Pratica di Shadowing: How China is designing flood-resistant cities - Impara a parlare inglese con i video
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This isn't a forest.
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Not really.
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It's actually an urban park in the densely populated city of Nanchang, China, filled with birds, native trees,
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and volcanic rock on 137 acres of urban land.
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It's called a sponge city, and it's a type of natural infrastructure
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that architects around the world are designing to help us combat and withstand a changing climate.
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So what does it mean for a city to become spongy?
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This video is presented by Delta Airlines.
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Today, like everywhere else on the globe, cities are feeling the effects of climate change,
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and they often don't have the right infrastructure to help them survive its impacts.
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Some neighborhoods in Houston don't have enough trees to provide shade and relief from rising temperatures.
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Meanwhile, rising sea levels threaten coastal cities like Mumbai and Seoul that don't often have the infrastructure to handle more frequent flooding.
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This is only made worse by the fact that cities are covered with pavement and other surfaces that can't absorb water.
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Urbanization changes habitats.
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So when you build on a place, it removes vegetation, It alters hydrology.
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That's Dr. Charlie Nylon.
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He told me that cities play a complicated role in the climate crisis, especially when it comes to maintaining biodiversity.
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Biodiversity is, simply put, the total number of plants and animals that occur someplace.
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Biodiversity is one of our main support systems for human life on Earth.
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We rely on natural ecosystems full of diverse plants,
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animals, and organisms for essential things like clean water, food, and medicine.
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And biodiversity is critical to defending the earth against climate change.
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We need healthy forests to absorb carbon dioxide from the air, and enough native plants for pollinators to help crops flourish.
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But studies show that as urban expansion continues, it can drive habitat losses that directly put some species in danger, profoundly impacting global biodiversity.
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Cities have a big impact on what happens locally.
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Cities capture a significant number of plant and animal species which are native, so that even in cities, there's a significant amount of biodiversity.
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Which means they can play a role in saving these local plant and animal species.
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The really important thing to think about is not so much how urbanization reduces biodiversity, but really how in cities you can conserve biodiversity.
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One way to do this is by creating environments where nature can flourish.
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Environments that can also help cities soak up excess water.
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And that's where sponge cities come in.
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In 2015, China launched a sponge city pilot program in 30 cities across the country.
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The goal of the program was to coordinate and promote the construction of sponge cities, which would improve urban drainage and flood prevention,
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and create a diverse biological environment.
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Architects did this by supplementing the existing gray infrastructure that relied on concrete pipes and dams with natural solutions,
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like gardens that are designed to capture rain and native trees that suck up excess water through their roots.
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In China, these ideas were taken from ancient drainage systems.
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That's because for centuries, Chinese cities actually handled water pretty well, in part because they were built with nature in mind.
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A study from the scientific journal
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Water recreated some of these old practices.
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Building roofs designed with sloped eaves allowed rainwater to fall onto the permeable pavement below,
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and exterior walls were lined with flowers and trees to absorb rain and stormwater.
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Today, natural solutions like these have been re -implemented in major cities across China.
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In Xi 'an 'an, a sewage pipe was replaced with this natural infiltration system
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that uses vegetation beds to purify storm and rainwater.
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Shanghai replaced concrete roads and sidewalks with this permeable pavement, which is lined with vegetation, to absorb excess water into the soil underground.
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And across Wuhan, dozens of urban gardens like these were planted to absorb water before or it overwhelms communities.
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Most of these projects rely on introducing vegetation in an urban area to soak up excess water.
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This is a really great way to handle flooding, and it also supports urban biodiversity.
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Because you're providing habitat for additional groups, plant and animal species, sometimes you can restore habitats that have been lost.
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Despite these benefits, sponge cities can't fix everything.
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The connection between climate change and flooding is still being studied.
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But when floods do happen, these spongy cities are only able to absorb excess water up to a certain point.
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In 2021, sponge city designs in Zhengzhou failed when historic rainfall drenched the city.
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More than 300 people died from the catastrophic flooding.
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There are other limitations too.
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One review of sponge cities in Guayan, New District, found that national standards and codes for spongy infrastructure are really difficult to enforce because climate,
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hydrology, and even socioeconomics are vastly different from one city to the next.
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So what might work in some cities won't necessarily solve climate -related problems in others.
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Plus, ambitious sponge city designs like the sprawling parks built in China are expensive and require a lot of space, which most cities don't have.
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So some US cities experimenting with natural infrastructure, like LA and Boston,
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are using the green space they already have by trying things like planting vegetation on curbs
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and creating green spaces along median stripes.
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One type of city design certainly won't save us from climate change, but they can make a difference in how we live with
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it we often talk about biodiversity like it's far away
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but it's actually right there and I think the more
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that people understand that the kinds of things they do from where they live
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that really matters people can do things to change cities
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they can do things to make cities different they can do things to make cities better
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Vocabolario e note di pronuncia per questa lezione
Questa lezione di conversazione si basa sul video “How China is designing flood-resistant cities”. Le parole che ritornano più spesso: cities, biodiversity, sponge, climate, urban. Questo video contiene 75 frasi e 954 parole da ripetere con lo shadowing. Il parlato dura 6:27. Chi parla mantiene un ritmo costante di circa 148 parole al minuto, comodo per lo shadowing. Solo il 78% delle parole rientra nelle 3.000 più comuni dell’inglese, quindi il lessico è impegnativo.
