高中选文还是选理?湖南2021届新高考选科数据出炉!(附选科建议)

  导读:2021湖南高考报名考生共57.49万人,除保送生、高职院校单独招生、师范生等考生外,实际考生近40.02万人,其中普通高考考生37.22万人(历史类考生16.58万人,占44.55%;物理类考生20.64万,占55.45%)。

  一、单科选考分析

  以下为新高考改革第三批实行3+1+2方案的省市2021届学生(刚刚结束高考的本届高三学生)的各科选考数据,从整体来看各省选科占比相对比较均衡,最受欢迎的科目是生物。

 高中选文还是选理?湖南2021届新高考选科数据出炉!(附选科建议)

  ↑表格来源:自主选拔在线,非官方数据仅供参考

  1、两个首选科目差距不大,偏文科人数较往年有所上涨

  首先从首选的物理、历史两个科目来看,总体来说选考两科的比例很接近。而首选历史或物理一定程度上可以反映考生的偏文理程度,我们通过对比2019年其中六个省份的文科生占比情况(见下表)发现,大部分省份的偏文科比例都有所上涨。

高中选文还是选理?湖南2021届新高考选科数据出炉!(附选科建议)

  说明:表中2019文科占比数据是基于2019年各省发布的一分一段表文理人数计算而来,艺术类考生暂未计入。

  2、生物成热门,政治受冷落

  为方便大家直观的看出各科目选考比例,我们将这届七省选考数据转换成柱状图:

高中选文还是选理?湖南2021届新高考选科数据出炉!(附选科建议)

  从上述图表中可以看出,生物的选考比例高居首位,紧接着就是物理和地理两门科目选考人数最多,其次就是历史、化学。而政治科目选考人数最少,这可能与政治这门学科背诵内容多、不容易拿高分的特性有关。

高中选文还是选理?湖南2021届新高考选科数据出炉!(附选科建议)

  导读:2021湖南高考报名考生共57.49万人,除保送生、高职院校单独招生、师范生等考生外,实际考生近40.02万人,其中普通高考考生37.22万人(历史类考生16.58万人,占44.55%;物理类考生20.64万,占55.45%)。

  一、单科选考分析

  以下为新高考改革第三批实行3+1+2方案的省市2021届学生(刚刚结束高考的本届高三学生)的各科选考数据,从整体来看各省选科占比相对比较均衡,最受欢迎的科目是生物。

 高中选文还是选理?湖南2021届新高考选科数据出炉!(附选科建议)

  ↑表格来源:自主选拔在线,非官方数据仅供参考

  1、两个首选科目差距不大,偏文科人数较往年有所上涨

  首先从首选的物理、历史两个科目来看,总体来说选考两科的比例很接近。而首选历史或物理一定程度上可以反映考生的偏文理程度,我们通过对比2019年其中六个省份的文科生占比情况(见下表)发现,大部分省份的偏文科比例都有所上涨。

高中选文还是选理?湖南2021届新高考选科数据出炉!(附选科建议)

  说明:表中2019文科占比数据是基于2019年各省发布的一分一段表文理人数计算而来,艺术类考生暂未计入。

  2、生物成热门,政治受冷落

  为方便大家直观的看出各科目选考比例,我们将这届七省选考数据转换成柱状图:

高中选文还是选理?湖南2021届新高考选科数据出炉!(附选科建议)

  从上述图表中可以看出,生物的选考比例高居首位,紧接着就是物理和地理两门科目选考人数最多,其次就是历史、化学。而政治科目选考人数最少,这可能与政治这门学科背诵内容多、不容易拿高分的特性有关。

2017年11月25日雅思阅读解析

2018-03-01 来源: 网络 作者: 长沙新东方

扫码关注“长沙升学那些事”公众号

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  一、考试概述:

  本次考试的阅读部分共三篇文章,均为旧题。第一篇讲了利用各种资源来解决航海计时问题。第二篇讲了沙漠化问题,探讨了沙漠化行程原因和研究。第三篇讲了不同的科学家针对睡眠进行研究,并且提出了不同的观点。

  二、具体题目分析

  Passage 1:

  题目:航海计时

  题型:段落信息配对题7 + 填空6

  题号:旧题

  参考文章:

  Timekeeper

  Invention of Marine Chronometer

  A

  It was, as Dava Sobel has described a phenomenon: ‘the GREatest scientific problem of the age’. The reality was that in the 18th century no one had ever made a clock that could suffer the GREat rolling and pitching of a ship and the large changes in temperature whilst still keeping time accurately enough to be of any use. Indeed, most of the scientific community thought such clock impossibility. Knowing one’s position on the earth requires two very simple but essential coordinates; rather like using a street map where one thinks in terms of how far one is up/down and how far side to side.

