(共22张PPT)
概要写作
文本内容与结构解读
写作思路解读
写作思路微技能之信号词策略
表达微技能之句式变化篇
牛刀小试
参考范文欣赏
体裁:
主题:
结构:
1.文本内容与结构解读
体裁:说明文
主题:Teens lacking enough sleep
结构:
Para 1
Para 4
Para 2&3
Para 5
1.文本内容与结构解读
体裁:说明文
主题:Teens lacking enough sleep
结构:
Para 1
Para 4
Para 2&3
Para 5
1.文本内容与结构解读
阅读下面短文,根据其内容写一篇60词左右的内容概要。
Most teens need about 8 to more than 9 hours of sleep each night. The right amount of sleep is essential for anyone who wants to do well in tests or sports. And lack of sleep impacts everything from a person's ability to pay attention in class to his or her mood. It also damages teens ability to do their best in athletics. Unfortunately, Research shows that many teens don't get enough sleep, and more than 20% of high school students fall asleep in class.
Until recently, teens were often blamed for staying up late, oversleeping for school, and falling asleep in class. But recent studies show that adolescent sleep patterns actually differ from those of adults or kids.
These studies show that during the teen years, the body's circadian rhythm(昼夜节奏), which is controlled by a biological clock in the brain, is temporarily reset, telling a person to fall asleep later and wake up later. This change might arise from the fact that the brain hormone melatonin(褪黑激素)is produced later at night for teens than it is for kids and adults. This can make it harder for teens to fall asleep early.
These changes in the body's circadian rhythm are in line with a time when we're busier than ever. For most teens, the pressure to do well in school is more intense than when they were kids, and it's harder to get by without studying hard. And teens also have other time demands---everything from sports and other extracurricular activities(课外活动) to fitting in a part-time job to save money for college.
Early start time in some schools may also play a role in this sleep deficit. Teens who fall asleep after midnight may still have to get up early for school, meaning that they may only squeeze in 6 or 7 hours of sleep a night. A couple ours of missed sleep a night may not seem like a big deal, but can create a noticeable sleep deficit over time.
②
⑤
④
③
①
reason1
phenomenon
reason3
reason2
写作思路解读
Para. 1: Most teens need about 8 to more than 9 hours of sleep each night. The right amount of sleep is essential for anyone who wants to do well in tests or sports. And lack of sleep impacts everything from a person's ability to pay attention in class to his or her mood. It also damages teens ability to do their best in athletics. Unfortunately, research shows that many
teens don't get enough sleep, and more than 20%
of high school students fall asleep in class.
Para. 2: Until recently, teens were often blamed for staying up late, oversleeping for school, and falling asleep in class. But recent studies show that adolescent sleep patterns actually differ from those of adults or kids.
Para. 3: These studies show that during the teen years, the body's circadian rhythm(昼夜节奏), which is controlled by a biological clock in the brain, is temporarily reset, telling a person to fall asleep later and wake up later. This change might arise from the fact that
the brain hormone melatonin(褪黑激素)is produced
later at night for teens than it is for kids and
adults. This can make it harder for teens to
fall asleep early.
biological factor
2.写作思路解读
Para. 4: These changes in the body's circadian rhythm are in line with a time when we're busier than ever. For most teens, the pressure to do well in school is more intense than when they were kids, and it's harder to get by without studying hard. And teens also have other time demands---everything from sports and other extracurricular activities(课外活动) to fitting in a part-time job to save money for college.
2.写作思路解读
Para. 5: Early start time in some schools may also play a role in this sleep deficit. Teens who fall asleep after midnight may still have to get up early for school, meaning that they may only squeeze in 6 or 7 hours of sleep a night. A couple ours of missed sleep a night may not seem like a big deal, but can create a noticeable sleep deficit over time.
lack of sleep
2.写作思路解读
The right amount of sleep is essential ...
Unfortunately, Research shows that many teens don't get enough sleep...
Para.1:(要点1)
...adolescent sleep patterns actually differ from those of
adults or kids. /fall asleep later and wake up later/a biological factor
Para.2&3:(要点2)
These changes in the bodys circadian rhythm are in line with a time when we're busier than ever./the pressure to do well in school / other time demands
Para.4:(要点3)
Early start time in some schools may also play a role in this sleep deficit.
Para.5:(要点4)
要点
3.写作思路微技能之信号词策略
1
2
3
4
常见信号词
连续内容信号词语(后面会跟新的一部分内容)
also,
and,
another,
besides, furthermore, moreover,
as well (as)...
意义改变信号词(往往引出段落要点)
although,but,
despite, different from, even if/though, however,
in contrast,
instead of,
in spite of, nevertheless, yet...
顺序信号词(表明顺序)
first,
second,
third,
firstly,
secondly,
thirdly,
then,
next...
举例信号词(例子常要删去)
for example,
for instance, such as, specifically,
to illustrate...
Most teens need about 8 to more than 9 hours of sleep each night. The right amount of sleep is essential for anyone who wants to do well in tests or sports. And lack of sleep impacts everything from a person's ability to pay attention in class to his or her mood. It also damages teens ability to do their best in athletics. Unfortunately, Research shows that many teens don't get enough sleep, and more than 20% of high school students fall asleep in class.
Until recently, teens were often blamed for staying up late, oversleeping for school, and falling asleep in class. But recent studies show that adolescent sleep patterns actually differ from those of adults or kids.
