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共71道小题，约4810字。

　　河北定州中学2016-2017学年第一学期高四英语周练试题（五）
　　一、单项选择题
　　1．---Tell us, Mark, what is the cause of the American Civil War?
　　---Well, is it _______the black slaves wanted freedom?
　　A． how                   B． why
　　C． because             D． when
　　2．--- I can’t carry the luggage．It’s so heavy.
　　--- Why not have someone strong enough_______ you a hand then?
　　A． give                 B． to give
　　C． giving             D． to have given
　　3．Although she brushed the old pot_______, she could not make it completely clean, which made her very upset.
　　A． roughly               B． thoroughly
　　C． instantly             D． occasionally
　　4．Mr．Smith is always on time for everything．How ____ it be that he was late for the important meeting?
　　A． should             B． can             C． may             D． must
　　5．---Your grandfather still seems very energetic, although he is already in his seventies now.
　　---Yes, he _______in the army for three years when he was young.
　　A． would serve             B． served
　　C． had served               D． has served
　　6．Many plants could move northward and toward the Pacific coast _______rising temperatures and changes in rainfall.
　　A． for fear of                 B． in defense of
　　C． by means of              D． in reaction to
　　7．Once a schedule is made, by strictly _______ it, you can avoid putting off till tomorrow what should be done.
　　A． arranging             B． measuring
　　C． observing             D． presenting
　　8．---Mr．Blacst can’t get my car started．I think there’s something wrong with the engine.
　　---Oh, let me see．Ah, that is not _______ it is．Actually, your car has used up all the petrol.
　　A． where             B． when             C． what             D． how
　　9．I was once ashamed to admit my weakness, but now I have no such feeling and I _____myself much discomfort.
　　A． bring             B． save
　　C． offer             D． promise
　　10．At the graduation ceremony, the headmaster required the graduates to raise their competitive _______ in modern society.
　　A． spirit                    B． intention
　　C． ambition             D． awareness
　　11．The living standard of the people in China, _______ is shown in the report, has improved over the past decades.