中午,我回家时,却看见牵牛花的花冠卷起来了,我很纳闷。
为什么早上那么鲜艳的牵牛花一到中午就焉了呢?
带着这个疑问,我去翻书,终于找到了答案。
原来,牵牛花的花冠大而薄,水分蒸发很快。清晨空气比较湿润,气温不高,阳光的照射又比较柔和,牵牛花体内的水分充足,这样的外界环境对它最为适宜。这时,牵牛花花瓣的内侧细胞生长得快,于是花瓣向外弯曲,这样,鲜艳的牵牛花就开了。
中午,随着温度的升高,阳光照射,空气变得干燥,花冠里的水分被蒸发,根部又来不及吸收足够的水分来供给花冠,花冠便卷了起来。
牵牛花开花需要阳光,但也害怕过强的阳光,而清晨的条件正好适合它的要求,所以它的开花时间是在早上。
弄清楚了这个问题,我的心情特别舒畅。
普普通通的牵牛花也有如此大的学问,大自然真是神奇啊!
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?
The end of the summer,should have a good rest! But my mother is very busy。 As the daughter of course I want to help my mother to do some。 Early in the morning I got up, washed the dishes, sweep the floor, cooking and so on, at noon, I tired, lying on the bed, fan fan, more comfortable。 终于放暑假了,应该好好歇歇了!可是妈妈很忙。作为女儿的我当然要帮妈妈分担些了。一大清早的我就起来了,帮妈妈洗碗,扫地,做饭等等,到了中午,我快累死了,往床上一躺,扇扇电风扇,舒服多了。
They are afraid we will have accidents as the river has no safty measures.
So, of course, we should go to the river for swimming. It may takes our life for no reason.
It is very cruel. Sometimes we can hear the news that someone die because of swimming in the river.
If we want to swim, we can go to the swimming pool with adults. This is safe. And we can also ask a teacher to teach us. Just remember, do not go to the river to swim secretly. We should take responsibility for ourselves.
大人们总是警告我们不要要江河水库游泳。他们担心我们会发生意外,因为江河水库没有相关的'安全措施。所以,我们当然不能去江河水库游泳了。这很有可能会突然就夺走我们的生命,是很残酷的。有时候我们也会听到一些新闻说有人因去江河水库游泳而丧命。如果我们想要游泳,我们可以在大人的陪同下去游泳池游泳。这样是安全的,我们也可以请教练教我们。一定要谨记,不要私自到江河水库游泳。我们要对自己负责任。
It was sunny and very hot today。I got up early and helped my parents cook breakfast。 Then I washed the dishes and cleaned the room。 After a short rest I did my homework in the morning。 In the afternoon I went swimming in the nearest swimming pool with my friends。 It was really cool to swim in such a hot day。 I surfed the internet and read a storybook in the evening。 I really had a busy and interesting day。 今天天气晴朗比较热。 我起得很早,帮父母做早饭。然后我洗碗打扫屋子。休息一会后我上午做作业。 下午我和朋友去我家最近的.游泳池游泳。 在如此炎热的夏天游泳的确很棒。 晚上我上网、看故事书。我今天很忙过得很有趣。
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