Changes in Peoples Diet
From the chart we can see that during the past five years there have been great changes in peoples diet. The greatest change occurs in grain consumption, which has dropped 4% from 49% in 1986 to 45% in 1990 in total food consumption. The second greatest change is in milk consumption, which increased from 10% in 1986 to 13% in 1990. But on the other hand, two trends can be observed in the consumption of meat and fruit and vegetables. From 1986 to 1989, meat consumption increased from 17% to 23% while that of fruit and vegetables dropped from 24% to 20%. From 1989 to 1990, meat consumption dropped a little to 21%, while that of fruit and vegetables increased a little to 21%.
What has caused the great changes in peoples diet? The main reason, I think, lies in the improvement in peoples income level. With the development of our society, people are becoming richer and richer, which enables them to purchase more nutritious food such as meat and milk. In the meantime, grain consumption in peoples diet consequently dropped.
So from the analysis, we can draw a conclusion that our society is progressing and people are living a better life than ever before. We are now able to purchase more delicious and nutritious food, resulting in an improvement in our health.
指代意义决定谓语的单复数
被动形式表示主动意义
比较until和till
过去进行时
主动形式表示被动意义
不用进行时的动词
名词性wh
一般现在时代替将来时
强调句结构
以否定词开头作部分倒装
表示"据说"或"相信" 的词组
as, which 非限定性定语从句
一般现在时表将来
其他部分倒装
倒装句之部分倒装
不用被动语态的情况
特殊的虚拟语气词:should
句子的种类
谓语需用单数
并列连词与并列结构
用一般过去时代替完成时
并列结构作主语时谓语用复数
need "不必做"和"本不该做"
一般将来时
比较while, when, as
as, though 引导的倒装句
关系代词that 的用法
原因状语从句
need/want/require/worth
真实条件句
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