Diet Coke, diet Pepsi, diet pills, fat diet, vegetable diet. surrounded by the word "diet" everyw we look
and listen. We have so easily attracted by the promise and potential of diet products that we have
stopped thinking about what diet
products are doing to us. We are paying for products that harm us psychologically and physically
(身体上).
Diet products significantly weaken us psychologically. On one level, we are not allowing our brains to
admit that our weight problems lie not in actually losing the weight, but in controlling the consumption of
fatty, high-calorie, unhealthy foods. Diet products allow us to jump over the thinking stage and go straight
for the scale c秤) instead. All we have to do is to swallow or recognize the word "diet" in food labels.
On another level, diet products have greater psychological effects. Every time we have a zero-calorie
drink, we are telling ourselves without our awareness that
we don-t have to work to get results. Diet products make people believe that gain comes without pain, and
that life can be without resistance and struggle.
The danger of diet products lies not only in the psychological effects they have on us. but also in the
physical harm that they cause. Diet foods can indirectly harm our bodies because consuming them instead
of healthy foods means we are preventing our bodies from having basic nutrients (营养成分). Diet foods
and diet pills contain zero calorie only because the diet industry has created chemicals to produce these
wonder products. Diet products may not be nutritional, and the chemicals that go into diet products are
potentially dangerous.
Now that we are aware of the effects that diet products have on us, it is time to seriously think about
buying them. Losing weight lies in the power of minds, not in the power of medicals. Once we realize this,
we will be much better able to resist diet products, and therefore prevent the psychological and physical
harm that comes from using them.
B. people have difficulties in choosing diet products
C. diet products are misleading people
D. people are fed up with diet products
B. hesitate before they enjoy diet foods
C. pay attention to their own eating habits
D. watch their weight rather than their diet
B. it costs a lot to lose weight
C. diet products bring no pain
D. diet products are free from calories
A. are over-consumed
B.lack basic nutrients
C. are short of chemicals
D. provide too much energy
a feeling of panic, or a stress, that makes people want to stop whatever they are doing, try to relax, and
become calm again. "Stress"means pressure or tension. It is one of the most common causes of health
problems in modern life. Too much stress results in physical, emotional, and mental health problems.
There are numerous physical effects of stress. Stress can affect the heart.lt can increase the pulse rate,
make the heart miss beats, and can cause high blood pressure. Stress can affect the respiratory (呼吸)
system. It can lead to asthma(气喘). It can cause a person to breathe too fast, resulting in a loss of
important carbon dioxide. Stress can affect the stomach.lt can cause stomachaches and problems of
digesting food. These are only a few examples of the wide range of illnesses and symptoms resulting from
stress.
Emotions are also easily affected by stress. People suffering from stress often feel anxious. They may
have panic attacks. They may feel tired all the time. When people are under stress, they often overreact to
little problems. For example,a normally gentle parent under a lot of stress at l work may yell at a child for
dropping a glass of juice. Stress can make people angry, moody, or nervous.
Long-term stress can lead to a variety of serious mental! illnesses. Depression, an extreme feeling of
sadness and j hopelessness, can be the result of continued and increasing{ stress. Alcoholism and other
addictions often develop as a l result of overuse of alcohol or drugs to try to relieve stress. Eating
disorders, such as anorexia(神经性厌食),are sometimes caused by stress and often made worse by
stress. If stress is allowed to continue, then one"s mental health is put at risk.
It is obvious that stress is a serious problem.1t attacks the body. 1t affects the emotions. Untreated, it
may eventually result in mental illness. Stress has a great influence on the health and well-being of our
bodies, our feelings, and our minds. So, reduce stress: stop the world and rest for a while.
B.sleeping problems
C. mental problems
D.emotional problems
caused by stress?
A. the arms
B.the stomach
C. the lungs
D. the heart
B.A mother under stress may be cruel to her child.
C. Emotions are hardly affected by stress.
D. Eating disorders are sometimes caused by overuse of alcohol or drugs
1.
Habit is something we do very often. We do not think when we are doing it. We can have good habits
or bad habits. This text gives some advice on how to be healthy. It tells you what to do if you want to be
healthy. It also tells you what you must not do.lt talks about good habits and bad habits.
2.
Early to bed and early to rise makes a man healthy, wealthy and wise. This is an old English saying.
Have you heard of it before? It means that we must go to bed early and get up early in the morning. If we
do, we shall be healthy. We shall also be rich and clever.
3.
