题目

At no time does the salesgirl get up late in the morning, for she is always too busy _____ a good rest. A. to take        B. taking        C. took       D. taken 答案：A考查too...to...结构。注意：at no time（在什何时候都不）放在句首时,句子要用倒装 语序。（2013?六合区二模）太阳能是一种清洁能源．某太阳能热水器每天能使500kg的水温度升高30℃，则这些水吸收的热量为6.3×1076.3×107J，这是通过热传递热传递改变水的内能．[水的比热容为4.2×103J/（kg?℃）]．