"Let's celebrate!" PartⅡ PPT

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"Let's celebrate!" PartⅡ PPT

Part One: In-depth Grammar Lectures

1. Understanding the basic characteristics

【Perception of usage】

①—Something flying far away must be a hawk.—Something flying far away must be a hawk.

—No, it can’t be a hawk. —No, it can’t be a hawk.

②A wise man might make a mistake sometimes. A wise man might make a mistake sometimes.

③Mary couldn’t have received my letter, otherwise she would have replied before now. Mary couldn’t have received my letter, otherwise she would have replied before now.

④May you continue in your efforts and achieve new and greater successes.

May you continue to work hard and achieve new and greater achievements.

⑤An Englishman who could not speak Italian was once traveling in Italy.

Once upon a time, an Englishman who spoke no Italian was traveling in Italy.

【Self summary】

The bolded parts in the above five sentences are all ____________, and the verbs that follow them are ____________. In sentence ①, must expresses ____________ speculation about the current situation; can't expresses ____________ speculation; in sentence ②, might expresses the possibility of ____________; in sentence ③, expresses ____________ speculation about the past situation; in sentence ④, may It means ____________; in sentence 5, could means ____________ in the past.

2. In-depth explanation of main usages

1.Usage of can/could

(1) can/could "possibly" means guessing and is generally used in questions and negative sentences.

—Can the news be true? ——Could this news be true?

—It can’t be true. —It can’t be true.

Someone is knocking at the door.Who could it be?

Someone is knocking on the door, who could it be?

(2) can can express a theoretical possibility, referring to a common behavior or situation, meaning "sometimes...".

Anybody can make mistakes.Anybody can make mistakes sometimes.

(3) To express a request or permission (when expressing a request, could is often used instead of can in spoken language to make the tone more euphemistic, and can is used when answering).

Can I go now? Can I go now?

—Could I come to see you tomorrow? ——Can I come to see you tomorrow?

—Yes, you can. (For negative answers, No, I’m afraid not.) —Yes, you can.

(4) Expressing an attitude of surprise, suspicion, and disbelief (mainly used in negative sentences, questions, or exclamations).

How can that be true? I can’t believe my eyes and ears.

How can it be true? I couldn't believe my eyes and ears.

How could you be so careless? How could you be so careless?

(5)could have done means "it was possible to do something but in fact it was not done".

I could have come on time, but my car broke down on the way.

I would have arrived on time, but my car broke down on the road.

2.Usage of may and might

(1) To express permission or request, might is more tactful than may.

—May I watch TV now? ——Can I watch TV now?

—Yes, you may. (Yes, please.)——Yes, you may.

—No, you mustn’t. (No, you’d better not.) — No, you can’t look.

(2) When expressing possibility, might is less likely than may, and may is less likely than can (mainly used in declarative sentences, affirmative or negative sentences, and can is used in interrogative sentences instead).

The story may not be true. The story may not be true.

(3) may/might have done means "something may have happened in the past" or "something should/could have been done (actually not done)".

You might have given him more help, but you were so busy.

You could have given him more help, but you were too busy.

(4)may/might as well It’s better to..., might as well

You might as well do it now. You might as well do it now.

(5)may/might wellpossibly

He may well be late for class. He may well be late for class.

3.Usage of must

①It means "must, should, must". Emphasis on subjective views, only present tense form, the negative form is must not (mustn’t). For questions starting with must, the negative answer should be expressed as needn’t or don’t have to.

We must do it now. We must do it now.

—Must I hand in the paper today? ——Do I have to hand in my paper today?

—Yes, you need/must. —Yes, you must (pay).

—No, you needn’t/don’t have to. —No, you don’t have to.

②Indicates the inevitable result.

All men must die. All men must die.

③It can also express that the subject is stubborn and prefers to do things that others do not want to do.

Why must you always interrupt me? Why did you insist on interrupting me?

Let's celebrate! PPT, part 2: Learn and practice now

Complete sentences

1._________________________what’s happening over there?

Can you tell me what happened over there?

2.____________________ with the manager, sir?

Sir, can I speak to the manager?

3.Man _______________ or any other star in the universe now, but we _______________ years ago.

Humans can now reach the moon or any other star in the universe, but years ago we couldn't get there.

4.Johnny, you ____________________________, you ____________________________.

Johnny, you can't play with knives, you'll hurt yourself.

5.You ____________________________ this problem, though it was a little difficult.

You may have solved this problem, although it is a bit difficult.

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Update Time: 2024-11-20

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