(2) past participle of modal verb +be+ and transitive verb
Now, take the verb ask as an example, and list the passive voices of the general present tense and the general past tense as follows: affirmative negative doubt general present tense I is ask. ..
He/she was asked ...
Someone asked us/you/them ... nobody asked me. ...
He/she was not questioned. ...
We/you/they were not asked ... Did anyone ask me ...?
Did he/she ask ...
Did we/you/they ask ...? Someone asked me ...
He/she was asked ...
Someone asked us/you/them ... nobody asked me. ...
He/she is not invited. ...
Nobody asked us/you/them. Did someone ask me ...
Has anyone asked him/her ...
Are we/you/they invited ...? Passive voice is often used to state facts, usually in scientific articles or news reports. Simple present tense and simple past tense are transitive verbs. In the past participle, be was called tense and numeral change.
The perfect tense have done, with passive been in the middle.
Generally, I will (will) do it in the future, and passively turn it into being done.
In the future, there is nothing passive that should be done.
It has been completed in the present perfect tense.
Do it from time to time, passively and be done.
Affection, help, existence and proper arrangement all change with the new subject.
Add not after the negative help and help before the main question.
The subject is only an interrogative word, and the direct word order comes first.
General feelings will help you, and double guests will change between guests.
The compound object becomes the subject, and the object complement and the subject complement also change.
The second sentence, "be person and hours change", refers to the change of be person, tense and singular and plural. "Emotional help" means that modal verbs and auxiliary verbs "must, can, can, should and will" all change with new subjects (mostly objects in active sentences). "The interrogative auxiliary verb comes before the subject" means that if there are two auxiliary verbs, you should put the subject after the first auxiliary verb or put the first auxiliary verb before the subject. Here is a detailed example:
The active voice becomes the passive voice. Example:
General present tense:
Lord: We believe him.
Bei: We believe him.
Simple past tense:
Lord: He bought some pens for his children.
Bei: He bought some pens for his children.
Simple future tense:
Lord: Everyone will know the truth soon.
Bei: The truth will be known to everyone.
Present continuous tense:
Lord: Mary is making a doll.
Bei: Mary is making a doll.
Past continuous tense:
Lord: They carried the injured players.
The injured are being carried by them.
The present perfect tense:
Lord: He has received the letter.
He has received the letter.
Past perfect tense:
God: They have built ten bridges.
They have built ten bridges;
1, Initiative: Children warmly welcome foreign experts.
Passive: Foreign guesses are warmly welcomed by children.
The children warmly welcomed the foreign guests.
2、
Initiative: People think he is brilliant.
Passive: He is considered brilliant by people.
People think he is very talented.
Both of the above situations are examples of using the general tense "be done". Some people say that "be done" changes with time and number, the third person "foreign friend" is plural and the tense is past tense, so "be done" is "were given" and the passive "be done" becomes singular third person.
Passive:
This speech was made by Comrade Wang. ("Delivered" is the passive state of the general past tense)
This is Comrade Wang's speech.
A serious train accident happened near the border. Two people were killed and twelve injured.
A very serious train accident happened at the border, killing two people and injuring twelve others.
A truly honest man is called an upright man.
An outspoken person is truly honest.
Someone handed a note to the speaker.
Someone handed the speaker a note.
John was elected monitor instead of Harry.
George was elected monitor instead of Henry.
Volcanoes are described as active, dormant or extinct.
Volcanoes are called active volcanoes, dormant volcanoes or extinct volcanoes.
The soldiers died, but the train was saved.
The soldier died, but the train was saved.
People think he is clever but dishonest.
He is considered clever but dishonest.
The first zoo in America was established in 1874.
The first zoo in America was established in 1874.
Families are often broken up; The wife was taken away from her husband and the children were taken away from their parents.
Families are always falling apart, husbands lose their wives and parents lose their children.
This information is urgently needed.
This information is very much needed.
Most environmental problems exist because insufficient measures have been taken to prevent them in the past.
Most environmental pollution problems exist because proper protection measures were not taken in the past. "havedone", passively add "been" in the middle.
("had done" is also included in the past perfect tense).
Example:
1, initiative: We studied English in an amateur school for 3 years.
Passive: We studied English in an amateur school for three years ("have" became "has" with the new subject).
We have been studying English at night school for three years.
Initiative: By the end of last year, they had produced 100 tractors.
Passive: By the end of last year, 100 tractors had been produced.
By the end of last year, they had produced 100 tractors.
3. Initiative: They built a power station in their hometown.
Passive: A power station was built in their hometown.
A power station was built in their hometown.
