第一篇：詞性練習(xí)題

詞性練習(xí)

從詞性來(lái)看，可以分成：

實(shí)詞：名詞、動(dòng)詞、形容詞、數(shù)詞、量詞和代詞。虛詞： 副詞、介詞、連詞、助詞和語(yǔ)氣詞。實(shí)詞：意義較實(shí)在，能獨(dú)立充當(dāng)句子成分； 加上一定的語(yǔ)氣語(yǔ)調(diào)，一般可獨(dú)立成句。1.名詞：表示人或事物名稱的詞。

有人物名詞： 有事物名詞： 有時(shí)間名詞： 有方位名詞： 2.動(dòng)詞：表示動(dòng)作行為及發(fā)展變化的詞

有行為動(dòng)詞：

有發(fā)展動(dòng)詞：

有心理動(dòng)詞： 有存現(xiàn)動(dòng)詞： 有使令動(dòng)詞： 有能愿動(dòng)詞： 有趨向動(dòng)詞： 有判斷動(dòng)詞： 3.形容詞，表示事物性質(zhì)、狀貌特征的詞。

有表形狀的：

有表性質(zhì)的：

詞性練習(xí)

有表示狀態(tài)的： 4.數(shù)詞，表示事物數(shù)目的詞。

有確數(shù)： 有概數(shù)： 有序數(shù)： 5.量詞，表示事物或動(dòng)作的單位。

有名量詞：

有動(dòng)量詞： 6.代詞，能代替事物名稱的詞。

有人稱代詞： 有疑問(wèn)代詞：

有指示代詞： 虛詞，沒(méi)有實(shí)在意義的詞。

1.副詞，經(jīng)常用在動(dòng)詞、形容詞前面，表示程度、范圍、時(shí)間、否定、語(yǔ)氣、頻率等。

有程度副詞： 有時(shí)間副詞： 有范圍副詞：

有情態(tài)副詞：

有語(yǔ)氣副詞：

有重復(fù)副詞： 2.介詞，用在名詞、代詞或名詞性詞組前邊,合起來(lái)表示方向、對(duì)象等的詞。

①表示對(duì)象、關(guān)系的

詞性練習(xí)

②表示處所、方向的 ③表示時(shí)間的 ④表示狀態(tài)方式的 ⑤表示原因的 ⑥表示目的的 ⑦表示比較的 ⑧表示排除的 介詞口訣： 自從以當(dāng)為按照，由于對(duì)于為了到；

和跟把比在關(guān)于，除了同對(duì)向往朝；

用在名詞代詞前，修飾動(dòng)形要記牢。

3.連詞，連詞是用來(lái)連接詞與詞、詞組與詞組或句子與句子、表示某種邏輯關(guān)系的虛詞。并列連詞： 和、跟、與、同、及等。承接連詞： 至于、說(shuō)到、此外、如、比方等 轉(zhuǎn)折連詞： 卻、只是、不料、豈知等。因果連詞： 因?yàn)椤⒂捎?、因此、以致等。選擇連詞： 或、抑、非…即、不是…就是等 假設(shè)連詞： 如果、假如、假使、倘若、要是等 讓步連詞： 雖然、固然、盡管、縱然、即使等 感受詞性

