跟讀練習: TOEFL Listening Practice | Lecture | Diabetes - 通過影片學習英語口語
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67 句
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Many individuals suffering from the medical condition known as diabetes rely on artificial insulin to maintain good health.
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The principal means of delivering insulin to the body is via injection,
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but work is being done to develop other reliable means of administering it without having to use a syringe.
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Charlotte Newman reports.
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Diabetes is a condition in which the body does not release or properly respond to insulin, a hormone produced in the pancreas.
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Many diabetics require regular insulin injections to regulate their blood glucose levels, in some cases, as many as 10 or more shots a day.
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Although insulin injections allow diabetics to live full and active lives, the treatment does have inherent disadvantages.
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But at Syracuse University in New York, a new delivery method is currently under development.
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Insulin chewing gum.
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Chemist Max Garcia is here to tell us more.
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Well, while many diabetics inject themselves regularly without any real discomfort, some do experience pain and itching where the needle breaks the skin.
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A condition known as lipodystrophy in which the skin puckers can even develop at the site of multiple injections.
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At affected areas, the absorption of insulin may be impaired, making it difficult to calculate the correct dosage.
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Oral delivery of insulin would, therefore, be a preferable treatment.
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But the development of pills
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and capsules has been hampered by various problems relating to the physical and chemical stability of the hormone.
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One major challenge has been to find a way to protect insulin from the hostile conditions in the digestive system.
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Apparently, insulin molecules delivered by mouth will be broken down by the high acidity they encounter in the digestive tract.
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Scientists have tried various strategies to overcome this obstacle.
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And now the team at Syracuse has come up with a potential solution.
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That's right.
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Using their knowledge of the digestive system,
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our scientists realized that the body has a mechanism to protect valuable molecules as they pass through the digestive system.
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So the team decided to chemically bind insulin molecules to vitamin B12,
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A protein called haptocorin, present in the saliva in the mouth,
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joins with this particular vitamin to ensure its safe passage through the stomach to the intestine.
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The research team's idea was simply for the insulin to hitch a ride, as it were, along with a protected vitamin.
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This particular vitamin seems to be a very good choice once
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the b12 reaches the intestine intact another chemical takes over from the haptocorin to help it enter the bloodstream
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so by binding insulin to vitamin b12 the chances of it
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being absorbed into the bloodstream are optimized early tests with rats indicate
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that the researchers are on the right track in these tests the new treatment was administered in liquid form
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but chewing gum would probably be a more efficient medium for human beings.
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Through the chewing action, we could ensure sufficient haptocorin is produced.
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If this solution proves feasible and viable,
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diabetics might one day be able to throw away their syringes and reach for a pack of 1.
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What is one reason why researchers want to find an alternative delivery system for insulin?
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Number 2.
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What difficulty has impeded attempts to develop an oral insulin treatment?
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Number 3.
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What breakthrough did the chemists at Syracuse University make?
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Number 4.
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In which part of the body does haptocorin's protective function end?
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5. What is the current status of the research into chewing gum as a medium for insolent?
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Number 1.
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What is one reason why researchers want to find an alternative delivery system for insulin?
47
Well, while many diabetics inject themselves regularly without any real discomfort, some do experience pain and itching where the needle breaks the skin.
48
A condition known as lipodystrophy, in which the skin puckers can even develop at the site of multiple injections.
49
Number 2.
50
What difficulty has impeded attempts to develop an oral insulin treatment?
51
Apparently, insulin molecules delivered by mouth will be broken down by the high acidity they encounter in the digestive tract.
52
Scientists have tried various strategies to overcome this obstacle, and now the team at Syracuse has come up with a potential solution.
53
Number three.
54
What breakthrough did the chemists at Syracuse University make?
55
that's right using their knowledge of the digestive system our scientists realized
56
that the body has a mechanism to protect valuable molecules as they pass through the digestive system
57
so the team decided to chemically bind insulin molecules to vitamin b12 a protein called haptocorin,
58
present in the saliva in the mouth, joins with this particular vitamin to ensure its safe passage through the stomach to the intestine.
59
Number 4.
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In which part of the body does haptocorin's protective function end?
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Once the B12 reaches the intestine intact, another chemical takes over from the haptocorin to help it enter the bloodstream.
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So by binding insulin to vitamin B12, the chances of it being absorbed into the bloodstream are optimized.
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Number 5.
