英语主持人开场白我们英语课要搞个表演.内容如下：首先,我是环境与人口会议的主持人.我们成功地邀请了国外3位教授为我们介绍

英语主持人开场白
我们英语课要搞个表演.内容如下：
首先,我是环境与人口会议的主持人.
我们成功地邀请了国外3位教授为我们介绍他们各自国家的情况.
下面是我写的(麻烦英语高手看看有什么需要修改,
Ladies and Gentlemen,my Comrades
Good morning!
Welcome to the Conference of Population and Enviroment.
We will start by looking at some ways in which population pressures inflict upon the environment generally.
Today,we are honored and happy to have 3 foreigner Professor of Academy of Social Science with us.
They are Singapore Academy of Social Science,A;UK Academy of Political and Social Science,B;US Academy of Political and Social Science,C.
Let's welcome with warm applause.
Ok,now,let's warmly welcome Professor B
……(B演讲开始到结束）
Thanks for B's excellent speech.
Let's welcome A - The professor of Singapore Academy of Social Science to give a speech.
……(A演讲开始到结束）
Next,please welcome C-the famous professor of US Academy of Social Science with a warm of applause.
……(C演讲开始到结束）
Thanks for C's excellent speech.
From above,we can see the population and enviroment are conditioned by each other.the more population,the worse enviroment.And we should make Family planning if we want to have a sustainable development .Because Family planning is a means of assuring the collective interests and improving the standard of living of individuals.……
But,now I have to say:That’s all,thank you!

我不去改掉你的语言,只是做一些细节上的小小的修改
A-- 3 foreigner Professor (应该是foreign professor 但是最好不这样说,这样显得不够礼貌）你可以把这句话跟后面一句连起来.
Today,we are honored and happy to have 3 (可以加special 或者）Professors（可以把 Academy of Social Science省略掉）with us.
They are （应该加from)Singapore Academy of Social Science,A;UK Academy of Political and Social Science,B;US Academy of Political and Social Science,C.
B-- Let's welcome （加them)with warm applause.
C--Ok,now,（可以说first of all) 'ok,now'可以用在第二位演讲教授得前面/
D--每个教授讲完后的总结性发言可以换一些其他词汇,例如wonderful之类/
最后,我认为你的结束语还有待于改善/