4. initiative: they warned us to be careful of mice.
Passive: They warned us to be careful of mice.
They reminded us to pay attention to mice.
5. Initiative: People pile plastic bags filled with rubber on the street.
Passive: The street is full of plastic bags filled with rubber.
People piled plastic bags full of rubbish in the street.
6. Initiative: We have used nuclear energy to generate electricity.
Passive: Nuclear energy has been used by us to generate electricity.
Nuclear energy is used by us to generate electricity.
7. Initiative: No one has ever beaten him at tennis.
Passive: He has never been beaten at tennis.
As far as tennis is concerned, no one is his opponent.
("No one" involves both total negation and partial negation. See the first lesson on negation.)
The person who owns the gun may try to deny that he used it. But anyone who saw the smoke knew that the gun had just been fired.
A man with a gun may try to deny that he fired a gun. But anyone who sees the gun smoking will know that he just fired.
Today is Cilia's wedding. She just married Bob.
Today is Celia's wedding. She just married Bob.
The lecture committee has announced the themes of these lectures.
The speech committee has announced the themes of these speeches.
The same is true of the past perfect tense:
Initiative: Someone helped me shine my shoes.
Passive: My shoes have been cleaned.
Someone wiped my shoes.
Initiative: When I came back, I found that they had towed away my coriander. I asked them why they did it, and they said it was because I parked it under the "No Parking" sign.
Passive: My car has already left. I asked why I did it and told him ... it was parked under the "No Parking" sign.
When I came back, I found my car towed away. I asked them why they did it. They told me because I parked my car in the "no parking" area.
Initiative: As of last year1February, they had built three ships.
Passive: By last year1February, they had built three ships.
By the end of last year, they had built three ships.
Before the invention of synthetic materials, the research has been focused on the improvement of natural building materials.
Before synthetic materials were made, research work focused on improving natural building materials.
He didn't say whether all the steel pipes had been inspected.
He didn't say whether all the steel pipes had been inspected.
After the invention of plastics, engineers have a wider choice of materials.
After the invention of plastics, engineers have a wider choice of materials. "Should (will) do", passively change "doing" into "being done"
That is, from "should do" or "will do" to "should do" or "will do".
Initiative: We will build a large modern power plant in our city.
Passive: Our city will build a large modern power plant.
Several large modern power plants will be built in our city.
(The word "should" in "should do" should be changed to "will" with a new subject, and the word "do" should be changed to "be done"). )
Initiative: I will send my second son to school next September.
Passive: My second boy will be sent to school next September.
I will send my second son to school in September.
Initiative: In order to fool people, swindlers will make this brick with lead and cover it with gold.
Passive: this brick will be made of lead, and the liar will cover the "lead brick" with gold.
Bricks will be made into such "bricks" by swindlers with gold.
Initiative: They will ask you many strange questions.
Passive: You will be asked many strange questions by them.
They will ask you many strange questions.
Generally speaking, the objects guided by "by" in passive sentences can be omitted if they are personal pronouns such as you, me and him, and "someone no one" is not guided by "by". If it is a noun, it can't be omitted, but today's English can also be omitted.
Initiative: The people of China will conduct more space exploration in the future.
Passive: China people will conduct more space exploration in the future.
The people of China will conduct more space exploration in the future.
Similarly:
After a period of use, the battery should be replaced. After a period of use, the battery should be replaced.
Usually, there is electricity 24 hours a day. But tomorrow the day will be cut off. Usually, electricity is supplied all day, but there will be a power outage tomorrow morning.
Nuclear explosions will have more peaceful uses in the future. More peaceful uses of nuclear explosions will be found in the future.
From now on, more efforts are needed to make this miracle come true in a short time. In order to realize this miracle in a short time, more work needs to be done from now on.
This machine will not be used again. This machine can no longer be used.
Do you need more gasoline? Do you need more gasoline?
But what about the past tense and the future tense? Please remember the following formula:
Generally, the past and future tense will happen sometime in the past.
Active "should (will)" "do" and passive "be done" are prototypes.
There will be no passivity in the future, and so will the present perfect tense.
Initiative: A few days ago, we were not sure when we should carry out the new plan ahead of schedule.
Passive: When the new plan will be carried out.
A few days ago, we were not sure whether we should carry out the new plan ahead of schedule.
Initiative: I didn't say we should replace the equipment.
Passive: I didn't say I wanted to change the equipment.
I didn't say we would replace that equipment.
Initiative: A few days ago, my supervisor told me that he would give me a special instruction.
Passive: The supervisor told me a few days ago that he would give me a special tutorial.
A few days ago, my tutor said that he would give me individual tutoring.
