1. It was no ____________that his car was seen near the bank at the time of the robbery.
A. coincidence B. convention
C. certainty D. complication
2. Using extremely different decorating schemes in adjoining rooms may result in ________ and lack of unity in style.
A. conflict B. confrontation
C. disturbance D. disharmony
3. Because of its intimacy, radio is usually more than just a medium; it is ___________.
A. firm B. company
C. corporation D. enterprise
4. Although the accident did very little ______ to the car, I still suggest that you drive more carefully next time.
A. demolishment B. ruin
C. destruction D. damage
5. My father has been on the__________ in this factory for nearly 20 years.
A. pay pocket B. payoff
C. payroll D. payment
1．【答案】A
【解析】coincidence"巧合"。B項(xiàng)convention"習(xí)慣，習(xí)俗"；C項(xiàng)certainty"肯定"；D項(xiàng)complication"復(fù)雜；并發(fā)癥"。
2．【答案】D
【解析】disharmony"不協(xié)調(diào)"。A項(xiàng)conflict"沖突"；B項(xiàng)confrontation"對(duì)抗"；C項(xiàng)disturbance"干擾"。
3．【答案】B
【解析】company在本句中作"同伴，伙伴"解。A項(xiàng)firm與C項(xiàng)corporation都作"公司"解；D項(xiàng)enterprise是"企業(yè)"。
4．【答案】D
【解析】A項(xiàng)demolishment意為"損壞"；B項(xiàng)ruin意為"損毀"；C項(xiàng)destruction 意為"破壞"；D項(xiàng)damage意為"(可以修復(fù)的)損壞"。前三項(xiàng)均有"不可修復(fù)"或"很難修復(fù)"的意思，只有D項(xiàng)正確。
5．【答案】C
【解析】A項(xiàng)"工資袋"；B項(xiàng)"還清債"；C項(xiàng)"工資表"；D項(xiàng)"支付"。
1. Most nurses are women, but in the higher ranks of the medical profession women are in a ___________.
A. scarcity B. minority
C. minimum D. shortage
2. Fresh fruits and vegetables are generally less expensive when they are in ________.
A. sale B. need C. season D. time
3. The manager gave her his ____________ that the complaint would be investigated.
A. admission B. allowance
C. assurance D. insurance
4. According to the psychoanalyst Sigmund Freud, wisdom comes from the _________ of maturity.
A. fulfillment B. achievement
C. establishment D. accomplishment
5. The remarkable ________ of life on the Galapagos Islands inspired Charles Darwin to establish his theory of evolution.
A. classification B. variety
C. density D. diversion
1．【答案】B
【解析】in a minority占少數(shù)，與Most nurses are women相對(duì)應(yīng)。A項(xiàng)scarcity"缺乏，不足"；a scarcity of teachers師資缺乏。C項(xiàng)minimum"最低限度"；The temperature reached the minimum at midnight．氣溫在半夜達(dá)到了最低點(diǎn)。D項(xiàng)shortage"缺少"；There is a world shortage of fuel．全世界都缺少燃料。
2. 【答案】C
【解析】A項(xiàng)in sale無(wú)此搭配，應(yīng)為on sale，表示"出售，拍賣(mài)"；B項(xiàng)in need表不"需要的"；C項(xiàng)in season"(水果等)應(yīng)時(shí)的，時(shí)令的"；D項(xiàng)in time表示"及時(shí)地，準(zhǔn)時(shí)地"。根據(jù)題意應(yīng)選C項(xiàng)。
3．【答案】C
【解析】A項(xiàng)admission意為"允許進(jìn)人"；B項(xiàng)allowance意為"允許"；C項(xiàng)assurance表示"保證"；D項(xiàng)insurance表示"保險(xiǎn)"。比較詞義，C項(xiàng)適合，為正確答案。
4．【答案】B
【解析】achievement作"達(dá)到，取得"講，指通過(guò)努力逐步達(dá)到某一階段或取得某一成果，如：The achievement of his object inspired him to greater efforts．他達(dá)到了目標(biāo)這件事激勵(lì)他作出更大的努力。fulfillment則作"履行，完成，實(shí)現(xiàn)"講，如：The fulfillment of every task assigned by the Party and the state is his greatest wish．完成黨和國(guó)家交給的各項(xiàng)任務(wù)是他的心愿。establishment 意為"建立，設(shè)立，開(kāi)辦"，如：The establishment of revolutionary committees marks the beginning of the great revolution．革命委員會(huì)的建立標(biāo)志著*的開(kāi)始。accomplishment作"完成"講，與fulfillment意思相近，如：We are fighting for the accomplishment of the Party's tasks．我們正為完成黨的任務(wù)而奮斗。
5．【答案】B
【解析】variety意為"變種，多樣，種種"，如：We demanded more variety in our food．我們要求食物多換花樣。而classification作"分類(lèi)，類(lèi)別，級(jí)別"講，如：The automatic classification of mail according to places where it is to go is very popular in many countries．在很多國(guó)家，按郵件到達(dá)的地方自動(dòng)對(duì)其進(jìn)行分類(lèi)是很普遍的做法。density意為"稠密，密度"，如：Mercury has a much greater density than water．水銀的密度比水大得多。diversion意為"轉(zhuǎn)移，消遣"，如：Chess and billiards are his favorite diversions．下棋和打臺(tái)球是他所喜歡的消遣。
