Ngữ pháp Unit 3 lớp 8 Teenagers Global Success

Ngữ pháp tiếng Anh lớp 8 Global Success unit 3 Teenagers bao gồm định nghĩa cấu trúc câu đơn tiếng Anh & câu ghép tiếng Anh giúp các em ôn tập kiến thức ngữ pháp tiếng Anh trọng tâm unit 3 SGK tiếng Anh lớp 8 Kết nối tri thức.

I. Câu đơn tiếng Anh - Simple sentence

- Là câu chỉ có một mệnh đề độc lập, nghĩa là có 1 chủ ngữ và 1 động từ: S + V

Ex: Trang plays the piano.

- Câu đơn không phải là câu ngắn mà nó chỉ thể hiện một ý chính.

Ex: There are my books. Đây là những quyển sách của tôi.

- Một câu đơn có thể có nhiều hơn một chủ ngữ. Có thể chủ ngữ là 2 danh từ nối với nhau bằng 'and'. 

Ex: Nam and Khang are playing football.

- Một câu đơn có thể có nhiều động từ. Nhiều động từ nối với nhau bằng 'and' 

Ex: Trang ate peanuts and drank coffee.

II. Câu ghép tiếng Anh - Compound sentences

- Là câu chứa từ hai mệnh đề độc lập trở lên, diễn tả các ý chính có tầm quan trọng ngang nhau.

- Chúng ta sử dụng các cách sau để nối hai mệnh đề:

- sử dụng liên từ kết hợp (Coordinating conjunction)

Cấu trúc: S + V1, coordinating conjunctions S2 + V2

- Chúng ta có các liên từ kết hợp thông dụng sau:

F = for A = and N = nor B = but O = or Y = yet S = so

Từ “FANBOYS” là một cách viết để nhớ các "conjunctions" phổ biến nhất một cách dễ dàng, đây là các liên từ khác nhau để tạo nên câu ghép.

Liên từ	Ý nghĩa	Ví dụ
FOR	Diễn đạt lý do hoặc mục đích	I don't like him, for he was a bully in the past.
AND	Thêm (bổ sung) một thứ vào một thứ khác	She likes tea and coffee.
NOR	Bổ sung một ý phủ định vào ý phủ định đã được nêu trước đó	No, I won't be there on Thursday nor Friday.
BUT	Diễn tả sự đối lập, ngược nghĩa	Mickey has a beautiful but lazy dog.
OR	Đưa ra một lựa chọn khác	Would you like tea or coffee?
YET	Dùng đế giới thiệu một ý đối lập với ý trước đó (tương tự but)	Truong plays soccer well, yet his favorite sport is basketball.
SO	Thường dùng để chỉ kết quả	I prepared well in advance so I won this game.

Lưu ý:

* for đứng giữa câu, trước for là dấu phấy (,), sau for là một mệnh đề.

* Thực tế, nor ít xuất hiện với chức năng là liên từ mà nor thường được sử dụng để kết hợp với neither mang nghĩa neither... nor (không... cũng không).

Ex. You can read Harry Potter or you can watch it.

- Sử dụng trạng từ liên kết (conjunctive adverb)

Cấu trúc: S + V1; conjunctive adverbs S2 + V2

Conjunctive adverb gồm: however (tuy nhiên), therefore (vì vậy), otherwise (nếu không thì)

Ex:  Lucy tried hard; however, she couldn’t pass the entrance exam.

- sử dụng dấu chấm phẩy (;)

Ex: I met David yesterday; he’s just come out of hospital.

Lưu ý: Cách sử dụng dấu phẩy và dấu chấm phẩy trong câu ghép

- sử dụng dấu phẩy (,) và một liên từ đẳng lập (and, but, so, yet)

Ex: The bus was very crowded, so I had to stand all the way.

He loves her, but she doesn’t love him.

- sử dụng dấu chấm phẩy (;) và một trạng từ nối tiếp - từ chuyển tiếp

(however, therefore, nevertheless, moreover, otherwise,...) và theo sau đó là dấu phẩy (,).

Ex: The bus was very crowded; therefore, I had to stand all the way.

III. Bài tập Ngữ pháp tiếng Anh lớp 8 unit 3 Global Success có đáp án

Identify each sentence as either simple (S) or compound (C).

