考研英语词汇（必考词+基础词+超纲词）练习题及答案详解必考词第一节（Unit 1——Unit 7；第1页——49页）练习一：词汇与搭配1．Californians and New Englanders speak the same language and abide the same federal laws.3．A bridge can be defined river,a road or railways.a structure getting over an obstacle,such as a right thing.6．You can take the books with you and read them your leisure.7 He was running the pace he had learnt from the natives.．9．I could scarcely keep pace the new discoveries in biology.10．When I was about twelve,I suddenly developed a great passion writing poetry.f committing suicide.13．Try our delicious three‐course meal,offering you superb value money.14．Susan put a value of a thousand dollars the necklace.练习二：词汇辨析1．Their request is refused.[A]abrupt[B]absurd[C]acute[D]apt 2．He soon received promotion,for his superiors realized that he was a man of considerable.[A]future[B]possibility[C]ability[D]opportunity 3．The of the speech contest is made up of four professors and a famous broadcaster.[A]committee[B]board[C]panel[D]leadership 4．We have the system of exploitation of man by man.[A]cancelled[B]abolished[C]refused[D]rejected 5．A child has trust in its mother.[A]complete[B]perfect[C]absolute[D]thorough 6．The storage vessel has a of 10,000 liters.[A]capacity[B]capability[C]ability[D]faculty 7．I sometimes have[A]opportunity[B]occasion[C]chance[D]possibility 8．That sound doesn’t[A]happen[B]take place[C]occur[D]run to visit Birmingham on business.in his language so it’s difficult for him to pronounce.9．Getting up is an everyday.[A]happening[B]occurrence[C]incident[]event D 10．Because of financial difficulties,the project was______.[A]abandoned[B]deserted[C]discarded[D]excluded 11．All the streets were[A]furnished[B]decorated[C]supplied[D]ornamentedwith flags to welcome the Chinese delegation.12．The English language is the result of the fusion of many different.[A]particles[B]ingredients[C]elements[D]principles 13．Although this child is only sixteen years old,he is so that he has one hundred dollars.[A]thrifty[B]economical[C]financial[D]economic 14．Beside him sat a rich lady__with jewels.[A]glittering[B]flickering[C]flashing[D]glistening 15．I caught a of the car before it disappeared around the bend.[A]glance[B]glimpse[C]glare[D]stare 16．The TOEFL is divided into three,namely,listening,structure and reading.[A]sections[B]fragments[C]fractions[D]portions 17．She worked hard at her task before she felt sure that the results would__________her long effort.[A]justify[B]testify[C]rectify[D]verify ongbaoshu.com 18．The crowd suddenly burst into.[A]laugh[B]laughters[C]laughing[D]laughter19．I had to stand in a[A]row[B]procession[C]tail[D]queuefor hours to get tickets for the film.20．Most theories of juvenile delinquency have focused on children from disadvantaged families the fact that children from wealthy homes also commit crimes.[A]considering[B]ignoring[C]highlighting[D]discarding 21．I should think it over before I on such a hazardous project.[A]commence[B]start[C]begin[D]embark 22．That problem is beyond the of this article,so I’ll not discuss it here.[A]scale[B]extent[C]scope[D]range 23．The concert with a solo by the leading tenor.[A]finished[B]terminated[C]ceased[D]stopped 24．