Initiative: I never thought that he would bring me the information so early.
Passive: I never thought he would tell me the news so early.
I didn't expect him to bring me the information so early. There is no passive voice in the future continuous tense.
The present perfect tense is the same. Been doing it,
The future tense indicates that the action is going on at some time or stage in the future, and the present perfect tense indicates that the action happened in the past.
Examples; We hope that your company can send an engineer to check this equipment as soon as possible. We hope that your company can send engineers to check this equipment as soon as possible.
In a few minutes, our passenger plane will fly in the stratosphere. Our passenger plane will fly in the stratosphere in a few minutes.
We hope that scientists can develop new energy sources to meet the demand for electricity. We hope that scientists will explore new energy sources to meet the energy demand. (Future continuous tense)
What will you do tonight? What are you going to do tonight? (Future continuous tense)
1980 has been living in Anshan. (present perfect tense) 1980.
How long have you been studying English? How long have you been studying English? (present perfect tense)
We have been waiting at the airport for the reason of the fog. We waited at the airport all day because of the fog. (present perfect tense)
Since then, applied mathematicians have successfully copied many problems in astronomy. Since then, applied mathematicians have successfully solved many astronomical problems.
None of the above is dynamic. The present continuous or past continuous is "be" plus "do" in the form of person, time and number. The passive form is "yes" plus "being done", and "yes" remains unchanged. Passivity in present continuous tense and past continuous tense is the focus of passivity, which is easy to make mistakes. For example:
Initiative: Workers are repairing the main building of Northeast Institute of Technology.
Passive: The main building of Northeast Institute of Technology is being repaired by workers.
Workers are repairing the main building of Northeast University of Technology.
Two reservoirs are being built at the same time. The two reservoirs were built at the same time.
Members of the Committee are considering this thorny issue. Members of the Committee are considering that thorny problem.
Equipment and food are being transported to the flood-stricken areas. Equipment and food are being airlifted to the disaster area.
Another overpass is being planned. They plan to build another overpass.
We can't get through because the 19 road is under maintenance. We can't get through because the 19 road is under maintenance. Affection, help, existence and proper arrangement all change with the new subject.
How to deal with passive verbs with modal verbs and auxiliary verbs is complicated. It should change with the new theme, such as "yes, maybe; Yes, yes; Should, should; Maybe, maybe; Must; Should; Need; Have to; Intend; Get used to it; It seems; Happened to wait. For example:
Initiative: We must keep this in mind.
Passivity: This must be kept in mind.
We must remember this.
Initiative: We can put the reformer in that place.
Passive: the reformer can be put in that place.
We can put the refrigerator in that place.
Active: We won't use the washing machine any more.
Passive: the washing machine will not be used again.
We can't use that washing machine any more. The original predicate "should be used" dynamically changes to "will" with the new subject.
Initiative: We should take more measures to prevent correction.
Passive: More measures will be taken to prevent conflicts. ("Will" becomes "Will")
We will take more measures to prevent corrosion.
I should be criticized for this.
All these need to be solved very carefully. All this must be solved seriously.
The hall will be rebuilt.
The exhibition will open tomorrow.
"May" plus the perfect or progressive aspect of infinitive indicates "possibility", which is mainly used in affirmative sentences and can never be used in interrogative sentences. While "can" is used with the perfect aspect or continuous tense of infinitive to mean "possible". It is only used in negative sentences and interrogative sentences, not in affirmative sentences. However, if the past tense of "can" or "may", that is, "could" and "might" are matched with the infinitive perfect or progressive perfect, they can be used in various structures. Ken, no, Chen and doubt are all acceptable.
It can't have been lost in the mail, can it?
It can't have been lost in the post office.
Add "no" after the negative help and help before the main question.
In the passive state of negative sentences, the negative adverb "not" must be added after the first auxiliary verb, not after other auxiliary verbs. Similarly, in the passive voice of interrogative sentences, the first auxiliary verb comes before the subject.
Example: Why didn't any measures be taken to end the strike?
"not" must be placed after the first auxiliary verb "has", and the first auxiliary verb "has" must be placed before the subject "any". Never write: Why didn't you do anything about the strike? Or why not do anything to end the strike?
Why not take some measures to end the strike?
This exercise will not be done in class.
Can't write: This exercise will not be done in class.
We won't do exercises in class.
Is there any other way to get information about Mars?
What other ways can I get information about Mars?
Why was he imprisoned?
Why is he in prison?
Is it necessary to tell her about it?
Do you need to tell him?
The subject is only an interrogative word, and the direct word order comes first.
