1.With painstaking efforts for many years, they have at last ____perfection in their skills.
A) remained B) obtained C) contained D)attained
答案：D attain 达到，臻于。remain 保持。obtain 得到。contain 容纳。
2.Although we had told them not to keep us waiting, they made no____ to speed up deliveries.
A) trial B) attempt C)action D)progress
答案：B make attempt to do sth. 企图，试图，努力去做。
3.Shelly had prepared carefully for her biology examination so that she could be sure of passing it at her first____ .
A)intention B) attempt C) purpose D) desire
答案：B at one’s first attempt 表示“做初次努力，一举(办成某事)”。 其他项与at 不搭配。
4.Niagara Falls is a great tourist____,drawing millions of visitors every year.
A) attention B)attraction C)appointment D)arrangement
答案：B 句子意为：尼亚加拉瀑布是最大的吸引旅游者的景点。attraction 表示“引人入胜的景致或事物”。他不合题意。
5.The car accident was____ to the driver’s violation of the traffic regulations.
A) assigned B) contributed C) attributed D) transferred
答案：C attribute (to)把……归因于。assign 指派、选派( to) ;分配。contribute (lo ) 捐献，捐助，贡献。transfer转移;转变。
6.Convenience foods which are already prepared for cooking are____ in grocery stores.
A) ready B) approachable C) probable D) available
答案：D available可利用的，可获得的，可买到的。ready 准备就绪的。approachable 可接近的，平易近人的。probable 很可能的，大概的。
7.In general, the amount that a student spends for housing should be held to onefifth of the total____ for living expenses.
A) acceptable B) available C) advisable D) applicable
答案：B available可利用的，现有的。acceptable可以接受的。advisable 明智的，可取的。applicable 适当的，合适的，可应用的;有效的，
生效的。句意：支出数额应该控制在生活开支现有总额的五分之一。
8.The _____runner can run 2 miles in fifteen minutes.
A) common B) usual C) average D) general
答案：C average 普通的，平常的，中等的;平均的。average 所指的“普通”，含有接近平均水平、中等水平的意思，如：a student of average intelligent 一个中等智力的学生。本题所要描述的是“一个中等水平的奔跑者”，显然选C正确。至于common“普通的，一般的”，含有经常发生或经常见到的意思，有“普遍”的含义，general“普通的，一般的”，强调很少有例外，含有“大多数”的意思。 usual“一般的”，强
调习惯性、符合规章制度的、或一贯如此的。若选用其中任意一项，句意就不那么明白准确了。
9.Tryon was extremely angry, but cool-headed enough to ____storming into the boss's office.
A) prevent B) prohibit C) turn D) avoid
答案：D 句意为：Tryon 很生气，但他头脑冷静避免了咆哮地冲进老板的办公室。选项中四个动词只有avoid 后面接一个动名词作宾语。
10.The brain wave pattern indicates that REM sleep seems similar to being____ in some respects.
A) wake B) waken C) awake D) awaken
答案：C awake 可作形容词，意为“醒着的”，awake也可作动词。四个词中，wake 与awake 多用作不及物动词; waken 与awaken 多用作及物动词。awake 与awaken 也常用于比喻用法，表示“意识到，领会到，引起人们的兴趣”。