He is the only person who can in this case,because the other witnesses were killed mysteriously.[A]testify[B]charge[C]accuse[D]rectify 25．He thought I was lying.I was telling the truth.[A]wherever[B]whereby[C]whereas[D]whereupon 26．In the advanced course students must take performance tests at monthly.[A]gaps[B]intervals[C]length[D]distance 27．The neighborhood boys like to play basketball on that lot.[A]vague[B]vacant[C]vain[D]valid练习三：英语知识运用1．Estimates anywhere from 600,000 to 3 million.Although the figure may vary,analysts do agree on another matter:that the number of the homeless is increasing,one of the federal government’s studies predicts that the number of the homeless w l each nearly 19 million by the end of this decade.[A]cover[B]change[C]range[D]differ 2．Making friends is extremely important to teenagers,and many shy students need the admission of some kind of organization with a supportive adult visible in the background.[A]particular yl[B]barely[C]definitely[D]rarely 3．The canal must be wide enough to permit two of the largest boats using it to pass each other easily.It must be deep enough to leave about two feet of water_______the keel of the largest boat using the canal.When the planet Mars was first observed through a telescope,people saw that the round disk of the planet was criss‐crossed by a few of strange blue‐green lines.[A]down[B]below[C]beneath[D]off 4．The key to the industrialization of space is the U.S.space shuttle.With it,t astronauts will acquire a workhouse vehicle of flying into space and returning many times.Powered by reusable rockets that can lift a load of 65,000 pounds,the shuttle will carry devices for scientific inquiry,as well as a variety of military hardware.[A]capable[B]suitable[C]efficient[D]fi 5．As time went by,computers became smaller and more powerful,and they became“personal”too,as well as institutional.With display becoming sharper and storage increasing.[A]ability[B]capability[C]capacity[D]faculty 6．Though the ideal cure for noise is to stop it at its source,this may in many________be impossible.The next remedy is to absorb it on its way to the ear.Domestic noises may by controlled by forethought and courtesy and industrial noises by good planning and technical improvement.[A]cases[B]conditions[C]presentations[D]circumstances通用网址：红宝书7．In trying to accumulate knowledge about the universe and to find common factors which underline and account for the facts that he knows,the scientist often chooses the method of the“controlled experiment.”If he wants to find out the effect of light growing plants,he takes many plants,as alike as possible.[A]on[B]of[C]by[D]to 8．For example in the desert areas of the southwestern United States,the Indians cooked their food by beating it on a flat stone in the hot sun.They cooked pieces of meat and thin cakes of corn meal in this.We can surmise that the earliest kitchen utensil was a stick to which a piece of meat could be attached and held over a fire.[A]zone[B]sector[C]method[D]fashion 9．The method works best cases where total deafness is due to malfunctioning of the ear’s sensory cells.There must be sufficient functioning nerve fibers available to transmit the message to the brain;,there are generally no more than 10 i percent remaining n most cases,since they tend to atrophy with disuse.