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）