Shadowing Practice: Construction Chemicals | ReAgent Chemicals - Learn English Speaking with Video
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Vocabulary and speaking notes for this lesson
This speaking lesson is built on the video “Construction Chemicals”. The speaker keeps coming back to these words: construction, chemical, supply, reagent, manufacture. This video has 17 sentences and 220 words to shadow. The speech runs for 2:44. The speaker talks slowly, about 81 words per minute, so there is time to copy every sound. Only 75% of the words are among the 3,000 most common in English, so the vocabulary is demanding.
Key vocabulary in this video
15 words from the video worth learning, with pronunciation and meaning:
| Word | Pronunciation | Meaning |
|---|---|---|
| concrete adjective | /ˌkɑnˈkɹit/ | Real, actual, tangible. |
| batch noun | /bæt͡ʃ/ | The quantity of bread or other baked goods baked at one time. |
| infrastructure noun | /ˈɪnfɹəˌstɹʌkt͡ʃə/ | An underlying base or foundation for a building, organization, or system. |
| acid noun | /ˈæsɪd/ | A sour substance. |
| reflect verb | /ɹɪˈflɛkt/ | To bend back (light, etc.) from a surface. |
| extend verb | /ɛkˈstɛnd/ | To increase in extent. |
| preparation noun | /ˌpɹɛpəˈɹeɪʃ(ə)n/ | The act of preparing or getting ready. |
| strict adjective | /stɹɪkt/ | Strained; drawn close; tight. |
| depend verb | /dɪˈpɛnd/ | To be contingent or conditioned; to have something as a necessary condition |
| compliance noun | /kəmˈplaɪ.əns/ | An act of complying. |
| flexible adjective | /ˈflɛk.sɪ.bəl/ | Capable of being flexed or bent without breaking; able to be turned or twisted without breaking. |
| precision noun | /pɹɪˈsɪʒ.ən/ | The state of being precise or exact; especially, both exact and accurate. |
| consistency noun | /kənˈsɪs.tən.si/ | Local coherence. |
| certification noun | /ˌsɜː.tɪ.fɪˈkeɪ.ʃən/ | The act of certifying. |
| moisture noun | /ˈmɔɪs.t͡ʃɚ/ | That which moistens or makes damp or wet; exuding fluid; liquid in small quantity. |
Grammar in this video
The structures the speaker uses most, with the exact words from the video:
| Structure | In the video |
|---|---|
| Passive voice be + past participle — the focus is on what happens, not who does it | is checked |
Pronunciation to watch
- The “sh” and “zh” sounds: preparation /ˌpɹɛpəˈɹeɪʃ(ə)n/, precision /pɹɪˈsɪʒ.ən/, certification /ˌsɜː.tɪ.fɪˈkeɪ.ʃən/, transcription /tɹænˈskɹɪpʃən/, corrosion /kəˈɹoʊʒən/
- Long words — get the stress right: infrastructure /ˈɪnfɹəˌstɹʌkt͡ʃə/, preparation /ˌpɹɛpəˈɹeɪʃ(ə)n/, consistency /kənˈsɪs.tən.si/, certification /ˌsɜː.tɪ.fɪˈkeɪ.ʃən/, durability /dəɹəˈbɪləti/
How to practise with this video
- Listen to the whole video once without speaking and note the words you do not know.
- Shadow it sentence by sentence at normal speed, repeating each one until your rhythm matches the speaker.
- Record yourself and compare with the original, paying attention to words like concrete, batch, infrastructure.
What is the Shadowing Technique?
Shadowing is a science-backed language learning technique originally developed for professional interpreter training and popularized by polyglot Dr. Alexander Arguelles. The method is simple but powerful: you listen to native English audio and immediately repeat it out loud — like a shadow following the speaker with just a 1–2 second delay. Unlike passive listening or grammar drills, shadowing forces your brain and mouth muscles to simultaneously process and reproduce real speech patterns. Research shows it significantly improves pronunciation accuracy, intonation, rhythm, connected speech, listening comprehension, and speaking fluency — making it one of the most effective methods for IELTS Speaking preparation and real-world English communication.