[A]fortunate yl[B]spontaneously[C]basically[D]unfortunately 10．Another way to divide the study of geography is to distinguish between physical geography and cultural geography.The former focuses on the natural world;the________starts with human beings and studies how human beings and their environment act upon each other.[A]second[B]next[C]later[D]latter 11．But more significantly,it will materials and machines into space for industrial purposes unimagined two decades age when“sputik”(artificial satellite)was added to the vocabulary.In short,the ultimate importance of the shuttle lies in its promise as an economic tool.[A]supply[B]introduce[C]deliver[D]transfer 12．We live in a materialistic society and are trained from our earliest years to be acquisitive(贪婪的).Our possessions,“mine”and“yours”,are clearly from early childhood.When we grow older enough to earn a living,it does not surprise us to discover that success is measured in terms of the money we earn.[A]signed[B]noted[C]impressed[D]labeled 13．What makes the space shuttle is that it takes off like a rocket but lands like an airplane.Thus,when it has accomplished its mission,it can be ready for another trip in about two weeks.[A]exceptional[B]strange[C]unique[D]rare 14．Although there are disagreements over the definition of revolution,there is a standard view that revolutions are successful social movements on a much grander.That is,involving more people and much more social change.Although social movements like the U.S.Civil Rights Movement may be working to enact some law or produce some reform in the society,revolutions like the Chinese Revolution are aimed at major social change.[A]level[B]scale[C]degree[D]range 15．Strangely,some people find that they can smell one type of flower but not another,others are sensitive to the smells of both flowers.[A]when[B]since[C]for[D]whereas16．Americans choose pasta,fruit,and vegetables,which supply them with carbohydrates,to give them strength for physical activities.For romantic dinners,however Americans choose shrimp and lobster.Americans’awareness of nutrition,along with their changing tastes and needs,leads them to consume a wide of foods.[A]sort[B]variety[C]kind[D]variation 17．Wealth,in this sense is not money,for we do not live on money but on things that money can buy:“goods”such as food and clothing,and“services”such as transport and entertainment.A country’s capacity to wealth is influenced by many factors,most of which have an effect on one another.Wealth is dependent to a great extent upon a country’s natural resources.[A]control[B]assemble[C]yield[D]benefit练习四：语法与词汇1．_______with the size of the whole earth,the highest mountain does not high at all.A.When compared C.While comparingB.Compare D.Comparing 2．A new technique_______,the yields as a whole increased by 20 percent.A.working out C.having been worked outB.having worked out D.to have been worked out 10 3．We desire that the tour leader_______us immediately of any change in plans.A.inform B.informs C.informed D.has informed 4．Having no money but_______to know,he simply said he would go without dinner.A.not to want anyone B.not wanting any e on C.wanted no one D.to want no one 5．