1. Scientists are working hard to come up with a sure solution to the food _________ for mankind.
A. decline B. rarity
C. scarcity D. shortage
2. The managing director took the __________for the accident, although it was not really his fault.
A. guilt B. blame
C. charge D. accusation
3. With all its advantages, the computer is by no means without its ____________.
A. boundaries B. restraints
C. confinements D. limitations
4. Except on official ___________ such as formal receptions, American society has a certain amount of informality.
A. cases B. situations
C. events D. occasions
5. The young couple were quite excited by the _________ of having their first child.
A. perspective B. prospect
C. future D. foresight
1．【答案】D
【解析】D項(xiàng)shortage n．"不足，缺少"符合題意。其他三項(xiàng)中，decline n．"下降，減少，衰落"；rarity n．"稀少，少見(jiàn)的人或東西"(常與不定冠詞連用)；scarcity n．"缺乏，稀少"，都與題意不符。
2．【答案】B
【解析】B項(xiàng)blame n．"(過(guò)錯(cuò)，事故的)責(zé)任；責(zé)怪，責(zé)備"符合題意。如：put／lay／bring the blame on sb．"怪在某人身上"；The blame rests on sb．"責(zé)任在某人"；take the blame on oneself for sth．／bear the blame for sth．"承擔(dān)……的責(zé)任"。其他三項(xiàng)中，guilt n．"罪，罪責(zé)"；charge n．作"罪名，指控"解時(shí)不與take搭配；take charge of sth．表示"對(duì)……負(fù)責(zé)，接管"的意思；accusation n．"指責(zé)，控告"(不說(shuō)take accusation for sth．)，都與題意不符。
3．【答案】D
【解析】D項(xiàng)limitation n．"限制，限度，極限"符合題意。其他三項(xiàng)中，boundary n．"分界線，邊界"；restraint n．"(情感的)抑制，限制，克制"；confinement n．"限制(在范圍內(nèi))；監(jiān)禁"，都與題意不符。
4．【答案】D
【解析】D項(xiàng)occasions"重大活動(dòng)，盛會(huì)；時(shí)刻，場(chǎng)合；時(shí)機(jī)，機(jī)會(huì)"符合題意。On official occasions"在正式場(chǎng)合"；on occasion(s)"有時(shí)，間或"；on such occasions"在這樣的場(chǎng)合"；on many／several occasions"有許多次／有好幾次"；on one occasion"有一次"；on the occasion of"在……的時(shí)候，在……之際"。其他三項(xiàng)中，case n．"情況，事實(shí)；案件"(注：case與in而不與on搭配)；situation n．"形勢(shì)，局面；環(huán)境，狀況；地點(diǎn)，位置"；(一般與介詞in相搭配)；event n．"事件；(體育)比賽項(xiàng)目"(與介詞in而不與on搭配)，都與題意不符。
5．【答案】B
【解析】B項(xiàng)prospect n．"前景；前途；展望(一般作不可數(shù)名詞用，與the連用，如the prospect of a holiday；the prospect of owning one's own house)"，符合題意。其他三項(xiàng)中，perspective n．"遠(yuǎn)景，景觀；透視畫(huà)法"；future n．"將來(lái)，未來(lái)；前景，前途"(多與不定冠詞連用，如a bright future)；foresight n．"遠(yuǎn)見(jiàn)；預(yù)見(jiàn)性；預(yù)言的能力"，都與題意不符。
