初中英语冠词数词专项练习题
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初中英语冠词练习题及答案一、初中英语冠词1.—Are these your aunts?—No, I only have ________ aunt. She is in China.A.the B.an C.a【答案】B【解析】【详解】句意:——这些是你的阿姨们吗?——没有,我只有一个阿姨。
她在中国。
考查冠词的用法。
aunt是可数名词的单数形式,且是以元音音素开头的单词,所以应用不定冠词an修饰,表示“一个”。
故选B。
2.CC plays _________ badminton at 7 p.m., and then she takes _________ walk with her brother.A.a; the B.the; / C./; a【答案】C【解析】【详解】句意:CC在晚上7点打羽毛球,然后她和她的弟弟一起散步。
考查冠词的用法。
a一个,不定冠词,表示泛指;the定冠词,表示特指。
play加球类名词时,中间不用冠词,所以第一空不填;take a walk散步,中间用冠词a,故选C。
3.Tom would like to play _______ football, but his brother will play _______ piano this weekends.A./;the B.the; the C.a;/【答案】A【解析】【详解】句意:汤姆想要踢足球,但是他的弟弟这个周末将弹钢琴。
考查冠词。
a不定冠词,放在辅音音素开始的单词前;the定冠词,表达确指。
在球类运动的名词前不需要用冠词,表达“踢足球”用“play football”。
在西洋乐器名称前用定冠词“the”,表达“弹钢琴”用“play the piano”。
故选A。
4.—Did you see ________ movie Mulan?—Yes, it’s ________ exciting action movie.A.a, an B.the, the C.the, an【答案】C【解析】【详解】句意:——你看过《木兰》这部电影吗?——是的,它是一部令人激动的动作电影。
初中英语-冠词专项练习习题及答案解析一、初中英语冠词1.The ruler is ________ useful tool when we draw a line.A.an B.a C.the D./【答案】B【解析】【详解】句意:当我们划线的时候尺子是一个有用的工具。
考查冠词。
an不定冠词,一,用在以元音音素开头的单词前;a不定冠词,一,用在以辅音音素开头的单词前;the定冠词,表特指,根据后面的“useful tool”可知,应用不定冠词表泛指,排除C和D,useful是以辅音音素开头的单词,所以用不定冠词a,排除A,故选B。
2.—What color is it?—It’s ________ orange. It’s ________ orange coat.A.a; an B.an; an C./; an【答案】C【解析】【详解】句意:——这是什么颜色?——是橙色的。
这是一件橙色外套。
考查冠词。
第一空在作表语的形容词前无需冠词;第二空限定其后单数可数名词coat,表泛指的“一件”,要用不定冠词a/an;又因为orange以元音音素发音开头,所以用an,故选C。
3.Boys and girls, it’s my ________ honor to share my teaching experience with you in the past four years. Wish you good luck in the future.A.an B.a C./【答案】C【解析】【分析】【详解】句意:同学们,很荣幸能与你们分享我过去四年的教学经验。
祝你未来好运。
考查冠词。
an不定冠词,用于元音音素前;a不定冠词,用于辅音音素前;/零冠词。
根据“my”可知,当名词前有其他修饰词时,不需要用冠词,因此选项C符合句意。
故选C。
4.Spending __________ Christmas in a foreign country with local people was really _________ unforgettable experience for me.A./, an B./ ; / C.the, an D.the; an【答案】A【详解】句意:在国外和当地人一起度过圣诞节对我来说是一次非常难忘的经历。
初中英语-冠词专项练习习题及答案解析一、初中英语冠词1.—What did you buy yesterday, Lucy?—I bought ________ umbrella. ________ umbrella is very nice.A.an, The B.a, A C.a,The D.an, An【答案】A【解析】【分析】【详解】句意:——Lucy,你昨天买了什么?——我买了一把雨伞,那把雨伞很好。
考查冠词。
a/an是不定冠词,表示泛指,a用于辅音因素开头的单词前面,an用于元音音素开头的单词前面;the是定冠词,表示特指。
第一空表示泛指一把雨伞,umbrella是元音因素开头的单词,故填an;第二空表示特指前面的那把雨伞,故填the。
故选A。
2.Peter lost ________ English book. The English book is new.A.a B.an C.the【答案】B【解析】【详解】句意:彼得丢了一本英语书。
这本英语书是新的。
考查冠词。
a不定冠词,修饰辅音音素开头的单词;an不定冠词,修饰元音音素开头的单词;the定冠词,表示特指;此处是泛指一本英语书,应用不定冠词修饰,English是元音音素开头的单词,应用an修饰,故选B。
3.Many people think that 2012 is one of ________ most successful films.A.a B.an C.the D./【答案】C【解析】【详解】句意:很多人认为《2012》是最成功的电影之一。
考查冠词。
a不定冠词,表泛指,用于以辅音音素开头的单词前;an不定冠词,表泛指,用于以元音音素开头的单词前;the定冠词,表特指。
“one of + the +形容词最高级+名词复数”为固定结构,意为“是……中最……之一”,符合句意,故选C。
4.—Why do you like Mary?—Because she is ________ honest girl.A.a B.an C.the D./【答案】B【解析】【详解】句意:——你为什么喜欢玛丽?——因为她是一个诚实的女孩。
