212.[答案]D. at the mercy of.[详解]at the mercy of在......支配下：The ship was at the mercy of the waves.(这艘船任凭风浪摆布。) at the expense of以......为代价，靠牺牲......;in the way of碍......事;at the risk of冒......的危险：1)He devoted his time to football at the expense of his studies.(他牺牲学习把时间都花在足球上。) 2)Her social lift got in the way of her studies.(她的社交生活妨碍了她的学习。) 3)We do this at the risk of our lives and liberties.(我们冒丢掉生命和丧失自由的危险做这件事。)本题译文：显然，这家小杂铺任凭其债主的摆布。

211.[答案]A. looked forward to.[详解]Look forward to 期待，盼望。参阅Ⅲ.109.; call forth引起，唤起。参阅Ⅲ.29注释。 Call for需要，参阅Ⅲ.26注释。Look up to尊敬。

210.[答案]D. verified.[详解]verify(=prove the truth of)证实，证明：1)It was easy to verify his statements.(很容易证实他说的话。) 2)Later findings verified the scientist's theory(后来的各种发现证明这位科学家的理论是对的。) identify识别，鉴别;signify表示，意味，要紧;有重要性：1)He signified that he agreed by nodding.(他点头表示同意。) 2)Never mind, it doesn't signify.(没事儿，这无关紧要。)

209.[答案]c. the one.[详解]a million to one百万分之一，意为“几乎没有什么可能”。

208.[答案]B. stated.[详解]state此处意为“(=make sth. know, announce)宣布，通告，声明(口头的或书面的)”，如：It is stated that all the accident were killed.(据宣布，事故中全部人员无一幸免。)suggest建议，是表示欲望意义的动词，从句中要用虚拟语气(should +动词原形)。Note(=notice)“注意到”，如：It was noted that the temperature rose during this time.

207.[答案]D. standard.[详解]living standard生活水准。

206.[答案]d. scale.[详解]scale在此题中意指“(实物与地图、图解等代表物间的)比例，比例尺”.be drawn to be standard scale of 1/100,000(按照十万分之一标准比例尺绘制)。

205.[答案]D. safety.[详解]in safety安全地。从逻辑上看，其他选择均不切题。

204.[答案]A. paying[详解]pay a compliment (compliments) to sb.恭维某人。

203.[答案]B. mission.[详解]mission通常指一种特殊的、特定的且有一定难度的使命或工作，常与accomplish, complete等词搭配，如：accomplish a historic mission完成一项历史使命。Venture冒险;常指商业上的冒险投机。例如：He declined the business venture. Commission委任;代理;佣金。He often goes beyond his commission.(他时常越权。)responsibility责任。

　本题译文：当航天飞机完成了它的使命，它能在大约两周内做好准备再次航行。