Look at the terrible situation I am in!If only I_______your advice.A.follow B.had followed C.would follow D.have followed 6．The vacuum tube,invented near the beginning of our century,gave us the use of radio waves,an energy source never before_______,and later opened the road for television.A.was captured B.captured C.capturing D.has been captured 7．Before the Spring Festival,the leaders of the village made house‐to‐house survey,_______in each family about their needs and problems.A.to inquire B.to be inquiring C.inquiring D.inquired 8．_______Adam Smith’s"The Wealth of Nations"that Jim Green was fascinated by economic theory.A.After reading B.It was reading C.It was after reading D.Having read 9．Humble_______it may be,there is no place like home.A.although B.as C.how D.that 10．Prof.Lee’s book will show you_______can be used in other contexts.A.that you have observed B.that how you have observed C.how that you have observed D.how what you have observed 11．How many of us_______,say,a meeting that is irrelevant to us would be interested in the discussion?A.attended B.attending C.to attend D.have attended答案及详解练习一通用网址：红宝书1．abide与by搭配表示“遵守”。句意：加利福尼亚人和新英格兰人说同样的语言，遵守同样的联邦法律。2．characteristic of“是……的特点；是……特有的”。3．define...as表示“把……定义为”，为固定搭配。句意：桥可被定义为跨越于河流、道路或铁路等之上的建筑物。4．hamper sb.from+n.(doing)妨碍某人做某事。句意：偏见有时妨碍一个人做正确的事。5．be liable to(=be subject to)“易于……的，应受（罚）的”。6．at one’s leisure“在……有空的时候”。注意区别：at leisure（作表语）“闲着”；（作状语）“从容地”。7．at the pace“以那种速度”，介词at常用以表示速度、比率、价格等。8．take out a patent on sth.取得一项……的专利。另外hold a patent on对……拥有专项权利。句意：为了保护他的发明，他申请了专利。9．keep pace with(=go forward at the same rate as)“跟……齐步前进”。10．passion for(=strong feeling or enthusiasm)“对……的热爱，热情”。11．on the verge of“某事即将发生，接近于，濒临”。12．be urgent with sb.for sth.急切向某人要某物。13．value for money表示“货真价实”，为固定搭配。通用网址：红宝书14．put a value…on“对……的估价”，为固定搭配。value是指所估计东西的价值或价格。句意：苏珊对这串项链估价为1000美元。练习二1．句意：他们的荒谬要求被拒绝了！根据句意，应该选择一个sensible（明智的）反义词，因此，absurd（荒唐的，荒谬的，愚蠢的）正合要求。[A]abrupt“(举止言谈等)唐突的，鲁莽的；突然的”，[C]acute“尖锐的，敏感的；剧烈的；严重的”，[D]apt“恰当的，适当的，聪明的”。2．句意：他很快就得到了提升，因为他的上司们意识到他是一个很有才能的人。future首先是不与considerable（大量的）搭配，其次，一个有前途的人可译为a man with a future。possibility（可能性）不能跟在of后面修饰人，但可以说：He has future possibilities.他大有前途。opportunity（机会）也不跟在of后面作后置定语修饰人。只有ability可以这样用。3．panel通常是负有专门使命的小组，用于本句最准确。[A]committee是指一批人中推选出的管理委员会；[B]board多指有控制权的人组成的委员会，如：the board of directors;[D]leadership是抽象的领导集团。4．句意：我们已经废除了人剥削人的制度。[B]abolish和[A]cancel都有“取消”的意思：abolish强调废除，如制度、做法、风俗等；cancel多指取消已安排或决定的计划、会议等，如：The meeting has been cancelled.[C]refuse“拒绝（请求或提供）”，如：refuse an invitation，refuse a gift;[D]reject与refuse意思一样，但语气更强。5．absolute指事物完全，不掺杂别的成分，绝对真实，只做定语，语义很强；[A]complete着重强调事物各部分都齐备无缺；[B]perfect指人或事完美无缺，一般作褒义，如作贬义时，指事物完全不好；[D]thorough指各个方面都很完美或完善，尽善尽美。6．capacity指生产能力或容纳能力。[B]capability用于人指智力方面的潜在能力，用于物指可能性或适应性；[C]ability指人可通过学习来获得做好事的能力；[D]faculty指人在某方面的特殊能力。7．occasion“时机，机会”，含有原因的意思，符合句意。[A]opportunity“良机，机会”，指某一特定时机，有利于做某事以实现某种抱负与愿望等；[C]chance“机会，运气”，指无法解释的天意或命运所安排的时机，强调偶然性；[D]possibility“可能（性），可能的事”。8．occur除“发生”的意义外，还有“存在，出现”的意思，相当于英语中的exist,be found,这个词义是happen和take place所没有的。如果指“发生”，这几个词有如下区别：[A]happen指事先无计划、偶然地发生；[B]take place常指事先安排、计划的事情；[C]occur指发生时，有计划无计划都行。9．occurrence可指意外或计划中发生的事件、事情，也可指普通家庭中的事情。