Climate change could affect food supplies, water resources, human health and homes.
If greenhouse gas emissions keep increasing at the current rate, global temperature is expected to rise between 2°C and 6°C by 2100. This doesn’t sound much, but a 5°C change is the difference between the current warm period and an ice age. 
Global warming leads to other changes in the climate: melting ice, more evaporation(蒸發(fā)), changes in geographical patterns of rainfall, heavier downpours separated by longer dry spells, more frequent heat waves, more intense hurricanes, and sea level rise. 
These changes could affect crop growth as drought, increased evaporation and shrinking glaciers（冰川）disrupt water supply. Some crops could suffer heat stress. While there may be benefits in some regions, overall climate change is likely to have a negative impact on global food supplies. The impacts of climate change on agriculture will vary widely around the world. A global temperature rise of 1–2 °C is expected to increase food production in some regions, particularly mid-latitude areas. But in tropical regions even a small amount of warming could reduce crop yields. A temperature rise of 3 °C or more could threaten global food resources, as all regions are likely to experience negative impacts overall.
Freshwater resources could also diminish, especially in tropical regions, as rain patterns change and evaporation speeds up. Some communities could lose essential melt water as glaciers disappear, while more intense rainfall and hurricanes could cause more flooding, leading to water pollution and bacterial diseases such as cholera（霍亂）becoming more widespread. 
Climate change could lead to a variety of health impacts – both positive and negative. On the negative side, scientists anticipate more cases of malnutrition, heatstroke and waterborne diseases such as cholera. Although some populations will benefit from a reduced risk of cold-related illnesses such as hypothermia, overall a warming world is likely to have negative effects on human health.
Scientists also expect damage to homes and buildings from more intense hurricanes, heavier rainfall and rising sea levels. Climate change is likely to affect infrastructure by increasing the risk of both coastal and inland flooding around the world, owing to a combination of heavier rainfall, rising sea levels and increased storm damage. Homes and buildings could also be affected by the thawing of frozen ground and greater risk of forest fires.
The consequences of climate change will have an impact on people around the world.
小題1:With global temperature increased by 1–2 °C, _______.
A．crops yields could be increased in tropical regions
B．food production could rise throughout the world
C．chances are that food resources would be threatened overall
D．mid-latitude areas are likely to experience positive impacts
小題2:The underlined word “hypothermia” in Paragraph 6 possibly means a serious medical condition caused by_______.
A．lower temperature than normal
B．higher temperature than normal
C．more cases of malnutrition
D．cases of waterborne diseases
小題3:According to the passage, climate change has both positive and negative effects on ______.
A．food supplies and buildings
B．freshwater resources and homes
C．human health and food supplies
D．human health and homes
小題4:The passage is mainly meant to tell us _______.
A．how global warming leads to changes in the climate
B．how climate change affects people worldwide
C．why climate change affects our crop growth
D．why climate change contributes to all bad results

小題1:D
小題2:A
小題3:C
小題4:B

試題分析：這篇文章主要是告訴讀者全球氣溫變暖對世界范圍的人的影響，氣溫變暖對食品產(chǎn)量和人的健康有負(fù)面和正面的影響。
小題1:細(xì)節(jié)題：從第四段的句子； A global temperature rise of 1–2 °C is expected to increase food production in some regions, particularly mid-latitude areas. 可知全球氣溫上升1-2度，中緯地區(qū)會有積極的影響，選D
小題2:猜詞題：從第六段的句子: a reduced risk of cold-related illnesses可知“hypothermia”是由于溫度低于正常導(dǎo)致的嚴(yán)重的醫(yī)學(xué)狀況，選A
小題3:細(xì)節(jié)題：從第四段的句子：While there may be benefits in some regions, overall climate change is likely to have a negative impact on global food supplies.和第六段的句子:Climate change could lead to a variety of health impacts – both positive and negative.可知?dú)鉁刈兣瘜κ称樊a(chǎn)量和人的健康有負(fù)面和正面的影響，選C
小題4:主旨題：從全文和最后一段的句子：The consequences of climate change will have an impact on people around the world.可知這篇文章主要是告訴讀者全球氣溫變暖對世界范圍的人的影響，選B
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：閱讀理解

The dark chocolate is one of the favourite food choices by many.The taste is simply irresistible，the smell is tempting and the feel of every bite is surely what you are craving for.