1、他的一生自然使我想起了《論語(yǔ)》中孔子同他的弟子的一段對(duì)話。

2、那個(gè)戴墨鏡的人靜靜地等待著，還不時(shí)用指尖輕輕地敲著桌面。

第二篇：高中英語(yǔ)詞性練習(xí)題

33.We are all pleased to hear that the _________ went on very well.(operate)34.The children in this kindergarten have been trained to take care of _________ though they are only six years old.(they)35.Could you tell me who will give us a ___________ on children’s education?(speak)36.This cartoon film is _________ than the one I saw last Saturday.(fun)37.The twin sisters used to be __________ in Hollywood.(act)38.Actions speak more _____ than words.(loud)39.I am _______ about my schoolwork because I haven't worked hard this term.(worry)40.Your pet dog is so __________ that all of us like to play with it.(love)41.It has been snowing ___ for a whole day.(heavy)42.We have been told the ______ of the case.(true)43.Have you made your ________ yet?(decide)44.People from Italy are called ___________.(Italy)45.I _________ where he comes from.(wonderful)46.The weather in April is _________, so you’d better take more clothes with you.(change)47.Ferries come and go on the river as ___________ as boats.(quick)48.Listen, everybody, we will meet at the ________ of the cinema at 4 pm.(enter)49.You cannot eat so much fast food, because it is ___________.(health)50.It is reported that three __________ have been put into prison.(Canada)51.We saw her running _________ the street just now.(cross)52.Do English people shake hands as often as _______?(Germany)53.We all know that there’s no _________ thing on the moon.(live)54.In order to make the trip ____________ for his children, Mr.Green kept the name of the destination(目的地)a secret.(excite)55.A _________ team from China will arrive in America next week.(medicine)56.This morning I lost my handbag and this afternoon I fell off my bike and broke my leg.I think it is an __________ day.(luck)57.Many students are not able to pay their college ________.(expensive)58.British people eat a large number of.(potato)59.She seems an __________ girl.(honesty)60.We tried all sorts of __________, but they were all useless.(medical)61.The digital camera is one of the __________ of the modern science.(wonderfully)62.I would’ do business with such a __________ man.(fool)63.Carl looks much ________ than before.(health)64.I was _________ to meet Jane in a foreign country.(surprise)65.The mother was _________ to the brave man who had saved her son.(thank)66.I happened to meet a group of __________ on my way home yesterday.(France)67.The little boy can run a marathon in __________ than three hours.(little)68.I was told that my class teacher’ daughter would leave __________ school this July.(second)69.It’ a _________ to have a picnic with all the family members.(please)70.The lost calculator has been returned to its __________.(own)71.Be sure to let me know whenever you are in __________.(dangerous)72.The completion of the big bridge made every one of us _________ and happy.(exciting)73.The __ is not so good as we expected.(perform)74.What a __________ day it is today!Shall we go to have a picnic in the countryside?(sun)75.The tall _________ is one of my father’s best friends.(art)76.Have you decided to take the headmaster’ __________?(advise)77.Even __________, he lost his job.(bad)78.Please answer the ________ questions.(follow)

118.The monkey looked at ___________ in the mirror.(it)119.I wondered whether the bag was that __________.(lady)120.The shopping centre is always _________ of customers at weekends.(fill)121.I helped the old man to show my ______.(kind)122._____ is more important than wealth.(healthy)123.Nothing is _________ if you set your mind to it.(possible)124.The sun is shining ________.Let’s go for a picnic.(bright)125.Don’t hesitate to ask if you have any ________ when doing your homework.(difficult)126.My mother is always busy __________ the clothes in the evening.(wash)127.The doctors were always busy operating on the __________ soldier in the field hospital.(injur)128.Liz is much _______ than her twin sister.(thin)129.Please write down the _________ idea of this text.(mainly)130.It’s our responsibility to save water and ____________.(electrical)131.English has more __________ who learn it as a second language than Chinese.(speak)132.English is a __________ language.It makes peoples in the world understand each other better than ever.(use)133.Although he worked hardest, he got the ___________ money of all.(little)134._________ should obey the traffic rule.(drive)135.My mother is a hard-working _____.(business)136.About twenty ___________ will come to visit our school this coming Saturday.(Australia)137.WHO means World Health ________.(organize)138.I felt _________ sorry for having missed such a wonderful football match.(truth)139.We should throw rubbish into litter bins so as not to _______ the city.(pollution)140.Our language lab is on the __________ floor of the classroom building.(four)141.“Stop them!They are __________,” an old man shouted.(thief)142.After a long __________, they got the solution to the problem.(discuss)143.We hope our country will become more and more ________.(power)144.Paris is the capital of _____ , isn’t it?(French)145.Tom is better at _________ than anyone else in the class.(swim)146.Mary ________ playing the piano for two hours every day.(practice)147.Yao Ming is a famous _________ basketball player.(profession)148.My mother is very ___________ though she is only forty.(forget)149.___________ does a lot of harm to others as well as the smoker himself.(smoke)150.American people usually have the ___________ turkey at Christmas.(tradition)151.The _____ light suddenly went out.(electricity)152.Who can tell me the___ of the Himalaya?(high)153.When autumn comes, _________ fall off trees.The ground is always covered with them.(leaf)154.These old cans are kept for _______.(recycle)155.Many ________ are waiting for the famous dancer at the airport.(report)156.Mary’s brother works as a __________ in the restaurant.(wait)157.The man saved the little girl from the fire and took her to ________.(safe)

