nowadays, we can see some boys and girls who live in a small world of their own. they bury themselves among books and are proud of themselves. they think that it will make them lose their face if they do housework for they often think themselves very noble.
these young people are wrong. in my opinion every student should have a knowledge of housework. after all, they will have a family of their own, and they should do their part in keeping a good home. boys should also learn to do housework, for what will they do if they remain single? though not all boys remain single,yet they will be very helpful in the family if they know some housework. anyhow they will not lose anything, but, on the contrary, they will gain something useful.
for what i said above, we can find some eamples of our fellow-students studying abroad. all young men do housework as girls do. someone would argue that we can employ servants. this is true.however, what shall we do if the servant leaves us and all things are left to ourselves? we just cannot leave our clothes as they are and let worms and ants eat them up. and what can we do it we go and study in a foreign country where servants are out our means to employ? we must work for ourselves. why not start to learn to do housework now or else it will be too late? everyone should learn to do housework. what do you think about my idea, boys and girls?
可做好方便面后尝了一下,明显比我在家里做的好吃。这是为什呢?
回到家后,我百思不得其解:为什么同一个人做出的方便面味道会不一样呢?我想原材料应该没问题,都是康师傅老坛酸菜牛肉面(这酸爽,简直不敢相信!),那么问题到底出在哪里呢?经过很长时间的思索,我觉得应该是做饭的锅不同。我家一般都用铝锅,而我哥家一般都用铁锅。也就是说味道不同,是因为两锅中有不同的元素掺入其中。
那么到底是什么呢?
我找出一只铁锅,和我家那只铝锅放在一起,里面倒入相同质量的水,然后加热至沸腾。等这些水冷却下来,我把它们分别倒入两个相同的、干净的烧杯中。(用铁锅煮出来的以下简称Fe水,铝锅的简称Al水)
现在,我把两个烧杯放在铁架台上,用酒精灯给两个烧杯加热,将水蒸发出去。这时候,Fe水底部留下了一些偏黑的银色颗粒,而Al水却没有任何杂物。证明了味道不同,就是因为这些偏黑的银色颗粒引起的'。那么这些颗粒到底是什么呢?
既然是铁锅中有,而铝锅没有的,那我首先会想到是铁。于是乎,我将这些颗粒装入一个透明的袋子中,用吸铁石靠近,发现这些颗粒被吸铁石吸引,那么也就证明了这些物质是铁。也就是说铁锅和铝锅炒出来的菜味道不一样就是因为这些铁颗粒改变了味道。
所以呢,用铁锅炒菜能补充铁元素。高温下,铁锅中的少量铁元素会渗入到食物中,因此在客观上起到了补铁的作用。如果长时间不使用铁锅,那么可能会得缺铁性贫血。
One day, Paula and Richard decided to make a kite.
First they went out and found two straight sticks of the same length. They brought them back home and tied them with a piece of string into the shape of a cross. Then they took some string and used it to tie the four ends of the sticks together. Then, they spread some brightly coloured paper over the frame and glued it around the string.They stuck a tail made of paper to one of the corners, and tied a long string to the centre of the kite.
On the next windy day, they took the kite to a hill near their house and flew it.
一天,保罗和理查德决定做一个风筝。
首先,他们出门找了两根一样长的直木棍。他们把木棍带回家,用一根绳子把它们绑成十字形。然后他们又拿了些绳子,把木棍的四个顶端连在一起。然后,他们把一些颜色鲜艳的纸涂上胶水,粘在风筝的框架上。他们将纸做的尾巴粘在一角,在风筝中间系上一根长绳。
在接下来的一个有风的日子里,他们就在家附近的小山上放风筝了。
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