3D. Grammar

2. Read and listen to the dialogue and circle the correct verbs.

(Đọc và nghe đoạn hội thoại và khoanh tròn vào động từ đúng.)

Host: This question is for £125,000. Jill, in the sitcom How I Met your Mother, what is Ted Mosby's job? Is it A, lawyer, B, designer, C, architect. or D, reporter?

Jill: Um ... I'd like to ask the audience, please.

Host: OK. Audience, you (1) must / mustn't answer A, B, C or D on your keypads ... now! ... OK, 30% think it's B and 50% think it's C. But you (2) mustn't / needn't take their advice.

Jill: Mmm, I think I'll phone my friend Danny;

Host: OK, let's ring Danny .... Hello, Danny. Jill has a question worth £125,000. You (3) must / needn't answer within thirty seconds. OK?

Jill: Hi, Danny. In the sitcom How I Met your Mother, what is Ted Mosby's job? ls it A, lawyer, B, designer,

C, architect. or D, reporter?

Danny: Um, I think it's B ... or maybe C ... No, it's D...

Host: Sorry, you're out of time. But you (4) don't have to / must answer the question. You can walk away with

£64,000.

Jill: I'm going to answer C

Host: Final answer?

Jill: No. Yes. No

Host: You (5) don't have to/ mustn't change your mind!

Jill: The answer is B. Final answer.

Host: Oh, Jill, the answer is C, architect You've just lost £32,000.

3. Read the Learn this! box and complete the rules. Use must, mustn't, needn't and don't have to. Use your answers to exercise 2 to help you.

(Đọc hộp Learn this! và hoàn thành các quy tắc. Dùng must, mustn't, needn't and don't have to. Sử dụng các câu trả lời trong bài 2 để giúp bạn.)

LEARN THIS! must, mustn't and needn't/ don't have to

a. We use (1) _____ to say that something is necessary or very important to do.

b. We use (2) _____ and (3) _____ to say that something is not necessary.

c. We use (4) _____ to say that something is prohibited (a negative order)

Note: We can also use passive forms after modal verbs.

Helmet must be worn at all times.

4. What are the rules for using mobiles at your school? Write sentences with must, mustn't and needn't and the phrases below. If you can, add ideas of your own.

(Những luật lệ cho việc sử dụng điện thoại ở trường của bạn là gì? Viết các câu với must, mustn’t và needn’t với các cụm từ bên dưới. Nếu có thể, hãy thêm vào ý tưởng riêng của bạn.)

Using mobiles

bring our mobiles to school

leave them in our bags

put them on our desk during lessons

keep them on silent all day

send texts during lessons

5. Read the Look out! box. Then, using the words in brackets, rewrite the sentences so that they have the same meaning.

LOOK OUT!

a. must and have to are very similar. However, must often expresses the feelings of the speaker. (must và have to rất giống nhau. Tuy nhiên, must thường thể hiện cảm xúc của người nói.)

You must do more exercise. (That's my strong opinion.) (Bạn phải làm nhiều bài tập hơn nữa.) (Đó là một quan điểm rất mạnh.)

have to often expresses an external obligation. (have to thường chỉ sự bắt buộc từ bên ngoài.)

You have to wear a helmet. (It's the law.) (Bạn phải đội mũ bảo hiểm.) (Đây là luật.)

b. mustn't and don't have to do NOT have the same meaning. don't have to = needn't, but mustn't means 'it is prohibited’.  (mustn’t và don’t have to không cùng nghĩa. don’t have to = needn’t, nhưng mustn’t nghĩa là “nó bị cấm”.)

1 It isn't necessary for you to help me. (needn't)

2 It's compulsory for us to wear school uniform. (have to)

3 You aren't allowed to talk in the exam. (mustn't)

4. It's important that you listen to me. (must)

5. You needn't write the answer. (have to)