Unit 9 – Grammar: Yes/No Questions

(Câu hỏi Yes/No – Câu hỏi đóng)

1. Khái niệm

👉 Yes/No questions là loại câu hỏi mà câu trả lời chỉ cần Yes (Có) hoặc No (Không).

2. Cấu trúc chung

a. Với “to be” (am, is, are, was, were):

• Be + S + … ?

Ví dụ:

• Is Diwali an important festival in India?
  → Yes, it is. / No, it isn’t.

• Was the festival crowded yesterday?
  → Yes, it was. / No, it wasn’t.

b. Với Động từ thường (ordinary verbs):

👉 Dùng do/does/did đứng đầu câu.

• Do/Does/Did + S + V(infinitive) + … ?

Ví dụ:

• Do you celebrate Tet in Vietnam?
  → Yes, we do. / No, we don’t.

• Does she like Mid-Autumn Festival?
  → Yes, she does. / No, she doesn’t.

• Did they join the carnival last year?
  → Yes, they did. / No, they didn’t.

c. Với Modal verbs (can, will, should…):

• Modal verb + S + V(infinitive) + … ?

Ví dụ:

• Will you go to the Lantern Festival this weekend?
  → Yes, I will. / No, I won’t.

• Can we see fireworks at the festival?
  → Yes, we can. / No, we can’t.

3. Ví dụ liên quan đến Festivals Around the World

• Is Halloween popular in the USA?
  → Yes, it is.

• Do people in Thailand celebrate Songkran Festival?
  → Yes, they do.

• Did you watch the Rio Carnival last year?
  → No, I didn’t.

• Will you join the school festival next month?
  → Yes, I will.

✅ Tóm lại:

• Be + S + … ? (Yes, S + be / No, S + be not)

• Do/Does/Did + S + V… ? (Yes, S + do/does/did / No, S + don’t/doesn’t/didn’t)

• Modal + S + V… ? (Yes, S + modal / No, S + modal + not)