在横线上简要说明下列操作可能造成的后果。（1）向燃着的酒精_爱下问搜题

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问题填空题

在横线上简要说明下列操作可能造成的后果。

（1）向燃着的酒精灯里添加酒精：。

（2）加热液体时，试管口朝着有人的方向：。

（3）加热后的蒸发皿直接放在实验台上：。

答案

（1）引起火灾（2）液体沸腾后喷出伤人（3）烫坏实验台

（1）酒精是易燃物质，具有挥发性，向燃着的酒精灯内添加酒精，易引起火灾。

（2）加热液体时，试管口朝着有人的方向，容易产生液体沸腾后喷出烫伤人。

（3）加热后的蒸发皿直接放在实验台上，由于温度还很高，故有可能会烫坏实验台。

完形填空

Night after night, my mother came to my bed, even long after my childhood years.She would ____ down and push my long hair out of the way, and then kiss my forehead.
I don't remember when it first started ___ me — her hands pushing my hair that way, for they felt workworn and rough ____ my young skin.Finally，one night, I shouted out at her, “Don't do that any more—your hands are too rough！” she made no ____ and left quietly.But never again did my mother do it with that familiar expression of her ____.
With the passing years, my ____returned to that night time after time.By then I ____ my mother's hands and her goodnight kiss.Sometimes the incident seemed very ____， sometimes far away, but always it was ____ in the back of my mind.
The years have passed, and I'm not a little girl any more.Mom is in her seventies, and those hands I once ___ to be so rough are still doing things for me and my family.
Now, Mom no longer has Dad and lives ____.One night on Thanksgiving Eve, I found myself ___to her house to spend the night with her.As I slept in the bedroom of my youth, a familiar hand hesitantly ran across my face to ___the hair from my forehead.Then a ____， ever so gently , touched my forehead.I burst into tears.
In my memory, thousands of times, I ____ the night my young voice complained.Catching Mom's hand in hand, I told her how ____I was for that night.I thought she'd remember ____ I did.But Mom didn't know what I was talking about.She had already forgotten and ____ long ago.
That night, I fell asleep with a new ____for my gentle mother and her caring hands.And the guilt that I had carried around for so long was ____ to be found.

B．astonishing

D．disappointing

A．disappeared

A．imagination

B．inspiration

D．appreciation

单项选择题

日本雇佣保险制的基本结构分为( )

A．预防措施和巩固措施
B．失业保险措施和善后措施
C．失业保险措施和预防措施
D．善后措施和预防措施