Pratica di Shadowing: What's an if statement? 🤔 - Impara a parlare inglese con i video
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All right guys, we are on if statements.
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With an if statement, you do something if a condition you set is true.
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If not, then don't do it.
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It's as simple as that.
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We'll ask a user what their age is.
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If their age is greater than or equal to 18, they'll be allowed into our site.
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If they're under 18, well, we won't let them in.
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Let's declare variable age.
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Int age.
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Then we'll create a prompt.
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standard output enter your age.
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Standard input age.
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Okay, this is how to write an if statement.
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You type if, then a set of parentheses, then a set of curly braces.
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If some condition within the parentheses is true, you perform some subset of code.
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We are going to check if age is greater than or equal to 18.
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Greater than or equal to is a comparison operator.
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There's other comparison operators such as less than or equals to, less than, greater than.
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If you need to compare if two values are equal, you use two equal signs.
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You don't wanna say equals because then you're setting age equal to 18.
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Equals is the assignment operator.
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So let's check to see if age is greater than or equal to 18.
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Then we'll print a message.
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Standard output.
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Welcome to the site.
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Okay, let's Let's try this.
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Enter your age.
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Let's say that I'm 12.
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Well, it doesn't do anything.
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Since this condition evaluated to be false, we skip over this body of code.
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If it were true, then we execute it.
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This time my age is 21.
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I hit enter.
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Welcome to the site.
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If you would rather do something else if a condition is false, you can use an else statement.
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An else statement you will place at the end.
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There is no condition.
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Else, we will print standard output.
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You are not old enough to enter.
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Okay, let's try this again.
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Enter your age.
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I'll say that I'm 12.
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You are not old enough to enter.
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That's an if statement.
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If some condition is true, you do something.
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If not, you can do something else or nothing at all.
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There are more conditions you can check by using an else if statement.
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We can check another condition by adding else if.
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If this condition is false, check this else if condition.
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Let's check to see if age is less than zero.
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That means somebody hasn't been born yet.
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You haven't been born yet.
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Okay, now check this out.
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Let's say that my age is negative 10.
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Then I hit enter.
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You haven't been born yet.
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Since this condition was false, we skip this section of code.
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Then we check the else if statement.
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Since this condition was true, we execute this body of code.
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Then skip over the else statement.
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Let's add one more else if statement.
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Else if...
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Age is greater than or equal to 100.
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Standard.
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Output.
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You are too old to enter this site.
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Okay, enter your age.
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I am 120 years old.
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I hit enter.
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Welcome to the site.
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We check these conditions one by one starting from the top.
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We stated that our age was 120 years old.
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Even though we were expecting to execute this body of code, we instead executed this body of code within the if statement.
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That's because our age was technically still greater than or equal to 18.
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So the order of your if and else if statements does matter.
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It makes a difference.
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If we need to execute this body of code, if somebody's age is greater than or equal to 100, well then we should probably move that to the top.
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Then turn it into an if statement.
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Else if age is greater than or equal to 18, we will display this message.
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Let's try this one more time.
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Enter your age.
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I am 120 years old.
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I hit enter.
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You are too old to enter this site.
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So yeah, that's an if statement.
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You do something if a condition is true.
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If not, then you don't do it.
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If you would rather do something else, you can use an else statement.
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If there's other conditions you would like to check before reaching the else statement, you can use an else if statement.
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And there's really no limit to these.
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If you would like a copy of this code, I'll post this in the comment section down below.
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And well, yeah, those are if statements in C++.
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Vocabolario e note di pronuncia per questa lezione
Questa lezione di conversazione di livello B1 si basa sul video “What's an if statement? 🤔”. Le parole che ritornano più spesso: statement, condition, equal, enter, greater. Questo video contiene 92 frasi e 733 parole da ripetere con lo shadowing. Il parlato dura 4:53. Chi parla ha un ritmo naturale di circa 150 parole al minuto, vicino a una conversazione quotidiana. Il 92% delle parole rientra nelle 3.000 più comuni dell’inglese, quindi il lessico è facile da seguire.
Vocaboli chiave di questo video
Le 12 parole più avanzate del video, con pronuncia e significato:
| Parola | Pronuncia | Significato |
|---|---|---|
| execute verbo | /ˈɛksɪˌkjuːt/ | giustiziare |
| skip verbo | /skɪp/ | balzare, saltellare |
| operator sostantivo | /ˈɑpəˌɹeɪtɚ/ | operatore |
| parenthesis sostantivo | /pəˈɹɛn.θə.sɪs/ | parentesi |
| subset sostantivo | /ˈsʌbˌsɛt/ | sottoinsieme |
| curly aggettivo | /ˈkɝli/ | arricciato |
| brace sostantivo | /bɹeɪs/ | abbraccio |
| prompt verbo | /pɹɑmpt/ | incitare, guidare |
| evaluate verbo | /ɪˈvaljʊeɪt/ | valutare |
| declare verbo | /dɪˈklɛɚ/ | dichiarare |
| technically avverbio | /ˈtɛk.nɪˌkəl.i/ | veramente, tecnicamente |
| variable aggettivo | [ˈvæɹ.i.ə.bl̩] | variabile, regolabile |
Frasi da ripetere
Frasi brevi e complete del video che puoi riutilizzare nella conversazione di tutti i giorni:
- We'll ask a user what their age is.
- Then we'll create a prompt.
- Then we'll print a message.
- You haven't been born yet.
- Let's add one more else if statement.
La grammatica di questo video
Le strutture che chi parla usa di più, con le parole esatte del video:
| Struttura | Nel video |
|---|---|
| Frasi condizionali if + frase, will/would + verbo — una condizione e il suo risultato | If they're under 18, well, we won't let · If there's other conditions you would like |
| Forma passiva be + participio passato — conta ciò che accade, non chi lo fa | be allowed · been born |
| Present perfect have/has + participio passato — un’azione passata che conta ancora adesso | hasn't been born · haven't been born |
| Comparativi -er than / more … than — confrontare due cose | greater than |
Pronuncia a cui fare attenzione
Chi parla usa 19 contrazioni e forme ridotte, come don't, we'll, haven't. Pronunciale nella forma breve, così come le senti.
- Parole lunghe — attenzione all’accento: operator /ˈɑpəˌɹeɪtɚ/, parenthesis /pəˈɹɛn.θə.sɪs/, technically /ˈtɛk.nɪˌkəl.i/
I suoni difficili per chi parla italiano:
- Consonante finale — senza aggiungere una vocale dopo: execute /ˈɛksɪˌkjuːt/, skip /skɪp/, parenthesis /pəˈɹɛn.θə.sɪs/, subset /ˈsʌbˌsɛt/, brace /bɹeɪs/
Come esercitarsi con questo video
- Ascolta tutto il video una volta senza parlare e annota le parole che non conosci.
- Inizia a velocità 0,75×, fai shadowing frase per frase e torna alla velocità normale quando diventa facile.
- Registrati e confronta con l’originale, facendo attenzione a parole come execute, skip, operator.
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.