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research简单

考点词v./n. (into,on)研究,调查
111真题出现次数
28套试卷
5次落在考点上

义项分布 · 点义项筛选原句

真题原句共 111 句

v./n. (into,on)研究,调查111 次

  • The animals could benefit from more research: Currently, there are no published genomes from donkeys located south of the Equator in Africa.

    这种动物可以从更多的研究中受益:目前,还没有已发表的非洲赤道以南地区驴的基因组。

  • Written accounts contain vital clues for donkey research.

    文字记载包含驴研究的重要线索。

  • The authors think that their research could help with ____

    作者们认为,他们的研究可能有助于____

  • She draws on letters, diaries and fiction, and a 1939 field notebook of verbatim audience research by Winifred Gill.

    她借鉴了信件、日记和小说,以及威妮弗雷德·吉尔1939年的一本田野笔记,其中逐字记录了她对听众的调查。

  • I loved the man from the Thirties research who found that wireless suddenly offered “a lot of variety...things I thought I’d never be interested in...ice hockey perhaps”.

    我很喜欢20世纪30年代那项调查中的一位男士,他发现无线电突然提供了“大量多样的内容……一些我以为自己永远不会感兴趣的东西……比如冰球”。

  • the research on radio used to be inadequate.

    过去对无线电的研究不够充分。

展开其余 105 条
  • But when Swetnam enrolled in graduate school at the University of Arizona’s Laboratory of Tree-Ring Research, he was surprised to find a record of repeated blazes dating back hundreds of years before European colonists arrived on the continent.

    但当斯韦特纳姆进入亚利桑那大学树木年轮研究实验室读研究生时,他惊讶地发现了一份反复发生火灾的记录,这些记录可以追溯到欧洲殖民者抵达这片大陆之前的数百年。

  • Instead, a growing body of research showed that frequent, low-severity fires made many ecosystems healthier.

    相反,越来越多的研究表明,频繁的低强度火灾让许多生态系统变得更健康。

  • Research shows that these prescribed burns make subsequent wildfires less severe, even if later fires happen under the most dangerous weather conditions.

    研究表明,这些计划烧除会降低后续野火的严重程度,即使之后的火灾发生在最危险的天气条件下也是如此。

  • the scarcity of tree-ring research in the U.S.

    美国树木年轮研究的匮乏。

  • According to our research, around one in five workers in the UK talk to AI like a friend, looking for guidance on personal and professional problems.

    根据我们的研究,英国约有五分之一的员工像对待朋友一样与人工智能交谈,就个人和工作问题寻求指导。

  • According to our research, 25% have decided to either outright ban AI or regulate its use within their organisations.

    根据我们的研究,25%的雇主已决定在其机构内要么彻底禁止人工智能,要么规范其使用。

  • That’s a great area to be doing research.”

    这是一个非常值得研究的领域。”

  • With so much research left to do, leaders in the field have been doing some soul-searching, and acknowledging that restoration can be motivated by — and designed to meet — different needs.

    由于还有大量研究有待开展,该领域的领军人物一直在进行反思,并承认恢复工作可以出于不同的需求而开展,也可以为满足不同的需求而设计。

  • The grammar school boy from Stratford-upon-Avon has landed a scholarly punch after groundbreaking research showed that Shakespeare does benefit children’s literacy and emotional development.

    这位来自埃文河畔斯特拉特福的文法学校男孩在学术上打出了漂亮的一拳:一项开创性研究表明,莎士比亚确实有益于儿童的读写能力和情感发展。

  • “The research shows that the way actors work makes a big difference to the way children use language and also how they think about themselves,” Jacqui O’Hanlon of the Royal Shakespeare Company (RSC), which commissioned the study, said.

    委托开展这项研究的皇家莎士比亚剧团(RSC)的杰姬·奥汉隆说:“研究表明,演员的工作方式对孩子们使用语言的方式以及他们如何看待自己有很大影响。”

  • O’Hanlon said more research would be needed but suggested that Shakespeare’s use of 20,000 words, compared with the everyday 2,000 words, gave a “massive expansion of language into children’s lives”, which was combined with children “using their whole bodies to bring words to life”.

    奥汉隆说还需要更多研究,但她指出,相比日常使用的2000个词,莎士比亚使用了20000个词,这让“孩子们生活中的语言大幅扩展”,再加上孩子们“用整个身体让文字活起来”。

  • I was shocked to learn recently that some scientists want to scale back their research in an effort to decrease carbon emissions.