  B

  The longitude is a measure of how far around the world one has come from home and has no naturally occurring base line like the equator. The crew of a given ship was naturally only concerned with how far round they were from their own particular home base. Even when in the middle of the ocean, with no land in sight, knowing this longitude position is very simple in theory. The key to knowing how far around the world you are from home is to know, at that very moment, what time it is back home. A comparison with your local time (easily found by checking the position of the Sun) will then tell you the time difference between you and home, and thus how far round the Earth you are from home.

  C

  Up until the middle of the 18th century, navigators had been unable to determine their position at sea with accuracy and they faced the huge attendant risks of shipwreck or running out of supplies before reaching their destination. The angular position of Moon and other bright stars was recorded in three hour intervals of GREenwich Time. In order to determine longitude, sailors had to measure the angle between Moon center and a given star—lunar distance—together with height of both planets using the naval sextant. The sailors also had to calculate the Moon’s position if seen form the center of Earth. Time corresponding to GREenwich Time was determined using the natitical almanac. Then the difference between the obtained time and local time served for calculation in longitude from GREenwich. The GREat flaw in this ‘simple’ theory was-how does the sailor know time back home when he is in the middle of an ocean?

  D

  The obvious and again simple answer is that he takes an accurate clock with him, which he sets to home time before leaving. All he has to do is keep it wound up and running, and he must never reset the hands throughout the voyage This clock then provides ‘home time’, so if, for example, it is midday on board your ship and your ‘home time’ clock says that at that same moment it is midnight at home, you know immediately there is a twelve hour time difference and you must be exACTly round the other side of the world, 180 deGREes of longitude from home.

  E

  After 1714 when the British government offered the huge sum of £20,000 for a solution to the problem, with the prize to be administered by the splendidly titled Board of Longitude. The Government prize of £20,000 was the highest of three sums on offer for varying deGREes of accuracy, the full prize only payable for a method that could find the longitude at sea within half a deGREe. If the solution was to be by timekeeper (and there were other methods since the prize was offered for any solution to the problem), then the timekeeping required to achieve this goal would have to be within 2.8 seconds a day, a performance considered impossible for any clock at sea and unthinkable for a watch,even under the very best conditions.

  F

  It was this prize, worth about £2 million today, which inspired the self-taught Yorkshire carpenter, John Harrison, to attempt a design for a prACTical marine clock.

  G

  During the latter part of his early career, he worked with his younger brother James. Their first major project was a revolutionary turret clock for the stables at Brockelsby Park, seat of the Pelham family. The clock was revolutionary because it required no lubrication. 18th century clock oils were uniformly poor and one of the major causes of failure in clocks of the period. Rather than concentrating on improvements to the oil, Harrison designed a clock which didn’t need it. In 1730 Harrison created a description and drawings for a proposed marine clock to compete for the Longitude Prize and went to London seeking financial assistance. He presented his ideas to Edmond Halley, the Astronomer Royal. Halley referred him to George Graham, the country’s foremost clockmaker. He must have been impressed by Harrison, for Graham personally loaned Harrison money to build a model of his marine clock. It took Harrison five years to build Harrison Number One or HI. He demonstrated it to members of the Royal Society who spoke on his behalf to the Board of Longitude. The clock was the first proposal that the Board considered to be worthy of a sea trial.

  H

  After several attempts to design a betterment of H1, Harrison believed that the solution to the longitude problem lay in an entirely different design. H4 is completely different from the other three timekeepers. It looks like a very large pocket watch. Harrison’s son William set sail for the West Indies, with H4, aboard the ship Deptford on 18 November 1761. It was a remarkable achievement but it would be some time before the Board of Longitude was sufficiently SATisfied to award Harrison the prize.

