20.Organic food,once considered something that only health fanatics desired,is now a regular feature at most supermarkets.And that has created a bit of a dilemma.On the one hand,you have a conventionally grown apple.On the other,you have one that's organic.Both apples are firm,shiny and red.Both provide vitamins and fiber,and both are free of fat,sodium and cholesterol.
Conventionally grown food generally costs less,but is organic food a better choice?The advantages claimed for such foods over conventionally grown and sold food products are now being debated on a large scale.Supporters of organic foods-a term whose meaning varies greatly-are frequently telling the world that such products are safer and more nutritious than others.
The growing interest of consumers in the safety and nutritional quality of daily foods is a welcome development.However,much of this interest has been aroused by sweeping claims that the conventional food supply is unsafe or inadequate in meeting nutritional needs.
Almost daily,the public is surrounded by claims for"no-aging"diets,new vitamins and other wonder foods.There are numerous unsubstantiated(沒(méi)證實(shí)的) reports that natural vitamins are superior to man-made ones,that fertilized eggs are nutritionally superior to unfertilized eggs,that untreated grains are better than those treated with insect spray and the like.
Although most of these claims are not supported by scientific evidence,large amounts of written material about the benefits of organic foods makes it difficult for people to separate fact from fiction.As a result,claims that eating a diet consisting of organically grown foods prevents or cures disease or provides other benefits to health have become widely advertised and form the basis for people's opinion.
One thing that most organically grown food products seem to have in common is that they cost more than conventionally grown foods.But in many cases consumers are misled if they believe organic foods can maintain health and provide better nutritional quality than conventionally grown foods.So there is real cause for concern if consumers,particularly those with limited incomes,distrust the conventional food supply and buy only expensive organic foods instead.
41.According to Paragraph 2,which of the following statements about organic food is true?B
A.It hasn't been used until recent years
B.It has no agreed definition.
C.It is popular among producers
D.It is accepted by most nutritionists.
42.In Paragraph 4,treated grains are examples ofC.
A.healthier food                         
B.organic food             
C.conventionally grown food               
D.expensive food           
43.It can be inferred from the passage thatD.
A.most doctors believe organic foods prevent disease or provide other benefits to health
B.organic foods are actually less nutritious than conventionally grown foods
C.people cannot separate fact from fiction because of the TV advertisements
D.organic foods cost more but are not necessarily better than conventionally grown foods
44.According to the passage,many consumers are attracted by organic foods because theyC
A.want to try something new               
B.have carefully researched the products
C.value food safety and nutrition             
D.expect to save some money
45.What is the author's attitude towards the claims of organic foods?A
A.Doubtful.B.Enthusiastic.C.Supportive.D.Uninterested.

分析 本文屬于說(shuō)明文閱讀,作者通過(guò)這篇文章主要向我們描述了有機(jī)食品越來(lái)越受很多消費(fèi)者的歡迎.但有機(jī)食品真的比普通食品很好、更安全這還有待證實(shí).

解答 41.B.細(xì)節(jié)理解題.根據(jù)第二段的內(nèi)容"Supporters of organic foods-a term whose meaning varies greatly-are frequently telling the world that such products are safer and more nutritious than others"可知對(duì)于有機(jī)食品沒(méi)有統(tǒng)一的界定.故選B項(xiàng).
42.C.細(xì)節(jié)理解題.根據(jù)t第四段That untreated grains are better than those treated with insect spray and the like.用藥噴灑的莊稼是傳統(tǒng)的糧食作物.故C正確.
43.D.推理判斷題.根據(jù)第二段第一句"Conventionally grown food generally costs less…"及最后一段第一句"One thing that most organically grown food products seem to have in common is that they cost more than con?ventionally grown food…"可以推知有機(jī)食品價(jià)格高,但不一定比傳統(tǒng)的食物更好.故選D項(xiàng).
44.C.細(xì)節(jié)理解題.根據(jù)最后一段中"But in many cases consumers are misled if they believe organic food can maintain health and provide better nutritional quality than conventionally grown food."可知,消費(fèi)者被有機(jī)食品吸引是因?yàn)樗麄兲粗厥澄锏陌踩c營(yíng)養(yǎng).故選C項(xiàng).
45.A.推理判斷題.根據(jù)最后一段"But in many cases consumers are misled if they believe organic foods can maintain health and provide better nutritional quality than conventionally grown foods"可以看出作者對(duì)有機(jī)食品是持懷疑態(tài)度的.故選A項(xiàng).

