跟讀練習: All About Jellyfish - 通過影片學習英語口語

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Today it's time to learn all about jellyfish.

Despite their name, it's important to know that jellyfish are not fish at all.

In fact, to avoid confusion, they are sometimes called sea jellies, or even just jellies.

Characteristics of Jellyfish Jellyfish are invertebrates, which means they don't have bones.

They also have no brain, no heart or other organs like lungs or gills.

Jellyfish obtain the oxygen they need through a process called diffusion, whereby they absorb oxygen directly through their thin body walls from the surrounding water,

allowing them to survive without specialised respiratory organs.

Made up mostly of water, jellyfish are characterised by their gelatinous, umbrella -shaped bells and trailing tentacles.

Jellyfish are free swimming, which means they don't really have a permanent home.

They often drift with ocean currents, travelling through large stretches of the ocean, seas and bays.

Jellyfish play an important role in the ocean.

They function both as predators and prey.

They feed on small fish, plankton and even other jellyfish, using their tentacles to ensnare and immobilise their prey with toxins.

At the same time, they are an essential food source for various larger species, such as turtles and certain fishes.

The main part of a jellyfish is the bell, which looks like an umbrella.

This bell moves by pulsating, pushing water from underneath to help the jellyfish swim or float.

The surface of the bell can be smooth or have frilly edges depending on the type of jellyfish,

and it holds their basic digestive and nervous systems.

Hanging from the bell are the jellyfish's tentacles, which they use to defend themselves and catch food.

These tentacles have thousands of tiny stinging cells called nematocysts.

Each cell has a small dart that can shoot out and deliver venom, which paralyzes or kills small sea creatures.

Jellyfish can stretch out or pull in their tentacles when they need to.

Below the bell are the aural arms, which are thicker and look a bit like the tentacles, but have a different job.

They help move the food caught by the tentacles to the jellyfish's mouth.

Types of Jellyfish Jellyfish are found in every ocean in the world

and they come in a variety of shapes sizes and colors.

Moon jellyfish are one of the most common and recognizable jellyfish species.

The moon jellyfish is known for its translucent saucer -shaped bell which can be up to 40 centimeters in diameter.

These jellyfish typically inhabit temperate and tropical oceans around the world and are often seen in large numbers.

Their The diet mainly consists of plankton and small fish.

The lion's mane jellyfish holds the title for the largest jellyfish.

The lion's mane can have a bell diameter of over 2 metres and tentacles that extend up to 30 metres or more.

It is found in the cold waters of the Arctic, Northern Atlantic and North Pacific Oceans.

The tentacles are grouped in eight clusters, each cluster containing up to 150 tentacles, lined with nematocysts to capture prey.

Known for being one of the most venomous marine creatures,

the box jellyfish has a cube -shaped bell and can grow up to 20 centimetres along each side.

Its tentacles, which can reach up to three metres in length, are covered with potent venom that can be fatal to humans.

Box jellyfish are primarily found in the waters of the Pacific and Indian Oceans, particularly around northern Australia and throughout Southeast Asia.

Cannonball jellyfish are named for their round, cannonball -like shape.

This jellyfish is common in the coastal waters of the southeastern

United States and into the Caribbean.

The bell of the cannonball jellyfish can reach up to 25 centimetres in diameter, and while its sting is not generally harmful to humans,

it can stun small fish.

These are just a few examples of the diverse array of jellyfish species found in oceans around the world.

Jellyfish Life Cycle One super interesting thing about jellyfish is their life cycles, which include several unique stages.

The jellyfish life cycle starts when a female jellyfish releases eggs into the water, which are fertilised by sperm from a male jellyfish.

These fertilised eggs turn into tiny, free -swimming larvae called planuli.

The planuli drift with the ocean currents until they find a good place to settle, like the sea floor or a rock.

They then attach themselves and become polyps, which look like tiny sea anemones.

Polyps can stay in this form for a long time, catching and eating small organisms.

After a while, polyps start to make new jellyfish by forming tiny stacks called aphirae.

These aphirae eventually break off and become young jellyfish.

They grow into adult jellyfish which release eggs and sperm into the water starting the cycle again.

Jellyfish and people.

Interactions between jellyfish and people cover a wide range of experiences from harmful to beneficial.

Jellyfish stings are a common concern as their venomous tentacles can cause pain, allergic reactions and, in rare cases, severe health issues.

Jellyfish are also a source of food for people in several cultures, particularly in Asia, where they are harvested,

processed and enjoyed for their unique texture and purported health benefits.

Moreover, jellyfish play a significant role in scientific research.

Their simple nervous systems and bioluminescent properties have provided valuable insights into cellular processes and neurological functions,

contributing to advancements in medical and biological sciences.

Thus, the relationship between jellyfish and humans is a complex interplay of danger, nutrition and scientific discovery.