158.An American _______ said last week that there was enough water for life on Mars.(science)159.The Forbidden City will be ___________ in the following years.(build)160.Never be afraid of __________ face if you want to make progress in your spoken English.(lose)161.John found his former friends were as __________ to him as before.(friend)162.No one else can dance ___________ than the girl in red.(beautiful)163.Could you tell the __________ between the three sisters?(different)164.Taxi ________ are developing very fast in modern cities.(serve)165.You’d better not swim in the river.The water has been __________ polluted.(serious)166.I have received an ___________ to her birthday party.(invite)167.Chinese will be _________ used in the world from now on.(wide)168.A few friends of __________ will come to our dinner party tonight.(we)169.The government will take action to improve the __________ in the poor areas.(educational)170.Many people in China are not familiar with ________ customs.(west)171.The music sounded quite __________ while the dance was not beautiful.(wonder)172.July is usually the __________ month in Shanghai.(hot)173.The room is so dirty that a lot of __________ can be seen running here and there.(mouse)174.Which do you want to do, go into business or become a ___________?(fire)175.I don’t think it a good idea.Do you want to listen to my ________?(suggest)176.What he said __________ us a lot.We wondered what had happened to him.(surprise)177.Nowadays ________ can be seen here and there.(foreign)178.His grandparents have been _________ for over ten years, but he’ll never forget the days with them together.(death)179.The song was so ________ that she didn’t notice the telephone ring.(enjoy)180.With the ___________ of e-book technology, probably an e-book library will appear.(develop)181.Everyone should take an ________ part in sports events.(activity)182.I have been to Nanjing once and this is my _________ time to see the Yangtze River there.(two)183.Maths is my ________ subject.(favour)184.On the way I saw an old man ____________ beside the road.(sit)185.He used to be a ____________.(farm)186.That’s _________ for the girl to be late today.She is always the first to get to school.(usually)187.Eating too many sweets is bad for ________.(tooth)188.His aunt takes good ______ of him when his mother is away.(carefully)189.My uncle is a travel agent.His job is to serve ________.(tour)190.Sorry, I can't lend my tape ____ to you.(record)191.The street has been _____ by the workers.(wide)192.It's rude to look ________ at a person.(straight)193.Busiest men find the ___________ time.(much)194.Few ________ could speak Chinese in the past.(English)195.There is no short-cut to _________.(succeed)196.Computer is an amazing ____ our life?(invent)197.Many ___ come to Disneyland every day.(visit)158.An American _______ said last week that there was enough water for life on Mars.(science)159.The Forbidden City will be ___________ in the following years.(build)160.Never be afraid of __________ face if you want to make progress in your spoken English.(lose)161.John found his former friends were as __________ to him as before.(friend)162.No one else can dance ___________ than the girl in red.(beautiful)163.Could you tell the __________ between the three sisters?(different)164.Taxi ________ are developing very fast in modern cities.(serve)165.You’d better not swim in the river.The water has been __________ polluted.(serious)166.I have received an ___________ to her birthday party.(invite)167.Chinese will be _________ used in the world from now on.(wide)168.A few friends of __________ will come to our dinner party tonight.(we)169.The government will take action to improve the __________ in the poor areas.(educational)170.Many people in China are not familiar with ________ customs.(west)171.The music sounded quite __________ while the dance was not beautiful.(wonder)172.July is usually the __________ month in Shanghai.(hot)173.The room is so dirty that a lot of __________ can be seen running here and there.(mouse)174.Which do you want to do, go into business or become a ___________?