我喜欢秋天的英语作文怎么写经典20篇

风像一只神奇的画笔，一夜功夫，就把碧波荡漾的林带染成金灿灿的了。

登上山头，向下眺望，眼前是一片金色，若是仔细观察，便看到金黄中夹带着一片片红、一片片绿的。红的得像玛瑙，绿得像翡翠。还有山下那水平如镜的池塘，倒映着眼前的美景，格外的好看。

庄稼地里，金黄的玉米像金棒槌一样齐刷刷一片连着一片，高粱那红色的穗子，像害羞小姑娘一样，红着脸低下了羞涩的头，在微风中摇曳，大豆摇摇摆摆，在风中沙沙作响，田野里像演奏着一首大自然的合唱曲。

果园里，鲜红的柿子像一个个小灯笼，高高的挂在枝头，树枝看起来快要被折断的样子，还有那一串串紫色的葡萄，挂着晶莹的露珠，像水晶一样在阳光的照耀下闪出五彩斑斓的光。我被这金色的秋天感染了，陶醉了。

啊!我爱这丰收的、金黄色的秋天。

英语写作只要掌握了一定的句型与词量，要写出好作文并不难，下面是语文迷为大家整理的八类写作句型，供大家参考。

一.开头句型

1.As far as ...is/am/are concerned 就……而言

例如：就我而言 As far as I am concerned

2.It can be said with certainty that... 可以肯定地说......

3.As the proverb says，... 正如谚语所说的，......

4.It has to be noticed that... 必须注意到......

5.Its generally recognized that... 普遍认为......

6.Its likely that ... 这可能是因为......

7.Its hardly that... 这是很难的......

8.Theres no denying the fact that... 毫无疑问，无可否认......

9.Nothing is more important than the fact that... 没有什么比......更重要。

10.whats far more important is that... 更重要的是…...

二.衔接句型

1.A case in point is ... 一个典型的例子是......

2.But the problem is not so simple. Therefore，... 然而问题并非如此简单，所以……

3.But its a pity that... 但遗憾的是…...

4.In spite of the fact that... 尽管......

5.Further, we hold the opinion that... 此外，我们坚持认为，......

6..However , the difficulty lies in... 然而，困难在于…...

7.Similarly, we should pay attention to... 同样，我们要注意......

8.As it has been mentioned above... 正如上面所提到的…

9.In this respect,... 从这个角度上,......

10.However, 然而, ...…

三.结尾句型

1.I will conclude by saying... 最后我要说…...

2.Therefore, we have the reason to believe that... 因此，我们有理由相信…...

3.All things considered= In a word=In conclusion 总而言之

4.It may be safely said that... 它可以有把握地说......

5.Therefore, in my opinion,... 因此，在我看来，......

6.From what has been discussed above, we may safely draw the conclusion that...通过以上讨论，我们可以得出结论...…

7.The data/statistics/figures lead us to the conclusion that… 通过数据我们得到的结论是，....

8.It can be concluded from the discussion that... 从讨论中我们可以得出......的结论

9.From my point of view, it would be better if... 在我看来，如果……也许更好

四.举例句型

1.Here is one more example.这里有不止一个例子.

2.Take… for example. 就拿……为例子

五.常用于引言段的句型

1.Some people think that… 有些人认为…...

2.To be frank, I can not agree with their opinion for the reasons below. 坦率地说，我不能同意他们的意见，理由如下。

3. I believe the statement is valid because… 我认为这个论点是正确的，因为…...

4. I cannot entirely agree with the idea that... 我无法完全同意….这一观点的说法.

5. Along with the development of…, more and more... 随着……的发展，越来越多的...…

6.It is commonly/generally/widely/ believed /held/accepted/recognized that… 通常认为…...