    最近我震惊地得知,一些科学家想要缩减研究,以减少碳排放。

  • The carbon emissions from technological research are well spent: ultimately this research will safeguard the future of our planet.

    技术研究产生的碳排放是值得的:这些研究最终将守护我们星球的未来。

  • The carbon emissions from technological research are well spent: ultimately this research will safeguard the future of our planet.

    技术研究产生的碳排放是值得的:这些研究最终将守护我们星球的未来。

  • intention to reduce their research.

    打算缩减研究。

  • The author believes that carbon emissions from research ____

    作者认为研究产生的碳排放____

  • Energy-intensive research work is inevitable.

    高能耗的研究工作是不可避免的。

  • Innovation and research have relied on public participation in science for centuries.

    几个世纪以来,创新和研究一直依赖于公众对科学的参与。

  • (47) But by utilising the natural curiosity of the general public it is possible to overcome many of these challenges by engaging non-scientists directly in the research process.

    (47) 但通过利用公众与生俱来的好奇心,让非科学家直接参与研究过程,就有可能克服其中的许多挑战。

  • (48) Scientists have employed a variety of ways to engage the general public in their research, such as making data analysis into an online game or sample collection into a smartphone application.

    (48) 科学家们采用了多种方式让公众参与他们的研究,例如把数据分析做成网络游戏,或把样本采集做成智能手机应用程序。

  • And while you might [fear] coming across as incompetent, there’s actually research that shows that advice-seekers are [perceived] as more competent, not less.

    而且,虽然你可能{{14}}显得无能,但实际上有研究表明,寻求建议的人会被{{15}}更有能力,而不是更无能。

  • And, as our research emphasizes, tipping now seems to be more coercive, less generous, and often completely dissociated from service quality.

    而且,正如我们的研究所强调的,小费如今似乎更具强制性、更少出于慷慨,而且常常与服务质量完全脱节。

  • But implementation of existing HAPs has been uneven, according to a report from the Center for Policy Research.

    但据政策研究中心的一份报告,现有高温行动计划的实施情况参差不齐。

  • leads in the research on desire paths.

    在欲望小径研究方面处于领先地位。

  • The price of nails fell by 90% between the late 1700s and mid-1900s, as economist Daniel Sichel points out in a research paper.

    正如经济学家丹尼尔·西切尔在一篇研究论文中指出的,从18世纪末到20世纪中叶,钉子的价格下降了90%。

  • New research suggests that smell is a crucial factor in guiding elephants — and probably other herbivores — to the best food resources.

    新的研究表明,嗅觉是引导大象——很可能还有其他食草动物——找到最佳食物资源的关键因素。

  • That will likely take increased federal funding for research independent of the tech giants.

    这可能需要增加联邦政府对独立于科技巨头的研究的资助。

  • encouraging collaboration in AI research.

    鼓励人工智能研究方面的合作。

  • Recent research from the Organization for the Review of Care and Health Applications found that 350,000 health apps were available on the market, 90,000 of which launched in 2020 alone.

    护理与健康应用评审组织最近的研究发现,市场上有35万款健康应用,其中9万款仅在2020年一年推出。

  • The research findings are cited in Paragraph 1 to show ____

    第1段引用研究结果是为了说明____

  • Scientific papers are the recordkeepers of progress in research.

    科学论文是研究进展的记录者。

  • sponsor research on climate.

    资助气候研究。

  • requires further academic research.

    需要进一步的学术研究。

  • will inspire future scientific research.

    将激发未来的科学研究

  • They reimagined the 300-year-old score by injecting the latest climate prediction data for each season — provided by Monash University’s Climate Change Communication Research Hub.

    他们在这部有300年历史的乐谱中注入了每个季节的最新气候预测数据——这些数据由莫纳什大学气候变化传播研究中心提供——从而对其进行了重新构思。

  • Such an approach can both prompt new research as well as result in powerful art.

    这样的方式既能推动新的研究,也能催生有力量的艺术作品。

  • The reach of art-science tie-ups needs to go beyond the necessary purpose of research communication, and participants must not fall into the trap of stereotyping each other.

