托福听力备考经验谈, 两种常见练习安排弊端分析。今天小编给大家带来托福听力备考经验谈,希望能够帮助到大家,下面小编就和大家分享,来欣赏一下吧。
托福听力备考经验谈 两种常见练习安排弊端分析
单篇核对练习法弊端分析
单篇核对的听力训练方法,简单来说就是每篇文章做完后都按照核对答案—改正错误—反思整理笔记—誊抄积累生词这样一个流程来循环。这种做法的弊端在于,会让考生无法形成和习惯考场做题应有的紧张感。小编接触过许多参加过托福考试的同学,得到的一个较为普遍的反馈是考场上发挥不如平时做题,有些自己练习不会出错的地方到了考场上却突然做不对了。这其实就是实战的紧张感在作祟。
而单篇核对的练习方法,正是考生不适应这种紧张感的主要原因。大家想一想自己是不是在练习中,每篇文章做完都能从容的完成一系列流程?而在知道自己每次只需要做完一篇文章就行了的前提下,考生面对这些题目又能有多少的紧迫感呢?哪怕是加上了一定的时间限制,考生对于考场上一口气要做许多题目会有的紧张感还是会相当缺乏了解,更不用说习惯压力了。而这,正是大家平时做题很顺手正确率高,但到了考场上就手忙脚乱各种低级错误频发的主要原因。
整套做完训练方式错误指点
既然单篇核对的训练方法有问题,那么是不是整套的做听力题目就是正确做法呢?当然也不是。先说紧迫感这一点,整套做题在这方面的确是有很大优势的,毕竟考试中听力部分设置的流程也是如此,整套做题的确更为符合考场实际情况。但是,整套做题后,许多同学都存在后期分析不够仔细的情况,毕竟做完一套题已经很疲劳且花费了不少时间,有些考生会下意识地在对答案分析选项时偷懒省力,特别是某些一知半解模棱两可,虽然做对了其实是靠蒙对的题目,大家可能就不会仔细去分析原因。
除此之外,还有些同学习惯了整套做题后看答案的做法,往往更为关注的是做题后的结果,也就是类似模考成绩正确率这样的数据,甚至只看结果决定要不要再刷题,这样唯结果论的浮躁心态一旦产生,大家往往就很难静下心来仔细分析做题的过程和各种做对做错题目的细节了。
另外,整套做听力题的做法可能也会导致另一个问题,也就是占用练习其它科目的时间,比如口语阅读写作的练习等等。以自身听力水平偏低为由花费大量时间练习,却忽视了对其它科目的训练,这也无疑会导致托福成绩偏科的严重问题,可以说在学习效率上也是值得商榷的。
2020托福听力练习:野生动物与猎人和徒步旅行者共存
Public lands in the U.S. are managed with two goals in mind: protecting biodiversity and providing people with recreational opportunities, a chance to connect with nature. But sometimes those two goals are at odds—especially if recreation, activities like hiking or hunting, disrupts wild animals enough to alter their use of those landscapes.
Indeed, several years ago, a study done in California found that hikers had a negative impact on wildlife.
"That kind of sounded a bit of an alarm to us as wildlife biologists and as people who like to go hiking ourselves."
Wildlife biologist Roland Kays, of the North Carolina Museum of Natural Sciences and N.C. State University.
"We were pretty worried that if this problem was as bad as it seemed from that study, and was widespread, then there could be a real conflict between outdoor recreation and wildlife conservation."
To find out, Kays and his team enlisted the help of more than 350 volunteer citizen scientists, who deployed camera traps at nearly 2,000 sites within 32 protected areas in six different states. Roughly half of the areas allowed hunting and half did not. What they discovered was something of a relief.
"We found relatively minor impacts of hunting and hiking on wildlife."
It's not that human activities didn't impact wildlife at all of course. Heavily hunted species, like white-tailed deer, grey squirrels, and raccoons, were photographed somewhat less often in hunted areas. Coyotes showed up more often in hunted areas. While most species didn't avoid hiking trails, the predators actually preferred them.
