Shadowing Practice: Elements | Middle school chemistry | Khan Academy - Learn English Speaking with Video
Ders oluşturuluyor...
1
Think about all the thousands of books and poems and articles and dictionaries and encyclopedias and textbooks and so much more.
2
All those English writings are fundamentally made of what?
3
26 letters.
4
And yeah, some spaces, but that's it.
5
These 26 letters forms the building block of almost every single thing, all the uncountable words and sentences that you can make.
6
Now, guess what?
7
Turns out, our nature is similar.
8
Almost everything that you can touch and taste and smell
9
and feel around you from the germs to microbes to stuff like cats
10
and dogs to oceans and mountains and even planets and stars.
11
Turns out, All of these are also made from just a few building blocks, about a hundred of them.
12
Each square over here represents a building block, and we'll talk a little bit about how we arrange them and stuff.
13
But these building blocks are called the elements.
14
And that's what we're going to talk about in this video.
15
So let's do that.
16
First of all, these elements, the building blocks, are also called pure substances.
17
And like I said earlier, they make up almost all the matter around us.
18
hydrogen and oxygen and consider any living being like yourself then you are mostly made of six Elements.
19
Oxygen, Carbon, Hydrogen, Nitrogen, Calcium, and Phosphorus.
20
I mean, there are other elements, but these mostly make it up.
21
And just to give you another example, if you consider any rock, then they're mostly made of five elements: Silicon,
22
Oxygen, Aluminium, Magnesium, and Iron.
23
Don't worry about remembering the names of these elements for now.
24
What's important, and I keep repeating because it's so important, is that almost all the matter in the universe is made from these elements.
25
So to study matter, we need to study these elements.
26
So let's do that.
27
We arrange these elements in this particular form and we call this the periodic table.
28
It might seem daunting at first, but let's look at it, okay?
29
So first of all, you can see that each element gets a square and a number.
30
So, element number one is hydrogen.
31
Element number two is over here, helium.
32
Element number three is lithium.
33
Element number four is beryllium and so on and so forth.
34
What we want to notice over here is that each element has a symbol, kind of an abbreviation.
35
Now for some elements, that's basically the first letter of the word, H for hydrogen.
36
B for boron, C for carbon, N for nitrogen, and so on and so forth.
37
And notice we always use capital letters.
38
But what about other elements which start with the same letter?
39
For example, helium.
40
How do we ensure we don't confuse it with hydrogen?
41
Well, we use first two letters, so HE.
42
Similarly, for calcium, to make sure we don't confuse it with carbon, we use the first two letters, CA, and so on and so forth.
43
But what's important again over here is to notice how we write that.
44
the first letter is capital over here, the second letter is small.
45
So we'll never write helium this way, where both are capital, and we'll never write it this way, where both are small.
46
We'll always write it as first letter capital, second letter small, and that's always the case.
47
Alright, these make sense, but what about sodium?
48
Sodium is Na, what's going on over here?
49
And then there's more such stuff.
50
So for example, gold is Au.
51
Tungsten, which is used in the filament of our bulbs, is W.
52
And lead is PB, what's going on over here?
53
Well, humanity has known about these elements for a long time now.
54
And some of these symbols are taken from the old names from different languages like Greek, Latin, Arabic, German, and so on.
55
Na stands for natrium, a Latin word for sodium.
56
AU comes from Aurum.
57
PB comes from Plumbum, the Latin word for lead.
58
Fun fact, earlier pipes in the Roman Empire were made from lead
59
and therefore people who used to fix those pipes were called Plumbers and the name is stuck today.
60
And W comes from the German Wolfram.
61
Now again, you might be thinking, "Oh my god, how am I supposed to remember all of this?" Don't worry, we don't have to do that.
62
As we start talking about some of the common elements over and over again, we'll start So, in summary, all the matter that you see,
63
almost everything in the universe is made of a few, about a hundred elements, which we also call the pure substances.
64
They're arranged this way in what we call the periodic table.
65
And just like how learning the English language is basically figuring
66
out how we can combine these different letters to form very interesting words and sentences,
67
the trick to learning about matter is learning how we can combine these different elements to form interesting new things.
68
before?
69
Well, imagine we had a hundred different kinds of Legos with us.
70
Then by combining them in different combinations, you can build up almost anything you want.
71
And now you can imagine some of these Lego structures are like mountains and others are like cats.
