Shadowing Practice: Simple Machines – Wedges - Learn English Speaking with Video
Creating lesson...
1
A wedge is a triangular shaped simple machine that transforms the direction of force,
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often converting a downward force into a horizontal one.
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It functions through its ability to spread or split objects.
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Here are common examples and applications.
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Axe.
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The wedge-shaped head of an axe is used to split wood, applying downward force that spreads sideways, forcing the wood apart.
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Cutting tools Knives and scissors use wedges to concentrate force on a narrow edge, enabling cutting and slicing.
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Needles Operating on the principle of a wedge, they part fibres, creating a path for thread.
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Doorstops Their wedge shape allows them to resist the force applied by a door, keeping it in place.
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Animal teeth.
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Some, like shark teeth, function as wedges to tear through prey efficiently.
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In industrial and construction settings, wedges are used to split materials like stone and concrete or to hold objects in place.
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Artisans and craftsmen often use chisels, a type of wedge to shape wood and stone.
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Wedges are integral to various tools and devices, facilitating a wide array of tasks and processes by efficiently transforming the applied force.
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Vocabulary and speaking notes for this lesson
This B1 speaking lesson is built on the video “Simple Machines – Wedges”. The speaker keeps coming back to these words: wedge, force, split, wood. This video has 14 sentences and 186 words to shadow. The speech runs for 1:32. The speaker talks at a steady 121 words per minute, a comfortable pace for shadowing. Only 67% of the words are among the 3,000 most common in English, so the vocabulary is demanding.
Key vocabulary in this video
The 15 most advanced words in the video, with pronunciation and meaning:
| Word | Pronunciation | Meaning |
|---|---|---|
| wedge noun | /wɛd͡ʒ/ | One of the simple machines; a piece of material, such as metal or wood, thick at one edge and tapered to a thin edge at the other for insertion in a narrow… |
| downward adverb | /ˈdaʊnwɚd/ | Toward a lower level, whether in physical space, in a hierarchy, or in amount or value. |
| efficiently adverb | In an efficient manner. | |
| transform verb | /tɹænsˈfɔɹm/ | To change greatly the appearance or form of. |
| artisan noun | /ˈɑɹtɪzən/ | A skilled manual worker who uses tools and machinery in a particular craft. |
| chisel noun | /ˈt͡ʃɪzəl/ | A cutting tool used to remove parts of stone, wood or metal by pushing or pounding the back when the sharp edge is against the material. It consists of a slim… |
| craftsman noun | /ˈkɹæftsmən/ | One who is highly skilled at one's trade; an artisan or artificer. |
| doorstop noun | Any device or object used to halt the motion of a door, as a large or heavy object, a wedge, or some piece of hardware fixed to the floor, door or wall. | |
| triangular adjective | /tɹaɪˈæŋ.ɡjə.lɚ/ | Shaped like a triangle. |
| sideways adverb | /ˈsaɪdweɪz/ | With a side to the front. |
| scissors noun | /ˈsɪzəz/ | A tool used for cutting thin material, consisting of two crossing blades attached at a pivot point in such a way that the blades slide across each other when… |
| fibre noun | /ˈfaɪ.bə(ɹ)/ | A single piece of a given material, elongated and roughly round in cross-section, often twisted with other fibres to form thread. |
| horizontal adjective | /ˌhoɹəˈzɑn.təl/ | Perpendicular to the vertical; parallel to the plane of the horizon; level, flat. |
| integral adjective | /ˈɪntəɡɹəl/ | Constituting a whole together with other parts or factors; not omittable or removable. |
| prey noun | /pɹeɪ/ | That which is or may be seized by animals to be devoured. |
Pronunciation to watch
- Long words — get the stress right: triangular /tɹaɪˈæŋ.ɡjə.lɚ/, horizontal /ˌhoɹəˈzɑn.təl/, facilitate /fəˈsɪlɪteɪt/
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 wedge, downward, efficiently.
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.