Write a report for a university lecturer describing the information below.

You should write at least 150 words.

You should spend about 20 minutes on this task.

Graph 2 shows improvements in life expectancy and infant mortality between 1970 and 1992. Life expectancy was just 60 in 1970 but rose to almost 72 in 1992. In contrast, the number of babies dying dropped dramatically, from 60 per 1000 in 1970 to only 22 in 1992.

The charts below show the percentage of their food budget the average family spent on restaurant meals in different years. The graph shows the number of meals eaten in fast food restaurants and sit-down restaurants.

You should write at least 150 words.

Give reasons for your answer and include any relevant examples from your own knowledge or experience.

Where families eat their restaurant meals also changed during that 30-year period. In 1970, families ate the same number of meals at fast food and sit-down restaurants. In 1980, families ate slightly more frequently at sit-down restaurants. However, since 1990, fast food restaurants serve more meals to the families than do the sit-down restaurants. Most of the restaurant meals from 2000 were eaten at fast food restaurants. If this pattern continues, eventually the number of meals that families eat at fast food restaurants could double the number of meals they eat at sit-down restaurants.

二．临界值

分析认为，临界值写法属于非主流写法，但是却是可以起到意想不到的好效果。所谓临界值就是在变化趋势较多的折线中从横向或者纵向划一条线，然后分别描写上下的数据。

Write a report describing the information in the graph below.

You should write at least 150 words.

You should spend about 20 minutes on this task.

The main season for sales is in the December to May period. Sales were consistently above 200 million dirhams per month, rising sharply to a peak of 350 million dirhams in March. However, for the next four months, sales declined steadily, reaching an annual low of 120 million dirhams in July.

In August, there was a sudden increase. Sales almost doubled, rising from 120 million dirhams in July to 210 million dirhams in August. This was followed by a drop in September, back to the July figure.

From September to October, sales recovered, from 120 to 180 million. In October and November, sales remained steady, and there was a small increase in December to 190 million dirhams.

从图中我们可以将纵轴中的200处划条横线，将数据上下分为2段，然后分别描述上方和下方的数据。