    艺术与科学合作的范围需要超越传播研究成果这一必要目的,参与者也绝不能陷入对彼此抱有刻板印象的陷阱。

  • Neither one of them actually participated in any contributions to animal research or conservation.

    它们都没有真正为动物研究或保护做出过任何贡献。

  • She uses outdated research and decades-old examples to undermine the noble mission of organizations committed to connecting children to a world beyond their own.

    她用过时的研究和几十年前的例子来贬低那些致力于让孩子们接触自身以外世界的组织的崇高使命。

  • Emma Marris selectively describes and misrepresents the findings of our research.

    埃玛·马里斯选择性地描述并歪曲了我们的研究结果。

  • Our research provides strong support for the value of zoos in connecting people with animals and with nature.

    我们的研究有力地证明了动物园在将人与动物、与自然联系起来方面的价值。

  • As I researched Scovell’s story I found far more of interest besides his intelligence work.

    在研究斯科维尔的故事时,我发现除了他的情报工作之外,还有更多有趣的东西。

  • Whether this research translates elsewhere is anybody’s guess.

    这项研究能否适用于其他地方,谁也说不准。

  • AI replaces the boring parts of your job. If you’re doing research, you can have AI go out and look for relevant sources and information that otherwise you just wouldn’t have time for.

    人工智能取代了你工作中枯燥的部分。如果你在做研究,你可以让人工智能去寻找相关的资料和信息,否则你根本没有时间去找。

  • Research by the World Economic Forum finds that on average 42 percent of the “core skills” within job roles will change by 2022.

    世界经济论坛的研究发现,到2022年,各岗位中平均42%的“核心技能”将发生变化。

  • Research by the World Economic Forum suggests ____

    世界经济论坛的研究表明____

  • Although only a research project at this stage, the request has raised the prospect of regulators wading into early-stage tech markets that until now have been beyond their reach.

    尽管现阶段这只是一个研究项目,但这一要求让人们预见到,监管机构可能介入迄今为止它们都管不到的早期科技市场。

  • encourage research collaboration.

    鼓励研究合作。

  • Other research shows we’re better at detecting deception from thin slices when we rely on intuition instead of reflection.

    其他研究表明,当我们依靠直觉而非反思时,我们更善于从“薄片”中识破欺骗。

  • It may be a well-informed, well-researched opinion, but it’s still an opinion, so talk tentatively and slightly understate your confidence.

    它也许是一个信息充分、经过深入研究的观点,但它仍然只是一个观点,所以说话要试探性一些,稍微低调地表达你的信心。

  • Scientists need journals in which to publish their research, so they will supply the articles without monetary reward.

    科学家需要期刊来发表他们的研究成果,因此他们会无偿提供文章。

  • The Dutch giant Elsevier, which claims to publish 25% of the scientific papers produced in the world, made profits of more than £900m last year, while UK universities alone spent more than £210m in 2016 to enable researchers to access their own publicly funded research; both figures seem to rise unstoppably despite increasingly desperate efforts to change them.

    荷兰巨头爱思唯尔声称出版了全世界25%的科学论文,去年利润超过9亿英镑;而仅英国的大学在2016年就花费了2.1亿多英镑,让研究人员能够查阅他们自己由公共资金资助的研究;尽管人们为改变这一状况所作的努力越来越孤注一掷,这两个数字似乎仍在势不可挡地上升。

  • More than half of all British scientific research is now published under open access terms: either freely available from the moment of publication, or paywalled for a year or more so that the publishers can make a profit before being placed on general release.

    现在,英国一半以上的科学研究都是按开放获取条款发表的:要么从发表之时起就免费提供,要么先付费阅读一年或更长时间,让出版商赚取利润后再公开发布。

  • How the whole image is then assembled and perceived is still a mystery although it is the subject of current research.

    至于整个图像随后是如何被组合和感知的,尽管这是当前的研究课题,但仍然是个谜。

  • “We’d assumed we’d have to give it a moving head and tail, facial features, and put a scent on it to make it smell like a real rat, but that wasn’t necessary,” says Janet Wiles at the University of Queensland in Australia, who helped with the research.

    “我们原以为得给它装上能动的头和尾巴、加上面部特征,还要给它喷上气味让它闻起来像真老鼠,但事实证明没有必要,”协助这项研究的澳大利亚昆士兰大学的珍妮特·怀尔斯说。

  • Plus, virtually all major American companies are becoming tech companies, often with their own research and development.

