1 These are the motives for doing it.

　　A reasons B excuses

　　C answers D replies

　　2 The river widens considerably as it begins to turn west

　　A extends B stretches

　　C broadens　D bends

　　3 Many economists have given in to the fatal lure of mathematics.

　　A error 　　B puzzle

　　C attraction D contradiction

　　4 With immense relief I stopped running

　　A no 　B 1ittle

　　C scarce　D enormous

　　5 A great deal has been done to remedy the situation

　　A maintain B improve

　　C preserve D protect

　　6 We can no longer tolerate his actions.

　　A put up with B accept

　　C take 　　　D receive

　　7 Loud noises can be irritating.

　　A hateful 　B painful

　　C stimulating　D annoying

　　8 In the background was that eternal hum

　　A long B never-ending

　　C boring D extensive

　　9 The Constitutions vague nature has given it the flexibility to be adapted when circumstances change

　　A imprecise B apparent

　　C clear 　 D easy

　　10Gambling is lawful in Nevada.

　　A enjoyable B irresistible

　　C legal 　　　D profitable

　　11These are the motives for doing it

　　A reasons B excuses

　　C answers　 D replies

　　12The river widens considerably as it begins to turn west

　　A extends B stretches

　　C broadens　D bends

　　13 Many economists have given in to the fatal lure of mathematics.

　　A error 　　B puzzle

　　C attraction　D contradiction

　　14 With immense relief I stopped running.

　　A no 　B little

　　C scarce D enormous

　　15 A great deal has been done to remedy the situation

　　A maintain B improve

　　C preserve　 D protect

　　参考答案：ACCDB ADBAC ACCDB

　　1 These are the motives for doing it.

　　A reasons B excuses

　　C answers D replies

　　2 The river widens considerably as it begins to turn west

　　A extends B stretches

　　C broadens　D bends

　　3 Many economists have given in to the fatal lure of mathematics.

　　A error 　　B puzzle

　　C attraction D contradiction

　　4 With immense relief I stopped running

　　A no 　B 1ittle

　　C scarce　D enormous

　　5 A great deal has been done to remedy the situation

　　A maintain B improve

　　C preserve D protect

　　6 We can no longer tolerate his actions.

　　A put up with B accept

　　C take 　　　D receive

　　7 Loud noises can be irritating.

　　A hateful 　B painful

　　C stimulating　D annoying

　　8 In the background was that eternal hum

　　A long B never-ending

　　C boring D extensive

　　9 The Constitutions vague nature has given it the flexibility to be adapted when circumstances change

　　A imprecise B apparent

　　C clear 　 D easy

　　10Gambling is lawful in Nevada.

　　A enjoyable B irresistible

　　C legal 　　　D profitable

　　11These are the motives for doing it

　　A reasons B excuses

　　C answers　 D replies

　　12The river widens considerably as it begins to turn west

　　A extends B stretches

　　C broadens　D bends

　　13 Many economists have given in to the fatal lure of mathematics.

　　A error 　　B puzzle

　　C attraction　D contradiction

　　14 With immense relief I stopped running.

　　A no 　B little

　　C scarce D enormous

　　15 A great deal has been done to remedy the situation

　　A maintain B improve

　　C preserve　 D protect

　　参考答案：ACCDB ADBAC ACCDB