1. So many children have bought the balloons that the store is now out of ____________.
A. stuff B. material
C. stock D. staff
2. This is the ___________ to an improvement of their living conditions.
A. key B. decision
C. essence D. alternative
3. Your __________ is the round of things that you usually do each day.
A. practice B. habit
C. routine D. custom
4. Farmers are more anxious for rain than people in cities because they have more at ___________.
A. danger B. stake C. loss D. threat
5. A ___________of the long report by the budget committee was submitted to the mayor for approval.
A. shorthand B. scheme C. schedule D. sketch
1．【答案】C
【解析】C項(xiàng)stock n．"庫(kù)存，現(xiàn)貨，備料(如have sth．in stock有存貨；sth．is out of stock沒(méi)有存貨；The store is out of stock of sth．商店里某商品沒(méi)有存貨)"與題意相符。其他三項(xiàng)中，stuff n．"原料，材料，東西"；material n． "原料，材料；資料，素材"；staff n．"全體職工，全體人員；參謀部"，都與題意不符。
2．【答案】A
【解析】A項(xiàng)key(to)n．"方法，關(guān)鍵；題解，答案(the key to world peace世界和平的關(guān)鍵；a key to the grammar exercises語(yǔ)法練習(xí)的答案)"，符合題意。其他三項(xiàng)中，decision n．"決定"；essence n．"本質(zhì)，實(shí)質(zhì)，要素"；alternative(to)n．"取舍，抉擇；供選擇的東西"，都與題意不符。
3．【答案】C
【解析】C項(xiàng)routine n．"(每天要做的)例行公事，慣常程序"符合題意。其他三項(xiàng)中，practice n．"業(yè)務(wù)；實(shí)踐；練習(xí)；習(xí)慣做法"；habit n．"習(xí)慣"；custom n."風(fēng)俗，習(xí)慣，慣例"都與題意不符。
4．【答案】B
【解析】B項(xiàng)stake n．"利害關(guān)系，股份；賭本，賭注(have a stake in sth．在……方面有利害關(guān)系；be at stake／have sth．a(chǎn)t stake關(guān)系到……；……處于危險(xiǎn)之中；是得到或喪失……的問(wèn)題，如：The peace is at stake；He has a lot at stake in the venture．)"符合題意。其他三項(xiàng)中，可以說(shuō)be in danger，不說(shuō)be at danger；可以說(shuō)at a loss"不知所措，不知如何是好"；不說(shuō)at loss；可以說(shuō)under [the] threat of"處于……的威脅下"；不說(shuō)at threat。因此只有B項(xiàng)為正確答案。
5．【答案】D
【解析】D項(xiàng)sketch n．"梗概，大意；草圖，略圖；素描，速寫(xiě)"符合題意。其他三項(xiàng)中，shorthand n．"速記"；scheme n．"計(jì)劃，方案；陰謀"；schedule n．"時(shí)間表，時(shí)刻表，日程安排表"，都與題意不符。
1. The building collapsed because its foundation was not strong enough to __________ the weight of the building.
A. subside B. idealize C. initiate D. sustain
2. Some workers in the nuclear power station were exposed to high levels of __________.
A. radiation B. cancer C. microwaves D. high temperature
3. A ___________ refers to an animal that is born from its mother's body, not from an egg, and drinks its mother's milk as a baby.
A. mammoth B. penguin C. mosquito D. mammal
4. The municipal planning commission said that their financial outlook for the next year was optimistic. They expect increased tax___________.
A. privileges B. efficiency C. revenues D. validity
5. The problem of pollution as well as several other issues is going to be discussed when the Congress is in __________ again next spring.
