概要写作 1 Feeding the world’s population is a big challenge, and it is about to get bigger. Right now
英语作文范文 03-05
概要写作
1 Feeding the world’s population is a big challenge, and it is about to get bigger. Right now, a little more than 7.3 billion people share the planet. By 2050, some scientists estimate, the world’s population may reach 9 billion. However, the changing climate will probably make feeding this far greater number a very frightening task. That is the conclusion reached by some scientists.
2 Just three crops—wheat, rice and corn—provide more than two-thirds of the calories that people consume. Such crops, and a small number of other important crops, come from farming regions sometimes referred to as “breadbaskets”. However, these areas often occupy a relatively small portion(部分) of the globe. Worse still, the breadbaskets are easily affected by bad weather. Events such as widespread flooding or extended heat wave can kill crops. That’s especially true if the bad weather occurs when a crop is young, fruiting or approaching harvest.
3 Unfortunately, big crop failures in two or more breadbaskets could lead to what researchers call a “food shock”. That means an overall shortage of food would occur. Extreme food shocks used to happen every century. Or to put it another way, that’s only about once in very four generations of humans. However, according to studies, as the climate warms, high and low temperatures become more extreme, and by 2050, food shocks could occur about once every 30 years. In other words, a person born in the middle of the current century might live through two or three extreme food shocks during their lifetime.
4 So what can people do to help avoid food shocks? Making agriculture efficient is one choice. But one of the most effective ways to fight against food shocks might be to cut down on food waste. “If we could cut food waste in half,” said Seth Cook, a British environmental scientist, “we could feed an extra billion people.”
要点1: It is more and more challenging to feed the increasing global population.
要点2: Many crops are often grown on limited breadbaskets that/which are easily impacted by bad weather.
要点3: Big crop failures could cause an overall shortage of food, called a “food shock”, which could occur more frequently in the future.
要点4: Food shocks can be prevented by making agriculture efficient and reducing food waste.
It is more and more challenging to feed the growing global population. For one thing, many crops are often grown on limited breadbaskets which are easily impacted by bad weather. For another, big crop failures could cause an overall shortage of food, called a “food shock”, which could occur more frequently in the future. However, food shocks can be prevented by making agriculture efficient and reducing food waste.
1 Feeding the world’s population is a big challenge, and it is about to get bigger. Right now, a little more than 7.3 billion people share the planet. By 2050, some scientists estimate, the world’s population may reach 9 billion. However, the changing climate will probably make feeding this far greater number a very frightening task. That is the conclusion reached by some scientists.
2 Just three crops—wheat, rice and corn—provide more than two-thirds of the calories that people consume. Such crops, and a small number of other important crops, come from farming regions sometimes referred to as “breadbaskets”. However, these areas often occupy a relatively small portion(部分) of the globe. Worse still, the breadbaskets are easily affected by bad weather. Events such as widespread flooding or extended heat wave can kill crops. That’s especially true if the bad weather occurs when a crop is young, fruiting or approaching harvest.
3 Unfortunately, big crop failures in two or more breadbaskets could lead to what researchers call a “food shock”. That means an overall shortage of food would occur. Extreme food shocks used to happen every century. Or to put it another way, that’s only about once in very four generations of humans. However, according to studies, as the climate warms, high and low temperatures become more extreme, and by 2050, food shocks could occur about once every 30 years. In other words, a person born in the middle of the current century might live through two or three extreme food shocks during their lifetime.
4 So what can people do to help avoid food shocks? Making agriculture efficient is one choice. But one of the most effective ways to fight against food shocks might be to cut down on food waste. “If we could cut food waste in half,” said Seth Cook, a British environmental scientist, “we could feed an extra billion people.”
要点1: It is more and more challenging to feed the increasing global population.
要点2: Many crops are often grown on limited breadbaskets that/which are easily impacted by bad weather.
要点3: Big crop failures could cause an overall shortage of food, called a “food shock”, which could occur more frequently in the future.
要点4: Food shocks can be prevented by making agriculture efficient and reducing food waste.
It is more and more challenging to feed the growing global population. For one thing, many crops are often grown on limited breadbaskets which are easily impacted by bad weather. For another, big crop failures could cause an overall shortage of food, called a “food shock”, which could occur more frequently in the future. However, food shocks can be prevented by making agriculture efficient and reducing food waste.
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