第1章 迷失在宇宙中 Lost in the Cosmos · 第2讲S2
课程:《万物简史》慕课教程(WANWUJS001)主讲:余俊英副教授(数字人)词汇 12 条句型 3 条要点 0 条
二、核心词汇(12)
| 词条 | 释义 / 讲解 |
|---|
| track down | 追踪,查明。track本意为小路,track down指沿着线索追踪到底。 |
| eliminate | 消除,消灭。eliminate the noise即消除噪音干扰。 |
| wiggle | 摇晃,扭动。wiggled wires指扭动电线以检查接头是否松动。 |
| dust | 除尘(动词)。此处作动词,指清除插头上的灰尘。 |
| duct tape | 管道胶带。源自防水性能好的Duck tape,用于密封接缝。 |
| scrub | 用力刷洗。scrubbing brushes指用于强力清洁的刷子。 |
| dielectric | 介电的,绝缘的。white dielectric material指白色绝缘物质。 |
| radiation | n. 辐射。宇宙微波背景辐射的简称。 |
| left over | adj. 遗留的,剩余的。修饰辐射。 |
| cosmic background radiation | n. 宇宙本体辐射(微波背景辐射)。 |
| pursue | v. 追求,探究。此处指研究人员正在探究某个想法。 |
| astrophysicist | n. 天体物理学家。 |
三、句型与语法点(3)
| 要点 | 说明 |
|---|
| 定语从句+同位语从句 | idea后接that引导的定语从句(谁提出的),再接that引导的同位语从句(idea具体内容)。 |
| 定语从句 | that had been suggested... 修饰 idea。 |
| 同位语从句 | that if you look... 解释 idea 的具体内容。 |
四、课堂讨论题
1. 讲稿里说他们把天线里的白色绝缘物质扫干净了,结果发现其实就是鸟屎,这俩词在语境里到底有啥区别?为啥作者要特意提这个?
2. 文中提到他们用了'scrubbing brushes'而不是普通的'brushes',这两个词在指代刷子时,具体有什么区别?
3. 文中出现了两个'that'引导的句子:'an idea that had been suggested...'和'...Gamow that if you look...',这两个that从句在语法功能上是一样的吗?
4. 既然迪基团队(Dickey's team)在寻找宇宙背景辐射,而彭齐亚斯和威尔逊(Penzias and Wilson)却在拼命想消除噪音,为什么他们俩在找的东西其实是同一个?
5. 作者特意解释了'Duct tape'最初叫'Duck tape'是因为鸭子羽毛防水,这个冷知识对理解科学家当时的行为有什么帮助吗?
五、Discussion Questions (English)
1. The transcript says they swept away the white dielectric material from the antenna, only to find out it was actually bird shit. What's the difference between these two terms in this context, and why does the author mention it?
2. The text mentions they used 'scrubbing brushes' instead of just 'brushes'. What's the specific difference between these two words when referring to brushes?
3. There are two 'that' clauses in the text: 'an idea that had been suggested...' and '...Gamow that if you look...'. Are these two clauses the same grammatically?
4. Since Dickey's team was looking for cosmic background radiation while Penzias and Wilson were trying to eliminate noise, why were they actually looking for the exact same thing?
5. The author explains that 'Duct tape' was originally called 'Duck tape' because duck feathers are waterproof. How does this trivia help us understand the scientists' actions at that time?
六、听力 / 讲稿全文
1
00:00:05,840 --> 00:00:06,640
For a year,
2
00:00:06,780 --> 00:00:09,720
the young astronomers did everything they could think
3
00:00:09,720 --> 00:00:13,040
of to track down and eliminate the noise.
4
00:00:13,320 --> 00:00:16,120
They tested every electrical system,
5
00:00:16,360 --> 00:00:17,760
they rebuilt instruments,
6
00:00:18,380 --> 00:00:20,900
checked circuits,wiggled wires,
7
00:00:21,300 --> 00:00:22,400
dusted plugs.