(fire)175.I don’t think it a good idea.Do you want to listen to my ________?(suggest)176.What he said __________ us a lot.We wondered what had happened to him.(surprise)177.Nowadays ________ can be seen here and there.(foreign)178.His grandparents have been _________ for over ten years, but he’ll never forget the days with them together.(death)179.The song was so ________ that she didn’t notice the telephone ring.(enjoy)180.With the ___________ of e-book technology, probably an e-book library will appear.(develop)181.Everyone should take an ________ part in sports events.(activity)182.I have been to Nanjing once and this is my _________ time to see the Yangtze River there.(two)183.Maths is my ________ subject.(favour)184.On the way I saw an old man ____________ beside the road.(sit)185.He used to be a ____________.(farm)186.That’s _________ for the girl to be late today.She is always the first to get to school.(usually)187.Eating too many sweets is bad for ________.(tooth)188.His aunt takes good ______ of him when his mother is away.(carefully)189.My uncle is a travel agent.His job is to serve ________.(tour)190.Sorry, I can't lend my tape ____ to you.(record)191.The street has been _____ by the workers.(wide)192.It's rude to look ________ at a person.(straight)193.Busiest men find the ___________ time.(much)194.Few ________ could speak Chinese in the past.(English)195.There is no short-cut to _________.(succeed)196.Computer is an amazing ____ our life?(invent)197.Many ___ come to Disneyland every day.(visit)198.________ he arrived there on time.(final)199.The reporter went to the sea with several _________ to look for the lost boat.(fish)200.She has gains much _____________ because she keeps eating but never exercises.(weigh)201.She’s busy writing a letter to a friend of ___________ in her study.(she)202.There are many places of ________ interest in Shanghai.(history)203.They __________ the woman into buying all the dresses in the shop.(foolish)204.Our teacher told us that it was a _______ change.(chemistry)205.It’s important for a student to tell the _______ after he does something wrong.(true)206.The doll was the present from my auntie on my _________ birthday.(five)207.The sun gives us light and ________.(hot)208.School will be over in a few _____time.(month)209.I can’t find my wallet.It has ________!(appear)210.My grandfather keeps in good _______ though he’s over eighty.(healthy)211.The Atlantic is the second ____________ocean in the world.(big)212.Mr.Marko is one of the __________ of that factory.(engine)213.It’s ten _________ walk from here.You needn’t take a bus.(minute)214.Many years ago this kind of TV set was very ____________.(expense)215.our teacher always tells us that __________ is power.(know)216.No one knows whether Bin Laden is still ___________ or not.(live)217.The man in the prison is looking forward to having __________.(free)218.We travelled to a beautiful and quiet village.There we spent a ____________ day.(pleased)219.Mr Black is a singer ________ thirty.(age)220.What is the ___________ of the word?(mean)221.The little girl said ___________ to the strange man.(soft)222.___________ hands is a kind of custom in some countries.(shake)223.Young boys enjoy watching football __________ on TV.(match)224.Jacky told us an ________ story that everybody laughed happily.(amusement)225.We were surprised at the news of his ____.(die)226.Thanks for _______ me.I’ll do my best.(choice)227.Jiang Wen is one of the most famous ___________ in China.(act)228.Bob _______ a story to explain why he was late for school.(inventor)229.Of all the boys, John runs the most ______________.(slow)230.This iron ball is much ______ than that one.(heavy)231.I'd like to have a talk with the ________ of this hotel.(manage)232.It’s ___________ cold tonight.(terrible)233.There are many __________ visiting the museum.(Japan)234.It’s much ___________ to swim with your friend than to swim alone.(safe)235.Take care!The vase can _______ be broken.(easy)236.There used to be a great ____________ between the two families.(friend)237.I’m afraid we cannot go fishing today.It’s quite ___________ outside.(wind)238.I’m poor at ________ and geography.(historical)