[A]happening往往指偶然或未能预见而发生的事件、事情；[C]incident常指附随于重要事件的小事件或不太重要的事；[D]event尤其指重大事件、事情。10．abandon指因外界压力和影响而放弃自己负有责任或感兴趣的东西。放弃一个项目，通常用abandon，亦可用词组give up；[C]discard往往是抛弃一样具体的东西，如废纸等；[B]desert表示抛弃自己的天职或应尽的义务，通过离开的方式而抛弃，也就是说，不是把物扔掉，而是人走掉；[D]exclude“排除”。11．decorate“装饰、布置（目的在于美化或庆祝）”。句意：所有的街道都是悬旗欢迎中国代表团。[D]ornament也有“装饰”的意思，但常指增添某物以增加原物之美。12．element表示“成分”，通常指一个整体中基本的、不可缺少的或内在固有的成分。它所强调的常常是一个复杂的整体中简单的或者基本的成分。[B]ingredient虽也表示“成分”，但主要指混合在某个整体中，没有发生变化的物质，也指在一个有机整体中那些熔融和改变了形态的部分。13．thrifty“节俭的，节约的”，只强调人在其花费上节俭。[B]economical则强调精明的管理，充分利用钱、物等而无浪费，用法比thrifty更广。14．glitter“闪烁、闪光”，如珠宝、钻石等发出的闪闪冷光。[D]glisten“闪光”，尤指泪珠、汗珠、露珠等发出的闪光；[B]flicker“（光）闪烁，忽隐忽现，摇曳”；（引申义）“希望”闪现；[C]flash“（尤指强光）闪光”，如闪电，汽车灯的闪光，也可指星光或远处灯塔的闪光。15．[A]glance与[B]glimpse的区别正类同于look与see（名词sight）；glance指有意识的“一瞥”；glimpse指无意识“瞥见”。[D]stare与[C]glare的区别：stare表示“睁大眼睛看”；glare=stare angrily。16．section指通过或似乎通过切割或分离而形成的部分，如指书、文章或城市等的某一部分。句意：托福试题分为三部分，即听力、结构及阅读。[B]fragment“碎片，碎块”，指经过破碎而与整体分离的部分，指随便的一点点、一小片，特别是残屑碎片中的一小片；[C]fraction“小部分，碎片”，亦指经过破碎而与整体分离的部分，常表示可略去不计的微不足道的部分；[D]portion“一部分，一份”，指在某物中所占的份额，比例。17．justify“表明或证明（某人/某事）是正当的，有理的或公正的”。句中justify her long effort意为证明她的长期努力是对的。[B]testify“作证”；[C]rectify“纠正，校正”；[D]verify“证明，证实”。18．laugh是可数名词，laughter是不可数名词。另外，burst into+n.=burst out doing:burst into laughter=burst out laughing。19．queue通常指人、车辆等排队等候的意思。句意：为了买票看这部电影，我不得不排队等上几个小时。[A]row“排，行”，指人或物有规则地排列着；[B]procession“队伍，行列”。20．前半句Most theories of juvenile delinquency have focused on children from disadvantaged families和后半句children from wealthy homes also commit crimes有对比关系，因此要选与focus相反的词语，ignoring最贴切，故选[B]。21．embark“着手；从事”，常与on(upon)连用。句意；在从事这项危险工程之前，我得考虑考虑。[C]begin,[B]start和[A]commence都与“开始”之意。begin为一般用语，commence正式用语，指某一正式行动之开始。start则着重于做某件事的第一步，三词都可跟不定式和动名词。22．scope指在某一范围内的回旋余地，即本句所用的，某一题目所涉及的范围。[A]scale指规模之大小；[B]extent指能延伸到的范围、程度；[D]range指在某个限度之内的范围。23．terminate用法较为正式。[A]finish“结束，完毕，完成”，用finish with时主语应为sb.,如：He didn’t finish in time.[C]cense“结束，停止”，一般强调某种状态、条件或存在的暂时中断、停止，如：My joys will never cease.[D]stop“使停止，把……停下来”，指运动、行为或进展的暂时中断，停止，如：Stop the bus.I want to get off.24．句意：他是这个案子中唯一可以作证的人，因为其他的目击证人都被神秘杀害了。testify意为“作证，证明”，符合题意。[B]charge指“指控”，[C]accuse意为“控告，指探”。[D]rectify意为“纠正，改正”。25．whereas“而，然而”，相当于but on the contrary。[A]wherever“不管……在哪里”，相当于no matter where,如：Wherever he goes,I’ll go and I don’t care what happens.[B]whereby“靠那个，借以”，副词，相当于by which,如：This is a way whereby you can learn quickly.[D]whereupon“因此；于是；随之”，相当于at or after which time,如：He stopped speaking,whereupon I left the room.26．句意：考生们学习高级课程必须每隔一个月参加一次考核学习情况的测试。[A]gap“缺口，隔阂；间隔”，可与at连用，如：generation gap代沟；the gap between the rich and the poor countries穷国与富国之间的差距；[C]length“长度”，at length“详尽地”，如：He told us at length about his work and life.他详尽地向我们谈了他的工作和生活情况。[D]distance意为“距离”,at a distance意为“在一定距离外”，如：The picture looks better at a distance.离开一点，这幅画更好看。27．句意：附近的男孩子们喜欢在那块空地上打篮球。[A]vague意为“模糊不清的，不明确的”，[C]vain指“徒然的；虚荣的”，[D]valid指“正当的，有效的”。这三个词都不合题意，只有vacant是“空着的，无人的”意思，a vacant lot就是“空地”。练习三1．本句意思为“估计数字的范围大约从60万到300万之间”，而range from…to…这一句型正是表示“在…范围之内变化”的意思，故本题选[C]。[A]cover虽然有“包含”之意，但cover表示“覆盖”的面积，大小，不表示范围，故排除。[D]differ主要强调不同，而本句并未强调不同，只是强调范围，故选择range。2．[A]particularly意为“特别，尤其；详细地，细致地”；[B]barely意为“almost not;hardly”（几乎没有）；[C]definitely意为“明确地，肯定地；限定地”；[D]rarely意为“not often”（很少，难得），是频度副词，只能修饰动词或具有动作意味的形容词，如present,angry,late等，不修饰后缀为‐ble的表状态的形容词，本题的关键是in the background。