初中英语-冠词专项练习(精选习题及答案解析)一、初中英语冠词1.There is ________ ancient Chinese story about a giant man named Kua Fu who chases the sun.A.a B.an C.the D./【答案】B【解析】【分析】【详解】句意:中国古代有个故事,讲的是一个名叫夸父的巨人追太阳。
考查冠词。
根据“ancient Chinese story”可知,单数名词story前需用不定冠词修饰,表示“一个古老的中国故事”,ancient是元音音素开头的单词,所以用不定冠词an。
故选B。
2.There is _______ umbrella in the corner of the room. Whose is it?A.an B.the C.a D./【答案】A【解析】【详解】句意:房间的角落里有一把雨伞。
它是谁的?考查冠词辨析。
此处表示“一把雨伞”,umbrella是以元音音素开头的单词,用不定冠词an 修饰,故选A。
3.________ girl called Lupita is my best friend and she is ________ energetic girl.A.A; an B.The; / C.A; / D.The; an【答案】D【解析】【详解】句意:这个名叫卢比塔的女孩是我最好的朋友,并且她是一个充满活力的女孩。
考查冠词用法。
第一空特指这个名叫卢比塔的女孩,应用定冠词the;第二空泛指她只是一个充满活力的女孩,应用不定冠词a/an,energetic [ˌenərˈdʒetɪk]是以元音音素开头的单词,应用an。
故选D。
4.Henry is fond of playing ________ piano while Alice likes listening to ________ music. A./; the B./; / C.the; / D.the; the【答案】C【解析】【详解】句意:亨利喜欢弹钢琴,而爱丽丝喜欢听音乐。
初中冠词练习题附答案解析一、初中英语冠词1.—How about ________ charity show?—I should say it was ________ success.A.the; a B.the; / C.a; a D.a; /【答案】A【解析】【详解】句意:——这个慈善表演怎么样?——我得说这是一个成功的表演。
考查冠词。
the那个,表示特指;a一个;第一空表示说话的双方都知道的那个慈善表演,因此用定冠词the修饰;第二空表示这是一个成功的表演,因此用不定冠词a修饰,故选A。
2.I have ________ uncle. He likes telling stories to me.A.a B.an C.the【答案】B【解析】【详解】句意:我有一个叔叔。
他喜欢给我讲故事。
考查冠词。
由语境可知,此处泛指“一个叔叔”,用不定冠词,且uncle以元音音素开头,用an。
故选B。
3.We should have _______ apple every day to keep healthy.A.a B.an C.the D./【答案】B【解析】【详解】句意:我们应该每天吃一个苹果来保持健康。
考查冠词。
a是不定冠词,表示泛指,用于以辅音音素开头的单词前;an是不定冠词,表示泛指,用于以元音音素开头的单词前;the是定冠词,表示特指;/不填。
根据题干可知,这里是泛指一个苹果,而且apple是以元音音素/æ/开头的,因此用an修饰。
故选B。
4.I interviewed some students from grade 7 who spend ________ average of one hour reading every night.A.a B.an C.the D./【答案】B【解析】【详解】句意:我采访了一些7年级的学生,他们平均每晚花一小时阅读。
考查冠词。
a/an通常表示数量“一”,泛指任意一个人或一件事,也可以表示一类人或事物,a用于辅音音素开头的可数名词单数前,an用于元音音素开头的可数名词单数前;the“这(些),那(些)”,表示特指。
初中冠词练习题附答案解析一、初中英语冠词1.There is ________ “C” and ________ “R” in the word “color”.A.a; an B.a; a C.an; a D.an; an【答案】A【解析】【详解】句意:在color这个词里有一个C和一个R。
考查冠词的用法。
两处均表示泛指,“C”首字母发辅音音素,用a;“R”首字母发元音音素,用an。
故选A。
2._________ Browns were having dinner when the telephone rang.A.The B.A C.An D./【答案】A【解析】【详解】句意:电话响的时候,布朗一家人正在吃晚饭。
考查冠词的用法。
不定冠词a/an表示泛指;定冠词the表示特指。
此处考查定冠词the的另一个用法,“the+姓氏复数”表示“……的一家人”,“the Browns”表示“布朗一家人或布朗夫妇”。
故选A。
3.He is now studying ________ history in ________ university.A./; an B.the; the C./; a D.the; /【答案】C【解析】【详解】句意:他现在在一所大学学习历史。
考查冠词词义辨析。
a,an不定冠词,泛指“每一”;a常用在以辅音音素开头的单词前;an 常用在以元音音素开头的单词前;the定冠词,表示特指。
第一空根据“history”可知,学科前不加冠词;第二空“university”是以辅音音素开头的单词,因此前面是a。
故选C。
4.—Is there ________ clock in your room?—Yes, there is.A.a B.an C.the D./【答案】A【解析】【详解】句意:——在你的房间有一个钟表吗?——是的,有。
考查冠词用法。
根据句意可知,应用a/an表示泛指“一个”。
clock/klɑːk/是以辅音音素开头的单词,应用a。
初中英语-冠词专项练习(精选习题及答案解析)一、初中英语冠词1.—What do you think of the movie The Battle of Chosin(《长津湖》)?—Oh, I like it. I don’t think I will see ________ one.A.the better B.a better C.a best D.the best【答案】B【解析】【详解】句意:——你觉得电影《长津湖》怎么样?——哦,我喜欢。
我想我不会看到更好的了。
考查形容词比较级。
