《2013年中考英语复习语法专题11主谓一致和倒装句.ppt》由会员分享,可在线阅读,更多相关《2013年中考英语复习语法专题11主谓一致和倒装句.ppt(68页珍藏版)》请在三一办公上搜索。
1、专题11主谓一致和倒装句,考点知识精讲,考点训练,知识网络考点一 主谓一致(一)语法一致语法一致是指主语和谓语在语法形式上取得一致,即主语是单数形式,谓语也采用单数形式;主语是复数形式,谓语也必须采用复数形式。,1以单数名词或代词作主语,谓语动词用单数。My brother is very tall.我弟弟很高。2主语为第三人称单数,或一些习惯用作单数名词或不可数名词的词,如money,information,clothing等,谓语动词用单数。3主语为单个的不定式(短语)、动名词(短语)或从句时,谓语动词一般用单数形式。Running is good for us.跑步对我们来说很有益处。注
2、:what引导的主语从句,后面的谓语动词多数情况下用单数形式,但如果表语是复数或what从句是一个带有复数意义的并列结构时,主句的谓语动词可以用复数形式。,4由连词and或both.and连接两个名词或代词作主语时,谓语动词通常用复数形式。Mike and Jack are good students.迈克和杰克是好学生。注:如果and所连接的两个词是指同一个人或物时,后面的谓语动词 就应用单数形式。由and连接的并列单数主语前如果分别有no,each,every,more than a/an,many a/an修饰时,其谓语动词要用单数形式。The writer and scientist
3、has come.这位作家兼科学家已经来了。,5主语后跟with,along with,together with,except,but,like,as well as,rather than,more than,besides,including等引 起的短语,谓语动词的数由前面主语的单复数来决定,不受短语的影响。Mr.Brown,together with his children,has come to China.布朗先生和他的孩子们一起来到了中国。6某些只有复数形式的名词,如trousers,clothes,glasses等作主语时,谓语动词用复数;如有单位量词时,谓语和单位量应保持
4、一致。His trousers are too long.他的裤子太长了。7“the number of复数名词”作主语时,谓语动词用单数形式。,The number of students in our class is fiftyfour.我们班学生人数为54人。注:“a number of复数名词”作主语时,谓语动词用复数形式。8主语为由some,every,any,no构成的复合代词,或由either,neither,each作主语时,谓语动词用单数。Everything goes well.一切顺利。9在定语从句中,关系代词that,who,which等作主语时,其谓语动词的数应与句
5、中先行词的数一致。She is one of my classmates who are working hard.她是我同学中学习十分努力的一个。,(二)意义一致意义一致是谓语动词的单复数要与主语意义上的单复数一致。即主语 形式上为单数,但意义为复数,则谓语动词用复数形式;若主语形式上为复数,但表示单数意义,则谓语动词用单数形式。1表示重量、时间、长度、价格、金钱等的复数名词作主语时,谓语动词常用单数形式。Ten years is a long time.十年是很长的一段时间。2集体名词,如family,group,class,population,team,public等作主语时,若看作一
6、个整体,其谓语动词用单数;若强调其中的每一个成员,则谓语动词用复数。,His family is a happy one.他家是个快乐的家庭。The whole family are having supper.全家人正在吃晚饭。注:police,people,cattle等集合名词作主语时,谓语动词要用复 数形式。The police havent caught the thief yet.警方还没捉住窃贼。3“some/the rest/all/most of the名词”等既可以修饰可数名 词,又可以修饰不可数名词,谓语动词的单复数由被修饰的名词决定。Some of the summer
7、 camps are in the countryside or on the lake.,其中一些夏令营扎在乡村或湖上。The rest of the money was given to him.剩下的钱都给了他。4分数或百分数作主语时,谓语动词要与它们所指代的名词的数一致。Two thirds of the work has been finished.工作已完成了三分之二。5“the形容词”作主语时,若表示一类人,谓语动词用复数形式;若表示抽象概念,谓语动词用单数。the姓氏名词复数表示“一 家人”或“夫妇”,当其在句中作主语时,谓语动词用复数形式。,The blind need mo
8、re help.盲人需要更多的帮助。The Greens are Americans.格林一家是美国人。6当主语是一本书或一条格言时,谓语动词常用单数。The Arabian Nights is an interesting book.天方夜谭是一本有趣的书。7以ics结尾的表示学科的名词,如physics,politics,mathematics(maths)等以及一些以s结尾的名词,如news,James等不可数名词或专有名词作主语时,谓语动词用单数。I think physics is easy.我认为物理很容易。The news is very important.这则消息很重要。,(