But they did find something that had a much bigger impact on wildlife: habitat quality. The best predictor of wildlife abundance was not human activity, but factors like forest connectivity, nearby housing density, and the amount of adjacent agriculture. The results were published in the Journal of Applied Ecology.
And they suggest that outdoor recreation, a 646-billion-dollar industry in the U.S., is currently managed in a sustainable way, but also that protecting the scattered patches of wild habitat that remain in the U.S. is vital—both for wildlife and for people.
"Recreation, including hunting and hiking, and wildlife conservation, can coexist in the same place at the same time, and we can go out there and enjoy nature, enjoy the woods, hope to catch a glimpse of wildlife, without worrying about hurting the populations in the process."
美国公共土地管理有两个目标:一是保护生物多样性,二是为人们提供娱乐休闲、接近大自然的机会。不过有时这两个目标并不一致,尤其是像徒步旅行或狩猎这样的休闲活动,如果对野生动物造成破坏,足以改变他们对这些景观的使用。
事实上,几年前,加利福尼亚进行的一项研究发现,徒步旅行者会对野生动物产生负面影响。
“作为野生生物学家,作为喜欢徒步旅行的人,这就像是为我们敲响了警钟。”
罗兰·凯斯是北卡罗来纳自然科学博物馆和北卡罗来纳州州立大学的野生生物学家。
“我们非常担心,如果这一问题像研究发现的那样严重、普遍,那户外休闲活动和野生动物保护之间可能会发生真正的冲突。”
为了找到答案,凯斯和他的团队招募了350余名公民科学家志愿者,让这些志愿者在6个州的32个保护区设置相机“陷阱”近2000处。在这些地点中,约有一半地区允许狩猎,另一半则不允许。他们的发现令人松了一口气。
“我们发现狩猎和徒步旅行对野生动物的影响相对较小。”
当然这并不是说人类活动对野生动物没有任何影响。像白尾鹿、灰松鼠和浣熊等大量被捕杀的物种,在狩猎地区极少被拍摄到。土狼在狩猎地区经常出现。大多数物种没有选择回避徒步旅行的小径,捕食者实际上更喜欢它们。
但是他们的确发现了会对野生动物产生更大影响的因素:栖息地的质量。野生动物丰富的最佳预测指标并不是人类活动,而是森林的连通性、附近房屋的密度以及相邻农田的数量。这一研究结果刊登在《应用生态学期刊》上。
他们认为,作为美国价值6千4600亿美元的产业,户外休闲活动现在应以可持续的方式进行管理,另外,无论是对野生动物还是对人类而言,保护美国零散的野生栖息地是至关重要的。
“狩猎和徒步旅行等休闲活动,可以与野生动物保护在同一时间同一个地方共存,我们可以走出去,享受自然,希望能在森林里看到野生动物,而不用担心在这一过程中对它们造成伤害。”
美国公共土地管理有两个目标:一是保护生物多样性,二是为人们提供娱乐休闲、接近大自然的机会。不过有时这两个目标并不一致,尤其是像徒步旅行或狩猎这样的休闲活动,如果对野生动物造成破坏,足以改变他们对这些景观的使用。
事实上,几年前,加利福尼亚进行的一项研究发现,徒步旅行者会对野生动物产生负面影响。
“作为野生生物学家,作为喜欢徒步旅行的人,这就像是为我们敲响了警钟。”
罗兰·凯斯是北卡罗来纳自然科学博物馆和北卡罗来纳州州立大学的野生生物学家。
“我们非常担心,如果这一问题像研究发现的那样严重、普遍,那户外休闲活动和野生动物保护之间可能会发生真正的冲突。”
为了找到答案,凯斯和他的团队招募了350余名公民科学家志愿者,让这些志愿者在6个州的32个保护区设置相机“陷阱”近2000处。在这些地点中,约有一半地区允许狩猎,另一半则不允许。他们的发现令人松了一口气。
“我们发现狩猎和徒步旅行对野生动物的影响相对较小。”
当然这并不是说人类活动对野生动物没有任何影响。像白尾鹿、灰松鼠和浣熊等大量被捕杀的物种,在狩猎地区极少被拍摄到。土狼在狩猎地区经常出现。大多数物种没有选择回避徒步旅行的小径,捕食者实际上更喜欢它们。
但是他们的确发现了会对野生动物产生更大影响的因素:栖息地的质量。野生动物丰富的最佳预测指标并不是人类活动,而是森林的连通性、附近房屋的密度以及相邻农田的数量。这一研究结果刊登在《应用生态学期刊》上。