Aside from the taste，you simply cannot resist it because it has a lot of benefits when it comes to your health.Our health is our priority(首要事情) when it comes to the choice of our foods.If you worry that the chocolate is bad for your health then here is a list of the effects of dark chocolate to health especially when taken with the right amount every day.
First of all，it contains a component called flavonoid(類黃酮) which acts as an antioxidant(抗氧化劑)．The_antioxidants_fight_the_common_signs_of_aging.The antioxidants are also good for the heart.Studies have shown that people who ate foods rich in antioxidants have low incidence of heart diseases.
Aside from the anti­aging and healthy heart benefits，the dark chocolate can also lower blood pressure and reduce bad cholesterol(膽固醇) to as high as 10%.Lowering of blood pressure in patients of high blood level is good because it will lower the risks of stroke and certain health crisis.Low levels of blood cholesterol are also good for the heart and take away the risk of blood vessels which may harden for too much cholesterol in them.
Lastly，do you know the feeling of being overjoyed after jogging？This feeling is like extreme happiness.Dark chocolates will give you the feeling of pleasure and happiness.If you are feeling that the world has turned against you，then a chocolate can be a mood lifter.It is an antidepressant.Usually when we feel so bad，we would crave to eat more food.If you are looking for something to eat during your bad moments try to take a bite from a dark chocolate and feel good somehow after it.
These are commonly the effects of chocolates to health.It can benefit you especially if taken in moderate amounts.Approximately,100 grams of chocolate or less a day is already enough according to studies.If you have taken too much，try to lessen on your other meals for the day.It is all about nutrition and taking the right amount of food in order to get the health benefits that it can provide to you.
小題1:According to the text，________.
A．many people like the dark chocolate for its taste
B．the dark chocolate is the best choice for most people
C．nobody could resist the tempting smell of the dark chocolate
D．only a bite of the dark chocolate will make you addicted to it
小題2:The underlined sentence in Paragraph 3 suggests that dark chocolates ________.
A．a(chǎn)re the best choices for the aged
B．a(chǎn)re usually used as an antioxidant
C．can keep you stay young forever
D．can make you look younger than your real age
小題3:What can we learn from Paragraph 5?
A．If you are depressed dark chocolates will make you delighted.
B．If you are feeling bad you will crave to eat dark chocolates.
C．If you eat some dark chocolates you will get overjoyed.
D．If you are hungry the best food is dark chocolates.
小題4:What is the purpose of the author writing this text?
A．To introduce the black chocolate to patients with high blood level.
B．To encourage us to eat as many chocolates as we can.
C．To introduce the black chocolate and its health effects.
D．To increase the sale of the black chocolate.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Since we are social beings, the quality of our lives depends in large measure on our interpersonal relationships. One strength of the human conditions is our possibility to give and receive support from one another under stressful(有壓力的) conditions. Social support makes up of the exchange of resources among people based on their interpersonal ties. Those of us with strong support systems appear better able to deal with major life changes and daily problems. People with strong social ties live longer and have better health than those without such ties. Studies over types of illnesses, from depression to heart disease, show that the presence of social support helps people defend themselves against illness, and the absence of such support makes poor health more likely.
Social support cushions stress in a number of ways. First, friends, relatives and co-workers may let us know that they value us. Our self-respect is strengthened when we feel accepted by others in spite of our faults and difficulties. Second, other people often provide us with informational support. They help us to define and understand our problems and find solutions to them. Third, we typically find social companionship supportive. Taking part in free-time activities with others helps us to meet our social needs while at the same time distracting(轉(zhuǎn)移注意力) us from our worries and troubles. Finally, other people may give us instrumental support — money aid, material resources, and needed services — that reduces stress by helping us resolve and deal with our problems.
小題1:Interpersonal relationships are important because they can _______.