A. convention B. conference C. session D. assembly
1．【答案】D
【解析】四個(gè)選項(xiàng)的意思分別是subside"下沉"；idealize"理想化"；initiate"發(fā)起"；sustain"支撐，撐住"。句意是：建筑物倒塌是因?yàn)樗牡鼗蛔阋灾握麄€(gè)建筑物的重量。所以正確答案是D。
2．【答案】A
【解析】A項(xiàng)radiation"輻射，放射線，放射物"；B項(xiàng)cancer"癌癥"；C項(xiàng)microwaves"微波"；D項(xiàng)high temperature"高溫"。題中講的是核電站，與之相對(duì)應(yīng)的應(yīng)該是核輻 射，故本題的答案為A。
3．【答案】D
【解析】A項(xiàng)mammoth"猛犸象，龐然大物"；B項(xiàng)penguin"企鵝"；C項(xiàng)mosquito"蚊子"；D項(xiàng)mammal"哺乳動(dòng)物"。根據(jù)句子中所給的信息：誕生于母體，嬰孩時(shí)飲用母親的奶汁，這些都是哺乳動(dòng)物的特征，本題中所填的詞代表這一類(lèi)動(dòng)物，所以A不對(duì)，B、C兩項(xiàng)所提到的動(dòng)物不具有句子中所表達(dá)的物種特征，也不對(duì)。故本題的答案為D。
4．【答案】C
【解析】C項(xiàng)revenues"收入，國(guó)家的收入，稅收"符合題意。其他三項(xiàng)中，A項(xiàng)privileges"特權(quán)，特別待遇，基本公民權(quán)利"，B項(xiàng)efficiency"效率，功效"，D項(xiàng)、validity"有效性，合法性，正確性"，都與題意不符。本題是說(shuō)市政計(jì)劃委員會(huì)說(shuō)他們下一年度的財(cái)政前景是樂(lè)觀的。他們期望提高稅收。因此C項(xiàng)為正確答案。
5．【答案】C
【解析】C項(xiàng)session"會(huì)議，開(kāi)庭"符合題意。其他三項(xiàng)中，A項(xiàng)convention"大會(huì)，協(xié)定，習(xí)俗，慣例"，B項(xiàng)conference"會(huì)議，討論會(huì)，協(xié)商會(huì)"，D項(xiàng)assembly"集合，裝配，集會(huì)，集結(jié)，匯編"，都與題意不符。本題是說(shuō)當(dāng)明年春天議會(huì)再度開(kāi)會(huì)時(shí)，污染問(wèn)題和其他幾個(gè)問(wèn)題將被討論。因此C項(xiàng)為正確答案。
A. coincidence B. convention
C. certainty D. complication
2. Using extremely different decorating schemes in adjoining rooms may result in ________ and lack of unity in style.
A. conflict B. confrontation
C. disturbance D. disharmony
3. Because of its intimacy, radio is usually more than just a medium; it is ___________.
A. firm B. company
C. corporation D. enterprise
4. Although the accident did very little ______ to the car, I still suggest that you drive more carefully next time.
A. demolishment B. ruin
C. destruction D. damage
5. My father has been on the__________ in this factory for nearly 20 years.
A. pay pocket B. payoff
C. payroll D. payment
1．【答案】A
【解析】coincidence"巧合"。B項(xiàng)convention"習(xí)慣，習(xí)俗"；C項(xiàng)certainty"肯定"；D項(xiàng)complication"復(fù)雜；并發(fā)癥"。
2．【答案】D
【解析】disharmony"不協(xié)調(diào)"。A項(xiàng)conflict"沖突"；B項(xiàng)confrontation"對(duì)抗"；C項(xiàng)disturbance"干擾"。
3．【答案】B
【解析】company在本句中作"同伴，伙伴"解。A項(xiàng)firm與C項(xiàng)corporation都作"公司"解；D項(xiàng)enterprise是"企業(yè)"。
4．【答案】D
【解析】A項(xiàng)demolishment意為"損壞"；B項(xiàng)ruin意為"損毀"；C項(xiàng)destruction 意為"破壞"；D項(xiàng)damage意為"(可以修復(fù)的)損壞"。前三項(xiàng)均有"不可修復(fù)"或"很難修復(fù)"的意思，只有D項(xiàng)正確。
5．【答案】C
【解析】A項(xiàng)"工資袋"；B項(xiàng)"還清債"；C項(xiàng)"工資表"；D項(xiàng)"支付"。
1. Most nurses are women, but in the higher ranks of the medical profession women are in a ___________.
A. scarcity B. minority
C. minimum D. shortage
2. Fresh fruits and vegetables are generally less expensive when they are in ________.
A. sale B. need C. season D. time
3. The manager gave her his ____________ that the complaint would be investigated.
A. admission B. allowance
C. assurance D. insurance
4. According to the psychoanalyst Sigmund Freud, wisdom comes from the _________ of maturity.
A. fulfillment B. achievement
C. establishment D. accomplishment
5. The remarkable ________ of life on the Galapagos Islands inspired Charles Darwin to establish his theory of evolution.
