答案：

　　221.答案A.would/had rather do A(than do B)“宁愿……(而不愿)(如He would rather listen to others than talk himself;I’d rather have the red one than the green one;I’d rather deal with a man than with a woman;I’d rather you knew that now than afterwards;Rather than get money in such a dishonest way,he would beg in the streets.)(从以上各例句不难看出：than前后所比较的成分必须对等，可以是动词不定式、名词或介词短语)prefer vt.”更喜欢，宁愿“(句型：prefer A to B;prefer doing A to doing B;prefer to do A do B)would like”愿意，希望“(句型：would like sth/-ing/to-V/sb to-V)feel like sth/-ing“感到想”

　　222.答案B.sufficient(for/to-V) adj.“足够的，充分的”efficient adj.“效率高的，有能力的”△persistent adj.(定语或表语)“持续的，顽强存在的;坚持不懈的，执意的”rich adj.“富有的，有钱的;富饶的，丰富的(in);肥沃的”

　　223.答案C.tame vt.“驯服，制服”tend vt.“照管，照看，照料;护理”cultivate vt.“培养，陶冶(情操);耕作，种植”breed vt.“饲养，繁殖”

　　224.答案D.alike adj.“同样的，想象的”(只作表语)similar(to) adj.“类似，相似”same adj.“相同的，一样的”(必须与定冠词连用)like adj.(表语或定语)“相像的，相同的”

　　225.答案B.bring sth to mind“使回想起”(如The story you have just told brings to mind a strange thing that once happened to me.)refresh vt.“使精神振作，使精力恢复;使记起”(以人作主语，常说refresh sb’s memory)stimulate vt.“刺激，激励”remind vt.“使想起，提醒”(句型：remind sb of/about sth;remind sb to-V;remind sb that…;remind的主语可以是人或事物，但宾语必须是人)

　　226.答案C.deal with “论述，涉及;处理;与……打交道;和……做买卖”(后面不跟其它三个介词)

　　227.答案D.account for“解释，说明(原因，钱是怎么花的);是造成……的原因;占(多大比例)”(如He could’t account for his absence from school;He was unable to account for the deficit in the firm’s bank balance;Late frosts accounted for the poor fruit-crop;Women account for half of the population.)(后面不跟其他三个介词)

　　228.答案B.a step towards“迈向……的一步”(后面一般不跟其它三个介词)

　　229.答案A.protest (against) vi./n.“抗议，反对”(句型：to protest to sb against sth;to make/enter/lodge a protest against sth;in protest against“抗议”;without protest“乖乖地，毫无反对表示地”;do sth under protest“不情愿地”)deny vt.“否认，不承认;拒绝给予”upset vt.“打翻，弄翻;使心烦意乱，使苦恼”compete(with/against sb in sth for sth)vi.“竞争，比赛”

　　230.答案B.compare with“比较，对照;(能与……)相比较”(后面还可以跟to ,但不跟其它三个介词)

　　231.答案C.break into “突然……起来”(break into tears/laughter/applause/cheers/blossom/song/open war);“强行进入，破门而入”(break into a house/a bank);“打扰，打断(讲话)”(break into a discussion/a conversation)break in“闯入;插嘴”(单独用，后面不跟宾语)break off“中止，中断;断绝(关系);停工休息”(单独用或后面跟宾语)break out“爆发;突然发生”

　　232.答案D.hand over “交出，移交”(hand sth over sb)hand in“交上，递交”hand out“分发，散发”hand down“把……传下去;把……传下来”

　　233.答案C.get…across(to sb)“把……讲清楚，让听懂，使被了解”(如He got his meaning across;get across a theory to his students;The message got across all right.)get around“(消息)传开;四处走走;回避，绕过”;(get around to sth)“找时间做某事”get on to“接着干(下一件事，谈下一个问题)”get down to sth“开始认真干某事”

　　234.答案A.optimistic(about)adj.“乐观的，乐观主义的;令人乐观的”(如He was optimistic about the future of mankind;There are optimistic signs for the company’s future.反义词pessimistic“悲观的”)optional adj.“可以任选的，非强制的”obvious adj.“显然的，明显的”outstanding adj.“突出的，杰出的，显著的”

　　235.答案A.proportion n.“比例;部分，份儿;均衡，相称”(be in proportion to“与……成比例;与……比较起来”，如payment in proportion to the work done,not in proportion to the time taken to do it;This door is narrow in proportion to its height;in the proportion with/to“与……不成比例”：The door is out of proportion with the windows;The price of the article is out of all proportion to its value.)○correlation n.“相互关系，伴随关系;关联(作用)”connection n.“关系，连接”(in connection with关于，有关，和……联系起来)correspondence n.[u]“通信，通信联系;相当，相似处”( in correspondence with)

　　236.答案B.fetch vt.“去拿来;请来;接回”carry vt.“携带，运载;传送，输送”bring vt.“拿来，带来”reach vt.“抵达，到达;伸手(拿)

　　237.答案C.ensure vt.“保证，担保“(句型：ensure sb sth;ensure sth to sb”确保某人得到“;ensure sb against”使不受“;ensure-ing/that “保证”)assured vt.“向……保证，肯定地说;使确信，使放心”(句型：assure sth;assure sb sth;assure sb of sth;assure sb that…)secure the door/locks;secure sb/a place against/from danger;后面不跟从句)issure v.“发行，颁布;出版;(使)流出，发出”(后面不跟从句)

　　238.答案A.injure vt.“伤害，损害，损伤”damage vt.(一般指对物体)“毁坏，损害”harm vt.“伤害，损害，危害”(可指对物体或人造成有形的或无形的、肉体的或精神上的、具体的或抽象的损害或伤害)wound vt.“使受伤，伤害”(注：injure一般指事故伤害;harm一般指有意的或无意的造成的有形的、精神的或抽象意义上的伤害;damage一般指人为ideas或自然所造成的损坏;wound一般指在战争或斗殴中造成的枪伤或刀伤，也可指对某人造成精神、荣誉或情感上的伤害)

　　239.答案D.rare adj.“少有的，罕见的;稀有的，难得的;稀薄的，稀疏的“scare adj.“缺乏的，不足的;稀少的，不易找到的”minor adj.“较少的，较小的，较次要的”slight adj.“轻微的，微小的;纤细的，瘦弱的”

　　240.答案B.permission n.[u]“允许，许可，准许”permit n.[c]“许可证，执照”right n.“权利;正确，正当”freedom n.[u]“自由”