51. childish, childlike

　　childish幼稚的。如：It was very childish of him to lose his temper over something so unimportant.

　　childlike孩子般天真的。如：When she won the gold medal, there was childlike smile on her face.

　　52. choose, pick, select, elect

　　choose是一常用词，表一般的“选择”。

　　pick通常用于不需要认真权衡，对比就能做出决定。

　　select侧重“在同类的许多东西中，进行有斟酌的精选”。

　　elect指选举或用其他方法推选人。

　　53. cloth, clothing

　　cloth布。如：I need three yards of cloth to make a suit.

　　clothing衣服(总称)。如：You’d better give all the old clothing away.

　　54. complex, complicated

　　均可表“复杂”。

　　complex为常用词。

　　complicated为正式用词，表由于组成部分太多，相互关系太复杂而不能理解，语气很强。

　　55. compose, consist, constitute

　　compose为常用词，常用被动语态，如用主动语态，主语应用复数形式。如：Twelve men compose a jury.(十二人组成陪审团。)

　　consist表一个整体由几个部分组成(只能用主动语态)。如：The United Kingdom consists of Great Britain and Northern Island.(联合王国是由大不列颠及北爱尔兰组　　成。)

　　constitute为正式用词，与consist相反，表由哪些部分构成整体。如：Twelve months constitute a year.(一年有十二个月。)

　　56. considerable, considerate

　　considerable相当多的，可观的。如：He met a considerable amount of trouble.(他遇到了许多麻烦。)

　　considerate 考虑周到的，体谅的。如：It was considerate of you not to trouble us.(你真体贴人，不打扰我们。)

　　57. consistent, constant, continual, continuous

　　consistent一致的，符合的。如：His action is always consistent with his words.

　　constant不断的，表示持续和惯常的重现，往往没有变化。如：He attributes his health to his constant exercise.

　　continual频频的，不停的，时断时续，中间可有间歇。如：Continual smoking is bad for health.

　　continuous不断延伸的，连续不断的，强调中间无间断。如：Everything in the universe undergoes continuous development and change.

　　58. crack, crash

　　crack(使)破裂，砸开。如：I can crack it, but I can’t break it. (我能把它弄裂，但不能把它弄破。)

　　crash摔坏，坠毁。如：The plane crashed shortly after the take-off.(飞机起飞不久就坠毁了。)

　　59. crawl, creep

　　crawl多指蛇，虫类等身体沿地面或其他表面的动作。如：There is an insect crawling up your back. (有一虫子正在你的背上往上爬。)

　　creep多指哺乳动物或人等用四肢爬行的动物偷偷摸摸无声缓慢的前行动作。如：They arrived late and crept into the classroom.(我们迟到了，便悄悄地溜进教室。)

　　60. cure, treat

　　cure治愈，医治。如：The medicine will cure of your disease.(这药能治好你的病。)

　　cure表示治好，treat只表示“给……治病”。