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阅读理解。     Sometimes, people are not clear about what kind of food is healthy and what kind of food may do harm
to our health. The USDA has prepared a food guide to help people learn about which kind of food is the
healthiest to eat. The food guide describes six main food groups: meat ( like fish and chicken), dairy ( like
milk and cheese),grains (like bread and rice),fruit, and vegetables. The last group is fats and sweets. The
USDA also suggests how much of each food group is healthy to eat daily. Though this guide was prepared
by the US government, it is very useful for people all over the world.
     (1) As a result of years of study, we know that too much animal fat is bad for our health. For example,
Americans eat a lot of meat and only a small amount (量) of grains, fruit and vegetables. Because of the way
they eat, they have a high rate (率) of cancer and heart disease. In Japan, people eat large amounts of grains
and very little meat. The Japanese also have a very low rate of cancer and heart disease. The Japanese live
longer than anyone else in the world. However, when Japanese people move to the US, the rate of heart disease
and cancer goes up as their eating habit changes. And as hamburgers, ice creams and other high-fat foods
become popular in Japan, the rate of heart disease and cancer is going up there as well. (2) People are also
eating more meat and dairy food in other countries, in those countries the disease rate is going up with the
change of people"s eating habit.
Doctors everywhere suggest people eat more grains, fruit and vegetables and
less meat and dairy food.
     (3) Eating healthily is important for children as well as their parents. When parents have poor eating habits,
their children usually do, too. After all, children eat the same way as their parents. When parents eat healthy
food, the children will learn to enjoy it, too. Then they will develop good eating habits. Doctors suggest parents
give their children healthier food such as fruit, vegetables and juice.
     Everyone wants to live a long, healthy life. We know that the food we eat affects (影响) us in different
ways. For example, doctors believe that fruit and vegetables can really protect people from many different
diseases. On the other hand, animal fat can cause (引起) diseases. We can change our eating habits now and
enjoy many years of healthy living. 1. 将(1)处的句子翻译成汉语。
    ___________________________________________ 
2. 将(2)处的句子改写为含定语从句的句子。 
    ___________________________________________ 
3. 将(3)处的句子改写成同义句。 
    ___________________________________________ 
答案
1. 由于多年的研究,我们知道太多的动物脂肪对我们的健康有害。
2. People are also eating more meat and dairy food in other countries, in which the disease rate is
  going up with the change of people"s eating habit.
3. Eating healthily is important for not only children but also their parents./Eating healthily is important
  for both children and their parents.
(答案不唯一)
核心考点
试题【阅读理解。     Sometimes, people are not clear about what kind of food is healthy and】;主要考察你对科普环保类等知识点的理解。[详细]
举一反三
完形填空。     Mental health is about the way you think and feel and your ability to deal with ups and downs. Even though
you are mentally healthy, it doesn"t   1   that you don"t have a mental health problem.
     Mental health is everyone"s business. We all have times when we feel down or   2  . Most of the time those
feelings pass,   3   sometimes they develop into a more serious problem. It seems that our mental health doesn"t
always stay the same. It can change as the environment changes and as you move   4   different stages (阶段)
of your life.
     Here are four practical   5   to look after your mental health. Making simple changes to how you live doesn"t
cost much or take up lots of time. Anyone can   6   them.
     ●Talk about your feelings. It can help you stay in good mental health. It isn"t a sign of   7  , but part of your
ability to do what you can to stay healthy.
     ●Eat well. What you eat and how you feel are   8   connected. A proper diet can have a good effect on your
mental health.
     ●Keep in touch. Friends and family members can offer   9   suggestions which may help you keep active and
solve practical problems.
     ●Take a break. It could be a weekend  10  new places to enjoy the nature, or even a ten-minute break from
doing your homework. A few minutes can be enough to relax you.
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(     )1. A. agree     
(     )2. A. excited   
(     )3. A. but       
(     )4. A. away      
(     )5. A. answers   
(     )6. A. follow    
(     )7. A. weakness  
(     )8. A. easily    
(     )9. A. difficult 
(     )10. A. protecting
B. mean        
B. satisfied   
B. and       
B. inside        
B. replies     
B. find          
B. laziness       
B. closely       
B. terrible    
B. exploring 
C. doubt          
C. surprised   
C. so          
C. through        
C. ways      
C. advise         
C. happiness      
C. equally        
C. strange    
C. providing
D. notice            
D. stressed        
D. as               
D. against          
D. chances    
D. count              
D. richness            
D. hardly          
D. various        
D. imagining  
阅读理解。
     You are probably familiar with the saying: An apple a day keeps the doctor away. A recent research
carried out by the Chinese University of Hong Kong may change the saying: An apple a day may keep aging
away.
     The research chose fruit flies (果蝇), as they share many genes (基因) with humans. The fruit flies were
either fed normally or had an apple extract (浓缩物) added to their diet.
     It turned out that those fruit flies that were given apple extract lived about 55 days - five days longer than
the flies that were normally fed. The research group also found it easier for the flies to walk, climb and move
about as they aged.
     According to the result, the researchers believed that the antioxidants (抗氧化剂) in the apple extract
helped clean up dangerous chemicals (化学物质) that cause illnesses, as well as aging.
     In another study, researchers examined diets of thousands of women. They discovered that those who
regularly ate apples were 20 percent less likely to suffer heart illnesses and stroke.
     The apples" genetic code (***) was discovered recently. It allows scientists to develop nicer and healthier
fruits. Researchers are already using the information to grow a kind of apples full of antioxidants that can keep
eyes and joints healthy and protect humans against heart illnesses and cancer.
