1A tree has three main parts, the roots, the branches and the leaves. Under the ground, the roots spread out so that the tree can stand firm. Above the ground, the roots form the trunk, and the trunk supports the branches. Near the top of the tree, the trunk divides into branches. At the top of the tree, the leaves grow out of the branches. The leaves receive sunlight to help the whole tree grow.
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谢谢 祝学习进步！

Spring
returns
to
the
earth.
春天返回到地球。
Spring
makes
everything
young
again
except
man
春天使一切再次年轻，男人除外。
A
single
flower
does
not
make
a
spring.
一朵鲜花并不能使一个春天。
A
year's
plan
starts
with
spring.
一年从春天开始的计划。
望采纳~~

1.Do you konw Arbor Day A very good holiday. On this day People will take the initiative to plant trees.As you konw,green plants on Earth and people very helpful.So, Arbor Day is my favorite holiday.And in this day I can do some extraordinary things and they are really make sense.They are go//www.souquanme.comod experiences for me.
你知道植树节？一个很好的假期。在这一天，人们会主动种植树.你知道，地球上的绿色植物和人民非常helpful.So，植树节是我最喜欢的holiday.和这一天，我可以做一些非凡的事情，他们是真正意义。他们对我很好的经验。
2.Arbor Day (Day of Trees) （植树节） Planting Trees Day comes on March 12 every year. Do you know what can we do to help on the day 每年的03月12日是植树节，你知道在这天我们要做些什么吗？ In China, Planting Trees Day is on March 12. This special day began in 1979. On that day, people can plant many trees. And if we plant trees more, we must also take care of the trees by watering them until they grow up to be strong. In different countries, Planting Trees Days are on different days. Like in India, Planting Trees Day is on July 1. 在中国，植树节在03月12日。这特殊日子在1979年开始。在那一天，人们要种许多的树。如果我们种了许多的树木，我们必须照顾好它们，并按时浇水，直到它们茁壮成长。在不同国家，植树节在不同的日子。例如在印度，植树节在07月01日。 Why do the people plant trees It is very easy. Because they want to protect the environment. There are many people who want to earn the money form only cutting down trees. So more and more trees are cut by them. But kind people want to protect the environment and make the air clean. So they plant trees xOgQuxJCas many as they can.xOgQuxJC 为什么人们要植树？这很简单。因为他们想要保卫环境。有许多想要通过砍伐树www.souquanme.com木来挣钱的人。那样越来越多树被他们砍断。但是善良人们想要保卫环境和使空气变得干净。因此他们尽最大努力的植树。 All these actions show that people should pay more attention to the envixOgQuxJCronment. We want to make it better, don’t we So we must plant more trees to protect the environment. 所有这些行动展示人们将去更多的注意环境。我们希望变得更好，不是吗？所以我们必须植更多的树来保护环境。 So, everyone, if you want to make the air clean, please try your best to protect the environment and plant more trees. 因此，每个人，如果你想要使空气变得干净，那么请更好的保护环境和种更多的树。