5. 这个英语文章的总结要怎么写 250左右 A recent study shows that dirt may be good for brain and make children smarter because it is a
natural anti-anxiety drug without side-effects. Dr. Dorothy Matthews, an associate professor of biology at The Sage Colleges in Troy, N.Y.,conducted the experiment. She and her colleagues tested how long the mice took to navigate a maze. The result is that the bacteria-exposed mice ran twice as fast as the controls. Their explanation is like this: Serotonin plays a big role in modulating mood, decreasing anxiety. If one is nervous or frightened, he can't think straight. So serotonin is of significance for learning. In the experiment, the bacteria-exposed mice showed fewer anxiety behaviors than the non-exposed ones. In another experiment, the researchers removed the bacteria from the food provided for the exposed mice and found that those exposed mice were still faster than the controls. Therefore, they came to a conclusion thatthe effect is temporary.（字数：155，实际已经说清楚了 。）
6. 用英语写篇短文250单词左右就好 Being ignorant is not so much a shame, as being unwilling to learn
We are now living in a world with a lot of knowledge for us to learn.We must work very hard to catch up with world's step.If someday, we stop working.Then something bad will happen to us.We may lack some new knowledge.We can not understand some popular things.Oh,what a pity.It seems that we are out of the world.
Well,don't worry.Always remember we have the ability to learn some new things.We can know more about the new points.We can even creat something if we want to.The motivation is that we are eager to study to know more about the world.And if we stick to it,we may finally succeed.
So,what is really important is to keep a good habit of study.
A good habit of study is not easy for us to have.Sometimes when we feel boring,we just get rid of it.Then again we fall behind the popular world.And this unwilling result results from our being unwilling to learn.So again,the importance of being unwilling to learn is pointed out.
Then how to solve the problem?How to make ourselves love to study?How can we have a great mind to do something great?We may have asked these questions for many times.But no ideas come to our minds.
Actually,the answer is very simple.I think whether we can overcome the troubles depends on our motivation to study.
So just try to have some interest in study.Then we will have no problems.Because we will not be unwilling to study.
Have we made our decisions to study hard?If we have,then,do it.
7. 250字的英语短文 I what busied one day, the body that dragging exhaustion sits silently on the balcony to syare blankly, come stealthily towards evening, late wind slowly had blown, left the cool trace of filar silk. But the balcony that also cannot bake sun broil hair is very hotly is wrapped cool. Dark, bird is less and less also, the damage that a string of bird left in the sky cries. The sun that worked one day also took off coverall, it is no longer in that way dazzling. The tender broadness that the sun that changes new clothes also changes is elegant, lovely. Tell the truth the sun can be met really choose color. The clothes that you see her wear is much more beautiful, red is blaze that one the most beautiful one color in the layer. Withered and yellow is squashy orange just was picked on the tree that orange is yellow. Foil in so beautiful color the cheek that issued arch to give a piece of peaceful. She seems to be being monitored by others same, stealthily move is moving pace, appear that kind is lightsome. Knowing at this moment is who is make a practical joke, in her that is high and scatter on luxuriant clothes went up prepared Chinese ink makes her dress becomes bit more full of stains or spots, ased if to throw one Jiao in wallow. Right now she is like a girl bashful and same, blush so that resemble squashy persimmon. Perhaps she feels embarrassed to used white gauze cloak to live then half face. Passed for ages, perhaps be she feels to be done so also of no help cowardly cowardly ground comes out to appear that kind is bashful. Then she thinks 36 plan -- go for the best thing to do, be smooth! Apparent its speed appears than a moment ago much faster, she is floating die of small blush Pang is in then later hilltop. The sky appears deserted. Again scan widely hopes horizon appeared again her form, hey! How be like two different people with foregoing the setting sun, move close to again look, it is the moon that Yin Guangshan shows so. Dark, appear soundless in that way all around. 翻译： 忙碌了一天的我，拖着疲劳的身体静静的坐在阳台上发呆，傍晚悄悄来临，晚风缓缓的吹过，留下了丝丝的凉意.但也不能将太阳炙烤得发烫的阳台裹凉.天黑了，鸟儿也愈来愈少，天空中留下了一串鸟的残鸣 。