这里是将来的电影与《长津湖》比较,应用比较级,表示泛指的一部电影,应用不定冠词a,a better one 泛指的“更好的一个”。
故选B。
2.—What color is it?—It’s ________ orange. It’s ________ orange coat.A.a; an B.an; an C./; an【答案】C【解析】【详解】句意:——这是什么颜色?——是橙色的。
这是一件橙色外套。
考查冠词。
第一空在作表语的形容词前无需冠词;第二空限定其后单数可数名词coat,表泛指的“一件”,要用不定冠词a/an;又因为orange以元音音素发音开头,所以用an,故选C。
3.—It’s said that your classmate is ________ European.—Yes, and you can’t believe how ________ 11-year-old boy can study abroad alone.A.a; an B.an; an C.a; a D.an; the【答案】A【解析】【详解】句意:——据说你同学是个欧洲人。
——是啊,你无法想象一个11岁的男孩怎么能独自出国留学。
考查冠词。
a/an为不定冠词,表泛指,a用于辅音音素发音开头的单词前,an用于元音音素发音开头的单词前;the为定冠词,表特指。
初中英语冠词专项训练及答案含解析一、初中英语冠词1.—Is Rome ________ European city?—Yes. It is one of the most beautiful cities in ________ Italy.A.a; the B.a; / C.an; the D.an; /【答案】B【解析】【分析】【详解】句意:——罗马是一个欧洲的城市吗?——是的。
它是意大利最漂亮的城市之一。
考查冠词的用法。
a不定冠词,表泛指,用于辅音音素开头的单词或字母前;an不定冠词,表泛指,用于元音音素开头的单词或字母前;the定冠词,表特指。
第一空,European 为以辅音音素开头的单词,用不定冠词a修饰;第二空,Italy为国家名,是专有名词,其前不用冠词修饰。
故选B。
2.As ________ university student, I was moved by ________ movie My Motherland and Me. A.a, the B.an, the C.the, a D.the, an【答案】A【解析】【详解】句意:作为一名大学生,我被电影《我的祖国和我》感动了。
考查冠词用法。
a不定冠词,表示泛指,用于辅音音素前;an不定冠词,表示泛指,用于元音音素前;the定冠词,表示特指。
根据句意可知第一空应用不定冠词,university是以辅音音素开头的单词,故用a。
movie和My Motherland and Me是同位语关系,所以用the 特指这部电影,故选A。
3.Do you think ________ boy called Pedro is ________ honest one?A.a; the B.the; a C.a; an D.the; an【答案】D【解析】【详解】句意:你认为这个叫佩德罗的男孩是一个诚实的孩子吗?考查冠词的用法。
第一个空后有定语“called Pedro”修饰,所以此处表特指这个叫佩德罗的男孩,故第一个空填the;第二个空表示泛指“一个诚实的孩子”,又因为honest[ˈɒnɪst] ,第一个因素为元音音素,故填an。
(完整)初中冠词练习题含答案一、初中英语冠词1.There is map of China on the wall in my room.A.a B.an C.the D./【答案】A【解析】【详解】句意:在我房间的墙上有一张中国地图。
考查冠词辨析。
a一个,泛指,用于辅音音素开头的单词前;an一个,泛指,用于元音音素开头的单词前;the特指。
根据语境可知,表示“一张地图”应用泛指,且map为辅音音素开头,用a,故选A。
2.When I drove at ________ high speed, a little cat was suddenly ________ my way.A.a; in B./; by C./; in D.a; on【答案】C【解析】【详解】句意:当我高速开车时,一只小猫突然挡住了我的路。
考查固定搭配和介词短语。
at high speed高速,第一空不填冠词,排除AD;by the way顺便说一下,in one’s way挡住某人的路,第二空用in,排除B。
故选C。
3.The patients (病人) of COVID-19 often have ________ cough and they need to get ________ X-ray.A.an; a B.a; a C.a; an D.the; a【答案】C【解析】【分析】【详解】句意:COVID-19患者经常咳嗽,需要做x光检查。
考查冠词辨析。
an是不定冠词,修饰单数名词表泛指,用于以元音音素开头的单词前面;a是不定冠词,修饰单数名词表泛指,用于以辅音音素开头的单词前面;the是定冠词,表特指。
have a cough意思是“咳嗽”,是固定短语,可知前空填a;X-ray以元音音素开头,需用an修饰。
故选C。
4.In Chinese, ________ date 5.20 has a similar pronunciation to “I love you”, making it________ lucky and romantic day.A.a; a B.a; the C.the; a D.the; the【答案】C【解析】【详解】句意:在汉语中,5月20日与“我爱你”发音相似,使它成为幸运和浪漫的一天。
初中英语冠词专题训练附答案解析一、初中英语冠词1.I think ________ history is ________ interesting subject.A.a; a B./; / C./; an【答案】C【解析】【详解】句意:我认为历史是一门有趣的学科。
考查冠词。
学科前一般不用冠词,故第一空不填;第二空表泛指,且interesting以元音音素开头,故第二空用an。
故选C。
2.There is _______ umbrella in the corner of the room. Whose is it?A.an B.the C.a D./【答案】A【解析】【详解】句意:房间的角落里有一把雨伞。
它是谁的?考查冠词辨析。
此处表示“一把雨伞”,umbrella是以元音音素开头的单词,用不定冠词an 修饰,故选A。
