1.By moving the radar beam around slowly in circles, we can ____ the surroundings.
A) explore B) expose C)exploit D)expand
答案：A explore 考察，勘探。expose 暴露，揭露，揭示。exploit 剥削;开发，利用。expand (使)膨胀，扩大。
2.Many Europeans _____the continent of Africa in the 19th century.
A) exploded B) explored C)exposed D)expanded
答案：B explore 考察，勘探。explode (使)爆炸。expose 暴露，显露，揭露.。expand (使) 膨胀，扩大。
3.Nearly everyone is ____ to risk of some sort.
A) discovered B) exposed C) disclosed D) exported
答案：B be exposed to 面临。
4.Too much ____to X-rays can cause skin burns, cancer or other damage to the body.
A) disclosure B) exhibition C) contact D) exposure
答案：D exposure 暴露，揭露。disclosure 透露，显露出。exhibition 表现出;表演，表演赛;展览会。contact接触，联系;联络人。
5.China has greatly ____its influence in world affairs.
A) spread B) scattered C) extended D) contributed
答案：C extend 延伸，延续，继续。spread 铺开，展开，伸开。scatter 撒，洒。contribute 捐献，捐赠。
6.It is quite necessary for a qualified teacher to have good manners and____knowledge.
A) extensive B) expansive C)intensive D)expensive
答案：A extensive 意为“广阔的，广泛的”。expansive 意为“扩大的，膨胀的”。intensive 意为“加强的，集中的”。expensive 意为“昂贵的”。
7.On a small farm in a dry climate one should not grow crops that need____space and a lot of water to ripen.
A) considerable B) significant C)extensive D)quantitative
答案：C extensive 广泛的，广阔的。Considerable 相当的，significant 重要的。 quantitative 数量上的。
8.The newspaper did not mention the of the damage caused by the fire.
A) range B) level C) extent D) quantity
答案：C 能与of the damage 搭配的只能是extent，表示“损失的程度”。 range 范围，level水平标准，quantity 数量，均不合题意。
9.The most familiar graying of the hair and the wrinkling of the skin.
A) exterior B) outside C) external D) outward
答案：C 因为external指“(物体或身体的)外部的”。exterior指“(核心以外的)外部的”。outside 指“(某物的) 外表的，或靠近外表的”。outward 指“外向的”。
10.In order to show his boss what a careful worker he was, he took____ troubler the figures.
A) extensive B) span C) extra D) supreme
答案： C 句子意为：多查一次数据是额外的麻烦。extensive 广泛的，spare 业余的和supreme 最高的均不合题意。
