（新教材）2020版英语外研版必修三Unit 3 The world of science课件（37张）
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| 名称 | （新教材）2020版英语外研版必修三Unit 3 The world of science课件（37张） |  | |
| 格式 | zip | ||
| 文件大小 | 1.9MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2020-02-21 20:27:42 | ||
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课件37张PPT。Unit 3 The world of science Drones Could Help Biologists Tally Birds
Ecologists crouching quietly amidst
vegetation, using binoculars to tally birds in a roost,
may soon be a charming relic of the past. Because a
new study shows that, when it comes to getting an
accurate avian head count, aerial drones can do better. In recent years, scientists who study wild
populations are increasingly turning to remotely
piloted aircraft. . . otherwise known as drones. . . to
monitor their animal of interest. For example, drones
are being used to track pods of whales. . . or to keep
an eye on African elephant herds and watch for signs
of poaching. Such remote surveys are generally considered
highly cost-effective. But it wasn’t clear whether they
are as accurate as old-fashioned, feet-on-the-ground
expert evaluations.
To find out the answer, researchers in Australia
set up a test. “And so what we did was make some replica
seabird colonies where we knew the true number of
individuals in each colony. ”
Jarrod Hodgson of the University of Adelaide led
the study. Using decoy-sized rubber ducks, the researchers
laid out 10 colonies ranging in size from about 500 to
more than 1, 000 individuals.
“We then had experienced ground counters make
independent counts of those birds from nearby, from
the optimum vantage point. At the same time, we flew
a drone overhead capturing photographs at different
heights above the colony. ” The drone data were then analyzed two ways.
First, a gaggle of citizen–scientists was tasked with
adding up the number of birds they could see in each
scene.
The results of that approach: “We found that on average the drone-derived
data or the drone-derived counts made by humans
counting the images were between 43 percent and 96
percent more accurate than the traditional ground-
based counts. ”
The better the image, the more accurate the
count. Then, Hodgson and his team developed a semi-
automated computer program to do the counting for
them. And they found:
“. . . there was no statistical difference between
those counts and the counts completed by our
volunteers using exactly the same imagery. ”无人机可以帮助生物学家记录鸟类
生态学家安静地蹲伏在植被中间, 用双筒望远镜观察并记录栖息地中的鸟类数量, 这种方法可能很快就会成为迷人的“老古董”。因为一项新研究表明, 在获得鸟类的准确数量方面, 空中无人机可以做得更好。 近年来, 研究野生种群的科学家逐渐使用遥控飞
机, 即无人机, 来监测他们感兴趣的动物。例如: 无人
机现在被用来追踪鲸群, 或观察非洲象群并密切注意
偷猎迹象。
这种远程调查通常被认为具有很高的性价比。但
是并不清楚这种方法是否像老式的实地专家评估那样
准确。 为了找到答案, 澳大利亚研究人员进行了一项测
试。
“我们所做的就是复制一些海鸟种群, 我们知道每
个种群真实的个体数量。”
阿德莱德大学的杰罗德·霍奇森领导了这项研
究。
研究人员用假鸟大小的橡皮鸭铺开10块聚居地,
每块区域的橡皮鸭数量从约500只到1000多只不等。 “然后, 我们请经验丰富的地面计数员在最佳地点
独立计算鸭子数量。同时, 我们放飞一架无人机在聚
居地上空不同高度拍摄照片。”
无人机数据用两种方式进行分析。首先, 一组公
民科学家把他们在每个照片场景中看到的鸭子数量合
计起来。 该方法的结果是:
“我们发现, 平均来说, 无人机得出的数据, 或者说
人工统计无人机所拍摄图片中鸭子数量的准确率, 比
传统的地面计数方法高43%到96%。” 照片拍得越好, 计数越准确。
随后, 霍奇森和团队开发了一种半自动化电脑程
序来计算鸭子数量。他们发现:
“……电脑程序的统计结果与志愿者用完全相同
的照片所得出的计数结果没有差异。”【导语】 The Big Bang Theory是电视剧The Big Bang Theory(《生活大爆炸》)的主题曲, 该剧是一部以“科学天才”为背景的情景喜剧。? 注: 听音填空
The Big Bang Theory
Our whole universe was in a hot dense state,
Then nearly fourteen billion years ago expansion started. Wait. . .