3.—Although you failed three times, I hope you can have________ try.—I will, thanks.A.the fourth B.a fourth C.a fifth D.the fifth【答案】B【解析】【详解】句意:——尽管你失败了三次,我希望你能再尝试一次。
——我会的,谢谢。
考查数词的用法。
the +序数词,意思为“第几”,a +序数词,意思为“再次”(其含义为,在前面已经出现的次数上再增加一次)。
根据句意可知此处指再尝试一次,根据“three times”可知这是第四次,故选B。
4.________ man with ________ iPhone 12 in his hand looks very cool.A.The; an B.The; the C.A; an D.A; the【答案】A【解析】【详解】句意:手拿一部iPhone 12的男人看起来非常酷。
考查冠词用法。
the这个,定冠词,表特指;an一个,不定冠词,表泛指,用于元音音素前;a一个,不定冠词,表泛指,用于辅音音素前。
初中英语冠词专项练习题、单项选择1. We work five days ________ week.A. aB. anC. theD. /2. __ book on the desk is ___ useful one.A. The; anB. A ; aC. The ; aD. The ; /3. We can't see ___ sun at ___ ni ght.A. a; /B. a; theC. the; /.D. the; the4. After ______ s upper, he stayed at home and played _______ pia no.A. the; theB. /; theC. /; aD. /; /5. I have two dogs. ___ black one is two years old and ___ yellow one is three years old.A. A; aB. The; aC. The; theD. A; the6. I've tried it three times. Let me try ______ fourth time.A. aB. anC. theD. /7. In the word "poridge" ___ "r" is lost.A. theB. anC. aD. /8. En glish is __ u seful la nguage in ___ world.A. an; theB. a; theC. the; theD. an; an9. __ new bridge has bee n built over __ Huan gpu River.A. The; aB. A; /C. A; theD. An; an10. This is __ oran ge. __ orange is on the table.A. a; TheB. an; TheC. an; AnD. the; An11. -Have you see n __ bag? I left it here just now. -Is it _____ o ne on the chair n ear the door?A. a; aB. the; theC. a; theD. the; a12. I have __ blue coat.A. aB. anC. theD. some13. She lear ned to play ____ pia no all by herself.A. aB. anC. theD.不填14. They passed our school ______ d ay before yesterday.A. anB. oneC. aD. the15. ___ w oma n over there is ___ popular teacher in our school.A. A; anB. The; aC. The; theD. A; the16. This is ____ i n teresti ng story-book and it is also ___ useful one.A. a; aB. an; anC. an; aD. a; an17. The museum is quite far. It will take you half __ hour to go there by _____ bus.A. an; /B. an; aC. a; /D. /; /18. Bill is ___ En glish teacher. He likes playi ng ______ football.A. a; theB. an; theC. a; /D. an; /19. Sha nghai is in ____ east of Chi na. A. / B. an C. the D. a20. Beiji ng is _____ beautiful city. It's _____ capital of China.A. a; aB. the; theC./; theD. a; the21. Bill had ___ a pple in one hand and ____ orange in the other.A.a , aB.a n , anC.a , theD.the , the22. Is there ___ "s"in the end of the word?A.a nB.aC.theD. /23 My brother will be back in half ___ hour.A.aB.theC.a nD.o ne24. The word "your" has ___"y",___"o"___"u"a nd ___"r"in it.A.a, a, an, aB.a , an , a , aC.a , an , a , anD.an , an , a , a25. This is __ usefull book for begi nners in ___ En glish.A.a , anB.a , >C.a , aD.the , the26. —What do you want to be in the future, Nick?