Is this true? Perhaps it is. The body must have enough sleep. Children of your age need ten hours" sleep
every night.lf you do not go to bed early, you can-t have enough sleep. Then you cannot think properly and
you cannot do your work properly. You will not be wise and you may not become wealthy.
4.
Some people go to bed late at night and get up late in the morning. This is not good for them. We must
sleep at night when it is dark. The dark helps us to sleep properly. When the daylight comes, we must get
up. This is the time for exercise. Exercise means doing things with the body. Walking, running, jumping,
swimming, playing games are all exercises. If the body is not used, it becomes weak. Exercise keeps it
strong.
5,
Exercise helps the blood to move around inside the body. This is very important. Blood takes food to
all parts of our bodies. The brains in our heads also need blood. We think with our brains.lf we keep our
bodies healthy and take exercise, we can think well.
A new weapon(武器) is on the way in the fight against smoking in Europe. Soon when smokers buy
cigarettes they might see a shocking photo of a blackened lung or a cancer patient staring back at them
from the packet.
Some boys may think of smoking as cool and sexy. Their friends won"t agree when they see their
packets of cigarettes Iying on the table. The European Union announced that it had chosen 42 photos that
showed the damage cigarettes could do to the body. It called on member nations to put these pictures on
packets to discourage smokers. To catch the attention of teenagers, the special packets warn of long-term
medical dangers, like cancer. Short-term effects, like bad skin, are also on the list.
"The true face of smoking is disease, death and horror. That is the message we should send to the
young," said David Byrne, an EU health official. " Hopefully these pictures will shock students out of their
love for cigarettes. "
The EU head office hoped the pictures would work better than current written warnings on packets of
cigarettes. The warnings included " smoking kills" and
"smoking can lead to a slow and painful death".
So far, Ireland and Belgium have shown interest in the photos. Canada has used similar pictures and
warnings on cigarette packets since 2000. The country has recently seen a fallin the number of the single
biggest cause of avoidable deaths in the EU. Every year more than 650,000 smokers die, more than one
person a minute.
B. photos printed in place of the wrrtten warnings
C. written warnings printed on the cigarette packets
D. shocking pictures put up where cigarettes are sold
B. Because it shows both dangers and effects.
C. Because it can be seen by the smokers" friends.
D. Because it is more powerful to catch attention.
B. Many smokers don"t quite believe the written warnings.
C. The new form of warnings has already been proved to work.
D. Smoking has caused more deaths than anything else in the EU.
B. A New Weapon
C. Young Smokers in Canada
D. Deaths from Smoking
The United Nations" weather agencysays 2010 was one of the warmest yearson record,
providing further evidence thatthe planet is slowly but surely heating
(无法处理)up.
The World Meteorological Organization says globalaverage temperatures last year
were just over half a degreeCelsius higher than the 1961~1990 period, slightly abovethe
temperature of 2005, and a little higher again over thatof 1998, which were previously
two of the top threewarmest years on record.
Michel Jarraud, an official in the World MeteorologicalOrganization, said, "We can
indeed report that 2010 is nowgoing to rank as the warmest year on record at the same
level as 2005 and 1998. "
The ten warmest years after records began in 1854 haveall occurred since 1998. Rising
global temperatures over the last century arecausing climate experts to worry.
The Geneva-based global weather agency says that lastyear"s extreme weather-notably
the heat wave in Russiaand monsoon(季风,雨季)flooding in Pakistan--hascontinued into
the new year.
Michel Jarraud also said, "What we can say is that withglobal warming some of these
events will become morefrequent or more intense. "
The UN agency contributes the extreme weatherpatterns to El Nino and La Nina,
which constantlydominated the world climate in 2010, bringing warm effectsand cooling
effects respectively.
Apart from extreme weather conditions, the WM() alsonoticed further melting of Arctic
sea-ice.ln December 2010,ice cover around the region registered its lowest level, 1. 35million
square kilometers below the 1979-2000 Decemberaverage.
B. the average temperatures of 1998 and 2005 were higher than that of 2010
C. 1998,2005 and 2010 were among the warmest tenycars on record
D. the earth is becoming cooler and cooler
B. The heat wave in Russia.
C. The monsoon flooding in Pakistan.
D. El Nino and La Nina.
B. Controlled.
C. Affected.
D. Raised.
B. 2010 was one of the warmest years on record.
C. The Arctic sea-ice is melting.
D. The extreme weather in 2010 and its effects.
A nearly ice-free Arctic Ocean inthe summer may happen three timessooner than scientists
have assessed.New research says the Arctic might lose
most of its ice cover in summer in as few as 30 years insteadof by the end of the century.
