做好presentation开场白的表达技巧有哪些？
一般在开展presentation以前，必需的开场词和简略概括全是必须的，比如此次的pre大概是啥主题风格、包括了这些内容、及其很有可能的时间这些。假如一个pre是由好几个同学们轮着叙述，还可以对每一个人承担的一部分开展简易的归纳。
最先大伙儿能够从一些简易的”热荤场“的客套语句逐渐，必需的情况下简易地详细介绍下自身的情况或pre的目地，随后迅速进到主题。下列为presentation开场词的事例，供大伙儿参照：
Welcome/Hello everyone.
As you all know,this company is losing its market share,but we are being asked to increase sales by 20%–25%.How can we possibly increase sales in a shrinking market?
Today I am going to talk to you about how we can do this.My presentation will be in three parts.
Firstly I am going to look at the market and the background.Then I am going to talk to you about our new products and how they fit in.Finally,I'm going to examine some selling strategies that will help us increase our sales by 20%.
The presentation will probably take around 20 minutes.There will be time for questions at the end of my talk.
下边是一些好用的开场白口语英语表述：
My presentation is in three parts.
My presentation is divided into three main sections.Firstly,...Secondly,...Thirdly,...Finally…
I will talk about…
We will examine…
I'm gonna tell you something about the background…
I will give you some facts and figures…
We will concentrate on...
I will limit myself to the question of…
假如你给观众们互动交流或教师提出问题留了一点时间，能够那么说：
Please feel free to interrupt me if you have questions.
There will be time for questions at the end of the presentation.
I'd be grateful if you could ask your questions after the presentation.
02.Main Body行为主体一部分
在演说全过程中，很有可能会存有每一个一部分是单独的情况，也是有很有可能各一部分中间存有一定的关联性。小编以前的课程内容就存有好多个同学们各自提前准备不一样一部分，每一个人pre自身的一部分的状况，但另外要保证全部presentation的各一部分中间是存有一定关联性的，此刻就必须选用一些关联性的语汇。
这类状况下，你能试一试下边这种英语口语表达形式：
As I said at the beginning…
As you remember,we are concerned with…
This ties in with my original statement…
This relates directly to the question I put to you before…
03.Introduce Visuals表述表图
许多情况下为了更好地说明一些见解和专业知识情况，大伙儿在pre的情况下会交叉一些照片或是报表来做辅助表明。那样能够让观众对你所表述的数据信息有清楚的了解和掌握，也有利于自身能够更好地表述这种信息内容。
那么怎样引观众去看看数据图表呢?
This graph shows you…
Take a look at this…
If you look at this,you will see…
I'd like you to look at this…
This chart illustrates the figures…
This graph gives you a breakdown of…
在表述的全过程中，你能稍加间断以给观众们一些时间去消化吸收数据图表上内容，另外能够正确引导她们依照你的叙述方法和表述方式去了解数据图表的含意，例如像下边那样：
As you can see…
This clearly shows…
From this,we can understand how/why…
This area of the chart is interesting…
数据图表一般而言，分成line chart(条状图)和pie chart(扇形图)，实例以下：
1.Line charts show a relationship between two variables over a period time.
2.Pie charts are best for showing percentages and proportions.With pie charts,we show how important each part is,and how it adds up to the total.
那么，一般做演说采用的数据图表，一定是要讲各种各样转变、发展趋势。下边讨论一下各种各样转变如何正宗地表述，及其不一样转变状况，如升高、降低、有升有降、稳定等的实际表述：
一般水平的转变：slight,minor,steady
强烈水平的转变：dramatic,major,massive,disastrous,rapid,unparalleled
从时间维度看来的转变：gradual,sharp
1.升高的表述
一般水平升高:climb,rise,increase,gain,strengthen
强烈水平升高:surge,rocket,soar,go through the roof,jump
2.降低的表述
一般水平降低:decline,decrease,drop,fall,slide,weaken,dip
强烈水平降低:slump,crash,collapse,plummet,plunge
3.回暖的表述
rally,recover,improve,bounce back
比如：Our revenues took a slight dip in the third quarter but rallied to its previous levels within the first month of the fourth quarter.
4.平稳的表述
一般水平的平稳:hold steady,level off,stabilize
长期性的平稳:stale,immovable,stagnant
比如：Despite some ups and downs,our growth is relatively stable.(Positive)
比如：After a year of ups and downs,their growth is stagnant.(Doubtful)