Tóm tắt

Quantifiers = từ đứng trước danh từ để chỉ số lượng nhiều hay ít.

Quantifier Dùng với Ví dụ
many countable plural many students, many problems
much uncountable much time, much evidence
few / a few countable plural few options / a few ideas
little / a little uncountable little money / a little help
some / any cả hai some water / any students
a lot of / lots of cả hai a lot of time / lots of people
several countable plural several reasons
plenty of cả hai plenty of time / plenty of books
a great deal of uncountable a great deal of evidence
a large number of countable plural a large number of people

Tại sao quan trọng

Lỗi dùng sai quantifier (much students, few information...) bị đánh giá là lỗi cơ bản trong IELTS. Nắm vững quantifiers giúp: - Diễn đạt số lượng chính xác trong Writing Task 1 (mô tả dữ liệu) - Lập luận thuyết phục trong Task 2 (most people, a significant proportion...) - Nói tự nhiên và đa dạng trong Speaking

Many vs Much

Many — đếm được, số nhiều

many + countable plural noun
  • Many students struggle with academic writing.
  • There are many factors contributing to unemployment.
  • How many people attended the event?

Much — không đếm được

much + uncountable noun
  • Much research has been conducted in this area.
  • There isn't much time left.
  • How much money was spent?

Lưu ý: "Much" thường dùng trong câu phủ định và câu hỏi. Trong câu khẳng định, ưu tiên "a lot of" hoặc "a great deal of": - ❌ Much research supports this view. (nghe cứng trong văn thông thường) - ✅ A great deal of research supports this view. (học thuật hơn) - ✅ Much of the research supports this view. (chấp nhận được trong academic writing)

Few vs Little — Âm tính (ít đến mức thiếu)

Few — countable, mang nghĩa âm tính

few + countable plural noun = "không đủ / quá ít"
  • Few governments have successfully implemented this policy. (Rất ít — ngụ ý đáng tiếc)
  • Few people are aware of this problem.
  • There are few solutions to this crisis.

Little — uncountable, mang nghĩa âm tính

little + uncountable noun = "không đủ / quá ít"
  • There is little evidence to support this claim. (Gần như không có bằng chứng)
  • Little progress has been made in recent years.
  • He showed little interest in the project.

A few vs A little — Dương tính (có một ít)

A few — countable, dương tính

a few + countable plural noun = "có một chút — đủ dùng"
  • I have a few suggestions for improving this. (có vài gợi ý)
  • Let me give you a few examples.
  • She needed a few days to recover.

A little — uncountable, dương tính

a little + uncountable noun = "có một ít — đủ dùng"
  • Could you give me a little more time? (xin thêm một chút thời gian)
  • There is a little hope remaining.
  • I have a little experience in this field.

Tóm tắt few vs little

Âm tính (quá ít, thiếu) Dương tính (có một ít, đủ)
Countable few (ít hơn mức cần) a few (có một số)
Uncountable little (ít hơn mức cần) a little (có một ít)

Ví dụ so sánh: - Few students passed. (Rất ít em đỗ — kết quả đáng lo ngại) - A few students passed. (Có một vài em đỗ — tốt hơn không có gì) - Little funding was available. (Gần như không có kinh phí) - A little funding was available. (Có một ít kinh phí)

Some vs Any

Some — khẳng định, đề nghị, mời mọc

  • Some countries have adopted this approach. (một số nước)
  • Would you like some water? (mời/đề nghị)
  • Some students find writing difficult.

Any — phủ định, câu hỏi, điều kiện

  • Are there any questions? (câu hỏi)
  • There aren't any exceptions. (phủ định)
  • If you have any concerns, let me know. (điều kiện)

Any trong câu khẳng định = "bất kỳ": - You can ask any question you like. - Any country can participate.

Quantifiers trang trọng — Dùng trong IELTS Writing

Informal Formal / Academic
a lot of people a large number of people
a lot of research a great deal of research
lots of evidence a significant amount of evidence
many countries the majority of countries
most the vast majority of
some a proportion of / a number of

Ví dụ viết lại:

  • ❌ A lot of studies show that exercise is beneficial.

  • ✅ A considerable number of studies demonstrate that exercise yields significant health benefits.

  • ❌ Many countries have this problem.

  • ✅ The majority of countries experience this issue to varying degrees.

Quantifiers quan trọng khác

Several — một số (nhiều hơn a few, ít hơn many)

Chỉ dùng với countable plural:

  • There are several reasons for this trend.
  • Several studies have reached similar conclusions.
  • The policy has several notable weaknesses.

