在下面的情况下则不加 the：
1．当序数词前有形容词性物主代词或名词所有格修饰时,序数词前不用 the.
Mother was my first teacher in my life.妈妈是我生命中的第一个老师.
Tom is Lily's third boyfriend.汤姆是莉莉的第三个男朋友.
2．当表达分数时,序数词前不用 the.
One fifth of the students here are from the country.这儿1/5的学生来自农村.
Three fourths of the students here are from the country.这儿的3/4的学生来自农村.
3．当表达“又一,再一”时,序数词前不用 the,但可加不定冠词.
Please give me a second chance.请再给我一次机会.
The poor woman had a third baby.那个可怜的妇女又生了第三个宝宝.
4．当表达“年月日”时,尤其在朗读时,序数词前要加 the；但当书写时,序数词前不用 the.
He was born on June 6th,1974.他出生在1974年6月6日.
5．当序数词在句中作状语时,序数词前不用 the.
Who got there second?谁第二个到那儿的?
I finished the work first.我最先完成那项工作.
6.当表达考试（赛跑等）中获得的名次时,序数词前不用 the.
She stands first in her class.她在班上成绩排名第一.
说明︰
1.常用片语中没有特定指涉的名词：通常不加冠词,尤其是用在泛指一般的情况.例如:go to school,go by train,in church/college/jail/class,by day/night.2.其他：语言、运动、三餐、疾病.3.有特定指涉,例如特指某天的某一餐,则可加冠词,如 The lunch I had today was nothing but an egg.He will take the train which leaves at 7:00 tonight.
范例︰
Eat breakfastlike a king,lunch like a prince,and dinner like a pauper.--Adelle Davis
说明︰
1.抽象和专有名词一般都不需要冠词,但有例外.
2.特指某种抽象名词 (the N + of --) 则须有冠词：The intelligence of animals is variable but undeniable.
3.专有名词：国家(the United States和the Netherlands除外)、以地名人名命名的学校(the University of Maryland除外)、湖山的名称（山脉如the Rockies除外,河流也要the）.
4.注意!新闻标题会省冠词,但一般文章则不可.例如：US president warns of `epic battle' in case of Iraq defeat.---> The US president warns of an `epic battle' in case of a US defeat in Iraq.
范例︰
Absenceto love is what wind is to fire.lt extinguishes the small; it inflames the great.Roger de Bussy-Rabutin
分离之于爱好比风之于火,它熄灭微弱(的火和爱情),助煽伟大(的火和爱情).
说明︰
1.抽象和专有名词一般都不需要冠词,但有例外.
2.特指某种抽象名词 (the N + of --) 则须有冠词：The intelligence of animals is variable but undeniable.
3.专有名词：国家(the United States和the Netherlands除外)、以地名人名命名的学校(the University of Maryland除外)、湖山的名称（山脉如the Rockies除外,河流也要the）.
4.注意!新闻标题会省冠词,但一般文章则不可.例如：US president warns of `epic battle' in case of Iraq defeat.---> The US president warns of an `epic battle' in case of a US defeat in Iraq.
范例︰
Absenceto love is what wind is to fire.lt extinguishes the small; it inflames the great.Roger de Bussy-Rabutin
分离之于爱好比风之于火,它熄灭微弱(的火和爱情),助煽伟大(的火和爱情).
说明︰
1.抽象和专有名词一般都不需要冠词,但有例外.
2.特指某种抽象名词 (the N + of --) 则须有冠词：The intelligence of animals is variable but undeniable.
3.专有名词：国家(the United States和the Netherlands除外)、以地名人名命名的学校(the University of Maryland除外)、湖山的名称（山脉如the Rockies除外,河流也要the）.
4.注意!新闻标题会省冠词,但一般文章则不可.例如：US president warns of `epic battle' in case of Iraq defeat.---> The US president warns of an `epic battle' in case of a US defeat in Iraq.
范例︰
Absenceto love is what wind is to fire.lt extinguishes the small; it inflames the great.Roger de Bussy-Rabutin
分离之于爱好比风之于火,它熄灭微弱(的火和爱情),助煽伟大(的火和爱情).
说明︰
1.抽象和专有名词一般都不需要冠词,但有例外.
2.特指某种抽象名词 (the N + of --) 则须有冠词：The intelligence of animals is variable but undeniable.
3.专有名词：国家(the United States和the Netherlands除外)、以地名人名命名的学校(the University of Maryland除外)、湖山的名称（山脉如the Rockies除外,河流也要the）.
4.注意!新闻标题会省冠词,但一般文章则不可.例如：US president warns of `epic battle' in case of Iraq defeat.---> The US president warns of an `epic battle' in case of a US defeat in Iraq.
范例︰
Absenceto love is what wind is to fire.lt extinguishes the small; it inflames the great.Roger de Bussy-Rabutin
分离之于爱好比风之于火,它熄灭微弱(的火和爱情),助煽伟大(的火和爱情).