—1 want to be ____ pilot. It is _____ excit ing job.A. a; aB. a; anC. the; an D, a; the27. He is ___ uni versity stude nt.A.aB.a nC.theD. /28. En glish is __ I an guage. It is __ importa nt tool.A.a ,aB.a, anC.the,a nD.a , >29..lt took me ___ h our and ____ half to finish _ work.A.a,a,aB.a n,an ,theC.a n,a,theD.a n,a, >30. John can play ____ guitar, but he can 'play _______ c hess.A. the;/B./;theC. the; the31. There is ____ b ridge over there. ___ bridge is made of wood.A.the,TheB.a,AC.the,AD.a, The32. Shut ____ door,please.A.theB.aC.anD. >33. __girl in __Grade Three is __ tallest in our school.A.The,the,theB.A,a,aC.The,浙eD.A, >a34. __ moon moves around ___ earth,a nd they both are smaller tha n __ sun.A.The,an,aB.A,the,theC.各 % >D.The,the,the35. __ Brow ns are sitti ng at __ breakfast table.A. XaB.The, >C.The ,theD. ^the36. He does read ing aloud in En glish in ___ morning.A.aB.the D.These D./37. __ young should care for help ____ old.A.The,aB.The,theC.A,aD.A,the38. The city lies on ___ Yan gtzi River.A.theB.aC./D.a n39. It's not __ good idea to drive for four hours without ____ break.A. a; aB. a: theC. the; aD. the; the40. He works late at __ ni ght.A.theB.aC./D.a n41. They are all ___ soliders.A.theB.theseC./D.those42. Have you any ____ story-books?A.theB.aC.a nD./43. He does n't have __ lunch at home.A.aB.theC./D.that44. __ Read ing no vels is very in structive.A.TheB.AC./D.A n45. They go to school by __ bike.A.theB.aC./D.this二.冠词填空:在下列句中空白处填入适当冠词,不需用冠词处划x。
1. There is _____ picture of ________ elepha nt on _____ wall.2. This is _____ useful book .I've read it for ______ hour.3. ______ e lepha nt is much heavier tha n ______ h orse.4. ______ d octor told him to take _______ medic ine three times ______ day.5. Let's go out for _____ walk.6.1 t's too hot.Open ______ door,please.7. There is _____ woma n over there. _______ w oma n is Meimei's mother.8. ______ s un rises in _______ east.9. ______ C han gjia ng River is ______ I on gest river in ______ China.10. Are you going to do it _____ sec ond time?11. Washi ngton is _____ capital of ________ U SA.12. ______ T urners are living at the end of ______ Turner Street.13. He joined the army in _____ spri ng of _______ 1995.14. ______ old man is ________ t eacher.He likes playing ________ basketball after _________ supper.15. After I had _____ quick breakfast ,I hurried to school.16. Are______ sheep kept by _______ farmers for produci ng _______ wool and _______ meat?17. They went to ______ People's Park,but we both went to _______ People's Cinema yesterday.18.1 ofte n watch ______ TV in _______ e vening.19. ______ d ay of _______ December 20,1999 is Mon day.20. Tomorrow is ______ Christmas Day and my father and I went to choose ______ Christmas tree today.21.1 think ______ maths is more importa nt tha n any other subject.22. He ofte n goes to _____ school by ________ b ike.23. What does this ____ word mean ,________ Father?24. What _____ importa nt n ews!数词1. __________________ —Is this your visit to my hometow n,Zunyi?