7. As far as I am concerned, I completely agree with the former/ the latter. 就我而言，我完全同意前者/后者的观点。

六 表示比较和对比的常用句型

1. A is completely different from B. A和B完全不同。

2 The difference between A and B is/lies in... A和B不同的地方是......

七 演绎法常用的句型

1. There are several reasons for…, but in general, they come down to three major ones. 对于......有几个原因，但一般，可以归结为三个主要原因。

2. Many ways can contribute to solving this problem, but the following ones may be most effective.有很多方法可以解决这个问题，但下面的可能是最有效的。

3. Generally, the advantages can be listed as follows.一般来说，这些优势可以列举如下。

4.The reasons are as follows. 理由如下。

八 因果推理法常用句型

1.Because/Since we read the book, we have learned a lot. 由于阅读这本书，我们已经学到了很多。

2. We read the book; as a result / therefore / thus / hence / consequently / for this reason / because of this, weve learned a lot. 由于阅读这本书，我们已经学到了很多。

3. As a result of /Because of/Due to/Owing to reading the book, weve learned a lot. 由于阅读这本书，我们已经学到了很多。

喜欢秋天的雨,它有一种独特的味道。秋天的雨，追随着一片片落叶，调皮地打着旋儿;秋天的雨，细细的，像丝线，轻轻地，打在你的脸上，像温暖的丝巾划过。

秋天的雨，小小的雨丝，却可以下一整天。它不像夏天，空气中弥漫着的是那清新的草香;它没有什么味道，却能带给人清新的感觉。这几天，每天早晨，我都能感受到这样的清新。漫步在雨中，那千丝万缕的线儿，交叉着，飘到脸上，飘到眼睛里。索性丢掉了雨伞，想想，这么美好的雨，干嘛不去享受呢? 雨丝像是在像人诉说着它的哀愁，诉说着无尽的幽怨，它是那么地轻。雨中的人们，匆匆地走着，却忽视了这美好的一切。呵，这是梦境吗?真想轻轻地摸一摸这雨滴，但是它是那么的小。

一阵阵的风吹过，雨丝像一个调皮的小孩，向前跑着，跑着…… 或许秋雨更像少女一样多愁善感，它轻柔地可怜，它却是那么地细致。晶莹的露水在落叶上闪动，闪动……地面被它们打湿了，一个一个的水坑里，漂浮着叶子，像小船。雨点们却一个又一个地跳来跳去，天空的脸色更加阴沉了，它似乎在发怒了。雨点变大了，却还是那么轻盈，优雅地一转身，落到地上。

一阵阵寒风吹过，雨也停了下来。不知道是为什么，我这么喜欢秋天，似乎是因为，我是秋天出生的吧。秋天赋予了我情感。爱秋天的雨，它是多么轻柔。喜欢一个人安静地看书，或许就是秋天赋予我的文静。站在冷冷的秋风，我抬头望望天空，一丝丝的雨飘洒在我的脸上，多么的温暖!

呵，这秋天的雨!

[我喜欢秋天的雨作文

I like winter because I like snow .

Snow is common in winter .When winter comes every year ,I will go outside to play with snow with my friends .

Snow looks very white and pure.We often make snowmen around our houses.Sometimes we go skating on the ice .

It is cool to play with snow in winter.

秋天再一次真真切切地实实在在地来到我们的身边。秋天真不愧是秋天，它将我游荡的思绪顷刻之间带回故乡，牢牢地锁在故乡的那棵老柿子树上，锁在故乡的怀抱里。于是我便回故乡了。 Autumn to come to us again.It is indeed autumn in autumn. It brought my wandering thoughts back to his hometown, and he was firmly locked on the old persimmons tree in his hometown, and locked in the embrace of his hometown.So I returned to my hometown.

秋天是一个极美的季节。故乡的秋更让我陶醉。走出家门，眼睛里满是金黄。难怪人们把秋唤作“金秋”。对面山上各种各样大大小小的树木，都褪去了浓艳的胭脂，洗尽铅华，露出本来的面目。黄黄的皮肤在秋日的阳光照耀下，显露出她的天生丽质，万物无不为之动容。

我想，面对这般率真健康的美丽，病态的西施是否也会自愧不如呢?这样美好的日子里，我总喜欢到处闲逛。于是带上狗狗到屋旁的小山丘去“登高望远”。故乡的秋风总是很可人，就那么不紧不慢地吹着，好像这世界上的一切都与它无关，一副清高的神情，从耳畔、树梢在过，不着有丝痕迹。

小狗狗像是被她给迷住了，欢快地蹦着跳着，快活地晃动它的尾巴，似乎上要抓住可爱的秋风。然而秋风毕竟是不可驾驭的烈马。它驰骋开来，将片片树叶儿抖落下来，落了厚厚的一地。眼前这棵枫树被秋风激怒了，它热血沸腾、青筋突起，正准备与秋风决一死战。

