跟讀練習: Nutrition for a Healthy Life - 通過影片學習英語口語

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From the minute we're born, we're aging.

Constant exposure to our environment, the things we eat, and stresses from both inside and outside our bodies all cause us to age over time.

Aging is highly complex, but scientists are starting to understand what happens at the cellular and molecular levels.

For example, healthy cells are damaged over time

when our our immune systems shift from reacting to short-term problems like injuries

and infections to gradually producing chronic inflammation throughout the body.

Time also gradually shortens the telomeres that act as protective caps for our DNA-containing chromosomes.

These and other changes make our bodies less and less able to deal with stresses from inside and outside of our body, so when damage reaches a critical level,

our cells, tissues, and organs may no longer perform normally, and our health starts to decline.

The changes associated with aging start to happen on some level at day one.

We begin to experience their effects early in life.

For example, we lose the ability to hear certain high-frequency sounds as teenagers.

Our cognition and memory slowly decline after they peak in our mid-20s.

The strength of our bones starts to decrease in our 30s.

Female fertility sharply declines after 35.

Age-related nearsightedness begins in our mid-40s.

And our hair starts to gray and thin as early as our 30s and 40s.

After the age of 50, the changes of aging become increasingly noticeable.

And because aging is the biggest risk factor for most of the diseases that affect us as adults, the older we get, the higher our risk of chronic disease becomes.

While scientists have not yet found a way to stop these processes of aging, they are learning more and more about how to maintain health throughout our lives.

Some aspects of aging are out of our control, like our genetics and our family history,

so we can educate ourselves about moderate risk factors and do our best to reduce them through healthy lifestyle and diet choices.

Most of us can be healthy and active well into our later years if we take care of ourselves.

It's no surprise that regular physical activity can help maintain a healthy weight, improve moods and sleep habits, and boost overall health.

And it's clear that a well-balanced diet full of nutritious foods is critical to good health.

But when it comes to understanding which foods are the best choices, much nutrition research has focused on how certain foods

or nutrients may have a negative effect on health or even play a role in disease development.

More recently, scientists have begun to explore

and understand how nutrition may play a role in promoting healthy aging throughout all of life's stages.

We are rapidly learning about what foods and nutrients should be emphasized in our diets and how they can enhance our health.

Diets full of fruits and veggies, whole grains, legumes, nuts, and lean meats have proven health benefits like lowering blood pressure,

improving glucose control in diabetes, weight loss, improving arthritis, and reducing the risk of cancer and cardiovascular events, to name a few.

And we are learning more about the specific nutrients that can impact health.

For example, plant pigments found in bright orange and red fruits and vegetables may prevent and slow the progression of eye diseases.

Calcium helps to keep bones strong.

B vitamins play a role in maintaining brain health.

And flavonoids from many plants may improve the health of our cardiovascular systems.

The bottom line is that you have the power to maintain and improve your health.

Add vitality to your years and reduce your risk of disease.

And it's never too late to make a change.

To learn more about the nutrients that are critical to your health, and how to safely turn to supplements if you aren't getting enough of these nutrients in your diet,

watch Healthy Aging with Nutrition at www.agingresearch.org slash nutrition.

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本課的詞彙與口語要點

這節 C1 級別的口語課以影片“Nutrition for a Healthy Life”為素材。影片中反覆出現的詞有：aging, healthy, nutrients, diet, disease。這段影片共有 42 個句子、663 個單詞可供跟讀。講話部分時長為 3:59。說話人語速自然，每分鐘約 166 個詞，接近日常對話。只有 80% 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

影片中最難的 15 個單詞，附發音和釋義：

單詞	發音	釋義
nutrient 名詞	/ˈnuː.tɹi.ənt/	養分 /養分, 營養素 /營養素
cardiovascular 形容詞	/ˌkɑːdi.əʊˈvæskjʊlə(ɹ)/	心血管
chromosome 名詞	/ˈkɹoʊməˌsoʊm/	染色體 /染色體
cognition 名詞	/kɑɡˈnɪʃ.ən/	認知 /認知, 認識 /認識
flavonoid 名詞	/ˈfleɪvənɔɪd/	黃酮類化合物 /黃酮類化合物
legume 名詞	/ˈlɛɡ.juːm/	豆類 /豆類, 莢果 /莢果
nearsightedness 名詞	/nɪəɹˈsaɪ.tɪd.nəs/	近視 /近視, 近視眼 /近視眼
nutritious 形容詞	/nuːˈtɹɪʃəs/	有營養 /有營養
pigment 名詞	/ˈpɪɡ.mənt/	色素
shorten 動詞	/ˈʃɔɹtn̩/	弄短
telomere 名詞	/ˈtɛləmɪəɹ/	端粒
vitality 名詞	/vaɪˈtælɪti/	生命力
arthritis 名詞	/ɑːˈθɹ(a)ɪtɪs/	關節炎 /關節炎
emphasize 動詞	/ˈɛm.fə.saɪz/	強調 /強調, 著重
inflammation 名詞	/ɪnfləˈmeɪ̯ʃən/	炎症, 發炎 /發炎

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
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 focused · have begun · have proven
被動語態 be + 過去分詞 — 強調發生了什麼，而不是誰做的	are damaged · should be emphasized

需要注意的發音

說話人用了 3 次縮略和弱讀形式，例如 we're, aren't。請按聽到的簡短形式來說。

“sh” 和 “zh” 音: cognition /kɑɡˈnɪʃ.ən/, nutritious /nuːˈtɹɪʃəs/, shorten /ˈʃɔɹtn̩/, inflammation /ɪnfləˈmeɪ̯ʃən/, sharply /ˈʃɑɹpli/
長單詞——注意重音位置: cardiovascular /ˌkɑːdi.əʊˈvæskjʊlə(ɹ)/, nearsightedness /nɪəɹˈsaɪ.tɪd.nəs/, vitality /vaɪˈtælɪti/, arthritis /ɑːˈθɹ(a)ɪtɪs/, inflammation /ɪnfləˈmeɪ̯ʃən/

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。
先用 0.75 倍速逐句跟讀，熟練之後再回到正常速度。
錄下自己的聲音並與原聲對比，特別注意 nutrient, cardiovascular, chromosome 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: Nutrition for a Healthy Life - 通過影片學習英語口語

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