These studies show that during the teen years, the body's circadian rhythm(昼夜节奏), which is controlled by a biological clock in the brain, is temporarily reset, telling a person to fall asleep later and wake up later. This change might arise from the fact that the brain hormone melatonin(褪黑激素)is produced later at night for teens than it is for kids and adults. This can make it harder for teens to fall asleep early.
These changes in the body's circadian rhythm are in line with a time when we're busier than ever. For most teens, the pressure to do well in school is more intense than when they were kids, and it's harder to get by without studying hard. And teens also have other time demands---everything from sports and other extracurricular activities(课外活动) to fitting in a part-time job to save money for college.
Early start time in some schools may also play a role in this sleep deficit. Teens who fall asleep after midnight may still have to get up early for school, meaning that they may only squeeze in 6 or 7 hours of sleep a night. A couple ours of missed sleep a night may not seem like a big deal, but can create a noticeable sleep deficit over time.
The right amount of sleep is essential for... Unfortunately, research shows that many teens don't get enough sleep...(要点1)
is essential for= It is important/significant/vital for sb. to do
many teens don't get enough sleep= lacking sleep is common among them
① Despite the fact that it is important for teens to get enough sleep, lacking sleep is common among them.
② Though enough sleep is vital to teens, many of them are short of sleep.
4.表达微技能之句式变化篇
要点一
But recent studies show that adolescent sleep patterns actually differ from those of adults or kids....telling a person to fall asleep later and wake up later. (要点2)
adolescent sleep patterns actually differ from those of adults or kids = different from adults or kids...
telling a person to fall asleep later and wake up later
= teens tend to sleep later and get up later
① Different from adults or kids, teens tend to sleep later and get up later due to a biological factor.
② The sleep patterns of the teens are different from others. They are used to sleeping later and getting up later because of a biological factor.
4.表达微技能之句式变化篇
要点二
.... we're busier than ever. For most teens, the pressure to do well in school is more intense than when they were kids, and it's harder to get by without studying hard. And teens also have other time demands...(要点3)
① Teens lead a busier life, because they have to bear higher study pressure and also face different challenges from life.
② Teens not only have to shoulder higher study pressure, but also face different challenges from life.
4.表达微技能之句式变化篇
要点三
Early start time in some schools may also play a role in this sleep deficit.(要点4)
① Students have to go to school early, accounting for another reason of lacking enough sleep.
② Some schools require the students to get to school early, which worsens the problem.
4.表达微技能之句式变化篇
要点四
一、复合句变简单句
1. This wastefulness has got us into the great trouble we are in now.
This wastefulness has caused ___________________________.
2. The food we eat seems to have a great effect on our health.
_________________________________________________.
3. If we get up early and do some morning exercise, we can build our bodies and become much healthier.
① _________________________________________, we can build our bodies and become much healthier.
② We can build our bodies and become much healthier by ______________________________.
4. Weight loss is more likely to be successful when people change their habits.
Changing habits _______________________________________________.
Keys: 1. us a lot of trouble 2. Our food affects our health 3. Getting up early and doing some morning exercise; getting up early and doing some morning exercise 4. a good way to lose weight/can help people lose weight
5.牛刀小试
us a lot of trouble
Our food affects our health
Getting up early and doing some morning exercise
getting up early and doing some morning exercise
a good way to lose weight/can help people lose weight
二、将两个句子合并成一个句子
1. It is cheaper to throw them away than to repair them. This has led to a great waste of the earth's resources.
① It is cheaper to throw them away than to repair them, ________________________________.
② It is cheaper to throw them away than to repair them, ________________________________.
2. We can watch some English-speaking TV programs and movies. They can broaden our horizons.
① We can watch some English-speaking TV programs and movies, _______________________.
② We can watch some English-speaking TV programs and movies, _______________________.
Keys: 1. which has led to a great waste of the earth's resources; leading to a great waste of the earth's resources 2. which can broaden our horizons; broadening our horizons
5.牛刀小试
which has led to a great waste of the earth's resources
leading to a great waste of the earth's resources
which can broaden our horizons
broadening our horizons
三、语态变化
1. We should attach great importance to getting up early.
Great importance ________________________________.
2. Some farmers raise their animals with additives not for their health, but just to make a profit.
Additives ___________(supply) to animals not for their health, but just to make a profit.
3. We should read more magazines and newspapers every day.
__________________________________________________________.
Keys: 1.should be attached to getting up early 2. are supplied 3.More magazines and newspapers should be read every day
5.牛刀小试
should be attached to getting up early
are supplied
More magazines and newspapers should be read every day
四、改变主语
1. It is cheaper to throw them away than to repair them.
To throw them away is ____________________________.
2. According to some experts, the effect of technology on human relationships is worrying.
Some experts ______________________________________________________.
3. Because of the sports stars, our life becomes more exciting and happier.
Sports stars bring __________________________________
Keys: 1. cheaper than to repair them 2.fear/are worried that technology can affect human relationships 3. us more excitement and happiness
5.牛刀小试
cheaper than to repair them
fear/are worried that technology can affect human relationships
us more excitement and happiness
五、特殊句式
How it affects our family relationships depends on our attitude toward technology.(It is...that...)
_____________________________________________________________
Key: It is our attitude toward technology that affects our family relationships
5.牛刀小试
It is our attitude toward technology that affects our family relationships
参考范文欣赏
Getting enough sleep is important for teens in many aspects. However, many teens lack sleep time and tend to fall asleep in class(要点 1), because biological factor causes them to possess the sleeping patterns different from adults’ and kids’ (要点2). Besides, teens are busy in working harder to catch up with the challenging life(要点 3). Additionally, early start time in school also contributes to teens’ sleep loss(要点 4).