题干

在研究牛顿第一运动定律的实验中,如图所示,用同一小车从同一斜面上滑下,接着在材料不同的水平面上继续运动,分别停在图中所示位置

①让小车从同一斜面上的____(填“相同高度”或“不同高度”)滑下,是为了控制小车到达水平面时的____相同.

②由实验得出结论:水平面越光滑,阻力越____,速度减小得越____,滑行距离越____

③由此可推理:若水平面绝对光滑,阻力为零,小车将会做____运动.

④牛顿在伽利略的实验基础和笛卡尔的推论下,得出了牛顿第一定律.但该定律不能在地球上用实验验证,原因是:____

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相同高度,初速度,小,慢,远,匀速直线,物体在地球上始终会受力

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    We can have conflicts with our important persons like friends, relatives, workmates, etc. But the conflict doesn't necessarily mean that the relationship will be destroyed. In fact, sometimes conflict helps people to let out their silent feelings, allowing them to free their suppressed emotions. However, when in a conflict, we usually get angry and say or do things which aren't linked to the problem at hand. Therefore, it is important that we should try to avoid conflicts through effective communication.

    In a heated argument, we usually say things that aren't related to the real problem, and even use rude words to make sure we gain an advantage over the other persons. Then the whole situation goes badly. So we should not separate(隔离) the root cause of the problem and build our discussion around it. This ensures that there are no rude remarks and the situation moves in a positive direction.

    It's easy for us to think we're right and if something isn't working out, it surely must be someone else's fault. However, if you aim to solve a conflict, first of all, you should show some respect and allow the other persons to express themselves. Using remarks like, "I understand your concern on this "or "I know you're right at your end", would make the other persons feel more appreciated.

    Sometimes some people get too excited and may behave in the wrong way or say something others may not appreciate. This can cause a worse situation. Actually, they should control their emotions and keep calm. This has to be learned through self-control and observing behavior of other people.

    The tips mentioned above are useful for most situations. However, we don't rule out the possibility that there are some people who always want to create some sort of trouble for others. You can tell them from others, and putting in an effort to resolve a conflict with them may just not be a wise idea. The best way to deal with these people is to forget them. A famous saying can help you and that is: "You should never fight with a pig; you both get dirty and only the pig likes it."

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