高考英语之
概要写作-
Summary
目录
Catalog 1. 概要写作
解题思路
2. 例题精讲
3. 当堂训练
4. 课堂总结
第一段：划出下列语段中的关键信息（例如首句以及连词等）
Para. 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.
关键信息如下：
Para. 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.
Para. 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.
第二段：划出下列语段中的关键信息
关键信息如下：
Para. 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.
Para. 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.
关键信息如下：
Para. 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.
Para. 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.”
关键信息如下：
Para. 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.”
Tip 1: Rewrite at the sentence level
Tip 2: Rewrite at the word level
Step 2: 改写关键信息（用自己的语言转述）
Rewrite the key information in your own words
改写试一试：
Para. 1: Feeding the world’s population is a big
challenge, and it is about to get bigger.
_______________________________________
_______________________________________
(change the compound sentence into one simple sentence )
_______________________________________
_______________________________________
(change the subject)
答案
Para. 1: Feeding the world’s population is a big
challenge, and it is about to get bigger.
_Feeding_the _world's population is a bigger and bigger challenge._
(change the compound sentence into one simple sentence )
_It is a bigger and bigger challenge to feed the world's population.
(change the subject)
Para. 2: crops, breadbaskets. These areas often occupy a relatively small
portion of the globe.
_______________________________________
(simplify the sentence)
_______________________________________
_______________________________________
(use “many crops” as the subject)
答案：
Para. 2: crops, breadbaskets. These areas often occupy a relatively small
portion of the globe.
_Breadbaskets are often limited.
(simplify the sentence)
_Many crops are often grown on limited breadbaskets.
(use “many crops” as the subject)
Para. 3:
Big crop failures could cause an overall shortage
of food, called a “food shock”.
Food shocks could occur more frequently in the future. (combine the
two sentences)
. .
Big crop failures could cause an overall shortage of food, called a “food
shock”, which could occur more frequently in the future.
答案：
Para. 4
People can avoid food shocks by making
agriculture efficient and reducing food waste.
_______________________________________
_______________________________________
(change the active voice into passive voice)
(change the word “avoid”)
答案：
Para. 4
People can avoid food shocks by making
agriculture efficient and reducing food waste.
Food shocks can be avoided by making agriculture efficient and reducing food
waste.
It is more and more challenging to feed the growing global population. ________,
many crops are often grown on limited breadbaskets which are easily impacted
by bad weather. ________, big crop failures could cause an overall shortage of
food, called a “food shock”, which could occur more frequently in the future.
_______, food shocks can be prevented by making agriculture efficient and
reducing food waste. (68 words)
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. (68 words)
本课总结
1. 概要写作的“三步走”：
找关键信息
用自己的话改写
插入连接词
2. 自己动手“写一写”吧！
THANKS
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