Passive voice knowledge points are summarized and summarized
The passive voice is an important part of English grammar and a difficult point to master in the process of learning English. In English, the passive voice is widely used, which not only makes the sentence structure more compact, but also emphasizes the bearer of the action, making the sentence more objective and natural. Therefore, it is essential for English learners to master the use of passive voice.
Composition of the passive voice.
The passive voice consists of the auxiliary verb be and the past participle of the transitive verb. The auxiliary verb be denotes a passive relation, while the past participle indicates that the action has been completed. The tense change of the passive voice is achieved by the change of the auxiliary verb be. For example, the passive voice in the simple present tense is "am is are + past participle", the passive voice in the simple past tense is "was were+ past participle", and the passive voice in the simple future tense is "will be + past participle".
Usage of passive voice.
The passive voice is used in a wide range of ways, mainly in the following cases:
1.The passive voice is used when the bearer of the action is more important than the performer of the action. For example, "The book was written by him."This sentence emphasizes the author of the book, not the executor of the act of writing the book.
2.When the performer of the action is not important or unknown, the passive voice is used. For example, "the building was destroyed in the earthquake."In this sentence, the performer of the action is not mentioned in the sentence and hence the passive voice is used.
3.When there is a need to emphasize the bearer of the action, the passive voice is used. For example, "the car was hit by the truck."In this sentence, the bearer of the action is the car, and the passive voice can be used to emphasize this bearer.
4.In genres such as science and technology, news, and announcements, the use of passive voice can make sentences more objective and formal. For example, "the patient was treated with antibiotics."This sentence is a common sentence structure in the medical field, and the use of passive voice can make the sentence more objective and professional.
Passive and active voice transitions.
In English, active and passive voices are interchangeable. Generally speaking, the method of changing the active voice to the passive voice is to change the subject of the active voice to the object of the passive voice, and the predicate of the active voice to the be + past participle of the passive voice, while adjusting the tense and voice. For example, "he wrote the book."The passive voice of this sentence is "the book was written by him.""In the process of transformation, it is necessary to pay attention to the relationship between the executor of the action and the bearer of the action, as well as the change of tense.
Considerations for passive voice.
In the process of mastering the passive voice, the following points need to be noted:
1.Notice the change in tense. In different tenses, the form of the verb be will also be different, and it needs to be chosen according to the specific situation.
2.Note the variation of singular and plural forms. The singular and plural forms of the subject affect the form of the verb be, and care needs to be taken to be consistent.
3.Take care to use the correct past participle form. The form of the past participle needs to be chosen according to the tense of the verb and the gender of the subject, and attention needs to be paid to accuracy.
4.Take care to avoid using overly complex passive structures. Overly complex passive structures can make sentences difficult to understand, and simple, clear sentence structures should be used as much as possible.
In conclusion, mastering the passive voice is very important for learning English. By summarizing and summarizing the knowledge points of passive voice, it can help us better understand and apply this grammatical point. In practical application, we need to choose the appropriate passive structure according to the specific situation to make the sentence more natural, accurate and fluent.