  I

  John Hadley, an English mathematician, developed sextant, who was a competitor of Harrison at that time for the luring prize. A sextant is an instrument used for measuring angles, for example between the sun and the horizon, so that the position of a ship or aeroplane can be calculated. Making this measurement is known as sighting the object, shooting the object, or taking a sight and it is an essential part of celestial navigation. The angle, and the time when it was measured, can be used to calculate a position line on a nautical or aeronautical chart. A sextant can also be used to measure the Lunar distance between the moon and another celestial object (e.g., star, planet) in order to determine GREenwich time which is important because it can then be used to determine the longitude.

  J

  The majority within this next generation of chronometer pioneers were English, but the story is by no means wholly that of English achievement. One French name, Pierre Le Roy of Paris, stands out as a major presence in the early history of the chronometer. Another GREat name in the story is that of the Lancastrian, Thomas Earnshaw, a slightly younger contemporary of John Arnold’s. It was Earnshaw who created the final form of chronometer escapement, the spring detent escapement, and finalized the format and the production system for the marine chronometer, making it truly an article of commerce, and a prACTical means of safer navigation at sea over the next century and half.

  答案:

  1. E

  2. A

  3. I

  4. D

  5. B

  6. H

  7. B

  8. home time

  9. 2.8s

  10. oil

  11. sextant

  12. sun

  13. marine chronometer

  (答案仅供参考)

  Passage 2:

  题目:How deserts are formed

  题型:段落信息配对题 7 + 判断题 6

  题目:新题

  Passage 3:

  题名:Research in sleep

  题型:人名观点配对题6 + 填空7 + 选择1

  题号:新题

  参考答案

  1-6 暂无

  7. breathing eating

  8. babies

  9. brain temperature fall

  10. brain ACTivity

  11. new drug

  12. vigorous exercise

  13. D

      以上就是长沙新东方为你带来的2017年11月25日雅思阅读解析,更多精彩敬请关注:留学频道

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    新东方网>长沙新东方学校>留学>雅思>真题解析>正文
    2017年11月25日雅思阅读解析
    2018-03-01 来源: 网络 作者: 长沙新东方

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      一、考试概述:

      本次考试的阅读部分共三篇文章,均为旧题。第一篇讲了利用各种资源来解决航海计时问题。第二篇讲了沙漠化问题,探讨了沙漠化行程原因和研究。第三篇讲了不同的科学家针对睡眠进行研究,并且提出了不同的观点。

      二、具体题目分析

      Passage 1:

      题目:航海计时

      题型:段落信息配对题7 + 填空6

      题号:旧题

      参考文章:

      Timekeeper

      Invention of Marine Chronometer

      A

      It was, as Dava Sobel has described a phenomenon: ‘the GREatest scientific problem of the age’. The reality was that in the 18th century no one had ever made a clock that could suffer the GREat rolling and pitching of a ship and the large changes in temperature whilst still keeping time accurately enough to be of any use. Indeed, most of the scientific community thought such clock impossibility. Knowing one’s position on the earth requires two very simple but essential coordinates; rather like using a street map where one thinks in terms of how far one is up/down and how far side to side.

      B

      The longitude is a measure of how far around the world one has come from home and has no naturally occurring base line like the equator. The crew of a given ship was naturally only concerned with how far round they were from their own particular home base. Even when in the middle of the ocean, with no land in sight, knowing this longitude position is very simple in theory. The key to knowing how far around the world you are from home is to know, at that very moment, what time it is back home. A comparison with your local time (easily found by checking the position of the Sun) will then tell you the time difference between you and home, and thus how far round the Earth you are from home.

      C

      Up until the middle of the 18th century, navigators had been unable to determine their position at sea with accuracy and they faced the huge attendant risks of shipwreck or running out of supplies before reaching their destination. The angular position of Moon and other bright stars was recorded in three hour intervals of GREenwich Time. In order to determine longitude, sailors had to measure the angle between Moon center and a given star—lunar distance—together with height of both planets using the naval sextant. The sailors also had to calculate the Moon’s position if seen form the center of Earth. Time corresponding to GREenwich Time was determined using the natitical almanac. Then the difference between the obtained time and local time served for calculation in longitude from GREenwich. The GREat flaw in this ‘simple’ theory was-how does the sailor know time back home when he is in the middle of an ocean?