然而它又是害羞的，它不习惯于表露自己的怒气。于是热血胀红了它的脸庞。它红艳的脸让人想起了腊月里的火和围巾，仿佛它倒成了温暖这瑟瑟发抖的大地的天使了。一片火红的枫叶落在我的肩头，然后从容地滑下，将我从沉思中拉了回来。

继续沿着山上的小路往前走，悠闲自在地挪动双脚，似乎自己也随着秋风一起超脱了尘世，正尽情享受冷眼看世风的情趣。突然，在层层红色的枫叶后面隐约出现了点点新绿。不禁为之一震，这盛夏的浓绿怎么会出现在深秋?莫非……

哦，对了，应该是松柏之类的东西吧。走近一瞧，果然是一棵苍松，根固执地扎向岩石的深处，高傲地挺立于众枫之间。走得累了，便找一块平坦的地方，索性躺下来，躺在火红的枫叶上，换一个角度来观察这枫树，欣赏这个美丽的世界。看了半天也没看出个所以然。忽而觉得自己好可笑，这美丽而的神圣的秋――故乡的金子般的秋，怎可以用尘世的语言来形容呢?这般亲切的秋，只能用心――用一颗虔诚的心去体会去思考去领悟。于是闭上眼睛，让思绪随秋风一起飞上蓝天，俯视所有的美好。

故乡的秋只能自己品味。奔波在外的你啊，秋天又到了，回家一趟吧，为心灵放一个小小的假。

Autumn, like a naughty little child, he ran the East, West stroll, while you do not pay attention, gave the earth painted a colorful color.

He gave the woods yellow, red and green, gave the field gold, red, white, gave the orchard purple, red, yellow, but the autumn gave the most beautiful scenery to the garden.

If you are on the way to the garden, you can smell the flowers in ten miles away, that fragrance fragrant, refreshing, people feel relaxed and happy.

We look at the chrysanthemum it, it is red, purple, yellow ... ... they have some of the head blooming, and some shy shy answer, and some poured branches, some polite, welcome guests to the arrival of the Their most beautiful, the most elegant side for everyone to see. Osmanthus is not as bold as chrysanthemums, hiding in the lush foliage in the exudes of fragrant aroma, and some also secretly clawed leaves, peeking peoples actions. A cluster of sweet-scented osmanthus embrace together, like a golden ball, looks very beautiful.

I love chrysanthemum and sweet-scented osmanthus, love them proud of the spirit of pride.

我最喜欢春天，因为春天是一个生机勃勃的季节。你看，太阳公公绽放着微笑，小鸟沐浴着温暖的阳光，在刚刚长出绿叶的枝头上叽叽喳喳，仿佛在迎接春天的到来。

I most like the spring, because spring is a vibrant season. You see, the sun with a smile, the bird bathed in warm sunshine, just grow green branches on twitter, as if to greet the arrival of spring.

我最喜欢春天，因为春天百花齐放，迎春花、梅花……争奇斗艳。那边的桃花挨挨挤挤的，三个一群，五个一伙，就像可爱的小娃娃;远远望去，又像从半山腰飘来的彩云。

I like spring best, because All flowers bloom together. spring, winter jasmine, plum...... Contests. The peach blossom endure endure crowded crowded, a group of three, a group of five, like the cute little baby; from afar, like floating clouds from the hillside.

我最喜欢春天，因为春天是一首优美的交响乐。冬眠的小动物都从梦中醒来。“叽叽”、“咕咕”……这首动听的交响乐总能让人陶醉于其中。

I most like the spring, because spring is a beautiful symphony. Small animal hibernation wake up from the dream. "Ji Ji", "cuckoo"... This is the first symphony always make people intoxicated.

我最喜欢春天，因为春天是个让人放飞梦想的季节。广场上，孩子们在快乐地放风筝。他们飞快地奔跑，手中的风筝带着他们的憧憬和希望飞上高高的蓝天……

I most like the spring, because spring is a season of dreams. Square, children were flying kites happily. They run fast, kite with their vision and hope to fly high in the blue sky......

