跟讀練習: Changing the Size of Shadows - 通過影片學習英語口語
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18 句
如果句子過短或過長，請點選 Edit 進行調整。
1
Sources of Light Shadows How can we change the size of a shadow?
2
A shadow is the dark shade made when an object blocks the path of light.
3
There must be a source of light in order to cast a shadow.
4
For example, you might have noticed that your body casts a shadow on the pavement on a sunny day.
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That's because the sun is a source of light, and your body stops the sunlight from reaching the pavement.
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Shadows come in different shapes and sizes, and can be observed wherever there is a source of light, day or night.
7
Let's explore what happens to an object's shadow when it is moved closer to and further away from a source of light.
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Here we have a flashlight and a lion.
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When we turn the flashlight on, a shadow is produced as the lion blocks the path of light.
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We'll move the lion further away from the source of light.
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The shadow is now smaller.
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What do you think will happen when we move the lion closer to the source of light?
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Yes, the shadow gets bigger.
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How do you think the shadow will change if we move the source of light instead of the object?
15
Let's have a look.
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If we move the source of light closer towards the lion, the shadow grows bigger.
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If we move the flashlight further away from the lion, the shadow grows smaller. That was fun!
18
See you next time!
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本課的詞彙與口語要點
這段影片共有 18 個句子、245 個單詞可供跟讀。 講話部分時長為 1:56。 說話人語速平穩，每分鐘約 127 個詞，很適合跟讀。 79% 的單詞屬於英語最常用的 3,000 詞，其餘的詞建議在練習前先學一下。
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 |
|---|---|---|
| shadow 名詞 | /ˈʃædəʊ̯/ | йинзы, йинйинзы |
| lion 名詞 | /ˈlaɪən/ | сызы, 獅 /獅 |
| explore 動詞 | /ɪkˈsploɹ/ | 探索, 探險 /探險 |
| wherever | /(h)wɛɹˈɛvɚ/ | 無論何處 /無論何處 |
| shade 名詞 | /ʃeɪd/ | 陰影 /陰影 |
| sunny 形容詞 | /ˈsʌni/ | 晴朗 |
| observe 動詞 | /əbˈzɜːv/ | 遵守, 遵循 |
| sunlight 名詞 | /ˈsʌnˌlaɪt/ | 陽光 /陽光, 日光 |
| flashlight 名詞 | /ˈflæʃˌlaɪt/ | 手電筒 /手電筒, 電筒 /電筒 |
| object 名詞 | /ˈɑb.d͡ʒɛkt/ | 物體 /物體, 物件 |
| block 名詞 | /blɑk/ | 塊體 /塊體 |
| cast 動詞 | /kæst/ | 拋 /拋, 投 |
| path 名詞 | /pɑːθ/ | 路徑 /路徑, 蹊徑 /蹊徑 |
| notice 動詞 | /ˈnoʊ.tɪs/ | 注意 |
| produce 動詞 | /pɹəˈd͡ʒuːs/ | 製造, 生產 /生產 |
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 | can be observed · is moved · is produced |
| 用 “might / may” 表可能 might/may + 動詞 — 有可能但不確定的事 | might have |
| “will” 表將來 will + 動詞 — 決定、承諾或預測 | We'll move · will happen · will change |
需要注意的發音
- “sh” 和 “zh” 音: shadow /ˈʃædəʊ̯/, shade /ʃeɪd/, flashlight /ˈflæʃˌlaɪt/, shape /ˈʃeɪ̯p/
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 shadow, lion, explore 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。