1. Concept (Khái niệm)
Sentence Connectors (từ nối câu / liên từ nối đoạn) là những từ hoặc cụm từ dùng để liên kết hai câu hoặc hai ý độc lập trong văn viết học thuật, giúp người đọc thấy rõ mối quan hệ logic giữa các phần của bài viết.
→ Chúng thường đứng đầu câu hoặc sau dấu chấm phẩy (;) và được theo sau bởi dấu phẩy (,).
Ví dụ khái niệm:
“The experiment was expensive; nonetheless, the results were valuable.”
2. Function Groups (Phân loại theo chức năng)
| Chức năng | Sentence Connectors thường gặp |
| Addition (Bổ sung) | furthermore, moreover, in addition, besides, what is more |
| Contrast (Tương phản) | however, nevertheless, nonetheless, on the contrary, on the other hand, whereas, while |
| Cause / Reason (Nguyên nhân) | because, since, as, due to, owing to, for this reason |
| Result / Effect (Kết quả) | therefore, thus, hence, consequently, as a result |
| Comparison (So sánh tương đồng) | similarly, likewise, in the same way |
| Concession (Nhượng bộ) | although, even though, though, despite, in spite of |
| Time / Sequence (Thời gian – trình tự) | meanwhile, subsequently, eventually, afterwards |
| Summary / Conclusion (Tổng kết – kết luận) | in conclusion, to sum up, overall, in summary |
3. Contrast Connectors (Tương phản)
Dùng để thể hiện hai ý trái ngược hoặc mâu thuẫn nhau.
- however – “It was raining; however, they went hiking.”
- nevertheless / nonetheless – “The task was complex; nonetheless, he completed it on time.”
- whereas / while – dùng để đối chiếu hai vế trong cùng câu:
“She enjoys parties, whereas he prefers quiet evenings.”
- on the other hand – dùng để trình bày khía cạnh đối lập:
“Online learning is convenient; on the other hand, it reduces social interaction.”
- in contrast – nhấn mạnh sự khác biệt rõ ràng:
“Urban areas are crowded; in contrast, rural regions are peaceful.”
4. Result & Effect Connectors (Nguyên nhân – Kết quả)
Biểu thị kết quả hoặc hậu quả của một hành động / hiện tượng.
- therefore – kết luận logic: “The model failed to predict; therefore, it was revised.”
- thus – trang trọng, dùng nhiều trong học thuật: “It was dark; thus, we used flashlights.”
- hence – đồng nghĩa với “therefore” nhưng trang trọng hơn: “She studied hard; hence, her success.”
- consequently – nhấn mạnh hậu quả trực tiếp: “The demand increased; consequently, prices rose.”
- as a result / for this reason – “The company expanded rapidly; as a result, it needed more staff.”
5. Addition Connectors (Bổ sung ý)
Giúp mở rộng, thêm thông tin hoặc củng cố ý trước.
- furthermore – “The solution is simple; furthermore, it is effective.”
- moreover – nhấn mạnh thông tin thêm có giá trị tương đương: “The proposal is realistic; moreover, it is affordable.”
- in addition – “He works full-time. In addition, he studies at night.”
- besides / what is more – thêm vào điều đã nêu, thường trong văn phong ít trang trọng hơn.
6. Comparison Connectors (So sánh tương đồng)
- similarly – “The first experiment failed; similarly, the second produced no result.”
- likewise – “Her first book was a success; likewise, the second became a bestseller.”
- in the same way – “Children learn languages easily; in the same way, they pick up social habits.”
7. Concession & Contrastive Relation (Nhượng bộ / mâu thuẫn nhẹ)
- although / even though – “Although it was late, he kept working.”
- despite / in spite of + N/V-ing – “Despite the noise, I managed to sleep.”
- still / yet – “The project was risky; still, investors supported it.”
8. Time / Sequence Connectors (Trình tự – thời gian)
- firstly / secondly / finally – “Firstly, we analyzed data. Secondly, we tested the model.”
- subsequently / afterwards – “The report was written; subsequently, it was reviewed.”
- meanwhile – “He was studying; meanwhile, his friends were playing.”