我最喜欢春天，它不像夏天那样炎热难耐，不像秋天那样落叶纷飞，也不像冬天那样寒风刺骨，春天能让我尽情享受它的温暖和希望。

I like spring best, it is not so hot in summer, not like autumn leaves, winter is also not so cold, let me enjoy the warmth and hope of spring.

前几天我嚷嚷着让爸爸给我买鱼，他答应了。我们来到一个叫“海洋一族”的水族馆。

The other day I yelled for my father to buy me fish, and he said yes. We came to an aquarium called "marine family".

哇！好漂亮呀！我惊呆了，这里的鱼各式各样，有：热带鱼、野鱼苗……爸爸给我捞了七条鱼。有两条红色，两条黑的，三条花花的。我高兴地把它们带回了家。一到家，我就迫不及待地把它们放进鱼缸，并给它们喂了鱼食。

Wow! How beautiful! I was shocked, fish here are varied, including: tropical fish, wild fry...... My father fished me for seven fish. There are two red, two black, three huahua. I took them home happily. As soon as I got home, I couldnt wait to put them in the fish tank and fed them fish food.

就在第二天早上，鱼竟然死了三条，我十分伤心，爸爸安慰我，“没关系，别伤心。”听了爸爸的话，我的心情渐渐平静了下来。

On the morning of the second day, the fish died three, I was very sad, my father comforted me, "never mind, dont be sad."." After listening to my father, my mood gradually calmed down.

过了几天，剩下的四条鱼还活着，它们保持着旺盛的精力，游戏时它们摇头摆尾，舞动着鱼鳍。在水里欢快的游着。我给它们喂食的时候，它们总是争先恐后的抢食物，你追我赶。尤其是那条大金鱼，它非常霸道，另外三条小金鱼见了它，有些畏惧，总是小心的去吃食。

After a few days, the rest of the four fish alive, they maintained the exuberant energy, the game they yaotoubaiwei, waving fins. Swimming happily in the water. I to feed them, they always fall over each other to grab food, race each other. Especially the big goldfish, it is very overbearing, and the other three little goldfish see it, some fear, always careful to eat.

我很喜欢这几条小金鱼，我会好好爱护它们，并把它们喂养的更加健康，直到它们慢慢长大。

I like these little goldfish very much. I will take good care of them and keep them healthier until they grow up.

[我喜欢的动物英语作文及翻译

Autumn is coming, the sky is high. Blue sky floating a few white clouds, a group of geese arranged neatly fleet to the south. Waves of light sandwiched a piece of yellow leaves, like a butterfly in the music dancing.

In the fields, the rice came with waves of waves, and they scrambled to rush to the ridge, as if they were to the farmer, "I am familiar, and I am familiar, and I am going to enter the warehouse!

Park, chrysanthemum blossom open, red, yellow, white, purple, pink ... ... colorful, contests, like scrambling to show off their own body and appearance.

Orchard, the apple cooked like a newly born childs face, red pass, people reluctant to pick; persimmon tree hanging a light red lantern, I think, even in the absence of light at night, you can still see In front of the road. Grapes on the grapes are ripe, a channeling to squeeze together, from the green leaves out of the purple small head. That yellow pear pear, big people feel scared: afraid of the branches can not keep it, hit people who ... ...

Autumn, everywhere is a faction of the scene.

Autumn!

I like reading books when I have time.I think its a good way to relax and spend my free time.When I was a kidmy mother often read books for me before I went to bed.From then on I was interested in reading books."Books are mans best friends." Books give us knowledge.Through readingwe can understand more kinds of peoplehow do they think.When I readI always lose myself in the book and forget all my worries.I like reading all kinds of booksstory-booksnovels and so on.My farourite book is "Harry Porter".当我有时间时我喜欢读书.我认为读书时很好的放松和度过业余时间的好方法.当我还是个孩子时我母亲在我睡觉前经常给我读.从那时起我就对读书感兴趣.“书是人类最好的朋友”书给我们知识通过读书我们可以明白各种各样的人及他们如何的想法.当我读书时我总沉浸在书中忘记了我的烦恼.我喜欢读各种各样的书故事书小说等等.我最喜欢的书是《哈利波特》.