Plenty of — đủ nhiều, thừa thãi

Dùng với cả countable và uncountable:

  • There is plenty of time before the deadline.
  • There are plenty of opportunities available.
  • She has plenty of experience in this field.

A number of — một số (tương đương "some/several")

Dùng với countable plural, động từ số nhiều:

  • A number of students have raised this concern. (students → động từ số nhiều)
  • A number of factors contribute to this problem.

Phân biệt "the number of" vs "a number of": - The number of students is increasing. (số lượng → số ít) - A number of students are struggling. (một số học sinh → số nhiều)

The majority of / A minority of

  • The majority of participants agreed with the proposal.
  • A minority of people remain opposed.

Lỗi thường gặp

Lỗi 1: Dùng "many" với uncountable

  • ❌ There is many evidence to support this.
  • ✅ There is much evidence / a great deal of evidence to support this.
  • ❌ Many information has been gathered.
  • ✅ Much information / A great deal of information has been gathered.

Lỗi 2: Dùng "much" với countable

  • ❌ There are much students in the class.
  • ✅ There are many students in the class.
  • ❌ We need much more workers.
  • ✅ We need many more workers.

Lỗi 3: Nhầm "few" và "a few"

  • ❌ The situation is positive — few solutions exist. (ngụ ý không đủ)
  • ✅ The situation is positive — a few solutions exist.
  • ❌ The outlook is bleak but a few alternatives remain. (cần nhấn mạnh tính âm tính)
  • ✅ The outlook is bleak but few alternatives remain.

Lỗi 4: "A number of" + singular verb

  • ❌ A number of students is struggling.
  • ✅ A number of students are struggling. (subject thực là "students")

Lỗi 5: "Several" với uncountable

  • ❌ There is several evidence...
  • ✅ There is some evidence... / There are several pieces of evidence...

Ứng dụng trong IELTS

Writing Task 1 — Mô tả dữ liệu:

  • "A significant number of respondents indicated a preference for online shopping."
  • "The vast majority of households in the survey reported owning at least one car."
  • "A small proportion of participants had little or no access to internet services."
  • "Several countries showed considerable improvements in literacy rates."
  • "Few nations managed to achieve the target by the deadline."

Writing Task 2 — Lập luận:

  • "A great deal of research suggests that early childhood education yields long-term benefits."
  • "Many people argue that technology isolates individuals; however, a significant number of studies suggest the opposite."
  • "Few would dispute that access to clean water is a fundamental human right."
  • "There are several compelling reasons why governments should invest more in public health."
  • "The majority of experts agree that immediate action is required."

Speaking Part 3 — Thảo luận:

  • "I think a lot of young people are genuinely concerned about the environment."
  • "There are quite a few barriers that prevent people from getting higher education."
  • "Most people I know use social media daily, but a few of my friends have deliberately avoided it."

Bài tập luyện

Chọn quantifier đúng

  1. There is (much/many) ___ pollution in the city.
  2. (Few/A few) ___ countries have succeeded in reducing poverty significantly.
  3. She only had (little/a little) ___ time to prepare.
  4. (Many/Much) ___ research has been done on this topic.
  5. There are (several/much) ___ solutions to consider.

Sửa lỗi

  1. There is many evidence that exercise improves mental health.
  2. A number of research have been conducted.
  3. Few solutions exist, so we are optimistic.
  4. Much students choose to study online these days.
  5. A number of funding is available for this project.

Đáp án

Quantifier đúng: 1. much | 2. Few | 3. a little | 4. Much / A great deal of | 5. several

Sửa lỗi: 1. There is much / a great deal of evidence... (evidence = uncountable) 2. A great deal of research has been conducted. (research = uncountable; "a number of" → countable plural) 3. A few solutions exist, so we are optimistic. (positive → "a few") 4. Many students choose... (students = countable plural) 5. A significant amount of funding is available. (funding = uncountable)

Tóm tắt nhanh

Countable plural Uncountable
Nhiều many / a large number of much / a great deal of / a large amount of
Đủ nhiều plenty of / several plenty of
Ít (âm tính) few little
Có một ít (dương tính) a few a little
Một số some / a number of some / a proportion of
Không có not any / no not any / no

Quy tắc vàng: - many / few / a few / several → chỉ dùng với countable plural - much / little / a little → chỉ dùng với uncountable - few (âm tính: không đủ) ≠ a few (dương tính: có một số) - little (âm tính) ≠ a little (dương tính) - Trong IELTS Writing: thay "a lot of" bằng "a large number of" (countable) hoặc "a great deal of" (uncountable)