If the subject happens to be an interrogative word or is modified by an interrogative word, then the declarative word order should be used later.
For example, what can be dropped from a satellite?
What will the satellite throw out?
What measures (projects) are being taken to develop this new science? (The subject is modified by the interrogative word "what")
What measures are being taken to develop this new technology?
What kind of device (main body) is needed to make the control system simple? (The subject is modified by interrogative words)
What equipment is needed to simplify the control system?
What measures have been taken to improve technology?
What measures have been taken to improve these technologies? ("What" is the subject of the sentence)
It should be pointed out that some students let us study deeply, and she can clearly see her passive self in the mirror, but they don't know that intransitive verbs are usually not dynamic. Passivity of intransitive verbs, reflexive pronoun verbs, cognate object verbs, conjunctions, causative verbs and phrasal verbs. 1, change the object in the original active sentence into the subject of the passive sentence.
2. Change the verb into a passive form, that is, be+ past participle, and pay attention to the person and number that change with the subject, while the tense of the verb remains the same.
3. If necessary, the subject of the original active sentence will appear after by in the form of its object (pay attention to the object of the pronoun), and it can be omitted if it is not necessary.
4. Other components (attributive and adverbial) remain unchanged. Understanding the concept of passive voice with modal verbs. The passive voice with modal verbs expresses the feelings and attitudes reflected by passive actions. Modal verbs that can be used in the passive voice of junior middle school are "can, can, must, need and should", which mean "can be ……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………. Master the transformation methods of different sentence patterns in the passive voice of modal verbs. The changes of interrogative sentences and negative sentences in the passive voice with modal verbs are all done with the help of modal verbs. (1) General interrogative sentences directly advance modal verbs in the passive voice of declarative sentences. Must the work be done at once? Must the work be finished at once? Should your homework be finished before six o'clock? Should your homework be finished before six o'clock?
(2) Special interrogative sentences consist of interrogative words and the passive voice of general interrogative sentences. When must this work be finished? When must this work be finished? Where can I find the lost books? Where can I find this lost book?
(3) Interrogative questions form additional interrogative parts through modal verbs. The bridge will be completed next year, won't it? This bridge can be built, can't it? This book shouldn't be taken out of the library, should it? This book shouldn't be taken out of the library, should it?
(4) It is enough to add "not" or "never" after modal verbs in negative sentences, but the negative form of "must" is "needle don't". This work doesn't need to be done at once. There is no need to do this work at once. This dustbin should be put here. This dustbin shouldn't be put here .. 3. The answer to a general question should keep the original modal verb, but when "must" means "don't have to" and "need" means "necessary", it means "must" means "must" means "sure". For example:-Should my exercise be finished today? Should my homework be finished today? Yes, they should .. Yes, it should be finished today. No, they shouldn't .. No, they shouldn't finish it today. Must his homework be handed in at once? Must his exercise book be handed in at once? Yes, you must. Hand it in right away. No, it's not necessary. Hand it in right away. Does he need an operation at once? Must he have an operation at once? Yes, he must. Yes, he must. No, he doesn't. ) 1) intransitive verbs or verb phrases have no passive voice (that is, most instantaneous verbs):
Appearance, death (death), disability (disappearance), end (6. End), failure, happiness, persistence, lying, keeping, sitting, spreading, standing.
Break out, realize, fall asleep, keep silent, lose confidence, happen.
After the fire, there was not much left in my house.
Comparison: rising, falling and being happy are intransitive verbs; Raise and seat are transitive verbs.
The price has gone up.
(Yes) The price has gone up.
The accident happened last week.
The accident happened last week.
The price has gone up.
(Right) The price has gone up.
Please sit down.
(Right) Please sit down.
If we want to use passive voice correctly, we should pay attention to which verbs are transitive and which are intransitive. Especially polysemous verbs often have two uses. The only way to solve this problem is to pay more attention to accumulation in the learning process.
2) Transitive verbs or verb phrases that cannot be used in the passive voice:
Suit, own, hold, get married, own, hope, spend, pay attention to, watch and agree, arrive/enter, shake hands, succeed, suffer, happen to, participate in, enter, belong to.
This key fits this lock just right.
3) The copula has no passive voice (except "keep"):
Appear, become, fall, feel, get, grow, see, keep, seem, smell, sound, stay, taste, turn.
Sounds good.
4) Transitive verbs with cognate objects, reflexive pronouns and interactive pronouns cannot be used in passive voice:
Death, death, dreams, life, life
She had a nightmare last night.
5) When the object is infinitive, it is rarely used in the passive voice.
She likes swimming.
She likes swimming.