As we all know,animals are our friends.I like every animal.But I like dogs best.Dogs are not only very lovely,but also very helpful.Thats why we all feed dogs at home.I often share happiness and shorrow with it, which belongs to me three years ago,called"Betty".In other words,we should treat them as our real friends.Do you agree with me?

我们都知道,动物是我们的朋友。我喜欢所有的动物。但我最喜欢狗。狗不仅是很可爱,但也很有帮助。这就是为什么我们都喂狗在家里。我经常和它分享快乐,我三年前称它为“贝蒂”。换句话说,我们应该善待我们的真正的朋友。你同意我吗?

i like swimming. swimming is divided into categories of: he divided into butterfly, backstroke, breaststroke, freestyle and so on. swimming is also an olympic sport.

swimming movement is a human body in the water this particular environment, carried out under a sport. swimming athletes rely on arms and legs generate propulsive force action, so that the body forward swimming. modern swimming competition at the first session of the athens 1896 olympic games have already been listed as an official event. according to swimming posture, can be divided into butterfly, backstroke, breaststroke, and self-swimming. to have a formal game, as well as medley swim relay and mixed. swimming is also often can increase the bodys vital capacity. freestyle can also be a crawl. i like crawl of the. swimming also can speed up the metabolism, but also can promote blood circulation. swimming can also be fit and healthy.

the olympic games are moving toward us, we are also moving towards the olympic games. every chinese people are the masters of the olympic games 99. the twenty-second session of the olympic games slogan is:

one world, one dream. we hope to have a harmonious world. we must first build a harmonious china, harmonious home, harmonious campus, harmonious family.

[我喜欢游泳英语作文

有人喜欢鸟语花香的春天，有人喜欢充满活力的夏天，也有的人喜欢银装素裹的冬天。而我，则喜爱硕果累累的金秋。

秋天，是个美丽的季节。虽然，许多鲜花和小草已经枯黄衰落。但是，在百花凋零的季节里，菊花却傲霜斗雪，迎着寒风，绽开了它的第一个花苞。那微微颤动的花瓣，修长美丽，好像一个正在翩翩起舞的少女。菊花的颜色也很多。白的像堆积起来的层层白雪。粉的像天边绚丽的晚霞。千姿百态，各具风韵。秋天的枫叶也是美的，远远望去，红的好像正在熊熊燃烧的火焰。给枯黄的山坡，增添了一抹绚丽的色彩。秋天树叶儿也枯黄了，但青松、翠柏、香樟的叶子却是那么的绿，直逼你的眼。在瑟瑟的秋风里，又增添了一抹新绿。我爱秋天的美丽。

秋天，是个凄凉的季节。要不，怎么会有“举头望明月，低头思故乡”的思念?怎么会有“夕阳西下，断肠人在天涯”的悲哀?怎么又会有“乡书何处达?归雁洛阳边”的期盼?在秋雨绵绵中，一曲《昭君出塞》，让人想起了远嫁边境的昭君。她带着自己心爱的琵琶和对家乡的恋恋不舍走了，为了汉匈的友好相处和文化交流去了大漠。但终因思念家乡，而病死异国他乡。可她临死前仍不忘抱着从家乡带来的唯一的物品-----琵琶，带着思念，带着痛苦，她，就这样的走了。我爱秋天的凄凉。

dog is my favorite animal among all the animals.As we all know,dog is a lovely animal.i love it not only because of its cute shape,but also because of its loyalty.it will never betray its master.another reason why i love dog is that dog can make me happy.when i am sad,it will do everything he can to cheer me up and forget the unhappy things.so i will love dog for ever and ever.

Hot summer girl just left, gentle autumn girl walked on the footsteps of light, quietly came to earth.

The autumn girl dressed in a golden dress. She came softly on the grass. Although the autumn girls footsteps light, for fear of moving the grass sweet dream. However, the autumn girl left, the grass is not as tender as spring, nor as quiet as the summer, but showing a faint yellow goose.

Where did the autumn girl go? Oh! It was the original to the big tree, and it was like a piece of golden sea. Autumn leaves swept, leaves have fallen, some like butterflies dancing, and some like the Yellow Eagle wings fly, and some like the actors in the ballet. The ground is full of leaves, would like to put a layer of thick carpet.

