學習語法首先要學習句子，因為句子是人類語言的核心，通過對句子的分析理解，可以更好的掌握語法。下面是小編整理的大學英語四級語法詞匯練習及解析（7），希望對你的語法學習有所幫助！
61. He proved himself a ________ successor to the former Prime Minister.
A. worthwhile B. worthiness C. worthy D. worth
62. Your radio is too loud, turn the ________ down.
A. volume B. voice C. sound D. tone
63. The Channel Tunnel is one of the biggest engineering projects ever ________.
A. understated B. undertaken C. undergone D. underneath
64. He comes from a poor country village in the mountains, so it's very hard for him to pay the whole school year's ________ at one time.
A. money B. fare C. fees D. tuition
65. Anthony is a very ________ person and never wastes anything.
A. miserly B. thrifty C. economic D. conservative
66. He is seriously ill because his girlfriend has just deserted him. Why don't you try some occupational ________ to remove his mind from distress?
A. operation B. therapy C. injection D. medicine
67. The government used their emergency powers to ________ the truth about the accident.
A. suppress B. manipulate C. control D. manage
68. The ________ of the member countries is supposed to be held recently at Geneva.
A. summit B. summary C. suffering D. summon
69. The ghostly presence was just a (n)_________ sensation of some people.
A. objective B. subjunctive C. subjective D. objected
70. The company is on the verge of bankruptcy, and thousands of jobs are at ________.
A. danger B. loss C. threat D. stake
61. 答案為C。worthwhile 意思是"值得花費時間、金錢或精力的"。worthy 可以表示"值得尊重或者考慮的"，用這一意思時通常做定語。worthiness 是worthy 的名詞形式。worth 用作表語，意思是"有某種價值的;值得(做某事)"。本句需要填入一個作定語的形容詞，所以， C 是正確答案。
62. 答案為A。volume 意思是"音量，響度"，voice 意思是"嗓音"，sound 意思是"聲，聲音，聲響"，tone 指"音調(diào)，音質(zhì);語氣，腔調(diào);(樂器的)音質(zhì)，音色"。
63. 答案為B。understate 意思是"有節(jié)制地陳述或表達;少說，少報"，undertake 意思是"承擔，負起..的責任"，undergo 意為"經(jīng)歷，經(jīng)受;接受，承受"，underneath 意為"在.. 的下面(介詞);在下面，向下(副詞);底部，底面(名詞)"。
64. 答案為D。money 泛指"金錢，貨幣";fare 指(公共汽車、輪船、計程車等的)票價; fee 指付給私人教師、醫(yī)生等的服務費，酬金;tuition 尤指大專院校的學費。
65. 答案為B。miserly 意思是"似守財奴的，吝嗇的"，thrifty 意思是"節(jié)檢的，節(jié)約的"， economic 意思是"經(jīng)濟學的，經(jīng)濟的"，conservative 意思是"保守的，守舊的"。
66. 答案為B。operation 指"手術"，therapy 指"療法"，injection 指"注射"，medicine 指"醫(yī)術，醫(yī)學;藥"。occupational therapy 指"職業(yè)療法"，即給患者創(chuàng)造性或生產(chǎn)性工作以治療其身心某些疾病的方法。
67. 答案為A。suppress 意思是"阻止..被知道或看到"，manipulate 指"熟練地控制或操縱(某事物)"，control 意思是"控制"，manage 意思是"負責(謀事物)，管理，經(jīng)營"。
68. 答案為A。summit 意思是"峰會，首腦會晤"，summary 意為"小結"，suffering 指肉體或內(nèi)心的痛苦，summon 意為"傳喚，傳訊;(法院的)傳票"。
69. 答案為C。objective 意為"客觀的"，subjunctive 意為"虛擬語氣的"，subjective 意為"主觀的"，object 意思是"反對，抗議"，作動詞。
70. 答案為D 。at a loss 意思是"不知如何是好，茫然，不知所措"，at stake 指"兇吉難卜，好壞無法預料"?？梢哉fin danger 或under threat,但不可以說at danger 或at threat
