4.（2008·全国Ⅱ）The house still needed a lot of work,but ________ the kitchen was finished.
A.instead
B.altogether
C.at once
D.at least
【解析】本题考查副词和介词短语作状语的区别。句意为：这幢房子仍需大量的工作，但至少厨房已经完成了。at least至少，符合句意。instead代替；顶替；反而；altogether总共；at once立刻，马上；均不符合句意。
【答案】D
模拟质检
1.My morning ________ includes jogging in the park and reading newspapers over breakfast.
A.drill
B.action
C.regulation
D.routine
【解析】考查词义辨析。routine意为“惯例，常规”。句意为：我早上的日常惯例是在公园跑步，然后是在早饭期间读报。A项drill“训练，程序”；B项action“行为，行动”；C项regulation“规则，条例”。
【答案】D
2.It’s reported that a naturalist has just discovered a new ________ of orchid in the forest.
A.collection
B.diversity
C.variety
D.section