Luyện nói tiếng Anh bằng Shadowing qua video: How a Super El Niño affects the global climate
Đang tạo bài học...
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Strange things are happening around the Pacific Ocean right now.
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A 10-foot great white shark spotted dangerously close to a group of children swimming north of Los Angeles.
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Hundreds of hungry pelicans are flocking to Peruvian ports and coastal markets.
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The worst winter storm front to hit Chile in more than a decade.
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And all signs point to El Nino as a major reason why.
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The number of climate models are calling for the possibility of a Super El Nino brewing this summer.
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El Nino is not uncommon.
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This climate phenomenon occurs every few years, but this one could be different.
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It's been called a potential super or Godzilla El Nino, and it could fuel extreme and dangerous weather conditions globally through 2027.
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So now seems like a good time to explain the science behind El Nino, how strong this one might be, and how it could impact our global ecosystem.
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And El Nino gets declared when trade winds shift and temperatures rise in the Pacific Ocean.
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The trade winds along the equator are constantly blowing from the east to the west.
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They're called the trade winds because hundreds of years ago, the sailing ships could rely on those steady winds to move them across the Pacific.
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And they essentially pile up warm water in the far western Pacific.
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When they slow down, even briefly, they can allow that warm water to slide backwards under the surface of the ocean.
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All of that water will become warm as those trade winds weaken.
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And then when they hit about a half a degree centigrade, about one degree Fahrenheit over the central Pacific,
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then our team here will declare an El Nino event.
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Noah says the El Nino has officially begun.
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El Nino is a part of the naturally recurring climate pattern known as the El Nino Southern Oscillation or ENSO.
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That acronym ENSO, El Nino Southern Oscillation, it encompasses the entire El Niño and La Niña system.
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La Niña is the opposite phase with cooler than average surface temperature.
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And generally we see swings between the two.
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They tend to recur on a two to seven year cycle.
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There's also a neutral phase in the middle when neither El Niño nor La Niña are present.
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So El Niño is just a normal part of this constantly replaying cycle in the ocean.
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But what's not normal is how strong scientists are predicting that this current El Nino could become.
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We do have a grading system.
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We actually grade it based on the sea surface temperatures in the Central Pacific, greater than 2 degrees Celsius, which is about 3.8 degrees Fahrenheit.
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It's a very strong El Nino.
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We have an 81% chance of being in a very strong El Nino.
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That's the highest odds I've seen for that.
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The atmospheric response scales with that.
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So if that temperature is much,
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much warmer than average, then that's a stronger El Nino and has a stronger influence over global atmospheric circulations.
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A contributing factor to the strength of this El Nino is what's known as a Kelvin wave,
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a 9,000-mile-long warm water mass moving across the Pacific that's a whopping 7.5 degrees Celsius
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or 13.5 degrees Fahrenheit warmer than the average.
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That warm water moving under the surface, it rises up as it moves to the east
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and provides a source of heat for the surface and therefore feeds an El Nino event.
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We've only seen El Ninos with this much strength a few times in the past.
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From 1877 to 1878, an El Nino caused a famine that killed millions of people.
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From 1982 to 1983, a superpowered El Nino brought drought to nearly every continent and destructive floods in North and South America.
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And another from 1997 to 98 caused widespread record rainfalls, mudslides, wildfires, and coral bleaching.
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So what can we expect with the strength of the current El Nino continuing to gather over the coming months?
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The World Meteorological Organization's seasonal outlook is predicting temperatures and rainfall far outside of global averages.
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And a stronger El Nino means more intense shifts in weather.
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It makes a parade of storms more likely to happen.
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Because El Nino can shift rain away from where it normally falls, it's not just that wetness or dryness increases, but where it increases.
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In places that aren't necessarily used to dealing with those conditions.
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You can get a lot of these kind of pattern changes.
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There's parts of western Chile, the Atacama Desert, that, you know, they don't get rain maybe once every 25 years, but they do when it's in El Nino.
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More wetness into Southern California, across Arizona, Texas.
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The potential risk of extreme weather events is higher given the strength of this El Nino.
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Droughts in Southern Asia, flooding in the Americas, and hurricanes forming in the East Pacific Ocean.
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They can bring a lot more rainfall to Peru, Ecuador, and Chile and have devastating consequences there.
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We see drier conditions in Indonesia, which can contribute to wildfires.
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The far eastern Pacific can be, the water can be quite a lot warmer than average,
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and that has a lot of implications for fish and for species that depend on fish.
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Those sharks that are showing up on the beaches of Southern California, they're heading north of their usual habitat because their normal hangouts have gotten too warm,
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and the fish that they eat are migrating to cooler, more nutrient-rich water.
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And as this El Nino gathers strength, it appears it will continue through the winter when it's expected to peak.
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North America, southern Australia, and some other regions like that, we expect those impacts to be greater in the winter.
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More rain, especially in the southern tier of the US.
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Historically, we have seen snowier winters during El Nino, largely because of that increased moisture.
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But even with that foresight, we still face a test of what some are calling one of the strongest El Ninos ever recorded.
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Từ vựng và ghi chú luyện nói cho bài học này
Bài luyện nói trình độ B2 này dựa trên video “How a Super El Niño affects the global climate”. Những từ được nhắc lại nhiều nhất trong bài: Nino, Pacific, southern, warm, degree. Video này có 66 câu và 989 từ để luyện shadowing. Phần lời nói dài 6:19. Người nói nói với tốc độ tự nhiên, khoảng 156 từ mỗi phút, gần với hội thoại hằng ngày. Chỉ 78% số từ nằm trong 3.000 từ tiếng Anh thông dụng nhất, nên từ vựng khá khó.
