如您需写的文章是关于图表，您应注意资料是固定在某一个时间（fixed in time）还是在连串的时间中转变（changes over time）。如资料是一直转变的，您应用适当的文字和句子描述。资料转变可以是增加（Increase），减少（Decrease），波动（Fluctuate）或稳定（Remain Stable）。一般有两种文法可以表达：
动词 + 副词形式（Verb+Adverb form）
形容词 + 名词形式（Adjective+Noun form）
The number of (cars)
VERB + ADVERB FORM increased jumped rose significantly decreased dropped fell fluctuated slightly suddenly rapidly dramatically sharply steeply steadily gradually slowly from (June) to (December). between (June) and (December). There was a (very)
ADJECTIVE + NOUN FORM sudden rapid dramatic significant sharp steep steady gradual slow slight increase jump rise decrease drop fall fluctuation
in the number of (cars) from ... to ... in the number of (cars) between ... and ...
并不是每个词都能配合，例如sharp fluctuation.
以下的句法是用于描述稳定资料
The number of (cars sold) remained
steady stable from (June) to (December).
between (June) to (December). stayed the same
There was little hardly any no change
in the number of (cars sold) from ... to ... between ... and ...
资料的不同状态有不同的用字，以下是一些例子：
Steady drop
sharp rise peak
dramatic fall
sharp drop through
(to) bottom out
(to) reach the bottom gradual increase
(to) reach a plateau
(to) remain steady
以下是如何描述最高点或最低点的参考句子：
The monthly profit The figures The situation peaked in December. at 20% reached a peak a high (point) bottomed out reached rock the bottom a low (point) hit a trough 用动词的时候，要小心注意时式（tense）和语态（Voice）是否恰当，如果是要描述事件过程或步骤，应用现在式（present tense）和被动词（passive voice）来描述每个过程或步骤。 您也可用动名词（Gerund）和不定词（Infinitive）来加强句子的完整性。
例句：
The second stage involves conducting suitable research.
Notes are taken from available literature at the library.
(2) I am writing to you because I am unable to pay next month's rent which is due on Saturday. Unfortunately, the other day I lost my wallet, and there was a large amount of money inside. I have,(3) therefore, had to write to my parents to ask them to send me some money urgently. As soon as it arrives, I will immediately notify you and arrange to pay by cash or cheque. I hope that this does not cause you too much inconvenience. There are also some problems with the flat that I wish to bring to your attention. (4) First, the cold tap in the bathroom will not turn off properly, and the water is dripping constantly. This will need to be fixed quickly because it is wasting water. Second, one of the back rings on the top of the oven does not work at all. I'm sorry that I cannot pay the rent on time, and trust that you will understand. (5) Yours sincerely, Mary Campisi
1、标题不能写错。如您不知对方的性别，您应该用“Sir/Madam”； 2、每段应有不同但清楚的要点。您可用以下句子作为文章开始：““I am writing to you because ...”“I am writing to you in reference to ...”； 3、用适当的连接词如“Therefore”，“However”和“Also”； 4、您也可用顺序词如“First”“Second”等； 5、在商业信件时用“Your Sincerely”来完结而在私人信件时用“Best wishes”； 6、开始时应先交待写信的原因。如需要写的是正式信件，千万不要用“How are you?”等句作开头； 7、证明出您已做的事和想做的事； 8、如您的要求会令人不便，您可用“I hope”； 9、您必须写齐所有问题要求，您所写的要点，否则您的分数一定不会高； 10、您最后一句或最后一段通常是用来重申写信的目的。
与介绍文一样，主体文每段的第一句都是用来说明整段的大意，之后的内容可用连接词（如 However, Although, Not only, Also, Even though, Consequently, In addition 等等）或顺序词（Firstly, Secondly, Thirdly ...）连贯在一起。
Those who disagree believe that ... may argue that ... point out that ...
However, I strongly disagree ...
Nothing could be further from the truth (Strong disagreement) because ...
. In fact, ...
... for the following reasons: I find it hard to agree ...
Nevertheless, I cannot agree ... (Mild disagreement)
Perhaps this is true, but it cannot be denied that ...
This is partly true, then again ... ( Concessional disagreement)
14.结论 (Conclusion)
结论文的开始通常都会用一个特别结论句式（ In general, To sum up, To conclude, In conclusion等等）来串联整段。在结论文中，条件句（Conditional sentence）(If...., ....)是非常有用的，当然，您在文章的其他位置是可以用条件句，当您用条件句时，您须注意有没有文法错误。