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①爸爸表面很____，不苟言笑，可内心很疼爱我。

②对那些作恶多端、怙恶不悛的惯犯要____惩处。

③同学们都能____要求自己，努力养成良好的道德品质。

某班同学在做测定白磷燃烧前后质量变化情况实验，实验装置如图．

（1）他们是用热玻璃管引燃的方法点燃白磷的，你还能想出其他的办法点燃白磷吗？请写出一种 ____．

（2）实验过程中我们可以看到瓶内的什么现象？ ____．

（3）在实验过程中有三位同学的气球出现了不同的情况：

甲同学在实验过程中发现气球开始变大，然后慢慢瘪下去；

乙同学的气球被气浪冲出，他捡起气球后扎好继续做实验；

丙同学的气球却始终没有发生变化．

由此你认为谁的实验会成功？ ____同学．

（4）若三位同学都把称量后的锥形瓶倒立在水中，则它们的锥形瓶中都有水进入吗？ ____的有；而且 ____的锥形瓶内水位最高．

    Everybody, welcome to ____(we) company. I am Luisa, Director of the department. Let me say something to you all. The starting of work can be exciting on the hand, and can also be ____(worry) on the other. No matter what your future job is, you will have to work with others. Leaning to get on well with others must come first,____ (include) all staff in the company and our ____ (custom).

    And secondly, right after my introduction, spend some time reading the introduction of our company and get to know the people in your office and find out ____ the company is like. This afternoon you can walk around our workshops and know ____ (much) about the products. No one is allowed ____ (leave) the company before 5:30 pm. By the way, lunchtime ____ (come) at 11:50 and it's free ____ charge.

    Remember: Learning is so important ____ it can change your future life.

This is what I'd like to say to you at the moment. If you still have any question, please come to my office. Thank you.