A．make people live more easily
B．smooth away daily problems
C．deal with life changes
D．cure types of illnesses
小題2:The researches show that people's physical and mental health _______.
A．lies in the social medical care systems which support them
B．has much to do with the amount of support they get from others
C．depends on their ability to deal with daily worries and troubles
D．is related to their courage for dealing with major life changes
小題3:Which of the following is closest in meaning to the underlined word “cushions” ?
A．takes place ofB．makes up of
C．lessens the effect ofD．gets rid of
小題4:Helping a sick neighbor with some repair work in spare time is an example of _______.
A．instrumental supportB．informational support
C．social companionshipD．the strengthening of self-respect
小題5:What is the subject discussed in the text?
A．Interpersonal relationships.B．Kinds of social support.
C．Ways to deal with stress.D．Effects of stressful conditions.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Depressed people can be very difficult to be around，and yet they need more than the usual amount of support and understanding from their friends and family.
The anger and lack of concern that a depressed person may have for people close to him or her can be very disturbing to someone who's trying to help.At such times，the sincerity of a friend or a family member is questioned when the depressed person doesn't feel worthy of someone's friendship.Withdrawal from others can make it nearly impossible to encourage a depressed person to enter into activities that may help pull him or her out of the depression.
It is frequently difficult for a depressed person to carry on a conversation.Attempts to help may be met with defensiveness and verbal attacks.While being supportive and understanding，the friend of a family member must be careful not to do too many things for the depressed person.There is a very thin line between being supportive and being overly protective.Too much“doing for” can be a disservice(幫倒忙)．
You can best help a friend or relative who is depressed by considering the following points：
◆Do not moralize.Don't pressure him or her to “put on a happy face，” or to “snap out of it.” Often the person will feel even worse after hearing such words.
◆When you are alone with your depressed friend，you might say something like，“I've noticed lately that you seem down.I care about you and would like to listen to what you're thinking about.” Then be a good listener.
◆Don't say，“I know exactly how you feel.” You probably don't.But if you've had similar experiences，sharing those may help.Say things like，“This happened to me.It might help you.” Or “I know some of what you must be feeling.”
◆Urge him or her to get professional help if necessary.Offer to accompany your friend on the first visit if it will be easier for the person.
小題1:．The above passage is mainly intended for ________.
A．a(chǎn) doctor who works with a depressed person
B．a(chǎn) depressed person
C．one who lives with a depressed person
D．a(chǎn)n expert who gives advice to a depressed person
小題2:Too much “doing for” can ________.
A．cause more severe depression
B．give the depressed person courage
C．result in defensiveness from the depressed person
D．be of no help to the depressed person
小題3:What are you advised to say to a depressed person?
A．Try to look happy and you'll be better.
B．I know exactly how you feel.
C．I had a similar experience.And it might help you.
D．Cheer up and get rid of your depression.
小題4:We can infer from the second paragraph that a depressed person ________.
A．is willing to appreciate the sincerity of a friend or a family member
B．has a sense of pride of his own
C．may do something unreasonable to your friendship
D．is likely to doubt the purpose of a friend or family member

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

What do former American president Bill Clinton and rock musician Pete Townshend have in common.'? Both men have hearing damage from exposure(暴露，接觸) to loud music, and both now wear hearing aids（助聽器） as a result. As a teenager, Clinton played saxophone in a band. Townshend, who has the more severe hearing loss, was a guitarist for a band called the Who. He is one of the first rock musicians to call the public's attention to the problem of hearing loss from exposure to loud music.
Temporary（暫時） hearing loss can happen after only 15 minutes of listening to loud music. One early warning sign is when your ears begin to feel warm while you listen to music at a rock concert or through headphones. One later is that an unusual sound or a ringing is sometimes produced in your head after the concert.
"What happens is that the hair cells in the inner ear are damaged, but they're not dead," says physician and ear specialist Dr. Sam Levine. According to Dr. Levine, if you avoid further exposure to loud noise, it's possible to recondition the cells（細(xì)胞） somewhat. However, he adds, "Eventually, over a long period of time, hair cells are permanently damaged." And this is no small problem.
