142.[答案]A. composed of.

　[详解]be composed of由......组成。Consist of由......组成，是不及物动词，不能用被动语态，故不合题意。

141.[答案]B. comply.[详解]comply with(=act in accordance with a demand, order, rule, etc.)遵守：People who refuse to comply with the law will be punished.(拒绝遵守法律者将受到惩罚。)conform(to)使一致，符合;conform to rules符合规则;conform to the customs of society(遵从社会习俗);consent to 同意，赞同;consent to a plan(赞同计划)。

140.[答案]D. fluctuations.

　[详解]fluctuations波动;waves波浪;alterations(部分)改变，变更;vibrations(物理学上)振动。

139.[答案]A. diagnosed.[详解]diagnose...as 把......诊断为......。本题译文：玛丽的病现已诊断为肝炎。

138.[答案]C. arise.[详解]arise(=come into being, appear, happen)产生，发生：Difficulties will arise as we do the work.(我们做这项工作时将会发生困难。)arouse 唤起，激起，唤醒;rise 上升;abide (by)遵守。

　本题译文：当中学毕业年龄上升到16岁时，很可能产生完全新的情况。

137.[答案]A. Incidentally.[详解]incidentally(=by the way)附带地，顺便：Fred said, incidentally, that he had no dinner.(顺便提一下，福来德那时说，他还没吃晚饭。)accidentally(=by chance)偶然地：I met with an old friend of mine accidentally last week.(上星期我偶然碰到一位老朋友。)occasionally (=from time to time, not regularly)不时地，偶尔：We get visitors here occasionally.(我们偶尔在此接游客。)subsequently(=afterwards, later) At first we thought we would go; but subsequently we learned we were needed at home.(起初,我们想离开;但随后我们得知家里需要我们。)

136.[答案]A. process.[详解]process(=connected series of actions, or series of operations) 过程：By what process is cloth made form wool?(经过什么过程羊毛织成呢料?)practice(=the doing of something of, performance or repeated exercise, etc.)实习，练习;开业: She is doing her practice at the piano.(她在练习弹钢琴。)procedure(=the regular order of doing things)程序：the usual procedure at a meeting(开会的通常程序)。Program(=plan of what is to be done or list of items or events)课程，计划，大纲：What is the program for tomorrow ?(明天上什么课?)

135.[答案]D. make out.[详解]make out(=identify and see with effort or difficulty)辨认出。see through参阅Ⅲ，151,注释:此处see through还可表示“看穿......(=understand the real meaning of or reason for; realize the falseness of)”： 1)The teacher saw through the boy's story of having to help at home. (=The teacher knew his story was not true; it was just an excuse.) 2) He can't fool her. She sees him through every time.

　see off送行;make up构成，组成，拼凑;弥补，赔偿;化装，编造：1)编造：John made up the joke about the talking dog. 2)弥补：Bob must make up the work he missed. 3)凑足： We need one more to make up the dozen. 4)化装： The actors were making up when we arrived. 5)构成：Nine players make up a team.

134.[答案]B. left.[详解]leave sb./sth. alone不惹，不管，不碰：Leave the box alone.(别碰那个盒子。)

133.[答案]B. gap.[详解]generation gap 代沟。

　division分，划分;separation分开;interval间隔，间隙;(幕间或工间)休息。at intervals 不时，时时