ฝึกพูดภาษาอังกฤษด้วยเทคนิค Shadowing จากวิดีโอ: Something Travels Faster than Light
กำลังสร้างบทเรียน...
1
Shadows can be faster than light.
2
But nothing can travel faster than the speed of light.
3
Isn't that what Einstein's theory of relativity came down to?
4
Was he wrong?
5
Let's do a thought experiment.
6
Point a flashlight at the moon.
7
Hold your finger into the beam to cast a shadow.
8
Move your finger from left to right.
9
If your flashlight was really powerful, you would see your finger's shadow moving over the moon as fast as it moves across the lens.
10
That shadow is moving faster than the speed of light.
11
How can that be?
12
Well, the trick is that our shadow is not a moving object.
13
That movement is an illusion.
14
The result of following different shadows created by different photons along a certain path.
15
Those photons are physical objects that are indeed traveling to the speed of light.
16
But Einstein's speed limit does not apply to the illusions of movement they can create.
17
Nothing is faster than light is therefore correct.
18
We just have to make sure what we're talking about.
19
But if you ask a ninja, he might still insist that.
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Vocabulary and speaking notes for this lesson
This C1 speaking lesson is built on the video “Something Travels Faster than Light”. The speaker keeps coming back to these words: shadow, faster, speed, moving. This video has 19 sentences and 184 words to shadow. The speech runs for 0:51. The speaker talks fast, about 217 words per minute, so expect linked and reduced sounds. 83% of the words are among the 3,000 most common in English; the rest is worth studying before you start. 3 of its 19 sentences are questions, so it is good practice for question intonation and short answers.
Key vocabulary in this video
The 12 most advanced words in the video, with pronunciation and meaning:
| Word | Pronunciation | Meaning |
|---|---|---|
| shadow noun | /ˈʃædəʊ̯/ | A dark image projected onto a surface where light (or other radiation) is blocked by the shade of an object. |
| finger noun | /ˈfɪŋɡɚ/ | A slender jointed extremity of the human hand, (often) exclusive of the thumb, and the corresponding part, irrespective of including a thumb, in many other… |
| illusion noun | /ɪˈl(j)uːʒ(ə)n/ | A distortion of sensory perception where real stimuli lead to a false or misleading impression of reality. |
| trick noun | /ˈtɹɪk/ | Something designed to fool, dupe, outsmart, mislead or swindle. |
| experiment noun | /ɪkˈspɛɹ.ə.mənt/ | A test under controlled conditions made to either demonstrate a known truth, examine the validity of a hypothesis, or determine the efficacy or likelihood of… |
| lens noun | /lɛnz/ | An object, usually made of glass, that focuses or defocuses the light that passes through it. |
| beam noun | /ˈbiːm/ | Any large piece of timber or iron long in proportion to its thickness, and prepared for use. |
| insist verb | /ɪnˈsɪst/ | To hold up a claim emphatically. |
| ninja noun | /ˈnɪnd͡ʒə/ | One who very skillful, considered similar to the historical ninja, especially in covert or stealthy operation. |
| flashlight noun | /ˈflæʃˌlaɪt/ | A battery-powered hand-held light source. |
| photon noun | /ˈfəʊtɒn/ | The quantum of light and other electromagnetic energy, regarded as a discrete particle having zero rest mass, no electric charge, and an indefinitely long… |
| relativity noun | /ɹɛl.əˈtɪv.ɪ.ti/ | The state of being relative to something else; the absence of universally applicable rules or standards; relativism; (countable) an instance of this. |
Phrasal verbs you will hear
| Word | Meaning |
|---|---|
| come down to verb | To reach by moving down or reducing. |
| move over verb | To move (oneself, or someone/something else) so as to free up space. |
ไวยากรณ์ในวิดีโอนี้
โครงสร้างที่ผู้พูดใช้บ่อยที่สุด พร้อมคำพูดจริงจากวิดีโอ:
| โครงสร้าง | ในวิดีโอ |
|---|---|
| Passive voice be + กริยาช่อง 3 — เน้นสิ่งที่เกิดขึ้น ไม่ใช่ผู้กระทำ | are indeed |
Pronunciation to watch
- The “sh” and “zh” sounds: shadow /ˈʃædəʊ̯/, illusion /ɪˈl(j)uːʒ(ə)n/, flashlight /ˈflæʃˌlaɪt/
- Long words — get the stress right: experiment /ɪkˈspɛɹ.ə.mənt/, relativity /ɹɛl.əˈtɪv.ɪ.ti/
How to practise with this video
- Listen to the whole video once without speaking and note the words you do not know.
- Start at 0.75× speed, shadow it sentence by sentence, then go back to normal speed once it feels easy.
- Record yourself and compare with the original, paying attention to words like shadow, finger, illusion.
เทคนิค Shadowing คืออะไร?
Shadowing เป็นเทคนิคการเรียนรู้ภาษาที่ได้รับการรับรองทางวิทยาศาสตร์ พัฒนาขึ้นสำหรับการฝึกนักแปลมืออาชีพ วิธีการนี้เรียบง่ายแต่ทรงพลัง: คุณฟังเสียงภาษาอังกฤษจากเจ้าของภาษาและพูดตามทันที — เหมือนเงาที่ตามผู้พูดด้วยช่วงเวลาห่าง 1-2 วินาที การวิจัยแสดงว่าเทคนิคนี้ปรับปรุงความแม่นยำในการออกเสียง ทำนองเสียง จังหวะ การเชื่อมเสียง การฟังเข้าใจ และความคล่องแคล่วในการพูดได้อย่างมีนัยสำคัญ