下面是gre填空机经1200题的节选内容：
1、Artificial light _______ the respiratory activity of some microorganisms in the winter but not in the summer, in part because in the summer their respiration is already at its peak and thus cannot be _______.
A, stimulates.. lessened
B, inhibits.. quickened
C, reflects.. expanded
D, elevates.. measured
E, enhances.. increased
respiratory: a.呼吸的，呼吸器管的，呼吸作用的
microorganism: n.微生物
inhibit: v.1.抑制，约束 2.[化][医]抑制
elevate: v.1.举起，提高，使上升 2.提升…的职位，提高(嗓门，信心等)，改善3.使情绪高昂
人造光能增强某些微生物体在夏季的呼吸活动，但在夏季却不能，部分原因是因为它们的呼吸在夏季早已处于高峰状态，故而已到了无以复加的地步。
2、Doreen justifiably felt she deserved recognition for the fact that the research institute had been _____a position of preeminence, since it was she who had ______ the t
ransformation.
A, reduced to.. controlled
B, raised to.. observed
C, mired in.. imagined
D, maintained in.. created
E, returned to.. directed
justifiably: adv.无可非议地，可辩护地，情有可原地
preeminence: n.卓越，杰出
mire: v.使陷入泥潭，使陷困境
戴莲理直气壮地觉得她理应得到人们的褒奖，因为研究院再度回到了昔日的卓越地位，而正是她一手导演了这一变迁。
3、The prospects of discovering new aspects of the life of a painter as thoroughly studied as Vermeer are not, on the surface_______.
A, unpromising
B, daunting
C, encouraging
D, superficial
E, challenging
prospect: n.1.预期，展望，指望 2.景象，视野 3.机会，前景，前程，前途
vermeer: n.弗美尔(荷兰风俗画家，亦作肖像及风景画，以善用色彩表现空间感及光的效果著称，作品有《挤奶女工》，《情书》等)
unpromising: a.无指望的，没有前途的，不太有成功希望的
daunting: a.令人胆怯气馁的，威吓的
superficial: a.1.面(积)的 2.表面的，外部的 3.草率的，粗略的4.肤浅的，浅薄的
象弗美尔这样一位其生平被研究得如此这巨细无遗、透彻详尽的画家，要挖掘其生平中的新内容，乍看上去，前景并不让人感到欣慰鼓舞。