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(共16张PPT)
Writing a report on population change
Warm-up
What is the writing task
How do we talk about numbers changing over time What words can we use
Writing a report on population change.
(increase, decrease, go up ...)
Writing a report on population change
Pre-writing
Wang Yao is writing a report about the world population. Look at the line graph she found and help her complete the report. Use the words and phrases below to help you.
Title
Y-axis
X-axis
Writing a report on population change
Pre-writing
grew slowly
growing quickly
1.1 billion
2.5 billion
doubled
9 billion
Writing a report on population change
Pre-writing
What order did Wang Yao use in her report
What tense did Wang Yao use in her report
Which years did she mention in the report
What does “the population more than doubled” mean
Time order.
She used the simple past. In the last sentence, she used the simple future.
She mentioned the years 1800, 1950, 2000 and 2050.
The world population in 2000 was more than twice as big as in 1950.
Read Wang Yao’s report again and answer the questions.
Writing a report on population change
Pre-writing
Circle the expressions used to describe time.
Time expressions
before/after ...
during ...
in + YEAR
between YEAR and YEAR
about ... years later
Writing a report on population change
While-writing
Step 1 Plan Choose a city or province you are interested in. Find information about its population change over a period of time and make a line graph.
Title
Y-axis
X-axis
Writing a report on population change
While-writing
Work in groups and discuss the following questions.
What information does the line graph show
What time period should you mention in your report
Which words can you use to describe the change in population
Which tense(s) can you use
Writing a report on population change
While-writing
Step 2 Write Write a report about how the population changed over time. Remember to use the words and phrases in Exercise 1.
(title of the line graph)
The graph shows that ...
In ...,
During ... and ...,
About ... years later,
Writing a report on population change
While-writing
Words and expressions
Language
Third person perspective
Tenses: the simple past, the simple present and the simple future
Time expressions
before/after ...
during ...
in + YEAR
between YEAR and YEAR
about ... years later
Writing a report on population change
Post-writing
Step 3 Check and revise Check your writing and complete the chart, and then revise it.
评价内容 评分（1—5）
1. 我使用了折线图准确记录和表达了我收集的数据。
2. 我在报告中详尽地呈现了一个省份或地区一定时间内的人口变化。
3. 我在报告中运用了本单元学到的单词和短语。
4. 我的报告在拼写、语法、标点等方面没有错误。
Homework
基础作业
1. 在小组内互读报告，用互评表评价组内同学的报告，选出本组优秀报告。
2. 把每个小组的优秀报告和折线图贴在教室的黑板报上，进行学习交流。
拓展作业
和其他同学交换报告，在不看折线图的情况下，根据对方的报告绘制一幅折线图，并与原本的折线图对比，看报告是否准确反映了数据变化，能让读者快速了解数据和变化趋势。
province /9prBvIns/ n. 省份
Shenzhen is in the south of Guangdong Province.
sharply /9SA:pli/ adv. 急剧地；突然大幅度地
Between 1950 and 2000, the population rose sharply.
go up 上升
House prices in this area are going up again.
go down 下降
At night, the temperatures can go down to -20℃.

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