理工類：詞匯選項characteristic

　　1 Ambition is a characteristic of all successful businessmen.

　　A factor

　　B feature

　　C sign

　　D symbol

　　2 All living organisms， regardless of their unique identity， have certain biological， chemic and physical characteristics in common.

　　A as result of

　　B considering

　　C on purpose

　　D whatever

　　3 The immense change of the city astonished every member of the conference.

　　A surprised

　　B interested

　　C bored

　　D excited

　　4 The nursery is bright and cheerful.

　　A pleasant

　　B colorful

　　C fashionable

　　D unforgettable

　　5 Practically all species of animals communicate either through sounds or through a large repertory of soundless codes.

　　A Simultaneously

　　B Almost

　　C Absolutely

　　D Basically

　　6 Many fine cooks insist on ingredients of the highest quality.

　　A demand

　　B rely on

　　C prepare for

　　D create

　　7 While attempting to find a new route to India， Columbus discovered America by accident.

　　A sailing

　　B failing

　　C trying

　　D hoping

　　8 We want to know his family background.

　　A relationships

　　B members

　　C troubles

　　D income