something that you can"t sleep at night? 1 This worry in your mind can made your body feel bad. You
may feel angry, frustrated, scared, or afraid—which can give you a stomachache or a headache.
2 Good or normal stress might happen when you"re called to answer a question in class or when
you have to give a speech. This kind of stress that can help you to get things better done. 3
But bad stress can happen if the stressful feelings keep going over a long time. You may not feel well
if your parents are fighting, if a family member is sick, if you"re having problems at school, or if you"re
going through anything else that makes you upset every day. 4
5 That means making good decisions about how to spend your time. If you"re only dealing with
school stuff and have no time to play, you can get stressed. Make sure you keep yourself in mind: Sleep,
Exercise , Leisure(休闲),and Food. If you take care of yourself and get enough sleep and food, and if
you exercise and leave time for fun stuff, you"ll probably be less stressed out!
A. However, there are two different kinds of stress.
B. Can you tell a kind of stress from another one?
C. The best way to keep stress away is to have a balanced life.
D. That kind of stress isn"t going to help you, and it can actually make you sick.
E. Since bad stress is harmful for us, you"d better try to change it into good stress.
F. If so, then you know what stress is. Stress is what you feel when you are worried or uncomfortable
about something.
G. For example, you may do a better job on your test if the stress pushes you to prepare well before the
test.
seriously. Now, however, doctors have begun to look into laughter and the effects it has on
the human body. 2. _________.
Tests were carried out to study the effects of laughter on the body. People watched funny
films while doctors checked their hearts, blood pressure, breathing and muscles. It was
found that laughter has similar effects to physical exercise. 3.__________. If laughter
exercises the body, it must be beneficial(有益的).
Other tests have shown that laughter appears to be able to reduce the effect of pain on the
body. In one experiment doctors produced pain in groups of students who listened to
different radio programs. The group that tolerated(忍耐) the pain for the longest time was
the group which listened to a funny program.4._________.
5.__________. They have found that even if their patients do not really feel like
laughing, making them smile is enough to produce beneficial effects similar to those caused
by laughter.
A. Laughter can prolong(延长)one"s life.
B. As a result of these discoveries, some doctors in the United States now hold laughter clinics in which they help to improve their patients" condition by encouraging them to laugh.
C. The reason why laughter can reduce pain seems to be that it helps to produce a kind of chemicals in the brain which diminish (减少) both stress and pain.
D. It increases blood pressure, the heart beating and breathing; it also works several groups of muscles in the face, the stomach and even the feet.
E. Although laughter helps cure the disease, doctors still can not put this theory into clinic practice.
F. Laughter is the best medicine.
G. They have found that laughter really can improve people"s health
The shortage of clean drinking water is a major problem worldwide.The World Health Organization
says more than one billion people live in areas where fresh water resources are not available.The problem
is especially serious in Asia and the Pacific.A United Nations report says water availability in that area is
the second lowest in the world,after Africa.
Nearly half a billion people in Asia and the Pacific don"t have enough safe drinking water.The United
Nations report notes that the world"s poor countries are also the ones that use the most water for
agriculture.Agriculture uses about 80% of the water in the AsiaPacific area.There has also been an increase in water used for industry.India used three times more industrial water between 1999 and 2009 than in the past.
The shortage of clean drinking water around the world forces millions of people to drink unsafe water.
This leads to an increase in diseases like diarrhea (腹泻),the second leading cause of death in children.
Floods,pollution and climate change have made the water crisis more serious.
The Millennium Development Goals for 2015 plans a 50% decrease in the number of people without
safe drinking water.Scientists,governments and aid organizations around the world are increasing their
efforts to meet these goals.Still the United Nations says there is much work to be done.During this World Water Day celebration it called on other organizations to work together to fight against the water crisis.
The American researchers are designing a new technology for turning sea water into drinking water.The process uses electricity to help bring salt out from sea water to make it drinkable.The technology removed 99% of the salt and other harmful materials from sea water.So far the method has purified only small
amounts of water.But the researchers say it may someday be available as a personal water purifying
machine.
