people go elsewhere. Getting into college is not life’s only competition. In the next competition—the job market and graduate school—the results may change. Princeton economist Alan Krueger studied admissions to one top Ph.D. program. High scores on the GRE helped explain who got in; degrees of famous universities didn’t.
So, parents, take it easy（lighten up）. The stakes (利害關(guān)系) have been vastly exaggerated. Up to a point, we can rationalize our pushiness. America is a competitive society; our kids need to adjust to that. But too much pushiness can be destructive. The very ambition we impose on our children may get some into Harvard but may also set them up for disappointment. One study found that, other things being equal, graduates of highly selective schools experienced more job dissatisfaction. They may have been so conditioned to being on top that anything less disappoints.
1. Why does the author say that parents are the true fighters in the college-admissions wars?
A. They have the final say in which university their children are to attend.
B. They know best which universities are most suitable for their children.
C. They have to carry out intensive surveys of colleges before children make an application.
D. They care more about which college their children go to than the children themselves.
2. Why do parents urge their children to apply to more schools than ever?
A. They want to increase their children’s chances of entering a prestigious college.
B. They hope their children can enter a university that offers attractive scholarships.
C. Their children will have a wider choice of which college to go to.
D. Elite universities now enroll fewer student than they used to.
3. What does the author mean by “kids count more than their colleges” Line1, para.4?
A. Continuing education is more important to a person’s success.
B. A person’s happiness should be valued more than their education.
C. Kids’ actual abilities are more important than their college background.
D. What kids learn at college cannot keep up with job market requirements.
4. What does Krueger’s study tell us?
A. Getting into Ph.D. programs may be more competitive than getting into college.
B. Degrees of prestigious universities do not guarantee entry to graduate programs.
C. Graduates from prestigious universities do not care much about their GRE scores.
D. Connections built in prestigious universities may be kept long after graduation.
5. One possible result of pushing children into elite universities is that______
A. they earn less than their peers from other institutions
B. they turn out to be less competitive in the job market
C. they experience more job dissatisfaction after graduation
D. they overemphasize their qualifications in job application
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