1.The sick person has taken a ____ for thebetter.
A) coverB) recover C) changeD) turn
2.Unfortunately he couldn't ____ for the loss.
A) explainB) call C) accountD) take
3.Most science-fiction writers seek to persuadereaders that the world they have created is ____ andis derived from scientific principles.
A) possibleB) impossible C) certainlyD) unlikely
4.A guided missile consists basically of a warhead attached to a tube like body. A rocket ora jet engine may ____ the missile.
A) powerB) pull C) compelD) expel
5.In judging his behavior, I hope that he committee will ____ his stage performance intoaccount.
A) putB) let C) takeD) make
6. Heavy fog made the morning light ____.
A) brightB) distortedC) dimD) filthy
7.The travel industry plays a major role in the ____ of business, recreation, and family life.
A) sphereB) scalesC) surplusD) surveys
8.He was dismissed for failing to ____ with the school regulations.
A) accommodateB) comply C) competeD) apply
9.Some science students reach a high ____of English competence in communication.
A) levelB) planeC) surfaceD) live
10.Everyone should be ____ innocent until it is proved that he is guilty.
A) presumedB) assumedC) resumedD) consumed
答案与解析：
1.D。
take a turn for the better病情有所好转。
2.C。
account for，固定搭配，意为"解释"。
3.A。
根据句义，此处需填入的词应具有肯定意义，因而possible为恰当选项;certainly为副词，不适用。
4.A。
power提供动力;pull拉;compel强迫;expel驱逐。
5.C。
6.C。
dim不明亮，朦胧的;distorted扭曲的;filthy不洁的、污秽的。
7.A。
sphere范围、领域;scale规模;surplus多余的;survey调查。
8.B。
comply with为固定搭配，意为"遵守"，符合题意。
9.A。
level水平;plane平面;surface表面;line线。
10.B。
assume sb. to be"认为……是……"，符合题意。
（实习编辑：王晓晓）
From:https://www.zgghmh.com/CET-4/20002726.asp