1. Which of the following has the lowest water availability in the world?
A. Asia.
B. Africa.
C. Europe.
D. Australia.
2. What"s the condition of water in poor countries?
A. The problem of wasting water is much serious.
B. Industry has been using most of the water.
C. Most of the water is used for watering farms.
D. The increasing population causes the water crisis.
3. From the passage we can know ________.
A. more people around the world are paying attention to the water crisis
B. World Water Day is celebrated every four years by the United Nations
C. more organizations are sending safe drinking water to the people in need
D. the water crisis will be solved with the effort of many organizations by 2015
4. What do we know about the new technology for turning sea water into drinking water?
A. It can take all the salt and harmful materials from sea water.
B. Scientists have made it widely used in daily life by now.
C. It has turned a large amount of sea water into drinking water.
D. It will cost some electricity during the process of purification.
5. The passage mainly tells us ________.
A. which country has the least drinking water
B. which country has the most agricultural land
C. the ways to reduce the water waste
D. the water crisis humans meet with
In a world with limited land,water and other natural resources,the harm from the traditional business
model is on the rise.Actually,the past decade has seen more and more forests disappearing and the globe
becoming increasingly warm.People now realize that this unhealthy situation must be changed,and that we must be able to develop in sustainable ways.That means growth with low carbon or development of
sustainable products.In other words,we should keep the earth healthy while using its supply of natural
resources.
Today,sustainable development is a popular trend in many countries.According to a recent study,the
global market for lowcarbon energy will become three times bigger over the next decade.China,for
example,has set its mind on leading that market,hoping to seize chances in the new round of the global
energy revolution.It is now trying hard to make full use of wind and solar energy,and is spending a huge
amount of money making electric cars and highspeed trains.In addition,we are also seeing great growth in
the global markets for sustainable products such as palm oil,which is produced without cutting down
valuable rainforest.In recent years the markets for sustainable products have grown by more than 50%.
Governments can fully develop the potential of these new markets.First,they can set high targets for
reducing carbon emissions (排放) and targets for saving and reusing energy.Besides,stronger arrangement of public resources like forests can also help to speed up the development.Finally,governments can avoid
the huge expenses that are taking us in the wrong direction,and redirecting some of those expenses can
accelerate the change from traditional model to a sustainable one.
The major challenge of this century is to find ways to meet the needs of a growing population within the limits of this single planet.That is no small task,but it offers abundant new chances for sustainable product
industries.
1. The traditional business model is harmful because of all the following EXCEPT that ________.
A. it makes the world warmer
B. it consumes natural resources
C. it brings severe damage to forests
D. it makes growth hard to continue
2. What can we infer from Paragraph 2?
A. China lacks wind and solar energy.
B. China is the leader of the lowcarbon market.
C. Highspeed trains are a lowcarbon development.
D. Palm oil is made at the cost of valuable forests.
3. To full develop the lowcarbon markets,,government can ________.
A. cut public expenses
B. forbid carbon emission
C. develop public resources
D. encourage energy conservation
4. We can learn from the last paragraph that businesses have many chances to ________.
A. develop sustainable products
B. explore new natural resources
C. make full use of natural resources
D. deal with the major challenge
5. What is the main purpose of the passage?
A. To introduce a new business model.
B. To compare two business models.
C. To predict a change of the global market.
D. To advocate sustainable development.
Body Power: This class uses weights and aerobic movements to increase strength while burning fat. It is suitable for all levels of fitness.
Aerobics(有氧运动): This is a low to medium level of difficulty aerobics class. It is good for beginner
to average levels of fitness.
Beginner Aerobics: This class has low levels of difficulty and simple aerobic movements. It is mainly for people who have not exercised before or who are just returning after a long break or injury.
Body Stretch: This is relaxation class which stretches all the muscle groups. It is suitable for all levels of fitness. People who exercise regularly or have a stressful lifestyle would also benefit from this class.
Body burn: This is a high level of difficulty aerobics class that mainly targets fat burning. It is only for
those people with a very high level of fitness.
1. On Wednesday the fitness class at 6:30 pm is ________.
A. Aerobics
B. Body Power
C. Body Burn
D. Beginner Aerobics
2. The two classes that are suitable for all levels of fitness are ________.
A. Aerobics and Body Power
B. Body Power and Body Stretch
C. Body Burn and Aerobics
D. Body Stretch and Beginner Aerobics
3. Lena wants to go to the city Gym on Saturday. She has not exercised for a long time. The best time for her to go would be ________.