The Earth began to cool,
The autotrophs began to drool, Neanderthals ①______________, ?
We built a wall (we built the pyramids),
Math, science, history, unraveling the mysteries,
That all started with ②___________! ?
“Since the dawn of man” is really not that long,
As every galaxy was formed in less time than it takes
to sing this song. developed toolsthe big bangA fraction of a second and the elements were made.
The bipeds ③_______________, ?
The dinosaurs all met their fate,
They ④___________but they were late, ?
And they all died (they froze their asses off),
The oceans and pangeastood up straighttried to leapSee ya, wouldn’t wanna be ya
Set in motion by the same big bang!
It all started with the big bang!
It’s expanding ever outward but one day
It will cause the stars to go the other way,
Collapsing ever inward, we won’t be here, it won’t be hurt, Our best and brightest figure that it’ll make an even
bigger bang!
Australopithecus would really have been sick of us,
Debating out while here they’re catching deer (we’re
catching viruses)
Religion or astronomy, Encarta, Deuteronomy
It all started with the big bang! Music and mythology, Einstein and astrology
It all started with the big bang!
It all started with the big BANG! 【词海拾贝】【听力微语系列】
失去爆破
英语音标中的6个爆破音: /p/, /b/, /k/, /g/, /t/, /d/,
当一个爆破音跟另一个爆破音相遇时往往失去爆破。
此时, 第一个爆破音不必发出, 只需做出发音的准备,
但并不发音, 稍稍停顿后就发后面的音。如歌曲中a
hot dense state的hot和dense; Our best and brightest
figure中的brightest和figure等。【即时训练】
听下面材料, 回答问题。
1. What will the speakers
have for dinner tonight?
A. Chinese food.
B. Italian food.
C. American food. 2. What will the woman do?
A. Go swimming with Ray.
B. Take a walk around the lake.
C. Have lunch with the man. 3. What does the man worry about?
A. He can’t go to the exhibition.
B. Some famous paintings would be destroyed.
C. He can’t understand the guides’ language.
答案: 1～3. BAC【听力原文】
Text 1
W: He doesn’t want to eat Italian food tonight.
M: So what? He doesn’t have to come to dinner with us. We can meet up with him later at the bar. Text 2
M: Hi, Nancy. It’s Paul. The weather is so great
today. How about taking a walk around the lake?
W: Well, I wish you had asked me this morning. Ray
just asked me to hang out during lunch. I’m supposed
to go swimming with him. Text 3
W: Hey, the Metropolitan Museum is holding a special exhibition this week.
M: What’s the exhibit? W: 44 paintings by Monet, Gauguin, and Van Gogh
that set the world on fire! Do you want to go there
with me?
M: Sure, it sounds like fun. I hope there are some
tour guides that can speak Chinese, though. 【歌曲译文】
宇宙一度又烫又稠密
140亿年前终于爆了炸 等着瞧……
地球开始降温
自养生物来起哄
尼安德特人发展了工具
我们建长城(我们建金字塔)数学 自然科学 历史 揭开神秘
一切由大爆炸开始
其实人类历史没有多久
星系形成时间比唱完这支歌还要短
元素在微秒间便形成了
两足动物直立行走恐龙都得认命了
想要突变 没来得及
就死光光了(屁股都冻成了化石)
大洋和泛古陆
拜拜 才不想学你
都是爆炸惹的祸
一切从大爆炸开始宇宙向外膨胀 但有一天
星球会反方向运动
向内坍塌 反正我们不在了 不会觉得疼
我们美好光辉的形象将引发一场更大的爆炸
南方古猿肯定不爽我们
在他们捉鹿时唧唧歪歪 (我们现在捉电脑病毒了)宗教 天文 e百科 旧约申命记
一切从大爆炸开始
音乐 神话 爱因斯坦 占星术
一切从大爆炸开始
一切从大爆炸开始
Ecologists crouching quietly amidst
vegetation, using binoculars to tally birds in a roost,
may soon be a charming relic of the past. Because a
new study shows that, when it comes to getting an
accurate avian head count, aerial drones can do better. In recent years, scientists who study wild
populations are increasingly turning to remotely
piloted aircraft. . . otherwise known as drones. . . to
monitor their animal of interest. For example, drones
are being used to track pods of whales. . . or to keep
an eye on African elephant herds and watch for signs
of poaching. Such remote surveys are generally considered
highly cost-effective. But it wasn’t clear whether they
are as accurate as old-fashioned, feet-on-the-ground
expert evaluations.