既然是在幕后，就不会在前台露出，所以选barely一词。3．beneath“在……以下（表示位置）”。[A]down表示方向；[B]below用于抽象概念；[D]off则表示距离，不明指高低。4．capable of doing是固定搭配，意为“能够做……，有能力做……”。5．capacity意为“容量”，本题中的storage capacity指存储量。[A]ability意为“能力，才干”，指人的才智而言，强调不但聪明，而且有受过实际锻炼的才干，含义比capability强。[B]capability意为“能力，才能，手腕”；[D]faculty意为“才能，天赋，技能”，指特殊的才能。6．case（事实，情况）常与介词in连用，如：in this case在这种情况下。in many cases意为“在许多情况下”，是最佳选择。[B]condition（情形，状况，条件）要与介词under或on连用；[D]circumstance（情形，环境，状况）要与under搭配。[C]presentation（展示，描述，介绍）在此讲不通。7．on表达“对……起作用或有影响”，要用have an effect on这一固定搭配，故应选[A]，其余选项均不正确。8．in this fashion“用这种方式”。9．由于大多数病例中，其次听神经纤维留下的一般不超过计划10%，均因长期不用而逐渐萎缩。对于这一事实不能说是“幸运”(fortunately)，只能说是“不幸”（unfortunately），故选[D]。10．注意句型：the former…，the latter“前者……，后者……”。11．deliver指的是航天飞机可以将材料和机械“运入”太空进行科学实验。[D]transfer“调动，转移”。12．label“贴标签于”，符合文意。后一句意思是：在很小的时候，我们的物品就分成“你的、“我的”，好像上面标了标签。[A]sign“签名”；[B]note“记录”；[C]impress“盖印章”。13．此句说明航天飞机能像火箭一样发射，像飞机一样着陆，这使它成为“独一无二的”，用unique“独特的”来形容最为适合。18 14．on a grand scale即“大规模地”，是常用搭配。[A]level“水平，水准，级别”；[C]degree“等级，程度，温度”，如：by degrees渐渐地；in no degree一点也不；in a degree惊人地；[D]range“范围，系列，射程”，如：a country with a wide range of temperature一个气温变化很大的国家；people in the￡3,000/4,000 income range收入在三千至四千镑之间的人。15．本题考查的也是对空格前后的两个半句之间的逻辑关系的理解。由于上半句提到“有些人认为他们可以闻出一种花香，却闻不出另一种”，下半句提到“有些人却对两种花香都很敏感”。显然这两个半句之间构成一种对比关系，而选项[A]when用于引导时间状语从语，[B]since用于引导时间或原因状语从句，[C]for用于引导原因状语从句，都不符合上下文语义关系。只有[D]whereas可用于引导表示转折关系的并列句，符合上下文逻辑语义关系，因此，本题的正确选项是[D]。16．a variety of=all kinds of“各种各样的”，指多样化，而variation是变化的东西。17．yield“制造，生产”，其他词与句意不符。练习四1．该题考查非谓语动词。其中句子主语为the highest mountain,它与the size of the whole earth之间的比较应该是被动关系,所以答案为A。该句可转换为When the highest mountain is compared with the size of the whole earth,it does not seem high at all。2．该题考查独立主格结构。其中A new technique与work out之间的关系是被动关系,所以排除A、B选项,而D选项为不定式完成式的被动式,常用于sb./sth.is said/believed to have(been)done...这样的句型中,表明其动作在谓语动词动作之前已发生,如：He is said to have written some books.或His works is believed to have been translated into many languages。此题整个部分完全符合独立主格结构的构成公式：主语+分词(短语)+主谓,故答案为C。3．该题考查虚拟语气。其中在由desire引导的宾语从句当中,从句谓语动词由(should)+V原，构成,故答案为A。4．该题考查非谓语动词.其中“Having no money...”在句中做状语表原因,其逻辑主语就是句子主语He。另外but两边为对等成分,而且分词的否定式是在分词前加not,故答案为B。5．该题考查虚拟语气。根据句意if only...表明一种与过去相反的假设,其中在if only引导的句子中表示与过去相反的假设谓语动词用过去完成时,故答案为B。6．该题考查独立主格结构。其中该句主干为The vacuum tube gave us the use of...the road for television。而energy source与capture间是被动关系,排除C选项.另外an energy source是对其前radio waves做进一步解释，可见“an energy source never before___”不是一个句子，而是一成分，故答案为B。7．该题考查非谓语动词.首先排除D选项,因为inquire应是the leaders发出的应为主动形式。选项A为不定式,而不定式做状语表目的时常置于句首,置于句中时常用in order to...形式;选项B为不定式的进行式,常出现在如下句型中：He happened to(to)be directing the traffic。故答案为C，现在分词做状语伴随made这一动作。8．该题考查强调句型：It is/was+强调部分+that(when/who)+...判断强调句的标准是去掉it is/was以that(which/who),如果剩余部分是一完整句就是强调句型,否则是由it做形式主语的主语从句,由此可见答案为C，而A、D两选项为分词做状语,需去掉该句当中的that方可选。9．该题考查倒装句.其中固定句型n/a/ad+as+主谓(其中n前不能带不定冠词a或an),可用though或although引导的让步状语从句来替换,比如该题可替换为Although it may be humble,there is no place like home。故答案为B。10．该句考查句子结构。其中show后接的双宾语,直接宾语常为疑问副词或疑问代词引导的宾语从句或不定式短语。该题中how引导一个带有主语从句(what you have observed)的宾语从句,what you have observed在宾语从句中做主语,故答案为D。11．该题考查句子结构。其中该句主干为How many of us would be...discussion,say为插入语,相当于for example,而us与attend之间是主动关系，所以选B做us的后置定语，C表示将来。