A. classification B. variety
C. density D. diversion
1．【答案】B
【解析】in a minority占少數(shù)，與Most nurses are women相對(duì)應(yīng)。A項(xiàng)scarcity"缺乏，不足"；a scarcity of teachers師資缺乏。C項(xiàng)minimum"最低限度"；The temperature reached the minimum at midnight．氣溫在半夜達(dá)到了最低點(diǎn)。D項(xiàng)shortage"缺少"；There is a world shortage of fuel．全世界都缺少燃料。
2. 【答案】C
【解析】A項(xiàng)in sale無(wú)此搭配，應(yīng)為on sale，表示"出售，拍賣(mài)"；B項(xiàng)in need表不"需要的"；C項(xiàng)in season"(水果等)應(yīng)時(shí)的，時(shí)令的"；D項(xiàng)in time表示"及時(shí)地，準(zhǔn)時(shí)地"。根據(jù)題意應(yīng)選C項(xiàng)。
3．【答案】C
【解析】A項(xiàng)admission意為"允許進(jìn)人"；B項(xiàng)allowance意為"允許"；C項(xiàng)assurance表示"保證"；D項(xiàng)insurance表示"保險(xiǎn)"。比較詞義，C項(xiàng)適合，為正確答案。
4．【答案】B
【解析】achievement作"達(dá)到，取得"講，指通過(guò)努力逐步達(dá)到某一階段或取得某一成果，如：The achievement of his object inspired him to greater efforts．他達(dá)到了目標(biāo)這件事激勵(lì)他作出更大的努力。fulfillment則作"履行，完成，實(shí)現(xiàn)"講，如：The fulfillment of every task assigned by the Party and the state is his greatest wish．完成黨和國(guó)家交給的各項(xiàng)任務(wù)是他的心愿。establishment 意為"建立，設(shè)立，開(kāi)辦"，如：The establishment of revolutionary committees marks the beginning of the great revolution．革命委員會(huì)的建立標(biāo)志著*的開(kāi)始。accomplishment作"完成"講，與fulfillment意思相近，如：We are fighting for the accomplishment of the Party's tasks．我們正為完成黨的任務(wù)而奮斗。
5．【答案】B
【解析】variety意為"變種，多樣，種種"，如：We demanded more variety in our food．我們要求食物多換花樣。而classification作"分類(lèi)，類(lèi)別，級(jí)別"講，如：The automatic classification of mail according to places where it is to go is very popular in many countries．在很多國(guó)家，按郵件到達(dá)的地方自動(dòng)對(duì)其進(jìn)行分類(lèi)是很普遍的做法。density意為"稠密，密度"，如：Mercury has a much greater density than water．水銀的密度比水大得多。diversion意為"轉(zhuǎn)移，消遣"，如：Chess and billiards are his favorite diversions．下棋和打臺(tái)球是他所喜歡的消遣。