What sound level is dangerous? According to Dr. Levine, regular exposure to noise above 85 decibels (分貝) is considered dangerous. The chart below offers a comparison of decibel levels to certain sounds. Here's another measurement you can use. If you're at a rock concert and the music is so loud that you have to shout to make yourself heard, you' re at risk for hearing loss. That's when wearing protective devices such as earplugs becomes critical.
The facts are pretty frightening. But are rock bands turning down the volume.'? Most aren't. "Rock music is supposed to be loud," says drummer Andrew Sather."I wouldn't have it any other way. And neither would the real fans of rock. "
Continued exposure to loud music and the failure to wear earplugs can lead to deafness, according to Dr. Levine. He states, "There's no cure for hearing loss. Your ears are trying to tell you something. That ringing is the scream of your hair cells dying. Each time that happens, more and more damage is done. "
Levels of Common Noises
Normal conversation                            50 — 65 dB
Food blender                                  88 dB
Jet plane flying above a person standing outside      103 dB
Rock band during a concert                      110 — 140 dB
小題1:From Paragraph 1, we can learn that ___________                  .
A．loud music is a major cause of hearing loss
B．famous people may have hearing problems
C．teenagers should stay away from school bands
D．the problem of hearing damage is widely known
小題2:In Paragraph 3, the underlined word "recondition" means__________ .
A．not to be seenB．to fill with sound
C．to become larger in sizeD．to make good again
小題3:The purpose of the chart at the end of the article is to show__________   .
A．a(chǎn) list of harmful sounds
B．the effect of rock concerts
C．the noise levels of sounds
D．relationship between daily activities and hearing loss
小題4:Which of the following statements will Dr. Sam Levine probably agree?
A．When your ears feel warm, your hair cells are dead.
B．Drummer Andrew Sather gives good advice.
C．Many are at the risk of losing hearing.
D．Doctors know how to deal with hearing loss.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

American children are not the only couch potatoes with nearly one third of children globally spending 3 hours a day or more watching TV or on computers, according to the study of over 70,000 teens in 34 nations.
From Argentina to Zambia, Regina Guthold of the World Health Organization in Geneva and her colleagues found most children were not getting enough exercise and that it made no difference whether they live in a rich or a poor country. “With regards to physical levels, we didn’t find much of a difference between rich and poor countries,” Guthold said, “Growing up in a poor country doesn’t necessarily mean kids get more physical activities.”
The researchers defined adequate physical activity as at least an hour of exercise outdoors for at least 5 days a week. Children spending 3 or more hours a day watching TV, playing computer games or chatting with friends were classified as sedentary.
The researchers found only a quarter of the boys and 15 percent of the girls were getting enough exercise by these definitions. A quarter of boys and nearly 30% of girls were sedentary and didn’t get enough exercise with girls less active than boys in every country aside from Zambia.
Girls from India were the most active with 37 percent meeting exercise recommendation, while girls from Egypt were the least active with 4 percent getting enough exercise. Children in Myanmar were the least sedentary while the most sedentary nations were St .Lucia and the Cayman Islands.
People show deep concern for kids’ lack of physical activity in various nations. Why do they have a low level of physical activity? Guthold speculated（認(rèn)為）that urbanization could be a factor as well as easy access to cars and TVs.
小題1:If you are sedentary, you ____________.   
A．a(chǎn)re a diligent student spending much time doing homework
B．have at least an hour of exercise outdoors 5 days a week.
C．like watching TV and playing computer games
D．spend longer hours sitting or lying without moving
小題2:Which of the following statements is true as to Guthold’s finding?
A．Most children around the world don’t meet the exercise recommendation.
B．Girls in every country are no more active than boys.
C．Children in rich countries relatively get less physical activity.
D．Only 4% of the girls from Egypt are not active in exercise.
小題3:All the following statements are wrong except _______.
A．Children in poor countries get more physical activities.
B．Girls in Egypt are more active than those in India.
C．Couch potatoes are those children addicted to snacks.
D．Children in Myanmar are less sedentary than those in St .Lucia.
小題4:What would the writer be most likely to discuss in detail in the paragraph that follows?
A．The suitable amount of physical activities for students.