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What is the current status of the research into chewing gum as a medium for insulin?
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Early tests with rats indicate that the researchers are on the right track.
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In these tests, the new treatment was administered in liquid form, but chewing gum would probably be a more efficient medium for human beings.
67
Through the chewing action, we could ensure sufficient haptochorin is produced.
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推薦影片
本課的詞彙與口語要點
這節口語課以影片“TOEFL Listening Practice”為素材。 影片中反覆出現的詞有:insulin, vitamin, digestive, chewing, molecules。 這段影片共有 67 個句子、876 個單詞可供跟讀。 講話部分時長為 8:29。 說話人語速較慢,每分鐘約 103 個詞,你有足夠的時間模仿每一個音。 只有 74% 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 |
|---|---|---|
| insulin 名詞 | /ˈɪnsəlɪn/ | 胰島素 /胰島素 |
| vitamin 名詞 | /ˈvɪt.ə.mɪn/ | 維生素 /維生素, 維他命 /維他命 |
| chew 動詞 | /tʃuː/ | 嚼, 咀嚼 |
| molecule 名詞 | /ˈmɑ.lɪ.kjul/ | 分子 |
| injection 名詞 | /ɪnˈd͡ʒɛk.ʃən/ | 注射 |
| scientist 名詞 | /ˈsaɪəntəst/ | 科學家 /科學家 |
| researcher 名詞 | /ˈɹiˌsɝ.t͡ʃɚ/ | 研究員 /研究員, 研究者 |
| oral 形容詞 | /ˈɔː.ɹəl/ | 口的, 口腔的 |
| administer 動詞 | /ədˈmɪn.ɪ.stə/ | 管理 |
| chemist 名詞 | /ˈkɛmɪst/ | 化學家 /化學家 |
| efficient 形容詞 | /ɪˈfɪʃənt/ | 高效率 |
| stomach 名詞 | /ˈstʌmək/ | дўзы, 胃 |
| liquid 名詞 | /ˈlɪk.wɪd/ | 液體 /液體, 液態 /液態 |
| indicate 動詞 | /ˈɪndɪˌkeɪt/ | 表明, 表示 |
| difficulty 名詞 | /ˈdɪfɪkəlti/ | 困難 /困難 |
影片中出現的短語動詞
| 單詞 | 釋義 |
|---|---|
| break down 動詞 | 壞了 /壞了, 出故障 |
| come up with 動詞 | 想出, 提出 |
| throw away 動詞 | 棄置 /棄置, 扔 |
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 | being done · may be impaired · has been hampered |
| 現在完成時 have/has + 過去分詞 — 過去發生但與現在仍有關聯的事 | has been hampered · has been · have tried |
需要注意的發音
- “sh” 和 “zh” 音: injection /ɪnˈd͡ʒɛk.ʃən/, efficient /ɪˈfɪʃənt/, sufficient /səˈfɪʃənt/, artificial /ˌɑː.tɪˈfɪʃ.əl/, absorption /æbˈsɔɹp.ʃn̩/
- 長單詞——注意重音位置: administer /ədˈmɪn.ɪ.stə/, difficulty /ˈdɪfɪkəlti/, mechanism /ˈmɛk.ə.nɪ.zəm/, stability /stəˈbɪlɪti/, artificial /ˌɑː.tɪˈfɪʃ.əl/
中文母語者容易讀錯的音:
- /v/ — 不要讀成 /w/,上齒輕觸下唇: vitamin /ˈvɪt.ə.mɪn/, overcome /ˌəʊ.vəˈkʌm/, protective /pɹəˈtɛk.tɪv/, viable /ˈvaɪəbəl/, disadvantage /ˌdɪsədˈvæntɪd͡ʒ/
- 詞尾子音 — 要讀清楚,後面不要加母音: scientist /ˈsaɪəntəst/, bind /ˈbaɪ̯nd/, chemist /ˈkɛmɪst/, efficient /ɪˈfɪʃənt/, stomach /ˈstʌmək/
- /r/ 和 /l/ 的區別: oral /ˈɔː.ɹəl/, reliable /ɹɪˈlaɪəbl̩/, rely /ɹɪˈlaɪ/, relate /ɹɪˈleɪt/, regulate /ˈɹɛɡ.jə.leɪt/
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 insulin, vitamin, chew 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。






















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