Shadowing Practice: Stalagmite and Stalactite - Learn English Speaking with Video
Creating lesson...
1
Stalagmite and Stalactite A stalactite is a type of formation that hangs from the ceiling of caves.
2
A stalagmite is a type of rock formation that rises from the floor of a cave.
3
Due to the accumulation of material deposited on the floor from ceiling drippings.
4
How stalactites and stalagmites formed is related
5
so once we have found the stalactites often have to find stalagmites in that area as well.
6
Steps to form stalactites and stalagmites are follow these.
7
Rainwater dissolves carbon dioxide in the air, resulting in a carbonic acid solution.
8
Carbonic acid solution penetrates into the ground and react with calcite, the main mineral for limestone in caves, forming a calcium bicarbonate solution.
9
Calcium bicarbonate solution drops into the ceiling of the cave and the floor.
10
Over time, the water in the solution evaporates, leave only calcite.
11
Calcite mineral deposits accumulate slowly, or approximately 0 .13 mm per year.
12
Over millions of years, it will form stalactites and stalagmites.
✨ Recommend Video
B22
15 sentences
Why do People Get Stuck in Caves?
University StudentsWorking Adults
B22
72 sentences
How Is Salt Made? The Process Behind Salt Production
University StudentsWorking Adults
C11
56 sentences
MinuteCement - LC3
Business EnglishUniversity StudentsWorking Adults
B11
243 sentences
GROWTH, DEVELOPMENT AND MATURATION
Daily ConversationUniversity StudentsWorking Adults
C14
7 sentences
How Fossilization Works 🤔
University StudentsWorking Adults
B22
93 sentences
The Hidden Stories of Hanoi Cathedral
University StudentsWorking Adults
C145
7 sentences
Albrecht Fund_FIVE STONES
University StudentsWorking Adults
C11
32 sentences
Types of Transmission Line Structures and Their Components
University StudentsWorking Adults
B258 sentences
Inside a $1 Billion Marble Quarry — How Luxury Stone Is Really Made
Business EnglishUniversity StudentsWorking Adults
C11
37 sentences
Virtual Egypt: The Biggest Egyptian Temple - Karnak
University StudentsWorking Adults
C12
31 sentences
bài học 13 - 2
IELTS PrepTOEFL PrepUniversity Students
C11
114 sentences
There's a Giant Hole In Earth's History
IELTS PrepTOEFL PrepUniversity Students
Vocabulary and speaking notes for this lesson
This video has 12 sentences and 159 words to shadow. The speech runs for 1:13. The speaker talks at a steady 130 words per minute, a comfortable pace for shadowing. Only 65% 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 |
|---|---|---|
| cave noun | /keɪv/ | A large, naturally-occurring cavity formed underground or in the face of a cliff or a hillside. |
| ceiling noun | /ˈsilɪŋ/ | The overhead closure of a room. |
| acid noun | /ˈæsɪd/ | A sour substance. |
| deposit noun | /dɪˈpɑ.zɪt/ | Sediment or rock that is not native to its present location or is different from the surrounding material. Sometimes refers to ore or gems. |
| mineral noun | /ˈmɪn.ə.ɹəl/ | Any naturally occurring solid material that has a (more or less) definite chemical composition and characteristic physical properties; especially, an inorganic… |
| calcium noun | /ˈkælsi.əm/ | The chemical element (symbol Ca) with atomic number 20: a soft, silvery-white alkaline earth metal which occurs naturally as carbonate in limestone and as… |
| react verb | /ɹiːˈækt/ | To act in response. |
| dioxide noun | /daɪˈɑksaɪd/ | Any oxide containing two oxygen atoms in each molecule. |
| limestone noun | /ˈlaɪmˌstoʊn/ | An abundant rock of marine and freshwater sediments; primarily composed of calcite (CaCO₃); and occurring in a variety of forms, both crystalline and amorphous. |
| accumulation noun | /əˌkjuːm.jəˈleɪ.ʃən/ | The act of amassing or gathering, as into a pile. |
| penetrate verb | /ˈpɛnɪtɹeɪt/ | To enter into; to make way into the interior of; to pierce. |
| stalactite noun | /stəˈlækˌtaɪt/ | A secondary mineral deposit of calcium carbonate or another mineral, in shapes similar to icicles, that hangs from the roof of a cave. |
| stalagmite noun | /stəˈlæɡˌmaɪt/ | A secondary mineral deposit of calcium carbonate or other mineral, in shapes similar to icicles, that lies on the ground of a cave. |
| calcite noun | /ˈkælˌsaɪt/ | A very widely distributed crystalline form of calcium carbonate, CaCO₃, found as limestone, chalk and marble. |
| bicarbonate noun | /baɪˈkɑɹ.bə.neɪt/ | the univalent anion HCO₃⁻; any salt of carbonic acid in which only one of the hydrogen atoms has been replaced. |
Pronunciation to watch
- Long words — get the stress right: accumulation /əˌkjuːm.jəˈleɪ.ʃən/, bicarbonate /baɪˈkɑɹ.bə.neɪt/, accumulate /əˈkjuːmjʊˌleɪt/, evaporate /ɪˈvæp.ə.ɹeɪt/
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 cave, ceiling, acid.
Grammar in this video
The structures the speaker uses most, with the exact words from the video:
| Structure | In the video |
|---|---|
| Present perfect have/has + past participle — a past action that still matters now | have found |
| Passive voice be + past participle — the focus is on what happens, not who does it | is related |
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.