儿子自从看了那个小鸡破壳的视频后，就从冰箱取出几枚鸡蛋，放在地上，然后蹲在上面，以为能孵出小鸡，无奈对于这样的小孩，寥寥几句解释这样子是孵不出小鸡是没什么作用的，所以一直就想着什么时候来说说这一段。 正巧前段时间一位网友在坛里发了这样的一本书where_do_chicks_come_from，稍稍看了一眼，正巧有我想要的内容，这本书的链接是 【全网首发】let's read and find out science S1 where do chicks come from http://www.ebama.net/forum.php?mod=viewthread&tid=53314&fromuid=389
let's read and find out science这个系列的价格有点小贵的，还有这个网友如果看到这个帖子应该要给我回扣，这算不算是广告宣传了呢？{:soso_e113:}
闲话少说，言归正传。
Not all the eggs can be hatched(不是所有的鸡蛋都能孵化)
rooster,the father chicken, mates with the hen. His sperm joins the growing egg. This is called fertilization.(公鸡和母鸡交配，精子进入了这枚成长中的鸡蛋，这个过程叫受精)对于小孩子，可能也不懂，这一句可以忽略不计。
The hen lays the egg. Over the next few days,she lays several more eggs.The hen sits on top of the eggs to keep them warm. As soon as the eggs are warm，the chicks start growing. （鸡生蛋，在以后的几天，它又生了几枚蛋，母鸡就孵在蛋上给这些蛋保暖，一旦鸡蛋开始暖了，小鸡们开始在蛋里成长了）
day 3: The chick looks like the letterC with a dark spot in the middle. This spot is its heart(3天后，小鸡就像字母C一样，中间还有个发暗的斑点，那个斑点就是心脏)
day 5:The chick's head is now half as big as its body,and its eyes are very large,Its tail has begun to grow. Wings and legs are forming.(这时小鸡的头有它身体一半大，眼睛也非常大，尾巴已经开始生长，翅膀和腿也开始成形了)
day 7：The chick is only one inch long about as long as your big toe. Even so, it is already starting to look like a chicken. The chick's eyes, stomach, brain, and toes have started to grow. A beak has started to grow too, but it is very soft. The chick's wings are folded across its chest.（小鸡大约1英寸上，大约就像你的大拇指的长度，经管如此，它已经看上去像只鸡了，鸡的眼睛，胃部，大脑还有爪子都已经开始生长，连喙也开始长了，只是还很柔软，它的翅膀折叠交错在胸部）
day 10;The chick lies on its back inside the egg. lts wings,legs, and beak are fully grown.(小鸡躺在鸡蛋里，它的翅膀，腿和喙已经完全长出来了)
day 11：The chick can open and close its beak now。Tiny bumps appear all over the chick's skin.,ln a few days feathers will grow from these bumps.(小鸡的喙已经可以开开闭闭了，皮肤上也开始出现了小突起，可能就是传说中的鸡皮疙瘩吧，几天后，羽毛会从这些小突起里长出来)
day 14：The chick is tightly curled inside the egg （小鸡紧紧蜷缩在鸡蛋里面）
day 18：The chick has grown so big that it touches the inside of the shell on every side.Soft feathers called down cover its head and body（小鸡长得够大已经能够触碰到蛋壳里的每个角落，头上和身体上长满了软软的叫做绒毛的软软羽毛）
day 20：The chick practices breathing. ln one day it will hatch，（小鸡开始练习呼吸，还有一天就要破壳了）
day 21:the chick pecks a tiny hole,After making the hole, the chick sleeps for a few hours.When the chick wakes up, it pecks for hours. lt pecks a circle around the inside of the.shell.Next, it pushes hard against one side of the shell with its feet. Then it pushes hard against the other side with its neck and shoulders.Crack! The chick has hatched!(小鸡在壳上啄了一个小洞，之后会睡上几个小时，醒来后，它会花上个把小时的时间在壳里啄上一圈，然后它用脚使劲推开一边的壳，接着用颈肩部推开另一半的壳，卡擦，小鸡破壳啦！) （以上内容是根据书上选取部分来讲解视频）