1. Scientists are working hard to come up with a sure solution to the food _________ for mankind.
A. decline B. rarity
C. scarcity D. shortage
2. The managing director took the __________for the accident, although it was not really his fault.
A. guilt B. blame
C. charge D. accusation
3. With all its advantages, the computer is by no means without its ____________.
A. boundaries B. restraints
C. confinements D. limitations
4. Except on official ___________ such as formal receptions, American society has a certain amount of informality.
A. cases B. situations
C. events D. occasions
5. The young couple were quite excited by the _________ of having their first child.
A. perspective B. prospect
C. future D. foresight
1．【答案】D
【解析】D項(xiàng)shortage n．"不足，缺少"符合題意。其他三項(xiàng)中，decline n．"下降，減少，衰落"；rarity n．"稀少，少見(jiàn)的人或東西"(常與不定冠詞連用)；scarcity n．"缺乏，稀少"，都與題意不符。
2．【答案】B
【解析】B項(xiàng)blame n．"(過(guò)錯(cuò)，事故的)責(zé)任；責(zé)怪，責(zé)備"符合題意。如：put／lay／bring the blame on sb．"怪在某人身上"；The blame rests on sb．"責(zé)任在某人"；take the blame on oneself for sth．／bear the blame for sth．"承擔(dān)……的責(zé)任"。其他三項(xiàng)中，guilt n．"罪，罪責(zé)"；charge n．作"罪名，指控"解時(shí)不與take搭配；take charge of sth．表示"對(duì)……負(fù)責(zé)，接管"的意思；accusation n．"指責(zé)，控告"(不說(shuō)take accusation for sth．)，都與題意不符。
3．【答案】D
【解析】D項(xiàng)limitation n．"限制，限度，極限"符合題意。其他三項(xiàng)中，boundary n．"分界線，邊界"；restraint n．"(情感的)抑制，限制，克制"；confinement n．"限制(在范圍內(nèi))；監(jiān)禁"，都與題意不符。
4．【答案】D
【解析】D項(xiàng)occasions"重大活動(dòng)，盛會(huì)；時(shí)刻，場(chǎng)合；時(shí)機(jī)，機(jī)會(huì)"符合題意。On official occasions"在正式場(chǎng)合"；on occasion(s)"有時(shí)，間或"；on such occasions"在這樣的場(chǎng)合"；on many／several occasions"有許多次／有好幾次"；on one occasion"有一次"；on the occasion of"在……的時(shí)候，在……之際"。其他三項(xiàng)中，case n．"情況，事實(shí)；案件"(注：case與in而不與on搭配)；situation n．"形勢(shì)，局面；環(huán)境，狀況；地點(diǎn)，位置"；(一般與介詞in相搭配)；event n．"事件；(體育)比賽項(xiàng)目"(與介詞in而不與on搭配)，都與題意不符。
5．【答案】B
【解析】B項(xiàng)prospect n．"前景；前途；展望(一般作不可數(shù)名詞用，與the連用，如the prospect of a holiday；the prospect of owning one's own house)"，符合題意。其他三項(xiàng)中，perspective n．"遠(yuǎn)景，景觀；透視畫(huà)法"；future n．"將來(lái)，未來(lái)；前景，前途"(多與不定冠詞連用，如a bright future)；foresight n．"遠(yuǎn)見(jiàn)；預(yù)見(jiàn)性；預(yù)言的能力"，都與題意不符。
1. So many children have bought the balloons that the store is now out of ____________.
A. stuff B. material
C. stock D. staff
2. This is the ___________ to an improvement of their living conditions.
A. key B. decision
C. essence D. alternative
3. Your __________ is the round of things that you usually do each day.
A. practice B. habit
C. routine D. custom
4. Farmers are more anxious for rain than people in cities because they have more at ___________.
A. danger B. stake C. loss D. threat
5. A ___________of the long report by the budget committee was submitted to the mayor for approval.
A. shorthand B. scheme C. schedule D. sketch
1．【答案】C
【解析】C項(xiàng)stock n．"庫(kù)存，現(xiàn)貨，備料(如have sth．in stock有存貨；sth．is out of stock沒(méi)有存貨；The store is out of stock of sth．商店里某商品沒(méi)有存貨)"與題意相符。其他三項(xiàng)中，stuff n．"原料，材料，東西"；material n． "原料，材料；資料，素材"；staff n．"全體職工，全體人員；參謀部"，都與題意不符。
2．【答案】A
【解析】A項(xiàng)key(to)n．"方法，關(guān)鍵；題解，答案(the key to world peace世界和平的關(guān)鍵；a key to the grammar exercises語(yǔ)法練習(xí)的答案)"，符合題意。其他三項(xiàng)中，decision n．"決定"；essence n．"本質(zhì)，實(shí)質(zhì)，要素"；alternative(to)n．"取舍，抉擇；供選擇的東西"，都與題意不符。
3．【答案】C
【解析】C項(xiàng)routine n．"(每天要做的)例行公事，慣常程序"符合題意。其他三項(xiàng)中，practice n．"業(yè)務(wù)；實(shí)踐；練習(xí)；習(xí)慣做法"；habit n．"習(xí)慣"；custom n."風(fēng)俗，習(xí)慣，慣例"都與題意不符。
4．【答案】B
【解析】B項(xiàng)stake n．"利害關(guān)系，股份；賭本，賭注(have a stake in sth．在……方面有利害關(guān)系；be at stake／have sth．a(chǎn)t stake關(guān)系到……；……處于危險(xiǎn)之中；是得到或喪失……的問(wèn)題，如：The peace is at stake；He has a lot at stake in the venture．)"符合題意。其他三項(xiàng)中，可以說(shuō)be in danger，不說(shuō)be at danger；可以說(shuō)at a loss"不知所措，不知如何是好"；不說(shuō)at loss；可以說(shuō)under [the] threat of"處于……的威脅下"；不說(shuō)at threat。因此只有B項(xiàng)為正確答案。
5．【答案】D
【解析】D項(xiàng)sketch n．"梗概，大意；草圖，略圖；素描，速寫(xiě)"符合題意。其他三項(xiàng)中，shorthand n．"速記"；scheme n．"計(jì)劃，方案；陰謀"；schedule n．"時(shí)間表，時(shí)刻表，日程安排表"，都與題意不符。
