定語(yǔ)從句that不能省略
定語(yǔ)從句that的用法大家了解嗎？以下是小編分享的定語(yǔ)從句that的用法，一起來(lái)看看吧！
一、定語(yǔ)從句that不能省略情況
1.非限制性定語(yǔ)從句中,that有其他意思不可省
2.有不定代詞時(shí)
3.有only時(shí)
4.有序數(shù)詞時(shí)
5.指人又指物時(shí)
6.有形容詞最高級(jí)時(shí)
二、定語(yǔ)從句中關(guān)系詞的省略與不省略
1.關(guān)系代詞which,whom,who,that在定語(yǔ)從句中作賓語(yǔ)時(shí)可以省略.
Here is the man (who/that/whom)you're been looking for.
以下情況不能省略：
�。�1）在介詞+whom與介詞+which中,whom,which不能省略.
Do you know any shops nearby in which I can buy flowers?
That is the headmaster with whom my father was talking just now.
注：當(dāng)介詞放在動(dòng)詞后時(shí),which,whom就可以省略.
Who is the man (whom) you talked with just now?
�。�2）在非限制性定語(yǔ)從句中,作賓語(yǔ)的關(guān)系代詞也不能省略.
Mr Green,whom you know,is the tallest in our school.
The elephant is like a spear,as anybody can see.
�。�3）在the same ...as,such...as,as...as,the same...that中,as,that即使作賓語(yǔ),也不能省略I have bought the same bicycle as you have (bought).(指同類(lèi)用as)
This is the same book that I read the day before yesterday.(that指同一個(gè))
�。�4）當(dāng)由and,but,or等連詞連接兩個(gè)或兩個(gè)以上的定語(yǔ)從句修飾一個(gè)先行詞時(shí),第一個(gè)關(guān)系代詞可省,但第二,第三個(gè)不可省略.
This is the book (which) I read yesterday and which I find very interesting.
2.當(dāng)that在從句中作補(bǔ)語(yǔ)時(shí)可以省略.
He is not the man (that) he used to be.
She is all (that) a teacher should be.
3.在there be 結(jié)構(gòu)中出現(xiàn)定語(yǔ)從句,或在定語(yǔ)從句中出現(xiàn)there be 時(shí),用作主語(yǔ)的關(guān)系代詞也可省略.
There is a man downstairs (who) wants to see you.
This is the best dictionary (that) there is in the library.
4.狀語(yǔ)的省略
（1）當(dāng)先行詞是reason,而且定語(yǔ)從句中作原因狀語(yǔ)時(shí),關(guān)系代詞可用why,that,也可以省略.
The reason (why/that) he failed was his laziness.
That is the reason (why) I did it.
�。�2）當(dāng)先行詞是way,且在定語(yǔ)從句中作方式狀語(yǔ)時(shí),關(guān)系代詞可用in which,that,也可以省略.
The way (in which/that) these comrades look at problems is wrong.
That was the way (in which/that) she worked the problem out.
注意：當(dāng)關(guān)系代詞在定語(yǔ)從句中作主語(yǔ)時(shí),不省略.
例如：I don't know the way that/ which leads to the top of the mountains.
(3)當(dāng)先行詞是time時(shí),關(guān)系代詞可用when,that 或省略.
The second time (that) I saw him was in 1980.
I don't know the exact time (when/that) the sports meet will take place.
注意：關(guān)系代詞作賓語(yǔ)有時(shí)也不能省略.
拓展
1同位語(yǔ)從句
在復(fù)合句中用作同位語(yǔ)的從句叫同位語(yǔ)從句，常常跟在fact,idea,opinion,news,hope,belief等名詞后面,用以說(shuō)明該名詞表示的具體內(nèi)容，可以由名詞、代詞、短語(yǔ)及句子來(lái)充當(dāng)同位語(yǔ)從句。
同位語(yǔ)從句是名詞從句,其作用相當(dāng)于一個(gè)名詞,對(duì)前面抽象名詞的進(jìn)一步的說(shuō)明和解釋。
2定語(yǔ)從句
定語(yǔ)從句是由關(guān)系代詞和關(guān)系副詞引導(dǎo)的從句，用來(lái)修飾名詞或代詞，起到定語(yǔ)的作用，所以叫做定語(yǔ)從句。定語(yǔ)從句的作用是作定語(yǔ)修飾主句的.某個(gè)成分，通常分為限定性和非限定性從句兩種。
定語(yǔ)從句不同于單詞作定語(yǔ)的情況，它需要放在被修飾的詞（即先行詞）之后，一般由關(guān)系代詞來(lái)引導(dǎo)，關(guān)系代詞必須放在定語(yǔ)從句之首。被修飾的詞叫先行詞，由關(guān)系詞（關(guān)系代詞或關(guān)系副詞）引出。
3同位語(yǔ)從句與定語(yǔ)從句的區(qū)別
1、引導(dǎo)同位語(yǔ)從句的that是連詞,在從句中不充當(dāng)任何成份,而引導(dǎo)定語(yǔ)從句的that是關(guān)系代詞,除起連接作用外,還在從句中充當(dāng)主語(yǔ)、賓語(yǔ)或表語(yǔ)等，如：
The idea that computers can recognize human voices surprises many people.
計(jì)算機(jī)能夠識(shí)別人的聲音的想法使許多人感到驚奇。（同位語(yǔ)從句，that在從句中不充當(dāng)任何成份）
The idea that he gave surprises many people．他提出的觀點(diǎn)令許多人感到吃驚。
（定語(yǔ)從句，that在從句中作gave的賓語(yǔ)）
2、引導(dǎo)詞的不同
what,how,if,whatever等可引導(dǎo)名詞性從句，但不引導(dǎo)定語(yǔ)從句。
3、同位語(yǔ)從句與前面的名詞是同位關(guān)系,即說(shuō)明它前面名詞的內(nèi)容；而定語(yǔ)從句與前面的名詞是修飾與被修飾關(guān)系,即限定它前面的名詞范圍,或補(bǔ)充一些情況。如：
The news that l have passed the math exam is true．我通過(guò)了數(shù)學(xué)考試這一消息是真的。
（同位語(yǔ)從句,即從句所表達(dá)的意思就是前面名詞的內(nèi)容）
The news that he told me just now is true．他剛才告訴我的消息是真的。
�。ǘㄕZ(yǔ)從句,從句對(duì)前面名詞起修飾限制作用,即“他告訴我的”那個(gè)消息,而不是別的消息）
4、定語(yǔ)從句的先行詞是名詞或代詞；而同位語(yǔ)從句的先行詞只能是名詞，而且僅限于idea，fact，hope，news，doubt，truth，information，suggestion，question，belief，conclusion等少數(shù)名詞。而且when，where，why引導(dǎo)的定語(yǔ)從句的先行詞一定分別是表示時(shí)間、地點(diǎn)和原因的名詞，而三者引導(dǎo)的同位語(yǔ)從句的先行詞則肯定不是表示時(shí)間、地點(diǎn)和原因的名詞。I have no idea when they will come.我不知道他們什么時(shí)候來(lái)。(同位語(yǔ)從句)
I’ll never forget the days when I lived there.我永遠(yuǎn)不會(huì)忘記我住在那兒的日子。(定語(yǔ)從句)
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