1. used to refer to a specific person, thing, idea, or situation that has been mentioned or is understood
用於指代已經提到或雙方都明白的特定的人、事物、想法或情況
That's the book I was telling you about.
那就是我跟你提過的那本書。
Look at that! That's amazing!
看那個！那真是太棒了！
That's Meaning（定義、用法、例句與發音）
that's
pronoun
快速理解
What does "That's" mean?What are 2-3 core uses of "That's"?
「that's」是「that is」的縮寫形式，主要用於介紹、解釋或強調某事物。
- 1
介紹或指出
EN: That's my brother over there.
翻譯: 那邊那位是我的兄弟。
- 2
解釋或說明
EN: That's why I was late.
翻譯: 那就是我遲到的原因。
- 3
強調或表達情感
EN: That's amazing!
翻譯: 那真是太棒了！
- 4
回應或確認
EN: That's correct.
翻譯: 那是正確的。
小提醒：注意「that's」是「that is」的縮寫，不是「that has」的縮寫。在正式寫作中，通常會避免使用縮寫形式。
發音（How to Pronounce "That's" in English）
How to pronounce "That's" in English?"That's" US vs UK pronunciation
點擊下方的 US / UK 按鈕可播放發音。
Real-life Examples of "That's" from YouTube Videos
South Korea would accept Trump-Kim deal to freeze North Korea’s nuclear programme | BBC News
BBC News
“The North Korean leader, Kim Jong-un, has suggested that he's willing to negotiate with Donald Trump on condition that the US did not insist Pyongyang gives up its nuclear weapons.”
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Definitions（定義）
What are the definitions of "That's"?How does "That's" change by context?
2. used to introduce a defining or restrictive clause
用於引導一個限定性或定義性的子句
The house that's on the corner is for sale.
在轉角的那棟房子正在出售。
I need the book that's on the top shelf.
我需要放在最上層書架的那本書。
3. used to refer to the more distant of two things near to the speaker
用於指代說話者附近兩件事物中較遠的那一個
This is my bag, and that's yours over there.
這是我的包包，那邊那個才是你的。
I prefer this color to that's.
比起那個顏色，我更喜歡這個。
4. contraction of 'that is'
「that is」的縮寫形式
That's my brother.
那是我弟弟。
That's not what I meant.
那不是我原本的意思。
That's a good idea.
那是個好主意。
5. contraction of 'that has' (when 'has' is an auxiliary verb)
「that has」的縮寫形式（當 has 作為助動詞時）
That's been a problem for a long time.
那個問題已經存在很久了。
The car that's just arrived is mine.
剛剛抵達的那輛車是我的。
Grammar & Patterns（句型）
What are common sentence patterns for "That's"?How to make natural sentences with "That's"?
| Pattern | Meaning | Example |
|---|---|---|
| that's + noun phrase | 那是… | That's my book. (那是我的書。) |
| that's + adjective | 那很… | That's interesting. (那很有趣。) |
| that's + why/where/when/how... | 那就是為什麼/在哪裡/何時/如何… | That's why I called you. (那就是我打電話給你的原因。) |
| that's + not + noun/adjective | 那不是… / 那不… | That's not the point. (那不是重點。) |
| that's + a/an + (adjective) + noun | 那是一個… | That's a good idea. (那是個好主意。) |
| that's + what/who/which... | 那就是…的東西/人 | That's what I meant. (那就是我的意思。) |
| that's + all/there is | 就這樣 / 就這些 | That's all for today. (今天就到這裡。) |
用法說明
How is "That's" different from similar structures?What usage mistakes are common with "That's"?
that's 與 that is 的用法
- that's 是 that is 的縮寫形式，在口語和非正式書寫中非常普遍。
- 在正式寫作（如學術論文、官方文件）中，通常建議使用完整的 that is。
- 在句子開頭或需要特別強調時，使用 that is 會比 that's 聽起來更有力、更正式。
- 在疑問句尾的附加問句中，必須使用 isn't it 而非 that's not 的縮寫，例如："That's your car, isn't it?"
對比例句： EN: That's the main point of the argument. 翻譯: 那就是論點的主要核心。
EN:The committee concluded that is an unacceptable risk.