8
00:00:22,740 --> 00:00:26,840
They climbed into the dish and placed duct tape over
9
00:00:26,840 --> 00:00:30,480
every seam and rivet.They climbed back into the dish
10
00:00:30,480 --> 00:00:34,460
with brooms and scrubbing brushes and carefully swept
11
00:00:34,460 --> 00:00:39,220
it clean of what they refer to in a later paper as white
12
00:00:39,220 --> 00:00:43,660
dielectrical material or what is known more commonly
13
00:00:43,660 --> 00:00:48,100
as bird shit Nothing they tried worked 两
14
00:00:49,280 --> 00:00:56,020
位年轻的科学家年轻的听闻学家忙了一整年 Did
15
00:00:56,250 --> 00:01:00,790
everything they could think of 什么办法都想了想要
16
00:01:00,790 --> 00:01:06,490
track downtrack down 是追踪 track 这个词本意是小路
17
00:01:06,490 --> 00:01:12,810
小径那么 track down 就像是追随着一个小路跟踪的意
18
00:01:12,810 --> 00:01:18,810
思想要追踪并且要 eliminate the noise 就是消除 get
19
00:01:18,810 --> 00:01:20,850
rid of the noise they
20
00:01:22,260 --> 00:01:25,620
tested every electrical system 他们
21
00:01:26,380 --> 00:01:29,100
测试了所有的电气系统
22
00:01:32,220 --> 00:01:36,840
所有的仪器也都重新拆下来又重新装上去
23
00:01:39,390 --> 00:01:41,270
检查了所有的电路
24
00:01:43,870 --> 00:01:51,310
中间大家应该可以看到是我们原先了解的就是圆圈电
25
00:01:51,310 --> 00:01:56,310
路因为所有的电路必然都是一个回路所以在里头可以
26
00:01:56,310 --> 00:02:01,310
看到 Wiggled wires,wiggle,
27
00:02:01,510 --> 00:02:06,530
摇晃,扭一扭,就是把电线呢,
28
00:02:06,550 --> 00:02:10,250
扭一扭,看看有没有接头的地方是否松了。
29
00:02:10,750 --> 00:02:14,170
Dusted plugs,plugs,是插头,
30
00:02:14,310 --> 00:02:17,030
dust,如果是名词 dust,
31
00:02:17,210 --> 00:02:21,950
就是灰尘,那么这里加上 ed 肯定就是动词,
32
00:02:22,030 --> 00:02:23,270
是指除尘。
33
00:02:23,270 --> 00:02:24,210
把
34
00:02:24,280 --> 00:02:30,500
插头上的灰尘也都擦干净怕万一是接触不良造成的噪
35
00:02:30,500 --> 00:02:30,720
音
36
00:02:34,400 --> 00:02:38,160
他们还爬
37
00:02:38,390 --> 00:02:45,530
到那个 dish 里面去 dish 是指像碗盘一样的碟子状的东
38
00:02:45,530 --> 00:02:50,890
西就是指我们看到的那个天线的那个大盘子一样的那
39
00:02:50,890 --> 00:02:55,970
个容器他们爬到里边去然后 placed duct tape over
40
00:02:55,970 --> 00:03:01,770
every seam and rivetse am 是缝隙 rivet
41
00:03:01,950 --> 00:03:07,590
锚钉因为那个天线它不可能是一次冲压成型的可能有
42
00:03:07,590 --> 00:03:08,350
接头的部分
43
00:03:08,910 --> 00:03:14,470
所以呢有锚钉的钉头还有接缝的这个部分这个部位全
44
00:03:14,470 --> 00:03:21,350
部都用 duct tape 就是这种塑料胶带全部都贴好了 Duct
45
00:03:21,350 --> 00:03:23,930
Tape Duct 这个词是管道的意思
46
00:03:25,990 --> 00:03:31,870
就是管道交代就是管道在街头的时候用来密封用的叫
47
00:03:31,870 --> 00:03:37,590
Duct Tape 其实这个 Duct Tape 它最初的名字就是 Duck
48
00:03:37,590 --> 00:03:43,570
Tape 就是鸭子的那个 Duck 最早的时候就是用来防潮用
49
00:03:43,570 --> 00:03:50,730
的在战场上密封弹药箱的时候防潮用的防水的因为防
50
00:03:50,730 --> 00:03:58,510
水性能很好所以就把它叫做 duck tape 鸭子胶因为鸭子
51
00:03:58,510 --> 00:04:02,350
就是它的羽毛是防水性能特别好嘛后
52
00:04:02,480 --> 00:04:07,340
来因为它广泛地使用在管道的街头上所以就成了 duck
53
00:04:07,340 --> 00:04:09,360
tape 管道胶带
54
00:04:13,350 --> 00:04:17,090
