【写作积累】

2. 细节描述

（1）The number of sth had a dramatic/slight increase/decrease during the span from始时to终时, which was from始量to终量

（2）There be a speedy/moderate rise/drop from 始量 to 终量 in the number/proportion of sth between始时and终时.

There was a speedy rise from 0.4 billion to 4 billion in the number of mobile phone subscriptions between 2000 and 2008.

（3）A dramatic/slight increase/decrease from 始量 to 终量 was witnessed in the number of sth during the span from 始时 to 终时.

（4）主题词 has experienced an apparent tendency of decrease/increase, with the proportion/number declining/rising to 终量.

（5） The number/figures/situation of sth bottomed out in年份.

A的数字(情况)在某年达到底部。

（6）The number of 对象1 is 数字 times as much/many as the number of 对象2.

对象1的数量是对象2数量的…倍。

The number of mobile phone subscription in developing countries is four times as many as that in developed countries.

（7）The percentage of sth1 is slightly larger/smaller than that of sth2.

Sth1的比例比sth2的比例略高(低)。

（8）表示波动

The number of sth experienced an evident fluctuation from…to…（可加数字也可加年份）

Eg: The number of mobile phone subscriptions experienced an evident fluctuation from 1 billion to 1.5 billion.

The number of sth has/have witnessed a swing from…to…（可加数字也可加年份）

The number of sth rises/ rose and falls/ fell repeatedly from…to…（可加数字也可加年份）

（9）静态表达

1.由……组成：consist of, be made up of, be composed of

2.占多大比例：account for, make up, take up, occupy

Eg: The fee of transportation accounts for 52%.

（10）表示不变的表达

Over

the period from年份to年份, the number of sth remained level.

在…至…期间，…基本不变。

The number of sth remained steady/stable from 年份to 年份.

月(年)至…月(年) A的数量基本不变。

There is not a great deal of difference between the number of A and B

…与…的区别不大。

There is not a great deal of difference in terms of the sales number of American cars from 2000 to 2005

往期回顾

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2018年英语四级写作预测：留学生活

2018年英语四级写作：广告