To find out the answer, researchers in Australia
set up a test. “And so what we did was make some replica
seabird colonies where we knew the true number of
individuals in each colony. ”
Jarrod Hodgson of the University of Adelaide led
the study. Using decoy-sized rubber ducks, the researchers
laid out 10 colonies ranging in size from about 500 to
more than 1, 000 individuals.
“We then had experienced ground counters make
independent counts of those birds from nearby, from
the optimum vantage point. At the same time, we flew
a drone overhead capturing photographs at different
heights above the colony. ” The drone data were then analyzed two ways.
First, a gaggle of citizen–scientists was tasked with
adding up the number of birds they could see in each
scene.
The results of that approach: “We found that on average the drone-derived
data or the drone-derived counts made by humans
counting the images were between 43 percent and 96
percent more accurate than the traditional ground-
based counts. ”
The better the image, the more accurate the
count. Then, Hodgson and his team developed a semi-
automated computer program to do the counting for
them. And they found:
“. . . there was no statistical difference between
those counts and the counts completed by our
volunteers using exactly the same imagery. ”无人机可以帮助生物学家记录鸟类
生态学家安静地蹲伏在植被中间, 用双筒望远镜观察并记录栖息地中的鸟类数量, 这种方法可能很快就会成为迷人的“老古董”。因为一项新研究表明, 在获得鸟类的准确数量方面, 空中无人机可以做得更好。 近年来, 研究野生种群的科学家逐渐使用遥控飞
机, 即无人机, 来监测他们感兴趣的动物。例如: 无人
机现在被用来追踪鲸群, 或观察非洲象群并密切注意
偷猎迹象。
这种远程调查通常被认为具有很高的性价比。但
是并不清楚这种方法是否像老式的实地专家评估那样
准确。 为了找到答案, 澳大利亚研究人员进行了一项测
试。
“我们所做的就是复制一些海鸟种群, 我们知道每
个种群真实的个体数量。”
阿德莱德大学的杰罗德·霍奇森领导了这项研
究。
研究人员用假鸟大小的橡皮鸭铺开10块聚居地,
每块区域的橡皮鸭数量从约500只到1000多只不等。 “然后, 我们请经验丰富的地面计数员在最佳地点
独立计算鸭子数量。同时, 我们放飞一架无人机在聚
居地上空不同高度拍摄照片。”
无人机数据用两种方式进行分析。首先, 一组公
民科学家把他们在每个照片场景中看到的鸭子数量合
计起来。 该方法的结果是:
“我们发现, 平均来说, 无人机得出的数据, 或者说
人工统计无人机所拍摄图片中鸭子数量的准确率, 比
传统的地面计数方法高43%到96%。” 照片拍得越好, 计数越准确。
随后, 霍奇森和团队开发了一种半自动化电脑程
序来计算鸭子数量。他们发现:
“……电脑程序的统计结果与志愿者用完全相同
的照片所得出的计数结果没有差异。”【导语】 The Big Bang Theory是电视剧The Big Bang Theory(《生活大爆炸》)的主题曲, 该剧是一部以“科学天才”为背景的情景喜剧。? 注: 听音填空
The Big Bang Theory
Our whole universe was in a hot dense state,
Then nearly fourteen billion years ago expansion started. Wait. . .