    而且,几乎所有美国大公司都在成为科技公司,往往拥有自己的研发部门。

  • finance more research and development.

    资助更多的研发。

  • Transient investors, who demand high quarterly profits from companies, can hinder a firm’s efforts to invest in long-term research or to build up customer loyalty.

    短期投资者要求公司获得高额季度利润,这可能会妨碍公司投资于长期研究或培养客户忠诚度的努力。

  • There has been a kind of inflationary process at work: (47) nowadays anyone applying for a research post has to have published twice the number of papers that would have been required for the same post only 10 years ago.

    一种膨胀的过程一直在起作用:(47) 如今,任何申请研究职位的人发表的论文数量,都必须是仅仅10年前同一职位所要求数量的两倍。

  • New research on transportation biofuels is already under way.

    关于交通生物燃料的新研究已经在进行中。

  • Such active research can have another effect.

    这种主动的探究还能产生另一种效果。

  • A survey by Barna research group found the top reason given by Americans for the fake news phenomenon is “reader error,” more so than made-up stories or factual mistakes in reporting.

    巴纳研究集团的一项调查发现,美国人认为假新闻现象的首要原因是“读者的错误”,其程度超过了编造的报道或报道中的事实错误。

  • The new research reveals that the need to know is so strong that people will [seek] to satisfy their curiosity even when it is clear the answer will [hurt].

    这项新研究表明,求知的需要如此强烈,以至于即使明知答案会带来伤害,人们仍会设法满足自己的好奇心。

  • Also, some research suggests that the [explanation] for rising rates of mortality, mental-health problems, and addiction [among] poorly-educated, middle-aged people is a shortage of well-paid jobs.

    此外,一些研究表明,受教育程度低的中年人{{9}}死亡率、心理健康问题和成瘾率上升的{{8}}是高薪工作的短缺。

  • New research suggests that CSR may create monetary value for companies — at least when they are prosecuted for corruption.

    新的研究表明,企业社会责任可能会为公司创造经济价值——至少在公司因腐败被起诉时是如此。

  • According to research from Princeton University, people assess your competence, trustworthiness, and likeability in just a tenth of a second, solely based on the way you look.

    根据普林斯顿大学的研究,人们仅凭你的外表,在十分之一秒内就会评估出你的能力、可信度和亲和力。

  • And new research suggests that happiness might influence [how] firms work, too.

    而新的研究表明,快乐可能也会影响公司{{1}}运作。

  • Companies located in places with happier people invest more, according to a recent research paper.

    根据最近的一篇研究论文,位于人们更快乐的地方的公司投资更多。

  • [In particular], firms in happy places spend more on R&D (research and development).

    {{2}},位于快乐地区的公司在研发(研究与开发)上投入更多。

  • The policy follows similar efforts from other journals, after widespread concern that basic mistakes in data analysis are contributing to the irreproducibility of many published research findings.

    此前,人们普遍担心数据分析中的基本错误导致许多已发表的研究成果无法重复,其他期刊已做出类似努力,这一政策是继其之后推出的。

  • Asked whether any particular papers had impelled the change, McNutt said: “The creation of the ‘statistics board’ was motivated by concerns broadly with the application of statistics and data analysis in scientific research and is part of Science’s overall drive to increase reproducibility in the research we publish.”

    当被问及是否有特定论文促成了这一变化时,麦克纳特说:“设立‘统计委员会’是出于对科学研究中统计和数据分析应用的广泛担忧,也是《科学》杂志提高所发表研究的可重复性这一整体努力的一部分。”

  • Asked whether any particular papers had impelled the change, McNutt said: “The creation of the ‘statistics board’ was motivated by concerns broadly with the application of statistics and data analysis in scientific research and is part of Science’s overall drive to increase reproducibility in the research we publish.”

    当被问及是否有特定论文促成了这一变化时,麦克纳特说:“设立‘统计委员会’是出于对科学研究中统计和数据分析应用的广泛担忧,也是《科学》杂志提高所发表研究的可重复性这一整体努力的一部分。”

  • John Ioannidis, a physician who studies research methodology, says that the policy is “a most welcome step forward” and “long overdue”.

