18.I could tell he was surprised from the 　　 on his face.

A.appearance　 　　　　　　B.view

C.sight　 　　　　　　　　　D.expression

解析：expression此处意指“表情”；appearance表示人的“仪表，外表”；view指“视线，风景”；sight表示“视力”。

答案：D

17.She was putting on her watch when the 　　 broke and it fell to the ground.

A.belt　　　　　　　　　　 　B.strap

C.tie　 　　　　　　　　　　　D.string

解析：strap(表，手提包的)带。belt皮带，腰带；seatbelt(系于飞机座位上的)安全带；tie领带；string细绳子。

答案：B

16.The 　　stuck on the outside of the envelope said “By Air”.

A.label　 　　　　　　　　　　　B.ticket

C.signal　 　　　　　　　　　D.sign

解析：label标签，标记。ticket车票；signal信号；sign记号，指示牌，traffic signs交通指示牌。

答案：A　

15.The old man got into the 　　of storing money under the bed.

A.tradition 　　　　　　　B.habit

C.use　 　　　　　　　　　D.custom

解析：get into the habit of doing sth.意为“养成了做……的习惯”。habit指个人的习惯；custom则指社会的风俗习惯；tradition传统；use用途。

答案：B

14.The author had qualified as a doctor but later gave up the 　　 of medicine for

full­time writing.

A.prescription　 　　　　　B.procedure

C.treatment 　　　　　　D.practice

解析：practice(医生或律师的)业务，生意；prescription药方；procedure程序，手续；treatment治疗，待遇。

答案：D

13.I can't advise you what to do.You must use your own　　.

A.opinion　 　　　　　　　　B.guesswork

C.justice　 　　　　　　　　D.judgement

解析：judgement判断；opinion意见；guesswork猜测；justice正义，公正。

答案：D

12.A successful scientist needs　　 if he wants to make hypothesis(假设)of how processes work and how events take place.

A.permission 　　　　　　B.penetration

C.imagination　　　　 　　vention

解析：imagination想象力；permission允许；penetration穿透； convention惯例，常规。

答案：C

11.The new safety regulations were agreed on after 　　 with the work force.

ference　　　　　　　 　　B.participation

C.intervention　 　　　　　　　sultation

解析：consultation商议：hold a consultation with sb.about sth.(与某人商谈某事)。conference讨论会；participation参加，参与；intervention干预，干涉。

答案：D

10.The generation　　 makes it difficult for parents to understand their children's opinions.

A.division　 　　　　　　B.gap

C.separation　 　　　　　D.interval

解析：generation gap代沟。division分，划分；separation分开；interval间隔，间隙，(幕间或工间)休息；at intervals不时，时时。

答案：B

9.Political parties often differ in their views on various 　　 concerning their own

countries.

A.ways　　　　　　 　B.measures

C.issues　 　　　　　　D.patterns

解析：issue此处意为“重大问题”。way方法，方式；measure措施，虽然填入本题也说得过去，但不够贴切；pattern模式，图案，图样，与题意不符，不能入选。

答案：C