1.Cross-ocean ____was made possible by the invention of the compass.
A) transmission B)equation C)procession D)navigation 答案：D navigation 航海，航空。transmission 播送，发射;传送。equation 方程(式) ，等式。procession 队伍，行列。walk in procession 列队行进。
2.It is ____ impossible to find a good educational computer program in this part of the country.
A) barely B) hardly C) nearly D) merely
答案：C nearly 几乎，差不多。barely 仅仅，勉强，刚刚。hardly 简直没法，简直不，几乎不。merely只是，仅仅，只不过。
3.Water is a ____ of life.
A) requirement B)necessaries C)demand D)necessity
答案：D requirement和necessaries为同义词，必需品。food, clothing and shelter are the necessaries of life.食品、衣服和住所是生活所必需的。necessity比requirement和necessaries更为强烈，指“缺乏即会死亡之物”。demand 需求，要求。
4.You _____ the class to tell me that ; you could have come up to me afterwards.
A) couldn't have interrupted B) mustn't have interrupted
C) needn' t have interrupted D) can't have interrupted
答案：C needn’t与完成时连用，表示“本用不着做某事”。
5.You, young people, should not take a ____attitude towards life.
A) negative B) declining C) unlike D) doubtful
答案：A negative：消极的。
6.Our government should remain____ and will never support either side.
A) balanced B) middle C) equal D) neutral
答案：D neutral：中立的。
7.When he arrived, he found____ the aged and the sick at home.
A) none but B) none other than C) nothing but D) no other than
答案：A none but 和nothing but 都表示“除……之外没有”或“只有……”。none but 用于指人。
8.I won't listen to your talking____ , for I am too tired.
A) nonsense B) nuisance C) words D) jokes
答案：A nonsense：胡说八道。
9.Do you have any____ about what living beings on other planets would be like?
A) ideal B) comprehension C)notion D)intelligence
答案：A notion 概念，观念，想法，看法。ideal理想。comprehension 理解，理解力。intelligence聪明，智力。
10.____I am well again, I can go on with the expedition.
A) Now that B) In that C) Because D) That
答案：A now that 意为“既然”，用于引导原因状语从句，带有“时间”含义，用于说明一种新情况。in that 和because 也可以引导原因状语从句。because 引导的从句一般位于句末，语气最强，强调直接原因;in that 有“在某一方面，在于”的含义。
11._____you have come, you may as well stay.
A) Since that B) By now C) Since when D) Now that
答案：D since可直接引导从句，不接其他连诃。By now“到目前为止”，只作状语，不能用来连接前后两个句子。
12.A lot of ants are always invading my kitchen. They are a thorough _____.
A) nuisance B) trouble C) worry D) anxiety
答案：A nuisance 令人讨厌的东西或人。
