语法的准确性和多样性是雅思写作和口语的四大评分标准之一,所谓知己知彼百战不殆,此时灵活的使用和转换句式,就显得so…oo…oo..oo important了。
本期我们一起去探索一下there be 句型中不可或缺的介词短语的使用。
There was an increase in the percentage of aging population in Japan, Sweden and the USA.
解析:通常 in +时间(如in 1940)/地点(国家、城市等);当然,在没有给出描述对象的句子中,可以用in引出描述对象
There was a general upward trend in the number of elderly people in all three countries over the period from 1940 to 2020.
There was a slight rise from 8% in 1940 to 10% in 1960 in the percentage of elderly people in the USA.
解析:from …to固定搭配,常常结对出现,表示“从…到…”,体现动态变化;但若上文说过起点数据,则直接写to+终点数据即可,表示“达到某个值”。
There was a sharp increase of /by 5% in the percentage of elderly people in 1980 in the USA.
解析:of +数据,表示变化的差值;by+数据,同样也表示变化的净增量或净减量,用来体现动态变化。
In the next four decades there was a gradual decrease to around14%,and then the figure will reach the peak at almost 25% in 2040.
解析:at +数据,表示某一时间的数据,多用于静态图;表示“到达峰值”,多用于动态图。
There would be an increase in the percentage of elderly people in all three countries, with almost 25% of the respective populations by the year 2040.
解析:with+数据,表示某个时刻的数据用法同at;数据整体增加或减少,with结构进行具体说明。
总结
在there be 句型的应用中,突出趋势的变化的同时,不要忽略介词在导入数据时的重要作用,让我们尝试着练习一下吧!
Exercise:根据C15T2图表
Between 2010 and 2017,there was an substantial increase in______visitors staying on cruise ships.
解析:the amount of +不可数名词,the percentage of 百分比,the proportion of 比例。visitor是可数名词故选择the number of
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