1. What makes the space shuttle _____ is that it takes off like a rocket but lands like an airplane.
A. exceptional B. strange C. unique D. rare
[答案]C. unique.
[注释]unique(=being the only one of its type)同类事物中独一无二的。如：This stamp is unique; all others like it have been lost or
destroyed.

2. People cannot but feel _____, for they simply cannot understand how he could have made such a stupid mistake.
A. puzzled B. delighted C. induced D. inspired
[答案]A. puzzled.
[注释]be (feel, get) puzzled 感到迷惑、为难。
本题译文：人们不得不感到迷惑，因为他们简直不能理解，他怎么能犯这样愚蠢的错误。

3. When a space shuttle has accomplished its _____, it can be ready for another trip in about two weeks.
A. venture B. mission C. commission D. responsibility
[答案]B. mission.
[注释]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。

4. He’s the kind of man who is fond of _____ compliments to other men’s wives.
A. paying B. saying C. expressing D. showing
[答案]A. paying
[注释]pay a compliment (compliments) to sb.恭维某人。

5. Radar enables the pilot of an airliner to take off, fly and land in _____.
A. danger B. comfort C. continuity D. safety
[答案]D. safety.
[注释]in safety 安全地。从逻辑上看，其他选择均不切题。