     Apples that kill the desire (***) to eat could also be produced, with the first "extra-healthy" apples on
supermarket shelves within just four or five years.
     The team that keeps studying apple DNA includes 100 scientists from five countries. Their research also
suggests that around 65 million years ago, when dinosaurs began to die off, the plant, which would finally
become today"s apple tree, experienced a great genetic change. The number of many of its genes doubled.
The extra genes allowed the apple to get used to worse conditions and go through a different development
from peaches, strawberries and other related fruits.
1. Why were fruit flies used for the research?
A. Because they have a similar diet to humans.
B. Because they have a history as long as apples.
C. Because they share a lot of genes with humans.
D. Because they feed on nothing but apple extract.
2. What result did the researchers find out?
A. Apples produce chemicals that can change human genes.
B. Apples have antioxidants that kill chemicals that cause aging.
C. Apples are rich in vitamins that are needed in humans" bodies.
D. Apples produce chemicals that make apples taste more delicious.
3. What happened to apples around 65 million years ago according to the research?
A. Their genes stopped their development as the environment got worse.
B. Their genes became twice in number but they finally died off like dinosaurs.
C. They experienced a great genetic change making them used to worse conditions.
D. They went through a similar development to peaches, strawberries and other related fruits.
4. What can we infer (推断) from the passage?
A. Eating apples may bring us more advantages than we might believe before.
B. People who have the habit of eating apples don"t need to see a doctor.
C. Apples that kill the desire to eat are already available in supermarkets now.
D. People will eat apples instead of peaches and strawberries from now on.
阅读理解。
     Every time you turn on the television or take a ride in a car,you could be adding to a problem called acid
rain (酸雨). In this article, you"ll learn how acid is created, and how it affects us, and more importantly, what
we all can do to prevent it. 
How is acid rain created?
     When people use fuels (燃料), such as coal and gasoline, poisonous gases are give off. When these gases
mix with rain, acid rain forms. Many power stations burn fuels in order to creat the electricity (电) that we
use in our homes and offices every day. Cars and trucks also send these gases into the air when they burn
gasoline.When rain mixes with these gases, harmful things called acids form. This is acid rain.
How does acid rain affect us?
     Acid rain damages (毁坏) everything that it touches. It poisons our rivers, ponds, lakes, and oceans along
with all the life in them. It pollutes our soil and crops, harms trees, and can even kill fish and plants. Acid rain
also eats away at buildings.
How can we prevent acid rain?
     We need to cut down on the pollution that gets into our air. Turn off lights, television, and other electrical
appliances if you are not using them, Walk or take a bike whenever possible. If you are travelling a long
distance, take a bus or train to save fuel.
     As research shows, acid rain harms our environment. But people everywhere can take small steps now to
help protect our environment for future generations.
1. When power stations burn fuel, ______.
A. acid rain form
B. air pollution is caused
C. noise pollution is caused
D. acid rain gets heavier
2. According to the article, acid rain affects us ______.
A. suddenly
B. slightly
C. seriously
D. immediately
3. What advice does the article give us?
A. Go to school on foot or by bike if we can.
B. Go to bed earlier in order to use less electricity.
C. Travel by bus to prevent acid rain.
D. Turn off the television on rainy days.
4. What is the best title of the article?
A. Preventing Acid Rain
B. Forming of Acid Rain
C. Acid rain, Heavy Rain
D. Acid Rain, Killer Rain
阅读理解。
     There has been a lot of rain in California recently. Villagers and leaders there begin to be worried because
they have found two birds died from a disease, West Nile Virus (病毒).
     West Nile Virus is carried by mosquitoes (蚊子).The symptoms (症状) are just like the flu. However, it
can cause dangerous brain problems. When it rains a lot, it will leave a lot of water in ponds and trees. These
places are good for mosquitoes. Mosquitoes lay their eggs in the water. Warm weather will help the mosquito
eggs to develop and then the number is increasing. Birds eat the mosquitoes and get sick. People can get the
disease if they are bitten (叮咬) by mosquitoes with West Nile Virus.
     The government is trying its best go stop the spread of West Nile Virus. People are asked to wear long
sleeves (长袖) and pants, close their windows and shut the doors. At the same time, workers have been sent
out to check the wet areas. If they find mosquitoes they will use some special medicine to kill them.
1. Why did the two birds die?
A. They died from West Nile Virus.
B. They could not get enough food.
C. The villagers killed them.
2. From the passage we know West Nile Virus is carried by ______.
A. flu
B. mosquitoes
C. water
3. People will get the disease if ______.
A. they get wet in rainy days
B. they are bitten by any mosquito
C. they are bitten by mosquitoes with West Nile Virus
4. People are asked to wear long sleeves and pants in order to ______.
A. keep warm
B. check the wet areas
C. avoid being bitten by mosquitoes
完形填空。
     More and more people are becoming interested in the internet. They have formed a bad habit. In fact, the
bad habit has become a   1  -Internet Addiction Disorder (IAD网络综合症). Staying   2   for more than six
hours a day   3   working or studying, and feeling very upset from not being able to get online, are the two
major symptoms (症状) of IAD.
     Internet addiction (上瘾) is   4   in China now. A recent research   5   that 42% of Chinese young people
get quite interested in the web, while only 18% of Americans feel in the same   6  .
     What causes IAD? Some people believe that It"s the lack (缺乏) of family care. Most children in China
are the   7   ones in their families. They are only told to   8   hard, but few really care about their personal
interest. So some children would like to keep   9   away from the real world.
     How can people stay away from IAD? Don t get online any more, go back to the real world and if it doesn"t
work, go to see the  10 .
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