Từ vựng quan trọng trong video
15 từ khó nhất trong video, kèm phiên âm và nghĩa:
| Từ | Phiên âm | Nghĩa |
|---|---|---|
| rainfall danh từ | lượng mưa | |
| wildfire danh từ | /ˈwaɪldˌfaɪər/ | chất cháy |
| drought danh từ | /ˈdɹaʊ̯t/ | hạn hán |
| declare động từ | /dɪˈklɛɚ/ | ban bố, ban hành |
| predict động từ | /pɹɪˈdɪkt/ | dự báo |
| centigrade danh từ | thang bách phân | |
| equator danh từ | /ɪˈkweɪ.tɚ/ | xích đạo |
| mudslide danh từ | /ˈmʌdˌslaɪd/ | lở đất |
| pelican danh từ | /ˈpɛl.ɪ.kən/ | bồ nông |
| nutrient danh từ | /ˈnuː.tɹi.ənt/ | chất dinh dưỡng, dưỡng chất |
| famine danh từ | /ˈfæm.ɪn/ | nạn đói |
| flock danh từ | /flɑk/ | bầy, đàn |
| ecosystem danh từ | /ˈikoʊˌsɪstəm/ | hệ sinh thái |
| coral danh từ | /ˈkɔɹəl/ | san hô |
| destructive tính từ | /dɪˈstɹʌktɪv/ | phá hoại, huỷ diệt |
Cụm động từ bạn sẽ nghe
| Từ | Nghĩa |
|---|---|
| pile up động từ | vun |
Ngữ pháp trong video
Những cấu trúc người nói dùng nhiều nhất, kèm đúng cụm từ trong video:
| Cấu trúc | Trong video |
|---|---|
| Thì hiện tại hoàn thành have/has + quá khứ phân từ — việc đã xảy ra nhưng còn liên quan đến hiện tại | I've seen · We've only seen · have gotten |
| Mệnh đề quan hệ who / which + mệnh đề — thêm thông tin về người hoặc vật | Celsius, which is · Indonesia, which can |
Phát âm cần chú ý
Người nói dùng 6 dạng rút gọn, ví dụ they're, aren't, don't. Hãy nói theo dạng ngắn đúng như bạn nghe.
- Âm “sh” và “zh”: implication /ˌɪmpləˈkeɪʃən/, circulation /ˌsɝkjʊˈleɪʃən/
- Từ dài — đặt trọng âm cho đúng: atmospheric /ˌætməsˈfɛɹɪk/, implication /ˌɪmpləˈkeɪʃən/, ecosystem /ˈikoʊˌsɪstəm/, circulation /ˌsɝkjʊˈleɪʃən/, historically /hɪˈstɔɹɪkli/
Những âm người Việt thường gặp khó:
- Cụm phụ âm cuối — đọc đủ từng âm, đừng nuốt âm cuối: predict /pɹɪˈdɪkt/, nutrient /ˈnuː.tɹi.ənt/, continent /ˈkɑntɪnənt/, consequence /ˈkɑn.sɪ.kwəns/, depend /dɪˈpɛnd/
- Âm /tʃ/, /dʒ/ và /ʒ/ — tiếng Việt không có, đừng đọc thành “ch” hay “gi”: bleach /bliːt͡ʃ/, moisture /ˈmɔɪs.t͡ʃɚ/
- Âm /æ/ — mở miệng rộng hơn âm “e”: atmospheric /ˌætməsˈfɛɹɪk/, acronym /ˈækɹənɪm/, famine /ˈfæm.ɪn/, backward /ˈbækwɚd/, habitat /ˈhæb.ɪ.tæt/
Cách luyện với video này
- Nghe hết video một lần, chưa cần nói, và ghi lại những từ bạn chưa biết.
- Bắt đầu ở tốc độ 0,75×, nói đuổi từng câu, rồi quay lại tốc độ bình thường khi đã quen.
- Ghi âm giọng mình rồi so với bản gốc, chú ý các từ như rainfall, wildfire, drought.
Phương Pháp Shadowing Là Gì?
Shadowing là kỹ thuật học ngôn ngữ có cơ sở khoa học, ban đầu được phát triển cho chương trình đào tạo phiên dịch viên chuyên nghiệp và được phổ biến rộng rãi bởi nhà đa ngôn ngữ học Dr. Alexander Arguelles. Nguyên lý cốt lõi đơn giản nhưng cực kỳ hiệu quả: bạn nghe tiếng Anh của người bản xứ và lặp lại to ngay lập tức — như một "cái bóng" (shadow) đuổi theo người nói với độ trễ chỉ 1–2 giây. Khác với luyện ngữ pháp hay học từ vựng bị động, Shadowing buộc não bộ và cơ miệng phải đồng thời xử lý và tái tạo ngôn ngữ thực tế. Các nghiên cứu khoa học xác nhận phương pháp này cải thiện đáng kể phát âm, ngữ điệu, nhịp điệu, nối âm, kỹ năng nghe và độ lưu loát khi nói — đặc biệt hiệu quả cho người luyện IELTS Speaking và muốn giao tiếp tiếng Anh tự nhiên như người bản ngữ.