9、三)就近一致就近一致是指谓语动词的数与并列主语中最靠近它的那个主语保持一 致。1当两个主语由or,either.or.,neither.nor.,not.but.,not only.but also.,whether.or.连接时,谓语动词和它相邻的主语保持一致。Neither he nor I am going to Beijing.他和我都不去北京。2在there be句型中或以here等表示方位的副词开头的句子中,谓语动词be应与后面的名词保持一致。当后面的名词不止一个时,,be的人称和数应与和其最靠近的那个名词的人称和数保持一致。There are ten desks and a ch
10、air in the classroom.在教室里有10张课桌和1把椅子。考点二 倒装句英语句子的基本语序是比较固定的,一般主语在前,谓语在后。但有时因为语法结构的要求或由于修辞的要求,往往要改变句子的自然语序,把一些本应置于主语之后的成分提前,我们称这种语序为倒装语序。倒装语序又分为全部(完全)倒装和部分倒装。(一)全部(完全)倒装如果谓语动词全部放在主语之前,这种语序称为完全倒装。,1表示方位的副词out,up,down,in,away置于句首时,句子要全部倒装。Out rushed the children.孩子们冲了出去。注:一般情况下,当主语是人称代词时,主语的语序不倒装。Away
11、he went.他走了。2表示方位的介词短语置于句首时,句子要全部倒装。In front of the school is the hospital.在学校的前面就是医院。注:介词短语在倒装句中要整体前移,不能拆开。,3在以here,there等副词开头的句子里,要用全部倒装以示强调。Here comes the bus.公共汽车来了。注:以here,there等引导的句子中,谓语动词常为be,come,go等,且时态为一般现在时,如果主语是人称代词则不用倒装。Here they are.它们在这儿。4以表示时间的副词now,then引导的句子,谓语动词是come,begin,end,foll
12、ow,be等时,句子用全部倒装。Then came the workers.接着来的是工人。注:如果主语是人称代词,则不用倒装。Then he went.接着他走了。,(二)部分倒装如果只把助动词、情态动词或系动词be放在主语之前,这种语序称为 部分倒装。1否定副词never,hardly,seldom,little,not等置于句首时句子要部分倒装。Hardly could he believe his own eyes.他几乎不能相信自己的眼睛。2“only状语”置于句首时,要用部分倒装。Only in this way can you learn English well.只有用这种方法
13、,你才能学好英语。,注:only后接状语从句时,从句的语序不能倒装。Only when the war was over in 1918 was he able to get back home.直到1918年战争结束,他才重返家乡。3把副词so放在句首,表示前面所说的情况也适用于另一个人(或物),构成“sobe动词/助动词/情态动词主语”结构时,用部分倒装。Your sister is a nurse,so is my sister.你姐姐是护士,我姐姐也是护士。,注:当后者对前者所说的内容表示赞同或加以例证、强调时,用结构“So主语be动词/助动词/情态动词”表示,意为“的确如此”。Tom
14、 likes music.汤姆喜欢音乐。So he does.他的确如此。4把neither,nor放在句首,表示前面否定的内容也适用于另一个人(或物),构成“neither/norbe动词/助动词/情态动词主语”结构时,用部分倒装。Mary didnt go to school yesterday.玛丽昨天没去上学。Neither/Nor did I我也没去。,注:系动词be/助动词/情态动词在形式上与前一句的谓语保持一致,而其数则由后一句的主语而定。5not only.but also.连接并列的句子,前一部分倒装,后面部分不倒装;neither.nor.连接并列的句子,前后都倒装。Not
15、 only does he learn to speak English,but also he learns to write in English.他不但学说英语,他还学习用英语写作。注:如果置于句首的not only.but also.连接两个并列主语,则句子不用倒装结构。,Not only he but also I like football.不仅他而且我也喜欢足球。,主谓一致和倒装句(训练时间:50分钟分值:50分),1(2011广东)David,there _a dictionary and some books on your desk.Please put them away
16、.OK.Mum.Ill do it right away.Ais Bare Chas Dhave【解析】本题考查主谓一致。there be句型中若there be后列举了一系列人或事物,be动词形式要根据就近原则来确定,因句中there be后的第一个名词dictionary是单数,故选A。【答案】A,2(2011苏州)There are millions of websites on the Internet and there _ a lot of useful _on the websites.Aare;informations Bare;informationCis;informati