72
And we can build whatever we want.
73
We can let our imagination lose over here, which is pretty awesome.
74
But if you break them all down into their basic pieces, you get back your elements.
📺 Aynı Kanal
B15
LearnStorm Growth Mindset: How to write a SMART goal
American AccentBusiness EnglishHigh School StudentsUniversity Students
C115
Introduction to high school physics | Khan Academy
American AccentHigh School StudentsUniversity Students
B19
States of matter | Middle school chemistry | Khan Academy
American AccentTOEFL PrepCambridge Exam PrepHigh School Students
B12
Newton's second law | Middle school physics | Khan Academy
American AccentHigh School StudentsUniversity Students
C13
Derivative as slope of a tangent line | Taking derivatives | Differential Calculus | Khan Academy
American AccentCambridge Exam PrepUniversity StudentsWorking Adults
C15
Molecules, crystals, and diatomic elements | Middle school chemistry | Khan Academy
American AccentHigh School StudentsUniversity Students
B13
Atoms | Middle school chemistry | Khan Academy
American AccentTOEFL PrepCambridge Exam PrepHigh School Students
C13
Pixar in a Box | Welcome to Pixar in a Box | Khan Academy
American AccentHigh School StudentsUniversity Students
C14
Proportional reasoning with motion | AP Physics | Khan Academy
American AccentBusiness EnglishUniversity StudentsWorking Adults
C12
Biology overview
American AccentUniversity Students
C12
Newton, Leibniz, and Usain Bolt | Derivatives introduction | AP Calculus AB | Khan Academy
American AccentCambridge Exam PrepUniversity StudentsWorking Adults
B12
Introduction to interest | Interest and debt | Finance & Capital Markets | Khan Academy
American AccentBusiness EnglishUniversity StudentsWorking Adults
C1How to rationalize a denominator | Exponent expressions and equations | Algebra I | Khan Academy
Cambridge Exam PrepUniversity Students
✨ Video Öner
B12
85 cümleler
Why Are Elements Arranged This Way? | LESSON 4-The Periodic Table | Science in English
Daily ConversationHigh School StudentsUniversity Students
B157 cümleler
Fractions
American AccentHigh School StudentsUniversity Students
B11
338 cümleler
From Basic to Fluent: Transform Your English Fluency with These 5 Elements
American AccentBusiness EnglishDaily ConversationHigh School Students
B18
13 cümleler
Using Rocks and Minerals
High School StudentsUniversity Students
B11
140 cümleler
تعلم القراءة باللغة الانجليزية كورس القراءة المستوى الثاني 7
Daily ConversationHigh School StudentsUniversity Students
B14
68 cümleler
Do these symbols mean anything to you? | Lesson 3: Chemical Elements | Science in English
Cambridge Exam PrepHigh School StudentsUniversity Students
B11
166 cümleler
WHAT ARE NATURAL NUMBERS?
High School StudentsUniversity Students
B14
36 cümleler
Human Blood Video | Blood Components | Blood Cells
High School StudentsUniversity Students
B17
17 cümleler
Our Solar System
High School StudentsUniversity Students
B12
7 cümleler
The Periodic Table Song (2018 Update!) | SCIENCE SONGS
Daily ConversationHigh School StudentsUniversity Students
Bu dersin kelimeleri ve konuşma notları
En çok tekrarlanan kelimeler: element, letter, hydrogen, block, word. Bu videoda gölgeleme çalışması için 74 cümle ve 902 kelime var. Konuşma bölümü 5:10 sürüyor. Konuşmacı dakikada yaklaşık 174 kelimeyle, günlük konuşmaya yakın doğal bir hızda konuşuyor. Kelimelerin %86’i İngilizcede en sık kullanılan 3.000 kelime arasında; geri kalanına başlamadan önce bakmakta fayda var.