B．Some of the factors for the popularity of cars and TVs among the kids.
C．The reasons behind the lack of physical activities.
D．The ways to make the most of cars and TVs.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Below are some smart ways to stay healthy suggested by some American experts.
Drink More Coffee
When was the last time you heard a doctor use the word miracle? Well, wake up and smell the coffee: “It’s amazing,” says liver specialist Sanjiv Chopra, MD, professor of medicine at Harvard Medical School. “Coffee is truly a lifesaving miracle drug.”
Though he says it’s still a “scientific mystery” how a simple cup of coffee works its wonders in the body, large epidemiological studies have repeatedly proved its astonishing benefits.
“Drink it black, or at most put a little skim milk in it” to minimize calories, Dr. Chopra recommends. He drinks at least four cups a day himself, though most people should limit themselves to two. And no, he jokes, “I’m not sponsored by Starbucks.”
Take a Walk for Your Memory
Aerobic (有氧運(yùn)動的) exercise is good for your body, great for your mind, according to the latest research from brain-fitness pioneer Arthur Kramer. Every year, an area called the hippocampus, which is key to memory, shrinks by about 1 to 2 percent, increasing the risk of dementia (腦衰) as the years roll by. However, Kramer’s new investigations reveal that the hippocampi of adults who walked briskly for about 45 minutes three times a week grew by about 2 percent over the course of a year, preventing age-related shrinking.
It’s never too late to start exercising, Kramer says; volunteers in his research were between 55 and 80 years old and hadn’t exercised at all. And it doesn’t need to be backbreaking. “Anything that raises your heart rate seems to work,” he says. “Walking is fine. Just find something you like and do it.”
Early to Bed, Early to Eat
“Being a night owl might increase your waistline,” says sleep expert Michael Breus, PhD. People who stay up late and sleep late tend to eat more fast food and consume more of their calories after 8 p.m. than do normal sleepers.
“One of the easiest things that anyone on a diet can do to improve her results is go to bed and wake up at the same times every day,” Breus says. “This way, your body knows when to sleep and is much more efficient. Organize your eating, too, by trying to eat meals at the same times every day. Avoid eating after 8 p.m., and don’t miss morning meals by sleeping in.”
Use the 20-Second Rule
What’s the difference between having a goal and actually accomplishing it? Just 20 seconds, says positive-psychology specialist Shawn Achor. Researchers have learned that if we can cut 20 seconds off the startup time required for a task, we’re much more likely to follow through. So, for example, if you want to work out in the morning, place your shoes and exercise clothes next to your bed the night before. If you want to praise people more, put thank-you notes and a pen on your desk.
Imagine the Worst to Feel Better
Don’t count your blessings; subtract (扣除) them. “Consciously spend a few minutes imagining what your life would be like without the good things,” says Timothy Wilson, a psychologist at the University of Virginia. You’ll experience stronger feelings of love, gratitude, and happiness when you think about what life would be like without the people and things you love. “And they’ll seem surprising and special again,” he adds.
小題1: According to Sanjiv Chopra, most people should not drink more than ______ cups of coffee a day.
A．twoB．threeC．fourD．six
小題2:Which of the following may help people on a diet to improve their results?
A．Raising their heart rate.B．Taking a walk for their memory.
C．Eating at fixed times.D．Sleeping in every morning.
小題3:According to Shawn Achor, if people place their shoes and exercise clothes next to their bed at bedtime, they’re more likely to ______ the next morning.
A．do exerciseB．set a goal
C．cut 20 seconds offD．sleep 20 minutes more
小題4: Why should people spend a little time imagining their life without good things?
A．To experience surprise.B．To feel better.
C．To consider their own blessings.D．To prepare for the worst.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Good health is the most valuable thing a person can have but one cannot take good health for granted .It is important to remember that the body needs proper care in order to be healthy. There are three things that a person can do to help stay in good shape, eat right food, get enough sleep, and exercise regularly.