      D

      The obvious and again simple answer is that he takes an accurate clock with him, which he sets to home time before leaving. All he has to do is keep it wound up and running, and he must never reset the hands throughout the voyage This clock then provides ‘home time’, so if, for example, it is midday on board your ship and your ‘home time’ clock says that at that same moment it is midnight at home, you know immediately there is a twelve hour time difference and you must be exACTly round the other side of the world, 180 deGREes of longitude from home.

      E

      After 1714 when the British government offered the huge sum of £20,000 for a solution to the problem, with the prize to be administered by the splendidly titled Board of Longitude. The Government prize of £20,000 was the highest of three sums on offer for varying deGREes of accuracy, the full prize only payable for a method that could find the longitude at sea within half a deGREe. If the solution was to be by timekeeper (and there were other methods since the prize was offered for any solution to the problem), then the timekeeping required to achieve this goal would have to be within 2.8 seconds a day, a performance considered impossible for any clock at sea and unthinkable for a watch,even under the very best conditions.

      F

      It was this prize, worth about £2 million today, which inspired the self-taught Yorkshire carpenter, John Harrison, to attempt a design for a prACTical marine clock.

      G

      During the latter part of his early career, he worked with his younger brother James. Their first major project was a revolutionary turret clock for the stables at Brockelsby Park, seat of the Pelham family. The clock was revolutionary because it required no lubrication. 18th century clock oils were uniformly poor and one of the major causes of failure in clocks of the period. Rather than concentrating on improvements to the oil, Harrison designed a clock which didn’t need it. In 1730 Harrison created a description and drawings for a proposed marine clock to compete for the Longitude Prize and went to London seeking financial assistance. He presented his ideas to Edmond Halley, the Astronomer Royal. Halley referred him to George Graham, the country’s foremost clockmaker. He must have been impressed by Harrison, for Graham personally loaned Harrison money to build a model of his marine clock. It took Harrison five years to build Harrison Number One or HI. He demonstrated it to members of the Royal Society who spoke on his behalf to the Board of Longitude. The clock was the first proposal that the Board considered to be worthy of a sea trial.

      H

      After several attempts to design a betterment of H1, Harrison believed that the solution to the longitude problem lay in an entirely different design. H4 is completely different from the other three timekeepers. It looks like a very large pocket watch. Harrison’s son William set sail for the West Indies, with H4, aboard the ship Deptford on 18 November 1761. It was a remarkable achievement but it would be some time before the Board of Longitude was sufficiently SATisfied to award Harrison the prize.

      I

      John Hadley, an English mathematician, developed sextant, who was a competitor of Harrison at that time for the luring prize. A sextant is an instrument used for measuring angles, for example between the sun and the horizon, so that the position of a ship or aeroplane can be calculated. Making this measurement is known as sighting the object, shooting the object, or taking a sight and it is an essential part of celestial navigation. The angle, and the time when it was measured, can be used to calculate a position line on a nautical or aeronautical chart. A sextant can also be used to measure the Lunar distance between the moon and another celestial object (e.g., star, planet) in order to determine GREenwich time which is important because it can then be used to determine the longitude.

      J

      The majority within this next generation of chronometer pioneers were English, but the story is by no means wholly that of English achievement. One French name, Pierre Le Roy of Paris, stands out as a major presence in the early history of the chronometer. Another GREat name in the story is that of the Lancastrian, Thomas Earnshaw, a slightly younger contemporary of John Arnold’s. It was Earnshaw who created the final form of chronometer escapement, the spring detent escapement, and finalized the format and the production system for the marine chronometer, making it truly an article of commerce, and a prACTical means of safer navigation at sea over the next century and half.

      答案:

      1. E

      2. A

      3. I

      4. D

      5. B

      6. H

      7. B

      8. home time

      9. 2.8s

      10. oil

      11. sextant

      12. sun

      13. marine chronometer

      (答案仅供参考)

      Passage 2:

      题目:How deserts are formed

      题型:段落信息配对题 7 + 判断题 6

      题目:新题

      Passage 3:

      题名:Research in sleep

      题型:人名观点配对题6 + 填空7 + 选择1

      题号:新题

      参考答案

      1-6 暂无

      7. breathing eating

      8. babies

      9. brain temperature fall

      10. brain ACTivity

      11. new drug

      12. vigorous exercise

      13. D

          以上就是长沙新东方为你带来的2017年11月25日雅思阅读解析,更多精彩敬请关注:留学频道

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