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资料简介
阅读下面短文，根据其内容写一篇60词左右的内容概要。
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.
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.
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.
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.”
3. add some transitional words to make
the passage smooth.
1. Find out key information of each para.
2. Rewrite the key information
Express the same meaning using your own
words , phrases or structures.
Concise !!! 60-70 words
Step 1: Careful reading for the key words,
phrases or sentences in each paragraph
Underline or circle the key information
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. 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. 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. 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.
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. 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.
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. 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.”
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.”
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.”
Step 2: Rewrite the key information in
our own words
Tip 1: Rewrite at the sentence level
Tip 2: Rewrite at the word level
Para. 1: Feeding the world’s population is a big
challenge, and it is about to get bigger.
_______________________________________
_______________________________________
(change the compound sentence并列句
into one simple sentence简单句 )
_______________________________________
_______________________________________
(change the subject)
Feeding the world’s population is a ______ ____
______ challenge.
__ is a bigger and bigger challenge to feed the
world’s population.
bigger and
bigger
It
_______________________________________
_______________________________________
(change the word “world’s”)
_______________________________________
_______________________________________
(change the phrase “a bigger and bigger challenge”)
Para. 1: It is a bigger and bigger challenge to
feed the world’s population.
It is a bigger and bigger challenge to feed the
global population.
It is _____ ___ ____ ___________ to feed the
global population.
challenging more and more
Para. 1: It is more and more challenging to feed
the __________ global population.
(add an adjective)
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.
increasing
growing
Para. 2: crops, breadbaskets,
These areas often occupy a relatively small
portion of the globe.
_______________________________________
(simplify the sentence)
_______________________________________
_______________________________________
(use “many crops” as the subject)
Breadbaskets are often _______.
Many crops ____ _____ _______ on _______
breadbaskets.
limited
are often grown limited
Para. 2: The breadbaskets are easily affected
by bad weather.
_______________________________________
_______________________________________
(change the word “affect”)
Breadbaskets are easily _________ /________
by bad weather.
Many crops are often grown on limited
breadbaskets.
(combine the two sentences)
Para. 2: Many crops are often grown on limited
breadbaskets ______ are easily impacted
by bad weather.
that/
which
influenced impacted
Para. 3: big crop failures, could lead to,
a “food shock”
That means an overall shortage of food
would occur.
_______________________________________
(put the key phrases into one sentence)
_______________________________________
_______________________________________
(combine the two sentences)
Big crop failures could lead to a “food shock”.
Big crop failures could lead to a “food shock”
__________ means an overall shortage of food.that/which
Big crop failures could lead to an overall
shortage of food, ______ a “food shock”.called
Para. 3:
Big crop failures could lead to an overall
shortage of food, called a “food shock”.
_______________________________________
_______________________________________
(change the phrase “lead to”)
Big crop failures could cause an overall shortage
of food, called a “food shock”.
result in /contribute toaccount for/
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. 3:
Food shocks could occur more ____________
in the future.
(use one adverb)
frequently
/often
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”, ____ could occur
more frequently in the future.
which
Para. 4:
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.
_______________________________________
_______________________________________
(change the subject of the second sentence)
Cutting down on food waste is one of the most
effective ways to fight against food shocks.
(change the phrase “cut down on”)
Reducing food waste
Para. 4:
Making agriculture efficient is one choice.
Reducing food waste is one of the most
effective ways to fight against food shocks.
So what can people do to help avoid food
shocks?
People can avoid food shocks by ___________
__________ _______ and ________ _____ ____.
making
agriculture efficient reducing food waste
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”)
Food shocks can be avoided by making
agriculture efficient and reducing food waste.
prevented
Step 3: add some transitional words to make
the passage smooth.
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.
For one thing,
For another,
One reason is that
Another reason is that
However,
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)
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