Shadowing Practice: TRACK 70 - BASIC IELTS LISTENING UNIT 4: POPULAR SCIENCE - Learn English Speaking with Video
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Vocabulary and speaking notes for this lesson
This B1 speaking lesson is built on the video “TRACK 70 - BASIC IELTS LISTENING UNIT 4: POPULAR SCIENCE”. The speaker keeps coming back to these words: lobster, shell, boiled, scream, color. This video has 20 sentences and 216 words to shadow. The speech runs for 1:58. The speaker talks at a steady 110 words per minute, a comfortable pace for shadowing. Only 76% of the words are among the 3,000 most common in English, so the vocabulary is demanding.
Key vocabulary in this video
The 12 most advanced words in the video, with pronunciation and meaning:
| Word | Pronunciation | Meaning |
|---|---|---|
| lobster noun | /ˈlɑb.stɚ/ | A crustacean of the Nephropidae family, dark green or blue-black in colour turning bright red when cooked, with a hard shell and claws, which is used as a… |
| boil verb | /bɔɪ(ə)l/ | To heat to the point where it begins to turn into a gas. |
| scream verb | /skɹiːm/ | To cry out with a shrill voice; to utter a sudden, sharp outcry, or shrill, loud cry, as in fright or extreme pain; to screech, to shriek. |
| pigment noun | /ˈpɪɡ.mənt/ | Any color in plant or animal cells. |
| camouflage noun | /ˈkæ.məˌflɑːʒ/ | A disguise or covering up. |
| deform verb | /dəˈfɔɹm/ | To change the form of (something), usually thus making it disordered or irregular; to give (something) an abnormal or unusual shape. |
| denature verb | /diːˈneɪtjə(ɹ)/ | To take away a natural characteristic or inherent property of (a thing or a person). |
| listener noun | /ˈlɪs(ə)nɚ/ | Someone who listens, especially to a speech or a broadcast. |
| cavity noun | /ˈkæv.ɪt.i/ | A hollow area within the body. |
| molecule noun | /ˈmɑ.lɪ.kjul/ | The smallest particle of a specific element or compound that retains the chemical properties of that element or compound; two or more atoms held together by… |
| whistle noun | /ˈwɪs(ə)l/ | A device designed to be placed in the mouth and blown, or driven by steam or some other mechanism, to make a whistling sound. |
| combine verb | /kəmˈbaɪn/ | To bring (two or more things or activities) together; to unite. |
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 | are boiled · are cooked · are produced |
| Future with “will” will + verb — a decision, promise or prediction | will talk · will make |
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 lobster, boil, scream.
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.