Question

定语从句中如果是 there be 句型 先行词为人时可以用that做关系词吗？

我是一个高中生 我们老师说there be 句型当中如果先行词是人的时候 关系词只能用who、whom，坚决不能用that；当先行词是物的时候 关系词必须用that
是这样的吗？
还有一种说法 就是无论主语是人还是物 都必须用that
请问哪个对？能具体解释一下吗？？
希望英语良好及专业人士或老师帮忙解释一下 如果能附带高考例句最佳
附:请能叫准的帮一下忙 如果您本身就对于这个问题有疑问的话就请不要回答了 应为本人这里学的已经很乱了 谢谢合作

Answer 1

希望下面关于定语从句难点的总结能够帮到你，高考的时候定语从句的确是个重点，要好好复习！你所问关于主句是there be句型定语从句的情况见下面：

一、6．主句以There be…开头，先行词为物时常用that引导定语从句。
Eg. There is a room in the building that is still free.

三、4. 在以There be…开头，先行词为人的句子中，常用who引导定语从句。
Eg. There is a pretty girl who wants to see you.

若时间充足的话，再逐渐掌握住其它的情况，按照规律去做选择题会节省很多时间的。

定语从句在句中起形容词的作用,它通常修饰它前面的名词或代词,即它的先行词(Antecedent).

一、Which和that在定语从句中指代事物时，一般可互换使用，但在下列情况下通常用that而不用which

1．当先行词是all, everything, anything, nothing, much, few, little, none, the one等不定代词时，常用that引导定语从句。
Eg. All that can be done has been done. 所有能做的已经做了

2．先行词前有only，few，any，little，no，all，every，very等词修饰时，常用that引导定语从句。
Eg. This is the very book that I want to read.

3．先行词前面有序数词（first，second等）或形容词的最高形式对其修饰时，常用that引导定语从句。
Eg. This is the first letter that I’ve received from him since he left.

4．在并列的先行词中既有人又有物时，不能用who或whom，也不能用which，而要用that引导定于从句。
Eg. They talked of things and persons that they remembered in the school.

5．被修饰的成份在主句中是系动词be后面的表语，或关系词本身在定语从句中作表语时，常用that引导定语从句，或省略that。
Eg. She is no longer the sweet little girl that she used to be.

6．主句以There be…开头，先行词为物时常用that引导定语从句。
Eg. There is a room in the building that is still free.

7．主句是以who, which或what开头的特殊疑问句时，用that引导定语从句。
Eg. Who is the lady that is waiting at the school gate?

二、关系代词指代事物时，在下列情况下通常只用which而不用that引导定语从句。

1．在非限制性定语从句中，常用which引导定语从句。
Eg. I said nothing, which made my mother even more angry.

2．当先行词本身是that或是those且指物时。
Eg. Paul has found that which he lost yesterday.

3．当关系代词前面有介词时，常用which引导定语从句。
Eg. I like to live in the house, in front of which there is a tall pine tree.

三、关系代词指人时，在下列情况下通常只用who而不用that引导定语从句。

1．先行词是one, ones或anyone时
Eg. Anyone who leaves the classroom last should turn off the lights.

2．当先行词是人，后面有较长修饰语时
Eg. Do you know the teacher in blue with a book in his hand who is standing at the gate?

3．先行词为those或被those修饰时，常用who引导定语从句
Eg. Those who like football can enter for the game.

4．在以There be…开头，先行词为人的句子中，常用who引导定语从句。
Eg. There is a pretty girl who wants to see you.

5．在非限制性定语从句中，常用who引导定语从句。
Eg. I met an old friend of mine in the street, who had just come from England.

6．当先行词是I, you, he, they等时（多用于谚语中）。
Eg. He who does not reach the Great Wall is not a true man.

7．在介词前置时只用whom。
Eg. In the dark forest, there was not a single person to whom she could turn for help.

四、如果先行词是time, moment, place, reason, way, direction, distance等时，常用that引导的定语从句代替介词＋which或when，where，why等，且that常省略：
Eg. I’d like to know the reason (that/why/for which) you change the plan.

五、As作关系代词引导的限制性定语从句中，只用于和the same, such及as连用的结构中，在句中充当主、宾、表语。
Eg. 1) He is not the same (man) as he used to be. （表）
2) There are as many books as are needed. （主）

注意：如先行词由same修饰，用that或as皆可，但有细微的差别。用that表示“同一的”，用as表示“同样的”（并不一定是同一个—）

Eg. 1) This is the same pen as I lost yesterday.
2) This is the same pen that I lost yesterday.

六、as与which在引导非限制定语从句中的区别：

1．在定语从句中as除了充当一定的句子成分外还有“正如，由…而知”的意思。

2．as引导的定语从句位置十分灵活，可放在句中，句首及句尾，而which引导的定语从句却不能位于句首。

3．as引导的定语从句在语义上要和主句保持一致。
Eg. Lisa has made some progress again, as/which was natural.
Lisa has made some progress again, which was unexpected.

4．如果从句谓语动词是主动语态，且关系代词在从句中作主语时，一般用which。
Eg. My father came back safely, which delighted us.

5．as在从句中作主语时，其谓语为be动词或被动语态，常见的句中谓语为be known/said/announced/reported/expected等。
Eg. He remarried, as was expected.

另外：there be 结构中若是否定结构，后常用but，这时相当于who/that…not。
Eg. In China, there is no one but knows Beijing.