    研究方法论的医生约翰·约安尼迪斯说,这一政策是“极受欢迎的进步”,而且“早该如此”。

  • Professional scientists are expected to know how to analyse data, but statistical errors are alarmingly common in published research, according to David Vaux, a cell biologist.

    细胞生物学家戴维·沃克斯表示,人们期望专业科学家懂得如何分析数据,但已发表的研究中统计错误多得惊人。

  • lack of data analysis is common in research projects.

    研究项目中普遍缺乏数据分析。

  • They cite past research by several authors to show that this is the gap that must be narrowed to close the achievement gap.

    他们引用了几位作者以往的研究,以表明要缩小成就差距,就必须缩小这方面的差距。

  • The authors of the research article are optimistic because ____

    这篇研究文章的作者感到乐观,是因为____

  • may lack opportunities to apply for research projects.

    可能缺乏申请研究项目的机会。

  • They could distort the achievement-based system of peer-review-led research.

    它们可能会扭曲以同行评审为主导的研究中基于成就的体系。

  • They could cement the status quo of peer-reviewed research.

    它们可能会固化同行评审研究的现状。

  • They do not fund peer-reviewed research.

    它们并不资助经同行评审的研究。

  • Some want to shock, others to draw people into science, or to better reward those who have made their careers in research.

    有些人想引起轰动,有些人想吸引人们投身科学,或者更好地奖励那些以研究为事业的人。

  • But the Nobel Foundation’s limit of three recipients per prize, each of whom must still be living, has long been outgrown by the collaborative nature of modern research — as will be demonstrated by the inevitable row over who is ignored when it comes to acknowledging the discovery of the Higgs boson.

    而诺贝尔基金会每个奖项最多三名获奖者且获奖者必须在世的限制,早已不适应现代研究的协作性质——在表彰希格斯玻色子的发现时,围绕谁被忽略而必然产生的争吵就将证明这一点。

  • It is fair to criticize and question the mechanism — that is the culture of research, after all — but it is the prize-givers’ money to do with as they please.

    批评和质疑这种机制是合理的——毕竟这就是科研文化——但那是颁奖者的钱,他们想怎么用就怎么用。

  • peer-review-led research.

    以同行评审为主导的研究。

  • the demonstration of research findings.

    研究成果的展示。

  • harmful to the culture of research.

    对科研文化有害。

  • To encourage innovation and competition, the report calls for increased investment in research, the crafting of coherent curricula that improve students’ ability to solve problems and communicate effectively in the 21st century, increased funding for teachers and the encouragement of scholars to bring their learning to bear on the great challenges of the day.

    为鼓励创新与竞争,报告呼吁增加科研投入,制定连贯的课程以提高学生在21世纪解决问题和有效沟通的能力,增加对教师的资助,并鼓励学者运用自己的学识应对当今的重大挑战。

  • Ground surveys allow archaeologists to pinpoint the places where digs will be successful. Most ground surveys involve a lot of walking, looking for surface clues such as small fragments of pottery. They often include a certain amount of digging to test for buried materials at selected points across a landscape. Archaeologists also may locate buried remains by using such technologies as ground radar, magnetic-field recording, and metal detectors. Archaeologists commonly use computers to map sites and the landscapes around sites. Two- and three-dimensional maps are helpful tools in planning excavations, illustrating how sites look, and presenting the results of archaeological research.

    地面勘测使考古学家能够准确找出可以成功发掘的地点。大多数地面勘测需要大量步行,寻找诸如陶器碎片之类的地表线索。勘测通常还包括一定量的挖掘,在一片地域中选定的若干地点检测是否有埋藏物。考古学家还可以利用地面雷达、磁场记录和金属探测器等技术来确定地下遗存的位置。考古学家通常用计算机绘制遗址及其周边地貌的地图。二维和三维地图是规划发掘、展示遗址面貌以及呈现考古研究成果的有用工具。

  • These two academics use an array of behavioral research to show that the most rewarding ways to spend money can be counterintuitive.

    这两位学者借助一系列行为研究表明,最能带来回报的花钱方式可能与直觉相悖。

  • An article in Scientific American has pointed out that empirical research says that, actually, you think you’re more beautiful than you are.

    《科学美国人》上的一篇文章指出,实证研究表明,实际上你认为自己比实际更漂亮。

  • Social psychologists have amassed oceans of research into what they call the “above average effect”, or “illusory superiority”, and shown that, for example, 70% of us rate ourselves as above average in leadership, 93% in driving and 85% at getting on well with others — all obviously statistical impossibilities.