1. Kelvin and Frank took the bus. _____

2. He likes coffee, and she likes tea. _____

3. My sister and I want to study in the morning. _____

4. Will Brian go, or will Jimmy go? _____

5. John rode his bike and skated this Sunday. _____

6. Tommy likes Jodie; however, Jodie doesn’t like Tommy. _____

7. We waited for the bus, but it was late. _____

8. Many students like to use smartphone after school. _____

9. Although the sun is shining, it isn’t very warm. _____

10. Salad is cheap; moreover, it’s very healthy. _____

Fill in the blanks with and, so, but, or, for.

1. It was raining, ____________ we stayed at home ____________ watched a film.

2. I want to buy a new pair of shoes, ____________ I don’t have enough money.

3. She had a terrible headache last night, ____________ she drank a lot of wine.

4. I like eating pancakes, ____________ I never eat cream cakes; I don’t like them.

5. Would you like chocolate ____________ biscuits with your coffee?

6. My job is very challenging, ____________ it doesn’t pay very well.

7. We can go by bus, ____________ we can walk to the stadium.

8. My classmate studies very hard, ____________ she always gets good marks.

9. You ought to hurry up, ____________ you’ll be late for work.

10. I do more exercise ____________ drink much water to lose weight.

11. I don’t have time to chat to you, ____________ I have a lot of exercises to do this evening.

12. Eat more food with vitamins, ____________ you will feel healthier.

13. My father smokes a lot, ____________ he has a problem with his lungs.

14. You can choose to learn Japanese ____________ Korean as your second foreign language.

15. There is a new cartoon on TV, ____________ I have to do my homework.

Use conjunctions provided to connect the sentences.

1. Teens need to have good health. They should do some sport(s). (SO)

→ _____________________________________________________

2. My friend likes showing off her new things.She often posts pictures on social media.

(THEREFORE )

→ _____________________________________________________

3. Some teenagers never join in any forums for help. They prefer talking to their parents about their problems. (BECAUSE)

→ _____________________________________________________

4. Teenagers should develop social skills. They may not be able to communicate with peers and other people. (OTHERWISE)

→ _____________________________________________________

5. In some forums teens can get advice from peers. My friends often use those forums to share their problems. (THEREFORE)

→ _____________________________________________________

ĐÁP ÁN

Identify each sentence as either simple (S) or compound (C).

1. Kelvin and Frank took the bus. __S___

2. He likes coffee, and she likes tea. __C___

3. My sister and I want to study in the morning. __S___

4. Will Brian go, or will Jimmy go? __C___

5. John rode his bike and skated this Sunday. ___S__

6. Tommy likes Jodie; however, Jodie doesn’t like Tommy. ___C__

7. We waited for the bus, but it was late. __C___

8. Many students like to use smartphone after school. __S___

9. Although the sun is shining, it isn’t very warm. __C___

10. Salad is cheap; moreover, it’s very healthy. __C___

Fill in the blanks with and, so, but, or, for.

1. It was raining, _______so_____ we stayed at home _______and _____ watched a film.

2. I want to buy a new pair of shoes, _____but_______ I don’t have enough money.

3. She had a terrible headache last night, _____ for _______ she drank a lot of wine.

4. I like eating pancakes, ______but______ I never eat cream cakes; I don’t like them.

5. Would you like chocolate ______or______ biscuits with your coffee?

6. My job is very challenging, _____but_______ it doesn’t pay very well.

7. We can go by bus, _______or_____ we can walk to the stadium.

8. My classmate studies very hard, _____so_______ she always gets good marks.

9. You ought to hurry up, ____or________ you’ll be late for work.

10. I do more exercise ____and ________ drink much water to lose weight.

11. I don’t have time to chat to you, _____ for _______ I have a lot of exercises to do this evening.

12. Eat more food with vitamins, _____and _______ you will feel healthier.

13. My father smokes a lot, _____so_______ he has a problem with his lungs.

14. You can choose to learn Japanese ____or________ Korean as your second foreign language.

15. There is a new cartoon on TV, _____but_______ I have to do my homework.

Use conjunctions provided to connect the sentences.

1. Teens need to have good health, so they should do some sport(s).

2. My friend likes showing off her new things; therefore, she often posts pictures on social media.

3. Some teenagers never join in any forums for help, because they prefer talking to their parents about their problems.

4. Teenagers should develop social skills; otherwise, they may not be able to communicate with peers and other people.

5. In some forums teens can get advice from peers; therefore, my friends often use those forums to share their problems.

Trên đây là Ngữ pháp tiếng Anh lớp 8 Global Success unit 3 Teenagers.