- eventually – “After many attempts, they eventually succeeded.”
9. Summary / Conclusion Connectors (Tổng kết – kết luận)
- in conclusion / to conclude – “In conclusion, teamwork enhances productivity.”
- overall / in summary – “Overall, the benefits outweigh the drawbacks.”
- to sum up / all in all – ít trang trọng hơn nhưng tự nhiên: “To sum up, education remains vital.”
10. Common Academic Connectors (Tổng hợp nhóm nâng cao)
| Loại | Các từ nối nâng cao | Ví dụ khái niệm |
| Contrast |
nonetheless, nevertheless, whereas, while, on the contrary |
The weather was bad; nonetheless, we continued. |
| Result |
hence, thus, therefore, consequently |
The company expanded; hence, profits grew. |
| Addition |
moreover, furthermore, in addition |
The results were consistent; moreover, they confirmed the theory. |
| Comparison |
similarly, likewise, correspondingly |
Sales increased in Asia; similarly, growth was seen in Europe. |
| Concession |
although, even though, despite |
Although it was expensive, it sold well. |
11. Punctuation Rule (Dấu câu khi dùng connectors)
- Nếu nối hai mệnh đề độc lập → dùng dấu chấm phẩy (;) + connector + dấu phẩy (,)
Ví dụ: “The data were inaccurate; therefore, the study was repeated.”
- Nếu bắt đầu câu mới → đặt connector ở đầu câu, theo sau bằng dấu phẩy (,).
Ví dụ: “However, more research is needed.”
- Nếu dùng trong cùng câu (trước mệnh đề phụ) → không cần dấu phẩy ở trước.
Ví dụ: “We continued the test although it was raining.”
12. Common Mistakes (Các lỗi thường gặp)
- ❌ Dùng hai từ nối cùng lúc: “Although it rained, but we stayed.” → ✅ “Although it rained, we stayed.”
- ❌ Bỏ dấu phẩy sau connector: “However we continued.” → ✅ “However, we continued.”
- ❌ Dùng sai loại connector theo ý nghĩa logic: “It was cold; therefore, I wore a T-shirt.” ❌
- ❌ Lặp từ nối: “Therefore... therefore...” trong cùng đoạn.
13. Quick Memory Tips (Mẹo ghi nhớ nhanh)
- 🧠 Contrast → however / nevertheless / nonetheless / whereas
- 🧠 Result → therefore / thus / hence / consequently
- 🧠 Addition → moreover / furthermore / in addition
- 🧠 Comparison → similarly / likewise
- 🧠 Conclusion → in conclusion / overall / to sum up
- 💡 Mẹo nhớ:
- “However” = contrast (mặc dù vậy)
- “Hence” = result (do đó)
- “Whereas” = contrast (trong khi đó)
- “Nonetheless” = vẫn vậy dù trái ngược
14. Academic Writing Use (Ứng dụng học thuật)
- In essays:
“The first solution was costly; nonetheless, it proved effective.”
- In reports:
“The hypothesis was incorrect; hence, further experiments were conducted.”
- In research papers:
“Whereas previous studies focused on Europe, this one examines Asia.”
15. Summary (Tổng kết ghi nhớ)
| Nhóm chức năng | Sentence Connectors chính | Ví dụ khái niệm |
| Contrast | however, nonetheless, whereas, on the other hand | The plan failed; however, the idea was good. |
| Result | therefore, thus, hence, consequently | It rained heavily; thus, the match was cancelled. |
| Addition | furthermore, moreover, in addition | The course is useful; furthermore, it is affordable. |
| Comparison | similarly, likewise | The first study was flawed; likewise, the second lacked control. |
| Conclusion | in conclusion, overall | In conclusion, communication is key to success. |
Tóm lại:
✅ Sentence connectors giúp thể hiện mối quan hệ logic giữa các câu.
✅ Cần chọn đúng loại connector cho chức năng mong muốn (contrast, result, addition…).
✅ Dùng đúng dấu câu để đảm bảo tính học thuật.
➡️ Mastering connectors like “nonetheless”, “hence”, and “whereas” makes writing cohesive, precise, and academic at the C1–C2 level.