This morning, I am in sleep, transmit hurried “ suddenly to bite sound of phone of bell bell ” , I am forced to call mom to receive listen.
今天早上，我正在睡梦中，突然传来几声急促的“叮铃铃”电话声，我只好喊妈妈来接听。
I what be made a noise to wake by the phone, was forced to wake. Suddenly, an orderly word emerges before in me: When why calling, although be apart a thousand li, can you hear the voice of the other side clearly?
被电话吵醒的我，只好醒了。忽然，一排整齐的字浮现在我的眼前：为什么打电话时，尽管相隔千里，都可以清楚地听到对方的声音？
After eating breakfast, I asked about this question to mom. Mom told the truth of this problem to me, I listened a long time to also was not understood. Mom says: “ is good, we will do a little test. You go looking for two to be pulled easily coal tub mixes long term. I listen to ” should do little test, came at a draught spirit, find out two to be pulled easily coal tub and long term gave mom.
吃过早餐后，我向妈妈问起了这个问题。妈妈给我讲了这个问题的道理，我听了半天也没听懂。妈妈说：“好吧，我们来做个小实验。你去找两个易拉罐和一根长线。”我一听要做小实验，便一下子来了精神，找出两个易拉罐和长线交给了妈妈。
Mom looks for a hammer and a Tie Ding to let me be done according to her word from spare parts box. I first a cautiously cap take out that pulls coal tub easily, be in with hammer and Tie Ding the bottom authentic that pulls coal tub easily two alveolus. Wear long term two end into two easy compositions respectively next / the bottom alveolus that pulls coal tub, will long term finally two end hit a brief summary each, those who make is firm. Look at the “ phone ” that has done, ground of my too impatient to wait is taken use, let mom pull coal tub collect easily to listen to me into ear word of say a few words, but, mom always says not to listen, I take “ phone ” crestfallenly to look again and again a few times, retried a few times, but, right! Mom sees the look of my have no alternative, say to me: “ you stretch tight cord to retry continuously. I tried ” again, as expected, succeeded eventually.
妈妈从零件盒里找来一把锤子和一枚铁钉让我照着她的话去做。我先小心翼翼地把易拉罐的盖子去掉，用锤子和铁钉在易拉罐的底部凿两个小孔。然后把长线的两端分别穿进两个易作文/拉罐的底部的小孔，最后将长线的两端各打一个小结，使之牢固。看着做好的“电话”，我迫不及待地拿起来使用，让妈妈把易拉罐凑进耳朵听我说几句话，可是，妈妈总是说听不到，我垂头丧气地拿起“电话”翻来覆去地看几遍，再试了几次，可是，没错呀！妈妈见我无可奈何的样子，对我说：“你将绳子绷直再试一下。”我又试了一遍，果然，终于成功了。
Pass this little test, my suddenly be enlightened, original, talk to mike, make the metallic diaphragm of mike bottom oscillatory along with sound, contain magnetic reed vibration, in electromagnetism coil, generation is faradic, voltaic classics lead is passed to one party getting a word, make the diaphragm on receiver produces corresponding vibration, one's voice in speech reductive.
通过这个小实验，我恍然大悟，原来，对着话筒说话，使话筒底部的金属膜片随声音而振动，并带有磁性簧片振动，在电磁线圈，产生感应电流，电流经导线传至受话一方，使受话器上的膜片产生相应的振动，将话音还原。
This is interesting scientific little test really, let me benefit a lot, be to carry out a genuine knowledge really!
这真是一次有趣的科学小实验，让我受益匪浅，真是实践出真知呀！