    社会心理学家对他们所谓的“高于平均效应”或“虚幻优越感”积累了海量研究,并表明,例如,70%的人认为自己的领导力高于平均水平,93%的人认为自己的驾驶水平高于平均水平,85%的人认为自己在与人相处方面高于平均水平——这些在统计上显然都是不可能的。

  • The idea is to force social scientists to integrate their work with other categories, including health and demographic change; food security; marine research and the bio-economy; clean, efficient energy; and inclusive, innovative and secure societies.

    其用意在于促使社会科学家把他们的工作与其他类别相结合,包括健康与人口变化;粮食安全;海洋研究与生物经济;清洁高效能源;以及包容、创新和安全的社会。

  • Despite these factors, many social scientists seem reluctant to tackle such problems. And in Europe, some are up in arms over a proposal to drop a specific funding category for social-science research and to integrate it within cross-cutting topics of sustainable development.

    尽管存在这些因素,许多社会科学家似乎仍不愿着手解决这类问题。而在欧洲,一些人对一项提案表示强烈抗议,该提案要求取消社会科学研究的专门资助类别,将其并入可持续发展的跨领域课题之中。

  • During the late 1990s, national spending on social sciences and the humanities as a percentage of all research and development funds — including government, higher education, non-profit and corporate — varied from around 4% to 25%; in most European nations, it is about 15%.

    20世纪90年代末,各国在社会科学和人文学科上的支出占全部研发经费(包括政府、高等教育、非营利机构和企业的经费)的比例从约4%到25%不等;在大多数欧洲国家,这一比例约为15%。

  • An emerging body of research shows that positive health habits — as well as negative ones — spread through networks of friends via social communication.

    越来越多的研究表明,积极的健康习惯——以及消极的习惯——会通过社交沟通在朋友网络中传播。

  • discoveries today inspire future research.

    今天的发现会启发未来的研究。

  • I assumed that phase was something experts developed after years of research into children’s behaviour: wrong.

    我原以为这个阶段是专家经过多年儿童行为研究后提出的:错了。

  • researches into children’s behaviour.

    对儿童行为的研究。

  • The research of Till Von Wachter, the economist at Columbia University, suggests that not all people graduating into a recession see their life chances dimmed: those with degrees from elite universities catch up fairly quickly to where they otherwise would have been if they had graduated in better times; it is the masses beneath them that are left behind.

    哥伦比亚大学经济学家蒂尔·冯·瓦赫特的研究表明,并非所有在衰退期毕业的人都会人生机遇黯淡:拥有名校学位的人能相当快地追赶上来,达到他们在经济较好时期毕业本应达到的水平;被甩在后面的是他们之下的普通大众。

  • The research of Till Von Wachter suggests that in the recession graduates from elite universities tend to ____

    蒂尔·冯·瓦赫特的研究表明,在经济衰退中,名校毕业生往往____

  • In the third quarter, CEO turnover was down 23% from a year ago as nervous boards stuck with the leaders they had, according to Liberum Research.

    据Liberum研究公司称,由于紧张不安的董事会坚持留用现有领导人,第三季度首席执行官的更替率比一年前下降了23%。

  • The growth in public money for academic research has speeded the process: federal research grants rose fourfold between 1960 and 1990, but faculty teaching hours fell by half as research took its toll.

    用于学术研究的公共资金的增长加速了这一进程:1960年至1990年间,联邦研究经费增长了三倍,而由于研究占用了大量精力,教师的授课时间却减少了一半。

  • The growth in public money for academic research has speeded the process: federal research grants rose fourfold between 1960 and 1990, but faculty teaching hours fell by half as research took its toll.

    用于学术研究的公共资金的增长加速了这一进程:1960年至1990年间,联邦研究经费增长了三倍,而由于研究占用了大量精力,教师的授课时间却减少了一半。

  • The growth in public money for academic research has speeded the process: federal research grants rose fourfold between 1960 and 1990, but faculty teaching hours fell by half as research took its toll.

    用于学术研究的公共资金的增长加速了这一进程:1960年至1990年间,联邦研究经费增长了三倍,而由于研究占用了大量精力,教师的授课时间却减少了一半。