一項新的科學發現可能在未來幫助延緩皮膚衰老的跡象。一個科研團隊查明瞭人體幹細胞生產皮膚細胞的過程，並且成功地在實驗室環境中培育出瞭一小片皮膚。
The basic building blocks of humans are cells. When embryos are first fertilised, they’re all the same. But after three weeks, they begin to specialise and clump together to form the various bits of the body.
人體結構最基本的組成是細胞。當胚胎剛受精時，它們的細胞是完全相同的。但三周後，細胞會開始分化並分別凝聚形成人體的各個部分。
The secret to learning how humans are built [lies] deep in the heart of these cells. Specifically, the Human Cell Atlas project aims to find out which genes are turned on at what times and in which locations. Researchers have now published details of how this happens in skin. This raises the possibility of eventually slowing down the signs of ageing.
瞭解人體構造的秘密就藏在這些細胞深處。具體來說，人類細胞圖譜項目的目標就是找出基因會在何時何處被激活。研究人員目前已經公佈瞭這一過程在皮膚中如何進行的細節。這一發現可能增加瞭最終延緩衰老跡象的可能性。
詞匯表
building blocks 基本組成
cells 細胞
embryos 胚胎
fertilised 受精
specialise （細胞）分化
clump together 聚成一團
Atlas 圖譜
genes 基因
ageing 衰老，老化
閱讀理解：請在讀完上文後，回答下列問題。
1. When embryos are first fertilised, what are all the same?
2. What happens when cells clump together?
3. What does the Human Cell Atlas project hope to find out about genes?
4. What is mentioned as a possible result of this research?
答案
1. When embryos are first fertilised, what are all the same?
When embryos are first fertilised, cells are all the same.
2. What happens when cells clump together?
When cells clump together, they form different parts of the body.
3. What does the Human Cell Atlas project hope to find out about genes?
The Human Cell Atlas project aims to find out which genes are turned on at what times and in which locations.
4. What is mentioned as a possible result of this research?
The research raises the possibility of eventually slowing down the signs of ageing.
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