The orchard of the harvest scene. Look, the apple that is covered with branches, head down, blush, how shy little girl! There is that piece of mature pomegranate red face, grinned, as if to tell jokes? The Look at the distant hawthorn, red like a round of flames of the flames, the peoples heart to burn up.

Walking in the country on the road, full of mature crops. In front of a golden corn, golden grain broke the coat of corn cobs.

Autumn girl quietly quietly to the big map on the brilliant colors, to the hard-working people to bring the joy of harvest!

Some people love to play badminton, some love to play football, others love swimming, but my favorite sport is basketball. It is very popular in China because of Yao Ming. Because of him, many boys in China get to know about basketball. He is so excellent that everybody wants to play like him. He is my idol.

有些人喜欢打羽毛球，有些人喜欢踢足球，其他人喜欢游泳。而我最喜欢的运动是篮球。因为姚明，篮球在中国很受欢迎。许多男孩子因为姚明而了解篮球。他如此的优秀，以至于每个人都想向他那样打球。他是我的偶像。

After school, I often play basketball with my friends. I am the tallest boy in my class, so I play as center. Playing basketball is not only good for our health, but also helping us to make friends. I hope someday I can be an outstanding player just like Yao Ming. Maybe in the future, I will go to NBA and win the champion.

放学后，我经常与朋友们打篮球。我是班里最高的男孩子，所以我打中锋。打篮球不但让我们保持身体健康，也让我们结交朋友。我希望有一天我能够成为向姚明那样优秀的篮球运动员。也许在不久的将来，我会去NBA打球，并赢得冠军。

[我最喜欢的运动优秀初中英语作文

秋天的风景很美,我很喜欢秋天。

秋天来了,凉凉的，我们都要穿厚厚的外套!

秋风来了, 叶子变红了、黄了,还有一些是绿色的。

我和弟弟去公园玩,我们在公园里看到很多很多叶子都掉下来了...叶子掉下来的时候,我弟弟说:“好美啊!”

我说:“秋天有时候还会下雨,下雨时会变更冷。也许就是因为冷，我觉得秋天的时候一个动物都看不见了。”

弟弟说：“但是有一种动物一定可以看到!那就是“蝴蝶”!

这时，一阵秋风吹来，秋天的落叶就像许多蝴蝶在空中飞翔，有红的，黄的，还有一些是绿色的。

我告诉弟弟等“蝴蝶”飞过后，很多果子熟了,比如桔子、苹果,嗯......反正有很多水果!”我最喜欢吃的水果就是桔子!我们一边笑一边回家了。

我觉得秋天太美了!

司欣灵

秋天是个好季节！

天空湛蓝湛蓝的，云朵像棉花糖，风一吹，有的像小熊，有的像小猫，还有的像小狗。

黄色和红色的枫叶落到了地上，像是给大地穿上了厚厚的毛衣，像魔法世界一样美丽。

果园里的梨黄澄澄，像小葫芦一样挂在那里，石榴咧开了嘴巴，苹果挂在枝头，像一个个小灯笼，农民伯伯开心的说：“今年的水果一定特别甜。”

花园里有好多菊花，白的、粉的、黄的。桂花的香味香飘十里，美人蕉火红火红的，漂亮极了。

秋天真是个丰收的好季节！

Why do leaves change color in the fall? asks Patricia Brown, of New York City.

Autumns cool days are trimmed with deep blue skies and golden light, and brilliant leaves of yellow, orange and red. Leaves changing color in the fall are a trees way of preparing for long winter, rather like we put up storm windows and pull warm clothes and blankets out of storage.

In summer, the leaves on trees like pin oaks and sugar maples are green because they are chock-full of the green pigment chlorophyll.

Trees need sunlight to produce chlorophyll. In turn, chlorophyll uses sunlights energy to split water (H2O) into hydrogen and oxygen. Meanwhile, leaves also absorb carbon dioxide gas from the air. The end products of leaf chemistry: carbohydrates (homemade plant food for the tree), and oxygen, released into the air (the gas we need to breathe). The whole process is called photosynthesis.