1. The building collapsed because its foundation was not strong enough to __________ the weight of the building.
A. subside B. idealize C. initiate D. sustain
2. Some workers in the nuclear power station were exposed to high levels of __________.
A. radiation B. cancer C. microwaves D. high temperature
3. A ___________ refers to an animal that is born from its mother's body, not from an egg, and drinks its mother's milk as a baby.
A. mammoth B. penguin C. mosquito D. mammal
4. The municipal planning commission said that their financial outlook for the next year was optimistic. They expect increased tax___________.
A. privileges B. efficiency C. revenues D. validity
5. The problem of pollution as well as several other issues is going to be discussed when the Congress is in __________ again next spring.
A. convention B. conference C. session D. assembly
1．【答案】D
【解析】四個(gè)選項(xiàng)的意思分別是subside"下沉"；idealize"理想化"；initiate"發(fā)起"；sustain"支撐，撐住"。句意是：建筑物倒塌是因?yàn)樗牡鼗蛔阋灾握麄€(gè)建筑物的重量。所以正確答案是D。
2．【答案】A
【解析】A項(xiàng)radiation"輻射，放射線，放射物"；B項(xiàng)cancer"癌癥"；C項(xiàng)microwaves"微波"；D項(xiàng)high temperature"高溫"。題中講的是核電站，與之相對(duì)應(yīng)的應(yīng)該是核輻 射，故本題的答案為A。
3．【答案】D
【解析】A項(xiàng)mammoth"猛犸象，龐然大物"；B項(xiàng)penguin"企鵝"；C項(xiàng)mosquito"蚊子"；D項(xiàng)mammal"哺乳動(dòng)物"。根據(jù)句子中所給的信息：誕生于母體，嬰孩時(shí)飲用母親的奶汁，這些都是哺乳動(dòng)物的特征，本題中所填的詞代表這一類(lèi)動(dòng)物，所以A不對(duì)，B、C兩項(xiàng)所提到的動(dòng)物不具有句子中所表達(dá)的物種特征，也不對(duì)。故本題的答案為D。
4．【答案】C
【解析】C項(xiàng)revenues"收入，國(guó)家的收入，稅收"符合題意。其他三項(xiàng)中，A項(xiàng)privileges"特權(quán)，特別待遇，基本公民權(quán)利"，B項(xiàng)efficiency"效率，功效"，D項(xiàng)、validity"有效性，合法性，正確性"，都與題意不符。本題是說(shuō)市政計(jì)劃委員會(huì)說(shuō)他們下一年度的財(cái)政前景是樂(lè)觀的。他們期望提高稅收。因此C項(xiàng)為正確答案。
5．【答案】C
【解析】C項(xiàng)session"會(huì)議，開(kāi)庭"符合題意。其他三項(xiàng)中，A項(xiàng)convention"大會(huì)，協(xié)定，習(xí)俗，慣例"，B項(xiàng)conference"會(huì)議，討論會(huì)，協(xié)商會(huì)"，D項(xiàng)assembly"集合，裝配，集會(huì)，集結(jié)，匯編"，都與題意不符。本題是說(shuō)當(dāng)明年春天議會(huì)再度開(kāi)會(huì)時(shí)，污染問(wèn)題和其他幾個(gè)問(wèn)題將被討論。因此C項(xiàng)為正確答案。