翻譯:委員會的結論是，那是一個不可接受的風險。
總結建議
在口語和一般溝通中可自由使用 that's，但在正式文書中應優先使用 that is 以保持嚴謹性。
易混淆對比
What is the difference between "That's" and similar words?How to choose "That's" vs alternatives?
that's vs that
「that's」是「that is」或「that has」的縮寫形式，用於表達「那是」或「那已經」。而「that」單獨使用時，主要作為指示代詞（那個）、關係代詞或連接詞。
that's vs it's
「that's」特指「那個是」，用於指代較遠或特定的事物。而「it's」是「it is」的縮寫，指代較近、已知或前述的事物，意為「它是」。兩者都常用於口語中引述或說明。
that's vs this is
「that's」指「那是」，用於指代距離說話者較遠或剛被提及的事物。而「this is」指「這是」，用於介紹眼前或自己這邊的人事物。
口語用法
How is "That's" used in spoken English?What is the spoken vs formal difference for "That's"?
引述
在口語中，常用 "that's" 來快速引述或總結他人剛說過的話，表示認同或確認。 EN: A: "I think we should leave by 5." B: "That's exactly what I was thinking." 翻譯: A: "我覺得我們應該五點前出發。" B: "那正是我在想的。"
EN:A: "The meeting got cancelled." B: "Oh, that's great news!"
翻譯:A: "會議取消了。" B: "哦，那真是個好消息！"
語氣強調
在對話中，"that's" 常與形容詞或名詞連用，用來表達強烈的個人感受、評價或驚訝，使語氣更生動。 EN: "That's insane! How did you manage to finish so fast?" 翻譯: "那太誇張了！你怎麼有辦法這麼快做完？"
EN:"That's the problem right there. We don't have enough time."
翻譯:"那就是問題所在。我們時間不夠。"
停頓填充
在即時對話組織思緒時，"that's" 有時會作為一個短暫的停頓或填充詞，引出後續的解釋或結論。 EN: "The reason I'm late is... well, that's because my car wouldn't start." 翻譯: "我遲到的原因是... 嗯，那是因為我的車發不動。"
EN:"So, if we combine both ideas, that's how we get the final solution."
翻譯:"所以，如果我們把兩個想法結合起來，那就是我們得到最終解決方案的方式。"
請注意：以上用法在非正式對話中非常普遍，但在正式書寫（如學術論文、商業報告、官方文件）中，應避免使用縮寫形式 "that's"，並將 "that is" 完整寫出，且上述帶有強烈口語色彩的例句結構也應調整為更正式、完整的句式。
常見短語
What common collocations use "That's"?What fixed phrases with "That's" should I remember?
that's why
that's why + clause
這就是為什麼...；因此
that's it
that's it
就這樣；沒錯；完了
that's all
that's all
就這些；沒別的了
that's right
that's right
沒錯；對的
that's okay
that's okay
沒關係；可以；不用了（婉拒）
that's true
that's true
那倒是真的；說得對
that's what
that's what + clause
那就是...（的內容/原因）
that's enough
that's enough
夠了；可以停了
常見錯誤
What are common mistakes with "That's"?Which "That's" sentences look correct but are wrong?
×That's a good news.
✓That's good news.
在英文中，'news' 是不可數名詞，前面不能加 'a' 或 'an'。
×That's mean you are right.
✓That means you are right.
'That's' 是 'That is' 的縮寫，後面通常接名詞、形容詞或名詞片語。當後面接動詞（如 'mean'）時，應使用 'That' 作為主詞，動詞需配合第三人稱單數加 's'。
×That's a my book.
✓That's my book.
所有格代名詞（如 my, your, his）前面不能加冠詞 'a' 或 'the'。
×That's a interesting idea.
✓That's an interesting idea.
冠詞 'a' 用於子音開頭的單字前，'an' 用於母音開頭的單字前。'interesting' 的發音以母音 /ɪ/ 開頭，因此前面應使用 'an'。
×That's belong to me.
✓That belongs to me.
'That's' 是 'That is' 的縮寫，後面不能直接接原形動詞。若要表達「屬於」，應使用動詞 'belongs'（第三人稱單數）。
×I think that's a good.
✓I think that's good.
'Good' 在此作為形容詞，用來描述主詞 'that' 的狀態，前面不需要冠詞 'a'。冠詞 'a' 後面必須接可數名詞單數。
詞形變化
What are the word forms of "That's"?What are tense/participle forms of "That's"?