17、on Dis;informations【解析】本题考查名词及主谓一致。information是不可数名词,无复数形式,故排除A、D两项;在there be句型中,be动词的单复数应与后面的名词保持一致,当主语是不可数名词时,be动词用单数形式。【答案】C,3(2011衡阳)Do you like your new Tshirt?Yes.Not only I but also my mother _it.Alikes Blike Cdoesnt like【解析】本题考查主谓一致。not only.but also.意为“不但而且”,连接两个并列的名词或代词作主语时,谓语动词在人称和数上要和最近的
18、名词或代词保持一致。本句中,but also后的名词是第三人称单数,故排除B项;再由题意可知选A。【答案】A,4(2011新疆)There _a sheep and two cows on the farm eating grass.Aare Bis Chave Dhas【解析】本题考查主谓一致。there be句型不能与have/has连用,故排除C、D两项;there be句型中,当有两个或两个以上的名词作主语时,be动词应与最近的主语保持一致。本句中,与be动词邻近的主语是a sheep,故be动词用is。【答案】B,5(2011兰州)I have changed my job._.AS
19、o do I BSo have I CSo I do DSo I have【解析】本题考查倒装句。so助动词/连系动词be/情态动词主语,意思是“某人也是如此”;so主语助动词/连系动词be/情态动词,意思是“的确如此”。由句意“我已经换了份工作。”“我也是。”可知选B。【答案】B,6(2011乌鲁木齐)Did you go to Nancys birthday party last night?Yes,I did._.ASo did Tim BSo Tim didCTim did so DTim went so【解析】本题考查倒装句。“so连系动词be/助动词/情态动词主语”意为“也是如此”
20、,表示上文提到的情况也同样适用于后者。由答语句意“是的,我去了,蒂姆也去了”可知选A项。【答案】A,7(2011新疆)Many trees _already because a new hospital will be built here soon.Ahas cut down Bhas been cut downCcut down Dhave been cut down【解析】本题考查被动语态及主谓一致。主语trees和动词短语cut down之间是被动关系,故用被动语态。现在完成时被动语态的构成为“have/has been动词的过去分词”。主语是复数名词,因此助动词用have。故选D。【
21、答案】D,8(2011乌鲁木齐)There _going to be a basketball match this afternoon.Aare Bis Chave Dwill【解析】本题考查主谓一致及there be句型。there be句型的一般将来时为:there is/are going to be或there will be,句子的主语是单数 名词,故用is。【答案】B,9(2011黄冈)Which would you like,tea or coffee?Either _OK,but I prefer coffee _milk.Ais;with Bis;to Care;with
22、Dare;to【解析】本题考查主谓一致。either意为“两者中任何一个”,表单数概念,故谓语动词用is。后面一句的意思为“我更喜欢加牛奶的咖啡”,with表示伴随,故选A。【答案】A,10(2011芜湖)Zhou Ming likes reading English magazines._.Its good for English learning.ASo do I BSo am I CSo I do DSo I am【解析】本题考查倒装句。“so连系动词be/助动词/情态动词主语”意为“也是如此”。当前面所叙述的情况也同样适用于后者时用此结构。连系动词be/助动词/情态动词应与前文一致。上
23、句中有实义动词,故本句用助动词do。【答案】A,11(2011衡阳)Peter,I will visit our teacher this Sunday._.Lets go together.ANot do I BI will so CSo will I【解析】本题考查倒装句。表示前面所叙述的情况(肯定句)也同样适用于后者,用倒装句型“so连系动词be/助动词/情态动词主语”,其中,连系动词be/助动词/情态动词应与上句保持一致。故选C。【答案】C,12(2011安徽)If you want to go to see the movie this evening,so _I.Ado Bam C
24、will Dshould【解析】本题考查so引导倒装句的用法。其结构:so助动词/连系动词be/情态动词主语,意为“某人/某物也是如此”。本题为含有if引导的条件状语从句的复合句,从句用一般现在时表将来,主句应用一般将来时。【答案】C,13(2011黄石)The head teacher with his students _Tuanchengshan Park if it_tomorrow.Ais going to;isnt rainy Bare going to;isnt rainyCis going to;wont rain Dare going to;doesnt rain【解析】本题