Proper nutrition  is  important for good  health.  Your body cannot work well unless  it receives the proper kind“fuel"．Don't eat too much food with lots of sugar and fat, Eat plenty of foods high in protein, like meat fish eggs and nuts. Vegetables and fruits are very important because they provide necessary vitamins and minerals.  However  don't overeat It is not helpful to be overweight
Getting the proper amount of sleep is also important.  If you don't get enough sleep, you feel tired and easily get angry. You have no energy. Over a long period of time a little amount of sleep may even result In a change of personality（人的個性)．Be sure to allow yourself from seven to nine hours of sleep each ,If you do, your body will feel strong and refreshed ,and  your mind will be sharp．
Finally, get plenty of exercise Exercise firms the body, strengthens the muscles, and prevents you from gaining  weight  It also improves your heart and lungs. If you follow a regular exercise program, you will probably increase your life-span（壽命)．An kind of exercise is good. Most sports excellent for keeping the body in good shapes: basketball, swimming, bicycling, running and so on. Sports are not only good for your body, but they are enjoyable and interesting, too.
If everybody were to eat the right foods, get plenty of sleep and exercise regularly, the world would be a happier and healthier place. We would all live to be much older and wiser.
小題1:In order to keep good health______.
A．we should eat a lot of sweets
B．one needs a large amount of fat
C．we must try to sleep now and then
D．people should eat according to the foods nutrition
小題2:Eating more and sleeping less_______.
A． can keep healthyB． is no good for you
C． gets you more energyD． will keep your personality
小題3:The writer explains ________in the 4th paragraph.
A． how to eatB． what to eat
C． how to keep healthyD． the importance of doing exercise
小題4:The title for the article should be“_______".
A． Eating and ExercisingB． How Vitamins Work in Man's Body
C． Staying HealthyD． Sleeping Well

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Why play games? Because they are fun, and a lot more besides. Following the rules…planning your next move...acting as a team member…these are all “game” ideas that you will come across throughout your life.
Think about some of the games you played as a young child, such as rope-jumping and hide-and-seek. Such games are entertaining and fun. But perhaps more importantly, they translate life into exciting dramas that teach children some of the basic rules they will be expected to follow the rest of their lives, such as taking turns and cooperating (合作) .
Many children’s games have a practical side. Children around the world play games that prepare them for work they will do as grown-ups. For instance, some Saudi Arabian children play a game called bones. Which sharpens the hand-eye coordination（協(xié)調(diào)）needed in hunting.
Many sports encourage national or local pride. The most famous games of all, the Olympic Games, bring athletes from around the world together to take part in friendly competition. People who watch the event wave flags, knowing that a gold medal is a win for an entire country, not just the athlete who earned it. For countries experiencing natural disasters or war, an Olympic win can mean so much.
Sports are also an event that unites people. Soccer is the most popular sport in the world. People on all continents play it—some for fun and some for a living. Nicolette Iribarne, a Californian soccer player, has discovered a way to give people hope through soccer. He created a foundation(基金會) to provide poor children with not only soccer balls but also a promising future.
Next time you play your favorite game or sport, think about why you enjoy it, what skills are needed, and whether these skills will help you in other aspects of your life.
小題1:Through playing hide-and-seek, children are expected to learn to ________.
A．be a team leaderB．obey the basic rules
C．a(chǎn)ct as a grown-upD．predict possible danger
小題2:The underlined part in Paragraph 2 most probably means that games can________.
A．describe life in an exciting way
B．turn real-life experiences into a play
C．make learning life skills more interesting
D．change people’s views of sporting events
小題3:According to the passage, why is winning Olympic medals so encouraging?
A．It makes people have a deep love for the country.
B．It proves the exceptional skills of the winners.
C．It helps the country out of natural disasters.
D．It earns the winners fame and fortune.
小題4:Iribarne’s goal of forming the foundation is to _______.
A．bring fun to poor kids
B．provide soccer balls for children
C．give poor kids a chance for a better life
D．a(chǎn)ppeal to soccer players to help poor kids
小題5:What can be learned from the passage?
A．Games benefit people all their lives.
B．Sports can get all athletes together.
C．People are advised to play games for fun.
D．Sports increase a country’s competitiveness.

查看答案和解析>>

同步練習(xí)冊答案