The formation and sentence-making of English imperative sentences. Please write it in detail. The homework is urgent.

Imperative sentences express requests, orders, suggestions and so on. Predicate verbs always use the original form. Sentences generally have no subject, and there is an exclamation point or a period at the end of the sentence, falling tone.

1 imperative sentence with second person subject

Be careful! Watch out!

Don't make such noise. Don't be so noisy.

1. Positive imperative sentence

A. sentence pattern: verb prototype ~. (omit the theme)

Stand up. Stand up.

Be quiet,please. Be quiet,please.

B. Sometimes, do can be added before verbs in order to strengthen the mood.

Please sit down.

Be sure to sit down.

Be sure to study hard.

You must study hard.

compare

Imperative and declarative sentences:

You sit down.

You sit down.

Imperative sentence:

Sit down. sit down

(omit your topic)

C. When expressing imperative sentences in a polite tone, please can be added at the beginning or end of the sentence, but if please is added at the end of the sentence, a comma must be added before please.

This way, please

This way, please.

D. If there are occupations in imperative sentences, they must be separated by commas and placed at the beginning or end of the sentence.

Li Ming, come here.

Li Ming, come here.

Come here, Li Ming.

Come here, Li Ming.

2. Negative imperative sentences

Sentence pattern: Don'' t+ verb prototype ~

Do not swim in the river.

Do not swim in the river.

Don't be late.

Please don't make any noise.

Please don't make noise.

pay attention to

When indicating prohibition, especially slogans, you can also use "No+ gerund".

No smoking.

No smoking.

No parking.

No parking.

Sentence pattern conversion

Rewrite imperative sentences and declarative sentences

1. imperative sentence = you must ... (declarative sentence)

Come here. Come here.

You have to come here.

You must come.

Don't do that again.

You can't do that again.

2. please+imperative sentence = do you want to (please) ~? (declarative sentence)

Please help me. Please help me.

Will you help me?

Will you help me?

Please come here on time. Please be here on time.

Would you please come here on time?

Would you please arrive on time?

Imperative sentences with first and third person subjects

Let's say goodbye here.

Let's say goodbye here.

Don't let him do that again.

Don't let him do that again.

1. Positive imperative sentence

Sentence pattern: let+ first person (me, us) ~.

Let+ third person pronoun (objective: he, she, it, them) or noun ~.

Let's go at once.

Let's start at once.

Let me try that one more time.

Let me try that one more time.

Let Tom go there by himself.

Let Tom go there by himself.

pay attention to

Let's include each other and let's not include each other. It is most obvious when using interrogative sentences.

Let's go, shall we?

Let's go, shall we?

Let's go, shall we?

Let's go, shall we?

(Ask for the other party's opinion)

2. Negative imperative sentences

Sentence pattern: let's (us, me)+not+ verb prototype ~

Don't let+third person pronoun or noun+verb prototype accusative.

Let's not say anything about it.

Let's not say anything.

Don't let them play with fire.

Don't let them play with fire.

Sentence pattern conversion

Imperative sentences are sometimes equivalent to conditional adverbial clauses guided by if.

Imperative sentence: Use your head and you will find a way.

Conditional sentence: If you use your head, you will find a way.

If you use your head, you will find a way.

pay attention to

Answer the question of let' s ~ with Yes, let 's.no, let's not.

The method of transforming imperative sentences into interrogative sentences;

The form of interrogative sentence after imperative sentence

A, Let's means that the speaker makes suggestions to the other party, the subject of short questions is expressed by we, and the questions are expressed by shall we or shan't we, for example, shall we have a cup of tea?

B, let me or let us show that the listener makes a request. The question is whether you are willing or not.

Give me a break, will you?

C, you can add a short question after other imperative sentences to make the tone more polite.

Take a break, okay?

Stand up, okay?

Imperative sentences are used to express orders, demands, requests, suggestions, etc.

1) There are two kinds of imperative sentences, one is to start with the prototype of the verb and add do before the prototype of the verb (but only to omit the sentence called the subject by the second person).

Take this seat.

Be careful.

Negative structure:

Do not move.

Don't be late.

2) The second imperative sentence begins with let.

Let's ask a rhetorical question

A.let's include the speaker.

Let's try again, shall we?

Shall we try again?

B.let's not include the speaker

Let's try again, shall we?

Can you let us try again?

Negative structure:

Let's not talk about that.

Let's not talk about that.