Bài học cùng chủ đề
Luyện tập SVIP
Have a good day to you!
Lesson objectives
We're getting to know how to use should and shouldn't to express opinions and advice, and must and have to to express obligation.
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DO YOU KNOW ... ? |
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We use should and shouldn't to give our opinions about something or advice to someone. |
Chúng ta sử dụng should và shouldn't để đưa ra ý kiến, quan điểm về cái gì hoặc lời khuyên cho ai đó. |
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Example: I think parents should spend more time talking with their teenage children. |
Ví dụ: Tớ nghĩ phụ huynh nên dành nhiều thời gian hơn để trò chuyện với con mình ở độ tuổi vị thành niên. |
| Ought to and ought not to mean the same as should and shouldn't. | Ought to và ought not to tương đương với should và shouldn't. |
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Example: I think she ought to share the housework with her mother. |
Ví dụ: Tôi nghĩ bạn ấy nên giúp đỡ mẹ mình trong việc nhà. |
| Must has a stronger meaning than should and ought to. | Must có tính bắt buộc mạnh hơn should và ought to. |
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Must and have to are used to express obligation or the need to do something. |
Must và have to được dùng để diễn tả tính bắt buộc hoặc cần thiết để làm việc gì đó. |
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Example: - You must show respect for the elderly. - I have to clean the floor and cook dinner every day. |
Ví dụ: - Bạn phải tôn trọng người lớn tuổi. - Tôi phải lau sàn và nấu bữa tối mỗi ngày. |
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Must expresses obligation imposed by the speaker while have to expresses external obligation. |
Must diễn tả tính bắt buộc mang tính chủ quan của người nói, còn have to diễn tả tính bắt buộc mang tính khách quan. |
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Examples: - You must practise your English every day. (a teacher telling a student) - I have to practise my English every day. (a student telling his/ her parents about school |
Ví dụ: - Em phải trau dồi tiếng Anh của mình hàng ngày. (Giáo viên cảm thấy điều đó là cần thiết và nói với học sinh như vậy.) - Con phải trau dồi tiếng Anh của mình hàng ngày. (Một học sinh nói với bố mẹ về yêu cầu của trường học trong việc học tiếng Anh.) |
| Notes: | Chú ý: |
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Ought to is not as common as should and is a little more formal in questions and negatives. We use I don't think we should / ought to rather than I think we shouldn't / oughtn't to. |
Ought to ít phổ biến hơn should và trang trọng hơn một chút so với should ở trong thể nghi vấn và phủ định. Chúng ta dùng I don't think we should / ought to thay vì I think we shouldn't / oughtn't to. |
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Example: I don't think you should invite your friends to stay |
Ví dụ: Tôi không nghĩ bạn nên rủ bạn ngủ qua đêm. |
| In their negative form, mustn't and don't have to have different meanings. We use mustn't when an action is forbidden or prohibited. | Ở thể phủ định, mustn't và don't have to có nghĩa khác nhau. Chúng ta dùng mustn't khi hành động bị cấm. |
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Example: You mustn't cheat in the exams. |
Ví dụ: Bạn không được phép gian lận trong kì thi. |
| We use don't have to when the action is not necessary. | Chúng ta dùng don't have to khi hành động không cần thiết. |
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Example: Students don't have to go to school on Sundays. |
Ví dụ: Học sinh không phải đến trường vào chủ nhật. |
Ready, steady, go!
Choose the correct words to complete the sentences.
1. I think you should / shouldn't talk to your parents about it. I'm sure they will give you the best advice.
2. I don't think you ought to / ought not to do your brother‘s homework. He must do it himself.
3. You must / mustn't finish your homework before you go out with your friends.
4. At our school, we have to / don't have to wear uniforms. It is a rule.
5. You mustn't / don't have to take photographs here. This is a restricted area.
Complete a mother's advice to her 16-year-old daughter, using should / shouldn't and ought / oughtn't.
1. Your grandparents live far from us, so you talk to them on the phone regularly.
2. You are going to a concert, so you to wear your old jeans.
3. You stare at the computer screen for too long. It is really bad for your eyesight.
4. You to talk to your grandparents more often so that you can understand them better.
5. You become more responsible by sharing the housework with other people in our family.
Choose the correct answer.
I can watch TV and play computer games on Sunday because I ____ go to school that day.
Choose the correct answer.
I ____ stay overnight at my friends'house. My parents are very strict about this.
Choose the correct answer.
I ____ go home now to finish my homework.
Choose the correct answer.
She ____ stay at home to look after her children because there is no one to help her.
Rewrite each sentence without changing its meaning, using the word in brackets. Use no more than three words including the given word.
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Example: It would be a good idea for you to talk to your parents about your problem. (ought) ⇒ You ought to talk to your parents about your problem. |
1. You are not allowed to use your mobile phone in the examination room. (must)
⇒ You your mobile phone in the examination room.
2. It is not necessary for me to type my essay. (have to)
⇒ I type my essay.
3. I'd advise you to tell the truth to your family. (should)
⇒ You the truth to your family.
4. It is necessary for young people to plan their future career carefully. (must)
⇒ Young people their future career carefully.
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