第三篇：初中語(yǔ)文詞性練習(xí)題

初中語(yǔ)文詞性練習(xí)題 初一語(yǔ)文語(yǔ)法知識(shí)練習(xí)

1．下列詞語(yǔ)中不都屬于名詞的一組是（）A.學(xué)生

魯迅

上午

左右 B.東西 星期一

英雄

黑板 C.風(fēng)箏

紅旗

保衛(wèi)

高興 D.巴金 思想 夏季

花朵 4.下列詞語(yǔ)都是動(dòng)詞的一組是（）A.學(xué)生

熱愛

跳舞 允許

B.討厭 上去 是 幫忙 C.支持

愛護(hù)

悠閑 憎惡

D.擴(kuò)大 思念 激動(dòng) 哪里 6.下列詞語(yǔ)都屬于形容詞的一組是（）A.美麗

鮮紅

洪亮

純樸 B.彎曲

愿意

明天 激動(dòng) C.筆直

回來(lái) 風(fēng)箏

渺小

D.快樂(lè)

要求

夏季 許多 7.找出詞性完全相同的一組（）

A．寶貴

光榮

驕傲

戰(zhàn)友 B．制造

報(bào)答

提高

尋求 C．角色

語(yǔ)文

經(jīng)常

興趣 D．非常

偶爾

清楚

風(fēng)景 8。選出詞類相同的一項(xiàng)。()A．肅穆 肅立

B.也許 立刻

C.聰明 智慧

D.欣然 果然

9、請(qǐng)將下列虛詞歸類。

A.副詞 B.嘆詞 C.介詞 D.擬聲詞

越發(fā)()除了（）始終（）依照（）沿著（）索性（）撲通（）哦（）屢次（）何必（）自從（）砰（）啊（）卻（）

9.對(duì)加點(diǎn)詞的詞性判斷完全正確的一項(xiàng)是（）

為了發(fā)展教育事業(yè)，十分需要人們了解，關(guān)心和重視它。A．名詞

動(dòng)詞

連詞

B．名詞

形容詞

介詞 C．代詞

副詞

介詞

D．動(dòng)詞

動(dòng)詞

介詞 3．與“為了祖國(guó)，前進(jìn)！”中加點(diǎn)詞的詞性相同的一項(xiàng)是（）A．因?yàn)槿硕?，屋子里很?/p>

B．小青在上海 C．我們按照程序嚴(yán)格把關(guān)

D．我和你一起走 5．下面各組中加點(diǎn)詞詞性相同的一項(xiàng)是（）

A．① 這朦朧的月光，實(shí)在照不了多遠(yuǎn)

② 月色便朦朧在水氣里

B．①掌握法律武器，增強(qiáng)禁毒意識(shí)

②朋友,你是否意識(shí)到你在幸福之中呢? C．①工作隨便，學(xué)習(xí)松懈

②剛才出力搖船那股勁兒，現(xiàn)在在每個(gè)人的身體里松懈下來(lái)了 D．①酒香不怕巷子深

②這本書的內(nèi)容很深，可真難懂

6．下列句子中加點(diǎn)詞與“老師正和小紅談話”中“和”的詞性相同的是（）A．他早點(diǎn)吃的是牛奶和面包

B．范進(jìn)向他作揖，坐下 C．我從此便整天的站在柜臺(tái)里，專管我的職務(wù)

第四篇：詞性轉(zhuǎn)換練習(xí)題

2017.1.22

一、英漢互譯 1.單詞

Level_________

native_________

boring_________ Comedy_________

meanwhile_________

subtle_________ Obvious_________

live_________

joke_________ Consider_________

account_________

option_________ Similarly_________

handle_________

strength_________ Effort_________

precious_________ assistance_________ 2.短語(yǔ)

幽默感_________

被看做_________ Be related to_________

tend to_________ Over and over again_________

have a good command of_________ 3.句子

因?yàn)槲宜苷f(shuō)的話全都是事實(shí)，所以我?guī)缀醣粍e人認(rèn)為是一個(gè)很無(wú)趣的人。

__________________________________________________________________________

在其他兩個(gè)主要說(shuō)英語(yǔ)的國(guó)家里，幽默感也是不一樣的。

_________________________________________________________________________ 她上了幾年的課而且努力練習(xí)，但是盡管她做了很多努力，她的聲音也沒(méi)有提升。_______________________________________________________________________________

作為一個(gè)外向的女孩，和同學(xué)們好好相處是我的強(qiáng)項(xiàng)。

_______________________________________________________________________________

二、填空

1.His ___________ sister is only one year older than he.(old)

2.The Smiths live on the __________ floor of the building.(nine)

3.All the great __________ are respected by the world.(invent)4.I’ll do my homework more __________ next time.(care)

5.When you study a foreign language, it’s important to make a good ______.(begin)6.I helped the old man to show my ______.(kind)

7.In the past punishment was decided by the university.The student had no _________ but to accept it.(choose)

8.Our teacher told us the _____ story I had ever heard.(sad)

9.What nice __________!Let’s put them on the walls of the meeting room.(paint)10.The old lady was too _______ to say a word.(frighten)

11.A ___________ sight stopped them from going forward.(frighten)12.Mary ________ playing the piano for two hours every day.(practice)13.The wind is blowing _______.It’s the right time to fly kites.(gentle)

14.The visitors are ________ students.(main)15,If you want to __________ in the future, you must work hard from now on.(success)16.Which one would you like to ____________ for your friend as the birthday gift, a CD or a pen?(choice)17.Our class teacher often __________ how we should fill in the form.(explanation)18.Joyce_______that we should think about the name of the newspaper a bit longer.(suggestion)19.It was amazing that the performance given by the children________(attraction)so many adults.

