What is an object clause? (Be detailed! )

Object clause (1) An object clause is the object of the main clause in a complex sentence. Object clauses are usually guided by this and are often omitted in spoken English. When the predicate verb in the main sentence is the present tense or the future tense, the predicate verb in the clause is not affected by the predicate verb tense in the main sentence, and any tense can be used as needed. She said that she worked from Monday to Friday. She said that she worked from Monday to Friday. She said she would leave a note on his desk. She said she would leave a note on his desk. She said that she had never been to Mount Emei. She said that she had never been to Mount Emei. When the predicate of the main clause is the past tense, the tense in the clause is generally used to represent a past tense. He said there was no class yesterday afternoon. He said there was no class yesterday afternoon. He said he would take care of the baby. He said he would look after the baby. He said they were having a meeting at that time. He said they were having a meeting at that time. When the predicate of the main clause is the past and the object clause describes the objective truth (facts), the tense of the object clause is the simple present tense. For example, the teacher told us that nothing is difficult if you put your heart into it. The teacher told us that where there is a will, there is a way. She said that her father was twenty-eight years older than her. She said that her father was 28 years older than her. He said that the speed of light is much faster than the speed of sound. He said that the speed of light is much faster than the speed of sound. Object clause (2) An object clause guided by a connecting pronoun or adverb. The conjunctions "whether" and "if" that lead to noun clauses have the same usage and meaning when leading to object clauses. However, only the object clause and the subject clause not at the beginning of the sentence can be introduced, and when can also introduce the subject clause, predicative clause and appositive clause besides the object clause. We don't know if this is correct. We don't know whether it is correct or not. The question is where she should do it. The question is whether she should do it. Where it is true is still a question. Whether this is true or not is still a question. Try to compare: if clause is "whether" after the main clause, it leads to the object clause. I wonder if it's true. I wonder if it's true. When the if clause says "if" before the main clause, it leads to the adverbial clause. If I have time, I will go there. If I have time, I will go there.

Review target

▲ Master the word order of object clauses. ▲ Master various conjunctions that lead to object clauses.

▲ Master the mutual echo of the tense of the main clause and the object clause.

Pre-class preparation requires students to review the concept and usage of object clauses and make sentences with various guiding words.

Key points of knowledge

1. Object clause is used as the object of a transitive verb or preposition in a sentence, and the clause is placed after the main clause without commas.

2. The words that guide the object clause are:

Conjunction that (often omitted in spoken English), if, whether, such as:

He knew that Jim would work hard.

Connective pronouns who, who, which, etc. , such as:

Do you know who they are waiting for?

Connect adverbs when, where, how, why, etc. Can you tell me how to get to the station?

Both "what" and "if" have the meaning of "whether". Generally speaking, they can be used interchangeably, but after prepositions,

Use with or not before the infinitive. When can only be used at the beginning of a sentence or when introducing predicative clauses and appositive clauses, for example, I want to know if the news is true. He doesn't know when to stay or not.

4. Object clauses should be in the order of declarative sentences.

5. The object clause must pay attention to the tense echo, that is, when the predicate verb in the main sentence is in the past tense, the predicate in the clause moves.

Words should also use the tense of the past category, but if the clause States facts or objective laws, the tense of its predicate still uses the simple present tense, such as:

He asked who could answer the question.

My father told me that the earth goes around the sun.

6. An object clause can only use one conjunction.

7. When the predicate verbs in the main sentence are verbs such as think and believe, the negative meaning of the object clause should be placed in the main sentence. In addition, when the subject of the main sentence is the first person, if an additional question is followed, the subject and predicate of the additional question should be consistent with the subject and predicate of the clause. For example:

I don't think he looks like his father, does he?

8. Direct speech and indirect speech are also object clauses. Direct quotation refers to the original words of others, which are put in quotation marks.

Connect without conjunctions; Indirect speech is to report others' words in one's own words, usually connected with the main sentence by conjunctions.

(1) The declarative sentence becomes the object clause guided by that, such as:

He said, "I am very happy." He said he was happy.

(2) General interrogative sentences become object clauses guided by if (where), such as:

He asked me, "Does his father know Mr. Green?"

He asked me if his father knew Mr. Green.

(3) Special interrogative sentences become object clauses under the guidance of interrogative words such as who, what, where and how (connecting pronouns or adverbs), such as:

He asked me, "Where is Mr. Wang?"

He asked me where Mr. Wang was.

Pay attention to the changes of conjunctions, tenses and word order in the above examples.