I like to play a balloon, mom also gives bought a lot of. The balloon is very amused, but blow a balloon to let me,some are anxious, blow very laborious. Then I think, why to use holiday to move think, oneself make a pump, where is the gizmo that make a point?
我喜欢玩气球，妈妈也给买了许多。气球很好玩，可是吹气球让我有些发愁，吹起来很费劲。于是我想，何不利用假期动动脑筋，自己制作一个打气筒，搞点小发明呢？
Above all what I think of is straw, plunge into the cap of a carefe an alveolus, insert straw alveolus, give a bit. Next balloon mouth covers my general to go up in straw, squeeze bottle forcibly, balloon beat rose, but bottle has some of shrivelled however, again crowded, the air in bottle is inadequate, balloon also a shrivelled go down. I am a little crestfallen, think back out. Aside the look that grandfather sees I am depressed, pat the shoulder that pats me to encourage me to say “ is fastened anxious, grandfather accompanies you to think method is improved again together, you this originality is very pretty good. ” saw an alveolus is plunged into on grandfather preexistence bottle only, be in quadrilateral in cap again then hit 4 alveolus respectively, pull out straw at the same time, stem this aperture, reoccupy balloon skin imposes cap on one. I look at grandfather questioningly, at this moment, grandfather covers the balloon go up in cap, I come to signal encourage. I am taking the lead of grandfather, the alveolus on body is pinned with the finger when pressing, when squeezing, loosen. Differ meeting, the balloon was roused slowly. I am very curious, why such OK? Grandfather is laughing to say: “ this has scientific reason, after bottle of makings of crowded compression moulding, the atmospheric pressure inside bottle increases, squeeze balloon film, air enters a balloon, power of internal pressure of the balloon after loosening is a few greater, air presses balloon film on cap closely, the gas that is made into the balloon won't come out again, so many second, air current is pressed into the balloon ceaselessly, the balloon is bigger and bigger. I listened to ” , have only vague idea the place nods.
首先我想到的是吸管，将一个饮料瓶的瓶盖扎一个小孔，把吸管插入小孔，出一点头。然后我将气球口套在吸管上，用力挤瓶子，气球鼓起来了，但瓶子却有些瘪了，再挤，瓶里空气不足，气球也一起瘪了下去。我有些气馁，想打退堂鼓。一旁的外公看到我沮丧的样子，拍拍我的肩膀鼓励我说“别着急，外公陪你一起再想想办法改进一下，你这个创意很不错。”只见外公先在瓶子上扎了一个小孔，接着又在瓶盖四角处分别打了四个小孔，同时把吸管拔出，堵住这个孔，再用气球皮将瓶盖加上一层。我疑惑地看着外公，这时，外公将气球套在瓶盖上，示意我来打气。我照着外公的指挥，按的时候用指头压住瓶身上的小孔，挤的时候松开。不一会，气球慢慢鼓了起来。我很好奇，为什么这样就可以了呢？外公笑着说：“这是有科学道理的，当挤压塑料瓶后，瓶内气压增大，挤开气球膜，空气进入气球，松开后气球内压力更大一些，空气把气球膜紧紧压在瓶盖上，打进气球里的气体就不会再出来，如此多次，气流不断压进气球，气球就越来越大。”我听了，似懂非懂地点点头。
Be, the sparklet of a lot of creation always can appear in the life, this is about we are great learn scientific knowledge, undertake a few interesting gizmo more.
是呀，生活中总会出现许多创造的小火花，这就要我们多多学习科学知识，多进行一些有趣的小发明。(文/谢一萌)