他们认为,作为美国价值6千4600亿美元的产业,户外休闲活动现在应以可持续的方式进行管理,另外,无论是对野生动物还是对人类而言,保护美国零散的野生栖息地是至关重要的。
“狩猎和徒步旅行等休闲活动,可以与野生动物保护在同一时间同一个地方共存,我们可以走出去,享受自然,希望能在森林里看到野生动物,而不用担心在这一过程中对它们造成伤害。”
2020托福听力练习:科罗拉多大峡谷的神秘所在
"So what does rafting down the Grand Canyon have to do with science education?"
Ann Reid, former research biologist and current executive director of the National Center for Science Education. She spoke to me July 7th at the Fern Glen Canyon campsite the morning of our penultimate day rafting down the Colorado River in the Grand Canyon.
"Well, for NCSE it's one of the most powerful places on the Earth to show the differences between religious thinking and scientific thinking. Because for a very small minority of Christians who believe the Earth is 6,000 years old, the Grand Canyon is the best evidence they have of Noah's flood."
Creationists run multiple raft trips down the Colorado each year. A Web site touting some says the trips "will encourage your faith as we reveal the truth of God's creation found in this gigantic remnant of the Biblical Flood." Which creationists believe occurred some 4,400 years ago.
"And of course scientists of all, many, many different subdisciplines have figured out that the canyon is much older than that, there's the rocks, there's the biology, there's the hydrology, it's just a fantastic place to learn how scientists explain the world around us."
The annual NCSE Colorado River trip holds about two dozen guests and features talks by a geologist and an evolutionary biologist. This year, two public school teachers received all-expense paid scholarship trips so they could bring their experiences and learning back to the classroom. And I recorded lots more audio, which I'll be posting as Scientific American Science Talk podcasts in the coming weeks.
“在大峡谷漂流和科学教育有什么关系?”
前研究生物学家安·里德是美国国家科学教育中心的现任执行主任。7月7日,在我们结束沿着亚利桑那州大峡谷的科罗拉多河漂流的前一天,她在芒格伦峡谷营地和我进行了交谈。
“对美国国家科学教育中心而言,这里是地球上最强大的地方之一,因为它向人们展示了宗教思维和科学思维之间的区别。极少数的基徒认为地球已经有6000 年的历史,而大峡谷就是他们相信的诺亚大洪水的最好证据。”
每年,创世论者都会乘坐竹筏,在科罗拉多大峡谷进行几次航行。一些网站宣称大峡谷之旅会鼓励你的信仰,因为在这个圣经中记载的大洪水遗迹,我们可以揭示上帝创造万物的真相。创世论者认为大洪水发生在大约4400年前。
“当然,所有不同分支学科的科学家们已经证明大峡谷的历史要更久远,通过岩石、生物学、水纹学来看,这里只是一个神奇的地方,可以让我们了解科学家们如何解释我们周围的世界。”
一年一度的美国国家科学教育中心科罗拉多河之行会邀请24名宾客参加,期间还会有一名地质学家和一名进化生物学家发表讲话。今年,2名公立学校的教师获得了全程免费奖学金旅行,他们可以把自己在旅行中学到的经验和知识带回课堂。我录制了很多音频,未来几周我会发布在科学美国人的科学对话播客中。