—No.l've bee n here for many times.A.oneB.the firstC.first2. All the visitors live on ____ floor.A. twoB. sec ondC. the sec ond3. Now, everybody, please turn to Page ________ a nd look at the ________ p icture.A. Fifth; fiveB. Five; fifthC. Fifth; fifthD. Five; five4. I don ' t believe th is _______ boy can paint such a nice picture.A. five years oldB. five-years-oldC. five-year-old5. Football is so excit ing that ____ p eople in the world play it.A. millio n ofB. millio ns ofC. two millio ns of6. There are over stude nts in their school.A. hun dredsB. nine hun dredsC. hun dreds ofD. nine hun dred of the land is covered with trees and grass in Pin gjia ng, Yueya ng.A. Three fivesB. Three fifthsC. Three fifth13. The teacher said that__ of the boys would take part in the tale nt show. A. three five B. three fives C. thirds fifths14. — Which is the biggest nu mber of the four? 15. — Excuse me, how can I get to the museum?16. For breakfast, I usually have _____ a nd two pieces of bread. A. a cup of mild half B. half a cup of milk C. a half milk cup D. half a milk cup17. July 1st of this year is _____ birthday of CPC (中国共产党).A. ninetyB. the ninetyC. the nin etieth18. Ka ngka ng is a school boy. He got a good gift on his _of bus in ess letters are writte n in En glish. B. two thirds C. two three C. sec ond three 20. — How ofte n do you exercise? A. Two B. Twice C. Sec ond21. Look at the table .Ha n Fang wants to buy two pieces of bread ,a bottle of orange juice and an ice cream .How much will she pay? A. Five yua n and eightee n fen B. Six yuan and twenty fen C. Seven yua n and twenty fen D. Eight yua n and twelve fen22. The nu mber of the stude nts in our school is about nine _ . ___ of them are boys. A. hun dred; Two thirds B. hun dred; Two third C. hun dreds; Two thirds D. hun dreds; Two third23. ________ __________________________ o f the land in that district covered with trees andgrass .A . Two fifths ; isB . Two fifth ; areC . Two fifth ; isD . Two fifths ; are 24. I think _____ o f the materials I listened to at the beginning of the exam ______ easy.7.8. September isA. ninthmonth of the year. B. nineC. the nineD. the ninth9.— How was your day off yesterday?—Perfect! It was my grandma ' _________ b irthday. We had a big cake. A. eightyB. eightiethC. the eightiethst year, I visited a chemical factory in Baise, there are aboutA. six thousa ndsB. six thousa ndC. six thousa nds ofworkers in it. D. six thousa nd of12. About of the stude nts in our class were born in theA. two-thirds, 1990sB. two-thirds, 1990C. two-third, 1990sD. three fifthsA . One-thirdB . Two-thirdsC . A halfD . A quarter --Sorry. It's my time to he here. A. one B. first C. once birthday.A. fourtee nthB. fortiethC. the fortieth19.Nowdays . A. two thirdA. three fourths, isB. third four, areC. three fourths, areD. three fourth, areI got a good present on my ___ birthday.A. nineB. ninthC. the nineD. the ninth25. Nearly ____ of the earth ______ covered by sea 。