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本課的詞彙與口語要點

這節口語課以影片“All About Jellyfish”為素材。影片中反覆出現的詞有：jellyfish, tentacles, bell, ocean, sea。這段影片共有 62 個句子、907 個單詞可供跟讀。講話部分時長為 7:36。說話人語速平穩，每分鐘約 119 個詞，很適合跟讀。只有 72% 的單詞屬於英語最常用的 3,000 詞，詞彙難度較高。

影片中的重點詞彙

影片中 15 個值得學習的單詞，附發音和釋義：

單詞	發音	釋義
egg 名詞	/ɛɡ/	卵, 卵子
swim 動詞	/swɪm/	游泳
diameter 名詞	/daɪˈæmɪdɚ/	直徑 /直徑
prey 名詞	/pɹeɪ/	獵物 /獵物
sting 動詞	/ˈstɪŋ/	蜇, 叮
metre 名詞	/ˈmiːtəɹ/	米, 公尺
stretch 動詞	/stɹɛt͡ʃ/	伸展, 拉
oxygen 名詞	/ˈɑksɪd͡ʒən/	氧
organ 名詞	/ˈɔːɡən/	器官
cluster 名詞	/ˈklʌstɚ/	串, 叢 /叢
harmful 形容詞	/ˈhɑɹmfl̩/	有害, 不良
umbrella 名詞	/ʌmˈbɹɛl.ə/	傘 /傘, 雨傘 /雨傘
jelly 名詞	/ˈd͡ʒɛli/	果凍 /果凍, 果子凍 /果子凍
venom 名詞	/ˈvɛnəm/	毒液, 毒
bone 名詞	/boʊn/	гўдў, гўдўзы

影片中出現的短語動詞

單詞	發音	釋義
make up 動詞	/ˌmeɪk ˈʌp/	組成 /組成

影片中的語法

說話人最常用的結構，並附上影片中的原話：

結構	影片中的用法
被動語態 be + 過去分詞 — 強調發生了什麼，而不是誰做的	are sometimes called · are characterised · are found
定語從句 who / which + 從句 — 補充說明人或事物	invertebrates, which means · swimming, which means · arms, which are

需要注意的發音

“th” 音: thin /ˈθɪn/, thick /θɪk/, smooth /smuːð/, underneath /ˌʌndɚˈniθ/
“sh” 和 “zh” 音: capture /ˈkæp.(t)ʃɚ/, interaction /ˌɪn.təˈɹæk.ʃən/, confusion /kənˈfjuːʒən/, nutrition /njuːˈtɹɪʃ.ən/, beneficial /ˌbɛn.ɪˈfɪʃ.əl/
長單詞——注意重音位置: diameter /daɪˈæmɪdɚ/, primarily /ˈpɹaɪ.mə.ɹə.li/, biological /ˌbaɪ.əˈlɑ.d͡ʒɪ.kəl/, interaction /ˌɪn.təˈɹæk.ʃən/, beneficial /ˌbɛn.ɪˈfɪʃ.əl/

中文母語者容易讀錯的音：

/v/ — 不要讀成 /w/，上齒輕觸下唇: venom /ˈvɛnəm/, discovery /dɪˈskʌv.ɹi/, diverse /daɪˈvɜːs/, moreover /mɔːˈɹəʊ.və/, harvest /ˈhɑɹ.vəst/
詞尾子音 — 要讀清楚，後面不要加母音: egg /ɛɡ/, stretch /stɹɛt͡ʃ/, drift /dɹɪft/, defend /dɪˈfɪnd/, thick /θɪk/
/r/ 和 /l/ 的區別: harmful /ˈhɑɹmfl̩/, umbrella /ʌmˈbɹɛl.ə/, primarily /ˈpɹaɪ.mə.ɹə.li/, trail /tɹeɪl/, tropical /ˈtɹɑ.pɪ.kəl/

如何用這段影片練習

先完整聽一遍影片，不要開口，記下不認識的單詞。
用正常速度逐句跟讀，每句重複到你的節奏與說話人一致為止。
錄下自己的聲音並與原聲對比，特別注意 egg, swim, diameter 這類單詞。

什麼是跟讀法？

跟讀法 (Shadowing) 是一種有科學依據的語言學習技巧，最初開發用於專業口譯員的培訓，並由多語言者Alexander Arguelles博士普及。這個方法簡單而強大：您在聽英語母語原聲的同時立即大聲重複——就像是一個延遲1-2秒緊跟說話者的影子。與被動聽力或語法練習不同，跟讀法強迫您的大腦和口腔肌肉同時處理並模模擬實的講話模式。研究表明它能顯著提高發音準確性，語調，節奏，連讀，聽力理解和口語流利度——使其成為雅思口語備考和真實英語交流最有效的方法之一。

影子跟讀法: 閱讀完整分步指南 →

跟讀練習: All About Jellyfish - 通過影片學習英語口語

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