Along with green chlorophyll, most leaves also contain yellow, orange and red-orange pigments celled carotenoids. Trees dont need light to make carotenoids. Botanists call them "helper pigments," because carotenoids absorb some sunlight and (nicely) pass the energy along to chlorophyll. We dont see much of these deputy pigments (carotene, lycopene, and xanthophyll) in summer, because they are masked by abundant green chlorophyll.

But the ever-shortening days of fall mean less daylight and colder weather. The average tree is rushing to save all the nutrients it can for its winter hibernation. Nitrogen and phosphorus are pulled from leaves for storage in branches. A layer of corky cells grows between the leaves stems and their branches, reducing the leaves supply of nutrients and water.

With diminished sunlight, water, and nutrients, chlorophyll synthesis slows. Old, worn-out chlorophyll breaks down at the usual rate--ironically, sunlight destroys it--so each leafs stock gradually dwindles. And as the green fades, yellow and orange emerge from hiding.

Unlike the green and yellow pigments, red and purple pigments (anthocyanins, part of the flavonoid class) actually form in leaves in the autumn, tinting leaves scarlet and burgundy.

Botanists have long wondered why some trees are genetically programmed to manufacture anthocyanins in the fall. New research indicates that anthocyanins may be a trees own sunscreen.

Anthocyanins are made in a leafs sugary sap, with the help of lots of sun and cool temperatures. Botanists think that anthocyanins shield the leaves fading photosynthesis factories from too much sunlight, rather like the pigment melanin protects our skin from the sun. While the red pigments act as a shield, the tree feverishly breaks down and pulls nutrients out of leaves and into its limbs and trunk before leaves drop or die.

Anthocyanins may also act like Vitamin C or E, scavenging so-called "free radicals" before they can do oxidizing damage to a fall leafs fragile structure.

Upper and outer leaves tend to be reddest, since they are most exposed to sunlight and cold. In some trees, like sugar maples, the reds of the anthocyanins combined with the yellows of the carotenoids make especially brilliant orange leaves.

[经典英语作文：秋天叶子为什么会变颜色

说到秋天，我总会想起夏天，世界上很多人喜欢夏天，我却喜欢秋天，夏天可以吃冰淇淋，但是秋天不能吃。夏天可以吹空调，但是秋天不能。可是秋天有很多水果。

秋天是乡下人家最喜欢的季节，因为是收获的稻谷的时候，也是获水果的时候，这时家家户户都到自己的果园里，打动物的，摘水果。每人都有自己的事做，八九岁的男孩都来帮忙了，男孩子帮爸爸，女孩子帮妈妈。全村的人都忙了一天，哎，他们都一个个是满脸笑容，应为他们丰收了，秋天才成熟的果实，要苹果、橙子，等等等等。

有些人加水果太多了，吃不完，就拿到城市你去卖了。

说到，丰收之秋，并不是说一开始就有很多水果了，也不是说整个秋天都有水果。有的水果是什么时候才成熟，比如说桃子是四五月份就成熟了，所以不是我前面说的那样。

我喜欢秋天，秋天带给那乡下人快乐，带给我的是很多水果，古时候的人离开家乡去别人的家乡到了秋天就会想念自己的家乡，比如说：“张籍写的秋思就是这样的。”

我喜欢秋天。

I Like Basketball

My favorite Sports is basketball. It looks so cool in TV that I was crazy about those basketball stars ever since I was little.

Basketball requires speed, height and skills. I run, jump, switch, and try to hit! All parts of my body are exercised in this sport. I feel that I’m like wind flying in the playground for my goal, which makes me feel so GREat!

Basketball needs quick reaction and decision. When chance comes, it may disappear in the next second. I should keep an eye watching as an eagle, decide and judge quickly as a leopard, and run for it as a wolf.

Further more, basketball is a sports more than just exercising, It needs team work. No one can play himself. A team should work together. So I learn to cooperate with others in this game. I should understand what my teammate doing and what he needs me to do for him. On the other side, I should learn to show my teammate what I need. At the same time, I need to keep an eye on the whole game, knowing how is the situation of our team and how is the other team. It involved more cooperation and strategy.

I played basketball more for about 5 years now. I make many good friends throught this sports. It is proud to win honor for my team and my school. Also I enjoy all games with my friends. Basketball will be my best friends in the future and my best memory about school life.

[我喜欢篮球初中英语优秀作文