25、考查主谓一致和状语从句。the head teacher为句子的主语,with his students是介词短语,所以该句谓语动词应为第三人称单 数形式,排除B、D两项;在含有if引导的条件状语从句的复合句中,主句用一般将来时,从句则用一般现在时表示将来。故选A。【答案】A,14(2011河北)There _lots of people at the restaurant when I got there.Ais Bwas Care Dwere【解析】本题考查there be句型。there be句型中,be动词的单复数要与be后的名词的数保持一致。people为复数名词,由此判断be动词要
26、用are或were;再由时间状语从句when I got there可知用一般过去时。故选 D项。【答案】D,15(2011安徽)Hey,Nick._comes the last bus!Hurry up,or well have to walk home.AThis BThere CThat DIt【解析】本题考查倒装句的用法。在英语中,为了强调某个地点,通常把表示地点的词(here/there)或词组放在句子的开头,谓语放在主语之前构成倒装。如果主语是代词,则主语要放在谓语动词之前。本题倒装句的正常语序:The last bus comes there!【答案】B,16(2011黄冈)My
27、 brother and I will go to the library tomorrow._.Shall we go together.ASo I do BSo do I CSo will I DSo I will【解析】本题考查倒装句。“so连系动词be/助动词/情态动词主语”这一倒装结构用来表达前面陈述的情况也适用于另一个人,意为“某人也一样”;“so主语连系动词be/助动词/情态动词”用来表示赞成前一个说话者所说的内容,意为“的确如此”。由“我们一起去好吗?”可推知前句为“我也是”,排除A、D两项;上句为一般将来时,故此处应用助动词will,故选C项,【答案】C,17(2011深圳)
28、He,together with his parents_going to visit Shanghai in July.How about you?Im afraid I have to stay at home _.Aare;on my own Bis;by myselfCis;by my own Dare;on myself【解析】句意为“他和他的父母准备七月份去上海游玩。你呢?”“我恐怕得独自待在家里。”本题考查的是主谓一致和固定短语的用法。本句中的together with his parents作伴随状语,真正的主语是he,故谓语动词要用单数形式。“独自一人”为by oneself
29、或on ones own,故选B。【答案】B,18(2010中考变式题)The reading room_very quiet.I enjoy reading books there.Aam Bis Care Dbe【解析】本题考查主谓一致。句意为“阅览室十分安静,我喜欢在那儿看书。”因为主语是第三人称单数,故答案为B项。【答案】B,19(2010中考变式题)Last Sunday my aunt_at home with me.We were watching TV all day.Awas Bwere Cis Dare【解析】本题考查动词时态及主谓一致。句意为“上周日我姑姑和我在家,我们一
30、整天都在看电视。”上周日表过去,动词应用过去式,my aunt是第三人称单数,所以A为正确答案。【答案】A,20(2010中考变式题)Leo,_no milk or eggs in the fridge.Oh,Ill go and buy some right away.Ait is Bthere is Cthere are【解析】句意为“Leo,冰箱里没有牛奶和鸡蛋了。”“哦,我马上去买一些。”本题考查there be句型,此句型的谓语动词要遵循“就近原则”,因为milk是不可数名词,故be动词用单数形式,故答案为B项。【答案】B,21(2010中考变式题)How much_the pair
31、 of shoes?Twenty dollars _enough.Ais;is Bis;are Care;is Dare;are【解析】本题考查主谓一致。第一句话的主语为the pair of shoes,谓语动词应与pair的形式保持一致;时间、长度、金钱等作主语时,通常看作一个整体,故第二句中谓语动词用is。【答案】A,22(2010中考变式题)_less milk in this bottle than in that one.AThere have BThere has CThere is DThere are【解析】本题考查there be句型。句意为“这个瓶里的牛奶比那个瓶里的少。
32、”there have形式不对,排除A和B项;又因为milk为不可数名词,be动词应用is,故选C项。【答案】C,23(2010中考变式题)I never drink coffee._.ASo do I BSo did I CNeither did I DNeither do I【解析】本题考查倒装句。前面一种否定的情况也适合于另外的人或物,用“neither连系动词be/助动词/情态动词主语”倒装结构表示。故选D项。【答案】D,24(2010中考变式题)Tom,Im watching a football match.What about you?_ ASo do I.BSo am I.CS
33、o I do.DSo I am.【解析】此题考查倒装句。“so助动词/情态动词/连系动词be主语”表示“也一样”;“so主语助动词/情态动词/连系动词be”表示“的确如此”。此处对话中提到的两者不是同一人,又因为前句有be动词am,后面也要用be动词的形式。故选B项。【答案】B,25(2010中考变式题)I hear Betty made an English speech at the graduation ceremony yesterday._,and_.ASo she did;so did I BSo did she;so I didCSo she was;so was I DSo w