點(diǎn)評(píng) 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力,做細(xì)節(jié)理解題時(shí)一定要找到文章中的原句,和題干進(jìn)行比較,再做出正確的選擇.在做推理判斷題不要以個(gè)人的主觀想象代替文章的事實(shí),要根據(jù)文章事實(shí)進(jìn)行合乎邏輯的推理判斷.

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中英語(yǔ) 來(lái)源: 題型:選擇題

7.With a lot of difficult problems _______,the newly-elected president is having a hard time.(  )
A.solvedB.solvingC.to solveD.being solved

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解

11.San Diego Summer
The summer after my second year in high school,I finally had the opportunity to live with my super-cool sister in San Diego for three weeks.It was going to be great!I would lie on the beach in the sun.Perhaps I would surf a little or ride my bike around Coronado Island.
Meanwhile,I would spend every morning,Monday through Friday,teaching YMCA (Young Men's Christian Association) kids how to play tennis…for FREE.Since college wasn't too far off,and since I had practically zero hours of community service,my volunteering at the YMCA was smart.I like tennis and I even kind of like little kids.Anyway,life was going to be amazing for those three weeks.
On my first day at the YMCA,I was shocked by the smallness of the children.The kids could barely grasp a racket(球拍),let alone swing one.This is when it occurred to me how potentially terrible the situation was-a group of thirty small children with rackets in hand and only four coaches.The odds were definitely against us.Luckily,the kids did not have blood on their minds,and they were relatively obedient and cooperative.
It soon became painfully obvious that I was the only"coach"actually coaching.Rather ironic when one considered that I was the only one of the four NOT being paid.I must admit,however,that despite all of my efforts these children were not getting much.I had to keep telling myself that while I couldn't enjoy the fruits of my labor at the moment,I would be reveling in the benefits once college application time came.Thus,I soldiered on.
As I returned home the day before the opening of school,I had complete peace of mind.Although I did not spend every day at the beach as I had initially hoped to do,I did accomplish several things and I felt as if I were a better person because of my three weeks in San Diego.

56.Before going to San Diego the author was full ofA.
A.expectation     B.confidence       C.doubt       D.curiosity
57.The author taught YMCA kids to play tennis because sheB.
A.loved small children and was active as a volunteer
B.must do community service to be admitted to college
C.wanted to earn some money to pay for her college fees
D.would like to do something for others as a sincere Christian
58.The underlined words"I soldiered on"reflect the author'sD.
A.desire to join the army
B.love for teaching tennis
C.control for young learner
D.determination not to give up
59.According to the last paragraph,we can predict that the author willD in the future.
A.become a teacher
B.move to the beach
C.play tennis professionally
D.help others more willingly.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解