Bu videodaki önemli kelimeler
Videodaki en ileri düzey 15 kelime, telaffuzu ve anlamıyla:
| Kelime | Telaffuz | Anlam |
|---|---|---|
| litter isim | /ˈlɪt.ɚ/ | altlık |
| hydrogen isim | /ˈhaɪdɹəd͡ʒ(ə)n/ | hidrojen, müvellidülmâ |
| helium isim | /ˈhiː.li.əm/ | helyum |
| sodium isim | /ˈsəʊ.di.əm/ | sodyum |
| arrange fiil | /əˈɹeɪnd͡ʒ/ | düzenlemek, sıralamak |
| oxygen isim | /ˈɑksɪd͡ʒən/ | oksijen, müvellidülhumuza |
| confuse fiil | /kənˈfjuːz/ | karıştırmak |
| nitrogen isim | /ˈnaɪ.tɹə.d͡ʒən/ | azot, nitrojen |
| calcium isim | /ˈkælsi.əm/ | kalsiyum |
| substance isim | /ˈsʌbstəns/ | madde |
| pipe isim | /ˈpaɪp/ | düdük, kaval |
| symbol isim | /ˈsɪmbəl/ | simge, sembol |
| abbreviation isim | /əˌbɹi.viˈeɪ.ʃn̩/ | kısaltma |
| beryllium isim | /bəˈɹɪl.i.əm/ | berilyum |
| daunting sıfat | /ˈdɔntɪŋ/ | göz korkutucu |
Bu videodaki dil bilgisi
Konuşmacının en çok kullandığı yapılar, videodaki sözcüklerin aynısıyla:
| Yapı | Videoda |
|---|---|
| Edilgen yapı be + fiilin üçüncü hâli — kimin yaptığı değil, ne olduğu önemli | are also made · are called · are also called |
| İlgi cümlecikleri who / which + cümle — bir kişi ya da şey hakkında ek bilgi | Tungsten, which is · people who used · here, which is |
| “might / may” ile olasılık might/may + fiil — mümkün ama kesin olmayan bir şey | might seem · might be |
| Fiil + -ing enjoy, keep, stop… + -ing — ardından -ing biçimi gelen fiiller | keep repeating · start talking |
Dikkat edilecek telaffuzlar
Konuşmacı don't, we'll, they're gibi kısaltılmış biçimleri 13 kez kullanıyor. Bunları duyduğunuz gibi kısa söyleyin.
- “sh” ve “zh” sesleri: abbreviation /əˌbɹi.viˈeɪ.ʃn̩/, combinations /kɑmbɪˈneɪʃənz/, dictionary /ˈdɪk.ʃəˌnɛ.ɹi/, imagination /ɪˌmæd͡ʒəˈneɪʃən/
- Uzun kelimeler — vurguyu doğru yere koyun: periodic /ˌpɪɹiˈɑdɪk/, abbreviation /əˌbɹi.viˈeɪ.ʃn̩/, beryllium /bəˈɹɪl.i.əm/, encyclopedia /ɪnˌsaɪkləˈpidi.ə/, combinations /kɑmbɪˈneɪʃənz/
Türkçe konuşanların zorlandığı sesler:
- /æ/ — “e”den daha açık: calcium /ˈkælsi.əm/, imagination /ɪˌmæd͡ʒəˈneɪʃən/, humanity /hjuˈmænɪti/
Bu videoyla nasıl çalışılır
- Videonun tamamını konuşmadan bir kez dinleyin ve bilmediğiniz kelimeleri not edin.
- 0,75× hızla başlayın, cümle cümle tekrar edin ve kolaylaşınca normal hıza dönün.
- Kendinizi kaydedin ve orijinaliyle karşılaştırın; litter, hydrogen, helium gibi kelimelere özellikle dikkat edin.
Gölgeleme Tekniği Nedir?
Gölgeleme, başlangıçta profesyonel tercüman eğitimi için geliştirilen ve çok dilli Dr. Alexander Arguelles tarafından popüler hale getirilen, bilim destekli bir dil öğrenme tekniğidir. Yöntem basit ama güçlüdür: ana dili İngilizce olan bir sesi dinler ve hemen yüksek sesle tekrar edersiniz — konuşmacıyı 1-2 saniye gecikmeyle takip eden bir gölge gibi. Pasif dinleme veya dilbilgisi alıştırmalarının aksine, gölgeleme beyninizi ve ağız kaslarınızı gerçek konuşma kalıplarını eşzamanlı olarak işlemeye ve yeniden üretmeye zorlar. Araştırmalar, telaffuz doğruluğu, tonlama, ritim, bağlı konuşma, dinleme anlama ve konuşma akıcılığını önemli ölçüde geliştirdiğini göstermektedir — bu da onu IELTS Konuşma hazırlığı ve gerçek dünya İngilizce iletişimi için en etkili yöntemlerden biri yapar.