第五篇：英語(yǔ)詞性練習(xí)題

英語(yǔ)詞性練習(xí)題

1.Father goes to his doctor for ____ about his heart trouble.A.an advice

B.advice

C.advices

D.the advice 2.We work out the plan, and now we must put it into _____ A.fact

B.practice

C.reality

D.deed 3.We miss the last bus;I’m afraid we have no ___but to take a taxi.A.way

B.choice

C.possibility

D.selection 7.If by any chance someone comes to see me, ask them to leave a____ A.message

B.letter

C.sentenceD.notice 8.He has done some ____on that subject from various angles over the past ten years.A.research

B.a research

C.researches

D.the research 9.After dinner he gave Mr.Richardson ___ ride to___CapitalAirpot.A.the;a

B.a;the

C./;the

D./;a 10.It is often said that___teachers have___ very easy life.A./;/

B./;a

C.the;/

D.the;a 11.Mrs.Taylor has ___8-year-old daughter who has ___gift for painting---she has won two national prizes.A.a;a

B.an;the

C.an;a

D.the;a 12.John is ___university student.A.the

B.a

C./

D.an 13.Alice is fond of playing ___piano while Henry is interested in listening to ___ music.A./;the

B./;/

C.the;/

D.the;the 14.Many people agree that ___ knowledge of English is a must in ___international trade today.A.a;/

B.the;an

C.the;the

D./;the 15.Charlie Chaplin was considered one of the greatest actors in ___history of ___ cinema.A./;/

B.a;the

C.the;the

D.the;a 16.There are several pretty girls standing under the tree, but___are known to me.A.neither

B.none

C.no one

D.all 17.The gold watch had belonged to for years, but the police refused to believe it was ___.A.me

B.my

C.mine

D.I 18.You’d better by ____some fruits when you go on a trip.A.youself

B.myself

C.yourself

D.you 19.All girls wear beautiful clothes.Some are dressed in red;___in green.A.other

B.another

C.others

D.the other 20.In some restaurant, food and service are worse than ___ used to be.A.they

B.it

C.them

D.that 21._____ martyrs heroically lay down their lives for people.A.Thousand of

B.Thousands of

C.Many thousands

D.Three thousands 22._____of the earth is water.A.Three four

B.Three fourth

C.Three fourths

D.Three fours 23.Five hundred yuan a month ___ enough to live on.A.are

B.is

C.is being

D.has been 24.---How was your recent visit to Qingdao？

---It was great.We visited some friends, and spent the _______days at the seaside.A.few last sunny

B.last few sunny

C.last sunny few

D.few sunny last 25.Can you believe that ____ a rich country there should be ___ many poor people? A.such;such

B.such;so

C.so;so

D.so;such 26.He was hit by a bullet but ___he was only ____wounded.A.lucky;bad

B.luckily;badly

C.luckily;slightly

D.lucky;slightly 27.The boy looked ___, but his weak breath suggested that we was still ___.A.dying;alive

B.dead;living

C.dead;alive

D.dying;living 28.There must be ________ with the machine.A.something serious wrong B.wrong seriously something

C.something seriously wrong

D.wrong seriously something 29.---The new dress looks very nice___you.---Thank you.I’m glad you say so.A.for

B.at

C.in

D.on 30.The old lady___ a pair of thick glasses gets on the bus.A.in

B.having

C.with

D.on 31.We walked ___TAM square to the Monument ____the people’s heroes.A.across;to

B.across;of

C.through;for

D.pass;to 32.Although he is young, ___he can speak two foreign language.A.but

B./

C.and

D.however 33.My brother is favor of playing football, ___ my sister insists on going swimming.A.when

B.because

C.while

D.so 34.”Sugar___milk?”“Milk ___no sugar, thank you.”

A.or…but

B.and…but

C.or…and

D.and…and 35.You must get there on time, at six tomorrow, ___ we’ll leave without you.A.but

B.and

C.otherwise

D.for 36.We had not traveled very far across the channel ___ the engine failed and we had to float about on the sea.A.before

B.while

C.when

D.because