一篇短文的段落一般分为引导段、主题段和结尾段。每段的主题句非常重要，是作者思维的起点，切题的准绳，阐述的对象。看到段落主题句，读者大致了解段落要阐述的内容。段落主题句通常是一个语法结构完整、内容概括、用词简洁明了的单句。通常将段落主题句置于段落的开头，可使文章结构更清晰，有说服力。
关于保护濒危动物的英语作文范文一：
Everyone knows animals are our friends.So we should be friendly to them.But some people kill the rare animals,such as pandas,golden monkeys and so on in order to get money.It will cause these animals to disappear soon.I think our government should punish those people severely who kill the rare animals.It is our duty to protect the endangered animals
参考翻译：
每个人都知道动物是我们的朋友。所以我们应该对他们友好。但有些人捕杀稀有动物，如大熊猫，金丝猴等为了得到钱。这会导致这些动物很快消失。我认为我们的政府应该惩罚那些严重者捕杀稀有动物。保护濒临灭绝的动物是我们的职责。
关于保护濒危动物的英语作文范文二：
From the passage we know that thousands of endangered animals are facing the threat of being bought and sold on the internet. Traders make a great profit from it，which is illegal.
As is often read in the newspaper reports， wild life especially the rare species are threatened with extinction. Human beings are making attempts to hunt wild animals for a big profit， which， of course， results in a sharp decrease in the number of animals.
Therefore， it is high time for us to take quick action to protect them. First of all， it’s quite necessary for every citizen to realize the importance of animal protection. Only by knowing its importance can people develop a sense of responsibility. In addition， the government should pass some laws to forbid any hunting of rare animals.
If I were one of the endangered animals， I would hope that man could be a good friend of mine rather than my enemy.
关于保护濒危动物的英语作文范文三：
With the development of economic,people now living a better life.But at the same time,many of the earth's animals have already died out. Nowdays,more and more animals lost their homes and they have no choice but to face the sorrow of missing relatives and friends.What makes it comes about?What makes their living condition even worse?The answer is human! Some people cut down plenty of trees to make fortunes,which damaged the forest and made the animals lost their home.And there are also some greedy people even hunt for animals to make money,which lead a terrible result--a number of animals are in danger. Each anmimal especially wildlife is our friend, they play an important role in ecological balance.So,lets take action, planting trees,buliding birdhouses and so on to pretect our earth.
关于保护濒危动物的英语作文范文四：
Protect Animals
As we all know , animals are man's friends.Nowadays with the development of industry ,a lot of animals are in danger of extinction. We should protect animals so that we can live in a better environment .To protect them ,our government should forbid people to kill them , and for most of us ,we can plant more trees and call for protecting anmimal's habitats.Only if we protect animals well can we have a bright future!