The amount of the Arctic Ocean covered by ice at theend of summer by then could be
only about 1 million squarekilometers. That"s compared to today"s ice extent c范围)of4. 6
million square kilometers. So much more open watercould be an advantage for shipping
and for extracting(开采)minerals and oil from the seabed, but it raises the questionof
ecosystem change.
While the Intergovernmental Panel on Climate Change in 2007 assessed what might
happen in the Arctic in the future based on results from more than a dozen globalclimate
models, two researchers said that the dram4tic dropsin the extent of ice at the end of
summer in 2007 and 2008called for a different approach.
Out of the 23 models now available, the newpredictions are based on the six most
suited for assessing sea ice, according to Muyin Wang, a climate scientist in a university
of Washington, and James Overland, an oceanographer. Wang and Overland sought
models that best matched what has actually happened in recent years,because, "if a
model can"t do today"s conditions well, howcan you trust its future predictions?" Wang
says. "
In recent years the combination of unusual warmtemperatures from natural causes
and the global warmingsignal have worked together to provide an earlier summersea-ice
loss than was predicted when scientists consideredthe effects from human-caused
carbon dioxide alone," saysOverland.
Scientists don"t expect the Arctic to be totally ice free,figuring that ice still will be
found along northern Canadaand Greenland where powerful winds sweeping across
theArctic Ocean force ice layers to slide on top of each other,making for a very thick
ice cover.
B. opinions from government officials
C. examples that were provided by the author
D. researchers" assessment of the global climate models
B. That there will be a very thick ice cover in northern Canada.
C. That the sea-ice loss was the effect of the unusual climate change.
D. That the temperature will be very low in the futurebecause of the sea ice.
B. 6
C. 12
D. 23
B. the cause of global warming
C. the new research about the Arctic sea-ice
D. how to do research with models .
- 1If you still have any other questions, please ______ your ha
- 2读我国南方某地农业生产景观图,完成下列问题。小题1:该地农业地域类型是A.大牧场放牧业B.混合农业C.季风水田农业D.乳
- 3设a=0.64.2,b=0.74.2,c=0.65.1,则a,b,c大小关系正确的是( )A.a>b>cB.b>a>c
- 4如图所示,在△ABC中,DEFG是正方形,D、E在BC边上,G、F分别在AB、AC边上,BC=a,BC边上的高为h,则正
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- 6下列化学名词书写正确的是( )A.正丁稀B.硝基笨C.乙酸乙脂D.氨基酸
- 7质点是常见的物理模型,下列机械运动所涉及的研究对象中,分析正确的是A.研究汽车在平直公路上行驶时,汽车可视为质点B.研究
- 8将一定量的石灰石放入烧杯中,加入100g的稀盐酸恰好完全反应(杂质不溶解也不参加反应),此时烧杯中物质的总质量比反应前物
- 9工业上用铝土矿(主要成分为A12O3,还有少量的Fe2O3,SiO2等杂质)提取氧化铝作冶炼铝的原料,提取的操作过程如下
- 10【题文】下列各句中,没有语病的一项是(3分)
- 1把氢氧化钠溶液和硫酸铜溶液加入某病人的尿液中,微热时如果观察到红色沉淀,说明该尿液中含有( )A.醋酸B.乙醇C.乙酸
- 2Every year, the coal workers their lungs X-rayed to
- 3ThoroughA.northernB.ThrillC.thoughD.without
- 4关于1mol/L K2SO4溶液的下列说法正确的是( )A.溶液中含有1mol K2SO4B.1mol K2SO4溶于
- 5下表是对几种生物体内农药含量的测定结果:这些生物与生物之间有着吃与被吃的关系,那么下列哪一条食物链的联系是正确的A.A→
- 6如图,已知E、F、G分别是△ABC各边的中点,△EBF的面积为2,则△ABC的面积为[ ]A.2B.4C.6D.
- 7依法执政是中国共产党执政的基本方式。下列选项能够体现中国共产党依法执政的是 A.坚持民主集中制,发展党内民主B.加强党员
- 8用馒头和炸里脊给狗喂食,一段时间后,从其胃的下端处引流出食糜,所含的物质( )①淀粉;②麦芽糖;③葡萄糖;④脂肪;⑤甘
- 9指南针运用于航海事业最早是在[ ]A、唐末 B、南宋C、北宋D、元朝
- 10【题文】若集合, , ( )A.B.C.D.