A. 3:00 pm
B. 5:30 pm
C. 7:15 am
D. 7:30 pm
4. In which class are weights used?
A. Aerobics
B. Body Burn.
C. Body Power
D. Body Stretch
5. The main goal of the Body Burn class is to _________.
A. reduce stress
B. reduce fat levels
C. increase strength
D. increase muscle size
阅读理解
Trees are useful to man in three important ways: they give him wood and other useful things, they give
him cool places, and they help to stop drought and flood.
Unluckily, in many parts of the world, man has not found that the third of these points is the most
important. Man wants to make money from trees, so he has cut them down in large numbers, only to find
that without them he has lost the best friends he had. And also, he is usually too careless to plant and look after new trees. So the forests slowly disappear.
This does not only mean that man will have fewer trees. The results are even worse: for where there are trees, their roots break up soil, make the rain in, and also bind the soil, thus stopping it from being washed away easily; but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When all the top-soil is gone, nothing is left but useless desert.
1. The most important points of trees to man is ________.
A. they help him to make money
B. they give him cool
C. they give him wood and other things
D. they help him to stop drought and floods
2. In many places forests slowly disappear because ________.
A. many trees have been cut down by man
B. new trees are not well looked after
C. man has not paid enough attention to planting trees
D. all the above
3. Land becomes desert after all trees are cut down because ________.
A. roots of trees break up the soil
B. there are too many rainfalls to make it
C. strong winds bring a lot of sand
D. no tree keeps the rain and protects the top-soil.
4. Which title best fits the passage?
A. Trees and Man
B. The Function of Tree Wood
C. How do People do with Trees?
D. The Usage of Tree Roots
- 1下列关于二氧化硫的判断错误的是A.无色无气味B.有毒C.能使品红褪色D.非金属氧化物
- 2即使尊重父母,也不能父母说怎样就怎样完全顺从。[ ]
- 3阅读并排序 下面的短文由六个段落组成,开头和结尾已给出,其余的四个段落均是随机排列的。请根据段落之间的逻辑关系,用字母A
- 42011年,中央决定大幅度减免新疆困难地区企业所得税,免除新疆困难地区公益性项目的配套资金,同时,全国19个省市对口援助
- 5∫3-4|x+2|dx=______.
- 6听对话,选择图片。 1. How does Kate study for an English test? [
- 7在下列现象中,物体的质量将发生改变的是( )A.搬动的课桌B.一杯水结成冰C.压扁的橡皮泥D.使用中的粉笔
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- 9质量为m的物块,沿着半径为R的半球形金属壳内壁滑下,半球形金属壳竖直放置,开口向上,滑到最低点时速度大小为V,若物体与球
- 10下列各项中注音有误的一项是( )A.shè十恶不赦羞赧nǎn赫赫有名hèB.shěn哂笑栖息qī洒脱sǎC.zhào年
- 1点P(-3,-4)关于y轴对称点的坐标是______.
- 2已知两圆的圆心距O1O2为3,⊙O1的半径为1,⊙O2的半径为2,则⊙O1与⊙O2的位置关系为______.
- 3He ____ me to keep away from cigarette and take more exercis
- 4投资者在配置资产组合时需要对风险与收益进行权衡取舍。从下图中可以看出[ ]A.不投资股票,风险和收益均为零B.投
- 5古筝是一种弦乐器,演奏者用手拨弦,使弦______发出声音;古筝和琵琶合奏《春江花月夜》时,人们能分辨出古筝和琵琶演奏的
- 6关于印度与巴基斯坦为了克什米尔的归属问题而引发的纷争,说法正确的是[ ]A.克什米尔是一个国家 B.国与国之间应
- 7下图表示岩石圈与水循环的关系。①②③表示三大类岩石,甲、乙、丙、丁为海陆间循环各环节,箭头a、b、c、d为岩石圈与水循环
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- 9若集合,,则 ( )A.B.C.D.
- 10(本小题满分12分)已知二次函数=,且不等式的解集为(1)求的解析式(2)若不等式对于恒成立,求实数m的取值范围