The Earth began to cool,
The autotrophs began to drool, Neanderthals ①______________, ?
We built a wall (we built the pyramids),
Math, science, history, unraveling the mysteries,
That all started with ②___________! ?
“Since the dawn of man” is really not that long,
As every galaxy was formed in less time than it takes
to sing this song. developed toolsthe big bangA fraction of a second and the elements were made.
The bipeds ③_______________, ?
The dinosaurs all met their fate,
They ④___________but they were late, ?
And they all died (they froze their asses off),
The oceans and pangeastood up straighttried to leapSee ya, wouldn’t wanna be ya
Set in motion by the same big bang!
It all started with the big bang!
It’s expanding ever outward but one day
It will cause the stars to go the other way,
Collapsing ever inward, we won’t be here, it won’t be hurt, Our best and brightest figure that it’ll make an even
bigger bang!
Australopithecus would really have been sick of us,
Debating out while here they’re catching deer (we’re
catching viruses)
Religion or astronomy, Encarta, Deuteronomy
It all started with the big bang! Music and mythology, Einstein and astrology
It all started with the big bang!
It all started with the big BANG! 【词海拾贝】【听力微语系列】
失去爆破
英语音标中的6个爆破音: /p/, /b/, /k/, /g/, /t/, /d/,
当一个爆破音跟另一个爆破音相遇时往往失去爆破。
此时, 第一个爆破音不必发出, 只需做出发音的准备,
但并不发音, 稍稍停顿后就发后面的音。如歌曲中a
hot dense state的hot和dense; Our best and brightest
figure中的brightest和figure等。【即时训练】
听下面材料, 回答问题。
1. What will the speakers
have for dinner tonight?
A. Chinese food.
B. Italian food.
C. American food. 2. What will the woman do?
A. Go swimming with Ray.
B. Take a walk around the lake.
C. Have lunch with the man. 3. What does the man worry about?
A. He can’t go to the exhibition.
B. Some famous paintings would be destroyed.
C. He can’t understand the guides’ language.
答案: 1～3. BAC【听力原文】
Text 1
W: He doesn’t want to eat Italian food tonight.
M: So what? He doesn’t have to come to dinner with us. We can meet up with him later at the bar. Text 2
M: Hi, Nancy. It’s Paul. The weather is so great
today. How about taking a walk around the lake?
W: Well, I wish you had asked me this morning. Ray
just asked me to hang out during lunch. I’m supposed
to go swimming with him. Text 3
W: Hey, the Metropolitan Museum is holding a special exhibition this week.
M: What’s the exhibit? W: 44 paintings by Monet, Gauguin, and Van Gogh
that set the world on fire! Do you want to go there
with me?
M: Sure, it sounds like fun. I hope there are some
tour guides that can speak Chinese, though. 【歌曲译文】
宇宙一度又烫又稠密
140亿年前终于爆了炸 等着瞧……
地球开始降温
自养生物来起哄
尼安德特人发展了工具
我们建长城(我们建金字塔)数学 自然科学 历史 揭开神秘
一切由大爆炸开始
其实人类历史没有多久
星系形成时间比唱完这支歌还要短
元素在微秒间便形成了
两足动物直立行走恐龙都得认命了
想要突变 没来得及
就死光光了(屁股都冻成了化石)
大洋和泛古陆
拜拜 才不想学你
都是爆炸惹的祸
一切从大爆炸开始宇宙向外膨胀 但有一天
星球会反方向运动
向内坍塌 反正我们不在了 不会觉得疼
我们美好光辉的形象将引发一场更大的爆炸
南方古猿肯定不爽我们
在他们捉鹿时唧唧歪歪 (我们现在捉电脑病毒了)宗教 天文 e百科 旧约申命记
一切从大爆炸开始
音乐 神话 爱因斯坦 占星术
一切从大爆炸开始
一切从大爆炸开始