Vocaboli chiave di questo video
15 parole del video che vale la pena imparare, con pronuncia e significato:
| Parola | Pronuncia | Significato |
|---|---|---|
| sponge sostantivo | /spʌnd͡ʒ/ | spugna |
| infrastructure sostantivo | /ˈɪnfɹəˌstɹʌkt͡ʃə/ | infrastruttura |
| flood sostantivo | /flʌd/ | inondazione, alluvione |
| absorb verbo | /æbˈsɔɹb/ | assorbire, incorporare |
| excess sostantivo | /ˈɛksɛs/ | eccesso |
| vegetation sostantivo | /ˌvɛd͡ʒəˈteɪʃən/ | vegetazione |
| rely verbo | /ɹɪˈlaɪ/ | fare affidamento, basarsi |
| pavement sostantivo | /ˈpeɪvm(ə)nt/ | pavimentazione stradale, pavimentazione |
| concrete aggettivo | /ˌkɑnˈkɹit/ | concreto, reale |
| capture verbo | /ˈkæp.(t)ʃɚ/ | catturare, riprendere |
| pipe sostantivo | /ˈpaɪp/ | cornamusa |
| diverse aggettivo | /daɪˈvɜːs/ | vario, diverso |
| architect sostantivo | /ˈɑɹ.kɪˌtɛkt/ | ideatore, ideatrice |
| drainage sostantivo | /ˈdɹeɪnəd͡ʒ/ | drenaggio |
| soak verbo | /soʊk/ | inzupparsi, imbeversi |
La grammatica di questo video
Le strutture che chi parla usa di più, con le parole esatte del video:
| Struttura | Nel video |
|---|---|
| Forma passiva be + participio passato — conta ciò che accade, non chi lo fa | is presented · is only made · are designed |
| Present perfect have/has + participio passato — un’azione passata che conta ancora adesso | have been · have been lost |
| Frasi relative who / which + frase — un’informazione in più su una persona o una cosa | species which are · pavement, which is |
Pronuncia a cui fare attenzione
Chi parla usa 10 contrazioni e forme ridotte, come don't, can't, won't. Pronunciale nella forma breve, così come le senti.
- I suoni “th”: threaten /ˈθɹɛt.n̩/, withstand /wɪðˈstænd/
- I suoni “sh” e “zh”: vegetation /ˌvɛd͡ʒəˈteɪʃən/, capture /ˈkæp.(t)ʃɚ/, flourish /ˈflʊ̈ɹ.ɪʃ/, prevention /pɹɪˈvɛnʃən/, shade /ʃeɪd/
- Parole lunghe — attenzione all’accento: infrastructure /ˈɪnfɹəˌstɹʌkt͡ʃə/, vegetation /ˌvɛd͡ʒəˈteɪʃən/, necessarily /ˌnɛs.əˈsɛɹ.ə.li/, complicated /ˈkɑm.plɪˌkeɪ.tɪd/, economics /ˌiːkəˈnɒmɪks/
I suoni difficili per chi parla italiano:
- /h/ — va soffiata, non è muta: habitat /ˈhæb.ɪ.tæt/, shanghai /ˈʃæŋ.haɪ/
- Consonante finale — senza aggiungere una vocale dopo: sponge /spʌnd͡ʒ/, flood /flʌd/, absorb /æbˈsɔɹb/, excess /ˈɛksɛs/, habitat /ˈhæb.ɪ.tæt/
- /æ/ — più aperta della “e”: absorb /æbˈsɔɹb/, habitat /ˈhæb.ɪ.tæt/, capture /ˈkæp.(t)ʃɚ/, dam /ˈdæm/, shanghai /ˈʃæŋ.haɪ/
Come esercitarsi con questo video
- Ascolta tutto il video una volta senza parlare e annota le parole che non conosci.
- Fai shadowing frase per frase a velocità normale, ripetendo ognuna finché il tuo ritmo coincide con quello di chi parla.
- Registrati e confronta con l’originale, facendo attenzione a parole come sponge, infrastructure, flood.
Cos'è la tecnica dello Shadowing?
Shadowing è una tecnica di apprendimento delle lingue supportata da studi scientifici, originariamente sviluppata per la formazione dei traduttori professionisti e resa popolare dal poliglotta Dr. Alexander Arguelles. Il metodo è semplice ma potente: ascolti un audio in inglese di madrelingua e lo ripeti immediatamente ad alta voce — come un'ombra che segue il parlante con un ritardo di solo 1–2 secondi. A differenza dell'ascolto passivo o degli esercizi di grammatica, lo shadowing costringe il tuo cervello e i muscoli della bocca a elaborare e riprodurre simultaneamente i modelli di discorso reale. La ricerca dimostra che migliora significativamente la precisione della pronuncia, l'intonazione, il ritmo, il discorso connesso, la comprensione dell'ascolto e la fluidità del parlato — rendendolo uno dei metodi più efficaci per la preparazione alla prova di speaking dell'IELTS e per la comunicazione reale in inglese.