前面已经是 climbed into the dish 现在多了一个 back
55
00:04:17,590 --> 00:04:24,690
那就说明呢还是没用所以他们又再次的爬进天线这回
56
00:04:24,690 --> 00:04:30,830
戴上了 Brooms and Scrubbing Brushes 戴上了扫把和刷
57
00:04:30,830 --> 00:04:34,680
子 Scrub 这个词就是刷的意思
58
00:04:35,940 --> 00:04:38,080
为什么不直接用 Brushes
59
00:04:38,560 --> 00:04:43,120
而是要加上 Scrubbing Brushes 呢因为在英文当中
60
00:04:43,120 --> 00:04:48,940
Brush 可以指很多意思比如说 Painting Brush 就是画画
61
00:04:48,940 --> 00:04:53,040
用的毛笔或者画油画的那种牌笔前
62
00:04:53,480 --> 00:04:57,820
端是毛的还有 writing brush 就是中国人写字的那种毛
63
00:04:57,820 --> 00:04:59,160
笔 hairbrush
64
00:04:59,740 --> 00:05:05,340
是头书是那种看上去像刷子一样的那种头书所以要加
65
00:05:05,340 --> 00:05:06,620
上 scrapping brushes
66
00:05:07,430 --> 00:05:09,510
才指的是刷子
67
00:05:10,870 --> 00:05:13,650
好了他们带上这两样东西做什么呢
68
00:05:14,570 --> 00:05:19,310
and carefully swept it clean of what they referred to in
69
00:05:19,310 --> 00:05:23,370
a later paper as white dielectric material
70
00:05:26,240 --> 00:05:27,720
指的就是那个 dish
71
00:05:28,790 --> 00:05:32,290
带上刷子带上扫帚小心
72
00:05:32,550 --> 00:05:39,350
地把它扫干净 swept 原型是 s weep 清扫 s w e e p
73
00:05:41,370 --> 00:05:47,830
把那个碟子清扫干净扫掉了什么呢 of 后面跟的就是被
74
00:05:47,830 --> 00:05:52,050
扫掉的东西 of what they refer to in a later paper
75
00:05:56,110 --> 00:06:01,650
把他们后来在一篇文章中在一篇论文中 paper 是论文
76
00:06:01,650 --> 00:06:09,390
在一篇论文中称之为白色戒电物质的东西扫掉了
77
00:06:09,390 --> 00:06:13,350
refer to 是称
78
00:06:13,770 --> 00:06:19,870
指称在后来的一篇文章中把这个东西叫做白色的戒电
79
00:06:19,870 --> 00:06:26,100
物质戒电物质一般是电阻比较大不倒电的绝缘题
80
00:06:27,180 --> 00:06:32,340
Or what is known more commonly as bird shit 那这个所谓
81
00:06:32,340 --> 00:06:36,000
的白色借电物质又是什么呢 What is known more
82
00:06:36,000 --> 00:06:42,990
commonly 也就是人们常常所知的那个鸟屎 Bird shit 因
83
00:06:42,990 --> 00:06:46,020
为鸽子在他们的天线里面坐窝了
84
00:06:47,410 --> 00:06:51,830
Nothing they tried worked 他们想了这么多的办法可是
85
00:06:51,830 --> 00:06:54,510
一样也不管用在
86
00:06:58,060 --> 00:07:00,900
普林斯顿大学的 30 米远处,
87
00:07:02,640 --> 00:07:06,060
一队由罗伯特迪基带领的科学家,
88
00:07:06,040 --> 00:07:11,000
正在研究如何找到他们这么专心地尝试的东西。
89
00:07:12,260 --> 00:07:18,100
普林斯顿的研究员们,在 1940 年,
90
00:07:18,100 --> 00:07:27,100
被俄罗斯生长的博士,George Gamow 推荐的想法是,
91
00:07:31,760 --> 00:07:35,960
他们所不知道的是
92
00:07:36,940 --> 00:07:42,660
离他们仅仅 30 英里远的普林斯顿大学一
93
00:07:43,140 --> 00:07:44,620
英里大概是 1.
94
00:07:44,880 --> 00:07:50,160
6 公里所以 30 英里差不多就是 48 公里在
95
00:07:50,220 --> 00:07:53,000
普林斯顿大学呢有一个科学团队
96
00:07:56,030 --> 00:07:57,510
以罗伯特
97
00:07:57,630 --> 00:08:03,240
迪基为首要读作 Dickey 而不是 Dick 就像是 Nike
98
00:08:04,080 --> 00:08:05,820
那个运动品牌
99
00:08:06,480 --> 00:08:09,180
耐克他读作 Nike 而不是 Nike
100
00:08:10,940 --> 00:08:15,580
这个科学团队呢 was working on how to find the very
101
00:08:15
……(后略,完整文稿见视频页字幕)
本素材由艾智语途工场自动整理,仅供教学使用。配套视频:https://www.icclass.cn/VideoPlayer_ECom?id=10263