
Ôn tập ngữ pháp và từ vựng tiếng Anh
Welcome to this comprehensive course designed to reinforce key English grammar points and useful vocabulary. Each section expands on a quiz question, offering clear explanations, examples,…

Cách diễn đạt nào đúng khi nói một người đã sống ở nơi nào đó từ một mốc quá khứ đến hiện tại?
Động từ chỉ trạng thái như “believe” thường được dùng ở dạng nào khi diễn tả ý kiến hiện tại?
Sau động từ nối như “look” hoặc “taste”, dạng từ nào thường dùng để miêu tả chủ ngữ?
Trong mệnh đề quan hệ bổ nghĩa cho người, đại từ quan hệ nào thường làm chủ ngữ?
Trong câu “The body works properly”, từ “properly” có chức năng gì?
Khi nội quy cấm làm một việc, động từ khuyết thiếu nào diễn đạt lệnh cấm?
Cụm động từ nào có nghĩa là giảm lượng tiêu thụ một thứ gì đó?
Từ nối nào diễn tả sự tương phản giữa hai ý?
Tính từ nào phù hợp để miêu tả một đại gia đình có nhiều thế hệ sống cùng nhau?
Review of English Grammar and Vocabulary
Welcome to this comprehensive course designed to reinforce key English grammar points and useful vocabulary. Each section expands on a quiz question, offering clear explanations, examples, and practical tips that will help you master the concepts for both everyday communication and academic success.
1. Simple Past Tense – Describing Completed Actions
The simple past tense is used when an action happened at a specific moment in the past and is now finished. It is the most common way to talk about past events that do not have a direct link to the present.
- Structure: subject + verb‑ed (or irregular past form)
- Typical time markers: yesterday, last year, in 1999, two weeks ago
Example: I visited the museum yesterday. The visit is complete; there is no implication that it continues today.
Contrast this with the present perfect, which connects past actions to the present (e.g., I have visited the museum – the experience is relevant now).
2. Present Perfect with Since – Actions Starting in the Past and Continuing
When you want to express that something began at a specific point in the past and is still true, you use the present perfect tense together with the preposition since.
- Structure: subject + have/has + past participle + since + specific time
- Common time expressions: since 2010, since Monday, since I was a child
Example: She has lived in London since 2015. The verb has lived shows the action started in 2015 and continues up to now.
Remember:
- Use for when you talk about a duration (e.g., for five years).
- Use since only with a specific starting point.
3. Stative Verbs and the Simple Present – Expressing Current Opinions
Verbs that describe states, feelings, or mental processes—known as stative verbs—are normally used in the simple present when referring to present opinions or beliefs.
- Typical stative verbs: believe, think, know, understand, love, hate, prefer
- They are rarely used in the continuous form because the state is not a temporary action.
Correct usage: I believe that learning a language opens doors.
Incorrect: I am believing... (sounds unnatural unless you are describing a temporary, ongoing process of forming a belief).
4. Linking Verbs Followed by Adjectives – Describing the Subject
Linking verbs such as look, feel, sound, taste, seem, become are followed by adjectives that describe the subject, not by nouns or infinitives.
- Structure: subject + linking verb + adjective
Examples:
- The soup tastes delicious. – delicious describes the soup.
- She looks tired after the flight. – tired describes her.
Using a noun after a linking verb would be incorrect (e.g., *The soup tastes a flavor*). The adjective provides the essential descriptive information.
5. Relative Pronouns for People – Using Who as Subject
When a relative clause modifies a noun referring to a person, the pronoun who typically serves as the subject of that clause.
- Structure: person + who + verb …
Example: The teacher who inspired me the most retired last year.
Other relative pronouns:
- whose – indicates possession (e.g., the student whose book was lost).
- which – used for animals or things.
- where – refers to places.
6. Adverbs Modifying Verbs – The Role of Properly
Adverbs modify verbs, adjectives, or other adverbs, providing information about manner, time, frequency, or degree. In the sentence The body works properly, the adverb properly modifies the verb works, describing *how* the body functions.
- Adverb placement: usually after the verb or at the end of the clause.
- Common adverb types: manner (quickly, slowly), frequency (often, never), degree (very, quite).
Remember that adverbs do **not** modify nouns directly; that role belongs to adjectives.
7. Modal Verbs for Prohibition – Using Mustn’t
When a rule or regulation explicitly forbids an action, the modal verb mustn’t is the appropriate choice.
- Structure: subject + must not (mustn’t) + base verb
Example: You mustn’t smoke inside the library. This conveys a strict prohibition.
Other modal verbs related to obligation:
- must – expresses necessity or strong obligation.
- should – gives advice or recommendation.
- don’t have to – indicates lack of necessity, not prohibition.
8. Phrasal Verbs for Reducing Consumption – Cut Down On
The phrasal verb cut down on means to reduce the amount or frequency of something, especially something that is consumed or used.
- Structure: cut down on + noun
Examples:
- She decided to cut down on sugar to improve her health.
- We need to cut down on waste at the office.
Other related phrasal verbs:
- cut out – eliminate completely (e.g., cut out smoking).
- cut off – stop supply or access (e.g., cut off electricity).
Putting It All Together – Practice Activities
Use the following exercises to apply what you have learned. Write your answers in a notebook and compare them with the provided solutions.
Exercise 1: Choose the Correct Tense
- _____ (travel) to Japan last summer.
- She _____ (live) in New York since 2018.
- They _____ (believe) that the project will succeed.
Answers:
- traveled – simple past
- has lived – present perfect with since
- believe – simple present (stative verb)
Exercise 2: Fill in the Blank with an Adjective After a Linking Verb
- The coffee tastes __________.
- He looks __________ after the marathon.
Possible answers: delicious, exhausted
Exercise 3: Rewrite the Sentence Using a Relative Pronoun
Original: The scientist wrote a paper. The scientist won an award.
Rewrite with who:
The scientist who wrote a paper won an award.
Exercise 4: Identify the Modal Verb for Prohibition
Sentence: _____ (you) bring food into the museum.
Answer: Mustn’t
Exercise 5: Use the Correct Phrasal Verb
Complete the sentence: We need to __________ our electricity usage to lower the bill.
Answer: cut down on
Key Takeaways
- The simple past describes finished actions at a specific past time.
- The present perfect with since links a past start point to the present.
- Stative verbs such as believe are used in the simple present for current opinions.
- Linking verbs are followed by adjectives, not nouns or infinitives.
- In relative clauses about people, who functions as the subject.
- Adverbs like properly modify verbs, indicating manner.
- Use mustn’t to express a rule that forbids an action.
- The phrasal verb cut down on means to reduce consumption.
Further Resources
To deepen your understanding, explore these reputable sources:
- Oxford Learner's Dictionaries – Grammar Guides
- Cambridge English – Practice Tests
- EnglishPage – Phrasal Verb Exercises
Consistent review and active usage are the keys to mastering English grammar and vocabulary. Keep practicing, and you will notice steady improvement in both written and spoken communication.
