find that从句的用法
find that从句的用法
一、介绍
从句是英语中的重要语法结构之一。其中，以“that”开头的从句被称为that从句。掌握好that从句的用法，能够帮助我们更准确地表达观点，并增强文章的逻辑性和连贯性。在本篇文章中，我们将详细讨论that从句的用法。
二、作用及引导词
1. 作用：
that从句可以起到名词性从句、形容词性从句和副词性从句三种作用。
- 名词性从句：在主语、宾语、表语等位置上作为名词使用。
- 形容词性从句：修饰一个名词或代词，充当该名词的定语。
- 副词性从句：充当主句中某个成分，如状语、目的状语等。
2. 引导词：
that是最常见也是最基础的引导词之一。但需要注意，在口语和非正式写作中，有时候会省略不使用。
三、名词性从句
1. 主语位置：
In many countries, it is common that people shake hands when they meet for the first time.
2. 宾语位置：
I believe that honesty is the best policy.
3. 表语位置：
The problem is that we don't have enough time to finish the project.
4. 同位语位置：
The news that she won the competition surprised everyone.
四、形容词性从句
1. 修饰人：
My sister is the person that always helps others in need.
2. 修饰物：副词的位置
That is the book that I borrowed from the library yesterday.
五、副词性从句
1. 时间状语从句：
I will call you as soon as I finish my work.
2. 地点状语从句：
We found a nice café that serves great coffee near our hotel.
3. 原因状语从句：
He didn't pass the exam because he didn't study hard enough.
4. 目的状语从句：
She bought a new dress so that she could wear it to the party tonight.
5. 结果状语从句：
It was raining heavily, so we decided to stay at home all day long.
6. 条件状语从句：
If you work hard, you will achieve your goals eventually.
7. 让步状语从句：
Although he was tired, he still finished his work on time.
六、注意事项
1. 把that与which区分开来，that引导的是限制性定语从句，而which引导的是非限制性定语从句。
- That is the book (that) I borrowed from the library yesterday.
- The weather, which had been sunny all week, suddenly changed.
2. 当主句与that从句主谓一致或前后时态一致时，常会省略that。
- He said (that) he would come to the party.
- It is important (that) you arrive on time.
3. 当主句的动词为某些使役动词（如advise, ask, command, order）时，常省略that。
- The teacher advised us to work hard.
- The doctor ordered him not to eat spicy food.
七、总结
掌握好that从句的用法能够帮助我们更准确地表达观点，并增强文章的逻辑性和连贯性。它可以充当名词性从句、形容词性从句和副词性从句，分别在不同的语法位置上发挥作用。同时，需要注意区分指示代词that与关系代词which的引导定语从句的不同使用情况，并注意在一些情况下可以省略that。只有通过反复练习，我们才能进一步巩固并灵活运用这一语法结构。

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