34、as she;so I was【解析】本题考查倒装句。第一个空指贝蒂的确做了英语演讲,用So she did.陈述形式,第二个空指我也做了演讲,用倒装形式so did I,故选A。【答案】A,26(2010中考变式题)David has been away for more than 3 years.I miss him very much.You know 3 years _short.Ais Bisnt Care Darent【解析】本题考查主谓一致。3 years为一段时间,作主语时可看作单数,谓语动词用单数形式。由答语后句句意“我很想念他”知,“离开3年已不短了”,故选B。【答案】B,
35、27(2010中考变式题)Hello,Mike.Long time no see.Where are you?Oh,not only my father but also I _Australia for a month.Ahave gone to Bhave been toChas been in Dhave been in【解析】not only.but also连接的并列主语中,谓语动词的数应该和它的邻近主语一致。在某地待一段时间用介词in表状态。故选D。【答案】D,28(2010中考变式题)Both you and I _an English film before.Ais seein
36、g Bare seeingChave seen Dhas seen【解析】句意为“我和你以前都看过一部英语电影。”both A and B表示“A和B都”,作主语时,谓语动词应该用复数形式。又由before可知本句应该用现在完成时,故选C。【答案】C,29(2012中考预测题)Either Mary or he _going to Paris.Only one person may go there.Aare Bis Cwas【解析】句意为“或者Mary或者他将去巴黎。只有一个人可以去那里。”either.or.“或者或者”,遵循就近原则故选B。【答案】B,30(2012中考预测题)There
37、 _no milk in the fridge.Could you get some for me,Dick?All right,Mum.Ais Bare Cwas Dwere【解析】句意为“冰箱里没有牛奶了。你可以帮我买些吗,迪克?”“好的,妈妈。”由句意可看出这是当前的对话,用现在时,排除C和D;milk是不可数名词,故选A。【答案】A,31(2012中考预测题)Sixty percent of the work _been done.Ahave Bis Chas【解析】句意为“60%的工作已经做完了。”work是不可数名词,其作主语时谓语动词用单数形式。现在完成时态的被动语态结构为hav
38、e/hasbeendone,故选C。【答案】C,32(2012中考预测题)Would you like to go shopping with me?If Kate goes,_.Aso I will Bso will I Cneither will I【解析】句意为“你愿意和我一起购物吗?”“如果凯特去,我也去。”if引导的条件状语从句用一般现在时,主句用一般将来时,由句意可知,表示肯定的含义,故选B。【答案】B,33(2012中考预测题)Not only_what to do,but he also lent me money.Ahe advised meBdoes he advise m
39、eCdid he advise me【解析】句意为“他不仅建议我做什么,而且也借给我钱。”not only引导的句子应该用倒装语序,由lent可知用一般过去时,所以选C。【答案】C,34(2012中考预测题)Not you but I _ to answer for it.Aare Bam Cis Dbe【解析】句意为“应对此负责任的是我,而不是你。”主语由not.but.两部分构成时,谓语动词遵循就近原则。【答案】B,35(2012中考预测题)Good news!There_fewer people catching this kind of illness now.Aare Bis Cwa
40、s Dwere【解析】句意为“好消息!现在有更少的人得这种病了。”集体名词people表示复数意义,且由时间词now知表示现在,由此可知选A。【答案】A,36(2012中考预测题)Father,you promised!Well,_.But it was you who did not keep your word first.Aso was I Bso did ICso I was Dso I did【解析】句意为“父亲,你答应过的!”“是呀,我的确是。但是你先不遵守诺言的。”so主语助动词意为“的确如此”。【答案】D,37(2012中考预测题)I will never come to th
41、is restaurant again.The food is terrible!_.ANor am I BNeither will ICSame with me DSo do I【解析】句意为“我再也不会来这家饭馆了。饭菜太难吃了!”“我也不会来了。”本题表示“也不”用neitherwill主语。【答案】B,38(2012中考预测题)Many a student _been to Shanghai.Ahas Bhave Chad Dhaving【解析】“many a单数名词”作主语,意义虽为“许多”,但谓语动词要用单数形式。【答案】A39(2012中考预测题)This new pair of
