为了测量某小球的直径，技术人员将小球放到透明烧杯上，如图是过球心O作为截面图，已知烧杯的高度是13cm，测得l=8cm，h=11cm，则小球的直径为____ cm．

图片排序。（每空1分，共5分）

A.    B.    C.    D.    E.

____  ____  ____  ____  ____  

____－9=4

词语解释：

①俯瞰

②倏然

    The importance of punctuality (守时) in our daily lives____(be) obvious. It affects both the individual (个 人) and the workplace.

    On ____ whole, the workplace operates more smoothly when employees are punctual. For example, when everyone is on time for a meeting, the meeting will start smoothly as it____ (schedule). Punctuality may help you achieve advancement. Research shows that managers are less____ (like) to promote late employees.

    Lack of punctuality affects the people in the workplace. It may lead to anger, as colleagues who are on time compare____ (they) with late-comers. Being late throws you out of the group, as you may miss important____(inform). This causes a harmful division among employees. Leaders affect the entire workplace. When leaders are late, it sends an irresponsible message to employees____ may decrease their work enthusiasm. Lateness leads to stress, and stress brings____ poor workplace performance. Being consistently late may cause you ____(start) believing your lateness is acceptable. When this happens, you begin to blame outside circumstances and lose focus on potential solutions. To make matters____ (bad), constant lateness can eventually make you lose your job.