捷进英语b2u5.ppt

5
Dinner Table of
the World
第一页，共130页。
READING FOR LEARNING
2
READING FOR DONING
3
GUIDED yam
z-zucchini (西葫芦)
第五页，共130页。
Using key words to identify cause and effect
(利用关键词分辨因果)
在某些文章中，会重点陈述某事物产生的原因或由它带来的结果。阅读这类文章时，我们可根据一些关键指示词，如as a result, lead to, therefore, thus 等帮助我们快速定位并找出事物之间的因果关系。
READING FOR LEARNING
第六页，共130页。
Task 1
Read the text quickly. Answer the questions about the
effects of these things.
1 What is the effect of more and more people living in cities?
2 What are the benefits of vertical farming?
3 What do the conditions in space result in?
READING FOR LEARNING
第七页，共130页。
Feeding the World
译文
In the last 60 years, the world’s population has tripled from billion in
1950 to over 7 billion. Food became a big problem as we were not able to feed
everyone. Now the world’s population is forecast to continue growing and
may hit 11 billion by 2100. So in a world where nearly 1 billion people already
do not have enough food, can we really feed another 6 billion?
养活全世界
过去60 年，世界人口增长了三倍，从1950 年的25 亿增长到70 多亿。粮食问题已经成为一个大问题，因为我们一直没办法养活所有人。据预测，目前世界人口正持续增长，到2100 年，人口数量将达到110 亿。所以在世界范围内，已经有近10亿人口没有足够的口粮，我们能否真的再养活60 亿人口呢？
第八页，共130页。
Feeding the World
译文
Changing Diets
Population growth is not the only reason for food shortages. Our diet is also to blame for it. Nowadays, with increasing numbers of people living in cities, we tend to eat more meat. To produce meat we have to use a lot more land and water to grow the food for the animals. And we also need more energy to process the meat. As a result, we are using more land and resources to actually produce less food. We could feed the growing population easily if everyone became a vegetarian. But who would make this change? Would you give up meat to feed others?
改变饮食
人口增长并不是造成粮食短缺的唯一原因。我们的饮食（习惯）也难辞其咎。现在，越来越多的人居住在城市，人们吃肉越来越多。为了生产肉类，我们必须用更多的土地和水，以种植喂养动物的粮食。加工肉类也要消耗更多的能源。结果是，我们使用了更多的土地和资源，却生产出了更少的食物。如果每个人都变成素食者，我们就能轻松养活不断增长的人口。但谁愿意作出这种改变呢