that的用法

That as a DeterminerLook at that man over there.What about that book you borrowed from me last month?How much are those apples at the back?That dress of hers is too short.Have you forgotten about that money I lent you last week.That as an AdverbI was that/so angry I could have hit him.I can’t walk that far.I was that scared I didn’t know what to do.I will never forget the evening (that) / when we went to the theatre.The house (that)/where I used to live has been knocked down.That as a Relative Pronoun'That' can be used as a relative pronoun to connect two clauses. In this case, 'that' can also be substituted by 'who' or 'which'.Tom bought the apples that the man was selling. =Tom bought the apples which the man was selling.Peter invited the boy that was new in class. =Peter invited the boy who was new in class.That in a Clause as an Object'That' can be used in clauses that act as the object of a verb.Jennifer hinted that she would be late for class.Doug knew that he needed to hurry up.The teacher suggested that we finish our homework.That in a Clause as a Compliment to a Noun or an Adjective'That' can be used in a clause following a noun or an adjective as a compliment. A compliment helps give additional information about the noun or adjective. It answers the question 'why'.Peter is upset that his sister wants to drop out of high school.Mr. Johnson appreciates our efforts that have brought in a lot of donations.She is certain that her son will be accepted to Harvard.That Clause as Subject of a Sentence'That' clauses can introduce a phrase acting as the subject of a sentence. This use of 'that' clauses is somewhat formal and is not common in everyday speech.That it is so difficult is hard to understand.That Mary feels so sad is very upsetting.That our teacher expects us to do two hours of homework every day is crazy!Related to the use of 'that' clauses as subject is the more common phrase' The fact that ...' to introduce a sentence. While both forms are correct, it is much more common to begin a sentence with the phrase 'The fact that ...'The fact that he wants to see you should make you happy.The fact that unemployment is still high proves what a difficult economy this is.The fact that Tom passed the test shows how much he has improved.Compound Conjunctions with ThatThere are a number of compound conjunctions (words that connect) with 'that'. These expressions tend to be used in formal English and include:in order that, so that, providing that, in case that, now that, given thatHe purchased the computer so that he might improve his typing.Susan told him she would marry him providing that he found a job.Alice feels happy now that she has moved into a new home.Dropping That'That' can be dropped from the sentence with no change in meaning in the following cases:After Reporting Verbs'That' can be dropped after reporting verbs such as say (that), tell someone (that), regret (that), imply (that), etc.Jennifer said (that) she was in a hurry.Jack told me (that) he wanted to move to New York.The boss implied (that) the company was doing very well.After AdjectivesSome adjectives can be followed by 'that' when answering the question 'why'. 'That' can be dropped after the adjective.I'm happy (that) you found a new job.She's sad (that) he's going to move to New York.Jack is anxious (that) he didn't pass the test.As Object in Relative ClausesIt's common to drop 'that' when it is the object of the relative clause it introduces.He invited the boy (that) he met on the train.Shelly purchased the chair (that) she had seen at the auction.Alfred wants to read the book (that) Jane recommended.ThatvswhichNonrestrictive Clause—whichThe current, which is very rapid, makes the river dangerous.He has to work on Sundays, which he doesn’t like.The London team, which played so well last season, has done badly this season.preposition + whichShe may be late, in which case we ought to wait for her.The documents for which they were searching have been recovered.Note：He had only the long nights in which he could study.=He had only the long nights in which to study.ThatWhen the antecedent is much, little, none, all, few, every(thing), any(thing), or no(thing): All that she lacked was training.Have you everything that you need?When the antecedent is modified by the very, the only or the same:This is the only example that I know.Those are the very words that he used.When the antecedent is modified by a superlative adjective or an ordinal number:This is the best dictionary that I’ve ever used.The first thing that you should do is to work out a plan.When the antecedent is the predicative:China is not the country that it was.When the antecedent is a combination of both people andthings:They talked about the persons and things that most impressed them.To avoid repetition:Which is the course that we are to take?that有四种词性第一、that 用作形容词（后接复数名词时用those）。