42、 socks _nice.Aare Blooks Clook【解析】由This new pair.可知后面的谓语动词用第三人称单数形式,不受socks的影响,故选B。【答案】B,40(2012中考预测题)Everyone except Tom _in the classroom when the class began.Awas Bis Cwere【解析】句意为“开始上课的时候,除了Tom以外每个人都在教室里。”everyone作主语时可理解为第三人称单数,由后半句began可知用一般过去时态,故选A。【答案】A,41(2012中考预测题)Only by practicing a few ho
43、urs every day _be able to master the language.Ayou will Bcan you Cwill you【解析】句意为“只有通过每天训练几个小时,你才会掌握这门语言。”当only修饰副词、介词短语或状语从句,且放在句首时需要用倒装句型,又由句意可知用一般将来时态,故选C。【答案】C,42(2012中考预测题)Physics_easy for us to learn.Aam Bis Care Dbe【解析】以ics结尾的学科名称作主语时,不应受词尾s的影响,谓语动词需要用单数形式。【答案】B43(2012中考预测题)Every man and ever
44、y woman_at work.Abe Bare Cis Dam【解析】主语是“each/every单数名词and(each/every)单数名词”时,谓语动词用单数形式。【答案】C,44(2012中考预测题)Mike,like his brother,_ playing football.Ais enjoyed Benjoying Cenjoy Denjoys【解析】当主语后接with,together with,along with,as well as,besides,except,but,like等介词或介词短语时,谓语动词的单复数形式由主语的单复数形式决定。【答案】D,45(2012
45、中考预测题)The writer and teacher_coming.Aare Bbe CAm Dis【解析】句意为“那位作家兼教师来了。”由and连接的两个单数名词作主语时,谓语动词一般用复数形式,但and所连接的并列主语是同一个人、事物或概念时,谓语动词用单数形式。【答案】D,46(2012中考预测题)Every year a number of tourists _attracted to the beach.The number of tourists _about 50,000.Aare;are Bhave;is Care;is Dhave;are【解析】句意为“每年,很多游客都被
46、吸引到这个海滩上来,这些游客的数量大概是50,000。”a number of意为“许多”,常修饰名词复数形式,作主语时,谓语动词用复数形式;the number of意为“的数目/量”,表示一个总量,该名词短语作主语时,谓语动词用单数形式。【答案】C,47(2012中考预测题)Not only her parents but also her grandmother _ to a lot of places of interest in our country since they came here.Ahas gone Bhas beenChave gone Dhave been【解析】句
47、意为“自从他们来到这,不仅她的父母而且她的祖母都已经去过我们国家的许多名胜。”not only.but also遵循就近原则,故选 B。【答案】B,48(2012中考预测题)_ the teachers in our school is about 150 and one fourth of them are _ teachers.AA number of;women BA number of;womanCThe number of;women DThe number of;woman【解析】句意为“我们学校教师的数量大约是150人,并且四分之一是女教师。”a number of“许多的,大量
48、的”;the number of“的数量”,由句意可排除A、B两项。又因为woman修饰复数名词时,本身也要变复数,故选C。【答案】C,49(2012中考预测题)Not until he failed in the exam _ how serious the problem was.Ahas he realized Bdid he realizeCthat he realized Dhe did realize【解析】句意为“直到他考试不及格,他才认识到问题的严重性。”当not,no,few,not until,little,hardly,never,not only,no longer,b
49、y no means等表示否定意义的词置于句首时,其后用倒装结构,故选B。【答案】B,50(2012中考预测题)Half of the class _ most of the work;some of the work _ really difficult.Ahave done;is Bhas done;areChas done;is Dhave done;are【解析】half作主语,谓语动词根据of后的名词的单复数确定,class在这里指的是全班学生,是复数,所以谓语动词用复数形式。some作主语,其后的谓语动词与of后名词一致,work是不可数名词,故谓语动词用单数形式,故选A。【答案】A,