8.A study now lends support to the idea that meal-time distractions (分散注意) can mask the clues that we really have eaten quite enough.Moreover,it finds,the caloric fallout of not paying attention to what we're eating doesn't necessarily end when a meal is over.
Rose Cooper from England,and her colleagues gathered 22men and an equal number of women for an experiment.Each person dined alone,continuously receiving nine small shares of food items.These ranged from cheese twists and potato chips to carrots,cherry tomatoes and sandwiches or sausage rolls.
Because the goal was to test the potential impacts of distraction on fullness,the researchers randomly assigned half of the participants to eat in front of a computer-and to gain as many wins as possible at the"card"game.Everyone else was told to focus on the sensory qualities of their meal.
According to their instructions,the participants ate all of the food given to them.Yet people who played a computer game during lunch found their meal less filling than the mindful eaters had.Game players also swallow down twice as many cookies,almost an hour later,when they were allowed all the dessert they wanted (in the name of a taste test).The British scientists present their findings in the February American Journal of Clinical Nutrition.
The real question is why distracted eating should impact snacking.It appears,the scientists say,that memory plays some tricky role in how we register what we eat and the degree to which it satisfies.
Interestingly,eight years ago,Britta Barkeling of Huddinge University in Stockholm and her colleagues reported somewhat related findings.Their 18overweight subjects had no choice other than to get rid of everything but lunch,on one day-because they were blindfolded.Compared to a day when they could view what they were dining on,these people consumed only three quarters as many calories.Yet even hours afterward,they reported being no less full than on the day they had been able to see their plates.
Of course dining in the dark isn't practical.And sometimes what we eat doesn't really invite our absolute attention.But there is certainly a growing mountain of data indicating that mindless eating is a waste of resources,a risk to our waistlines-and a costly threat to health.

63.Rose Cooper and her colleagues did the experiment in order toC.
A.show that all the people enjoy snacks
B.prove that playing computer games is harmful while dining
C.find possible effects of distraction on fullness
D.test the impacts of eating snacks on different people
64.Which is the most effective way to concentrate on your food when dining?B
A.Viewing your food.      B.Blindfolding your eyes.
C.Playing computer games. D.Eating by oneself.
65.The reason why distracted eating influences snacking may be thatB.
A.you eat less in that case           B.you are cheated by your memory
C.you have consumed more calories     D.you digest what you've eaten faster
66.We can conclude from the passage thatA.
A.distracted eating may damage your health
B.eating snacks will make you feel full
C.Britta became famous because of the experiment
D.playing is more important than what we eat.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解

15.Since the beginning of the year,smog has covered parts of North China.In January,Beijing saw only five days without smog.The rising PM 2.5readings terrified many people,and some health experts said that whenever the smog gets serious,hospitals receive more patients suffering acute respiratory(呼吸系統(tǒng))and heart diseases.
Later,news of polluted underground water in some provinces scared people who wondered whether the water they drink is safe.
So the need to emphasize environmental protection while developing the economy is heard everywhere.
Smog especially is a common concern.Like a popular online post said,air may be the only thing that is equal for everyone,despite your income or vocation.People with higher incomes are able to drink only bottled spring water and eat only organic food by paying higher prices,but they breathe the same air as everyone else.
At a meeting on Monday,many Representatives have expressed their concerns about the air quality,too.One talked about his experience in Beijing."After taking a taxi from the capital airport to my hotel,which took about an hour,I washed my nose and found the inside of my nose was black.We should ask ourselves this question:Why do we want to develop?It's for living a better life.Dirty air is definitely not a better life,"he said.
China needs to develop its economy and invest(投資) in high-tech.Every Chinese wants a strong country.But without blue sky,clean water and safe food,the achievements in the economy will become meaningless.Space technologies are not to be developed for building a base on Mars so that one day all human beings can migrate to the red planet because  they have destroyed Earth.
What the public wants is a strong and beautiful China.Former president Hu Jintao spoke at the 18th Party Congress last November saying that great efforts must be made to promote ecological progress and build a beautiful China.The words have shown the central government's resolution to address the environment issue.

36.The effect of smog doesn't include.C
A.the rising of PM 2.5readings
B.more people suffering diseases
C.the increase of people's income
D.patients increased in hospital
37.Why smog has become a common concern?B
A.Because people have to pay higher prices.
B.Because nobody can avoid it.
C.Because we have to develop industry.
D.Because a popular online-post discussed it.
38.The underlined word"they"in paragraph 6refers to.A
A.human beings         B.other plants
C.space technologies   D.industrial development
39.From the last two paragraphs we can infer that.D
A.high-tech can completely solve the problem of pollution
B.space technologies should be developed in a large scale
C.we can move to the Mars after the earth has been destroyed
D.we must protect the environment while developing economy.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解

5.A special education teacher and former police officer was honored by President Barack Obama at the White House as the 2009 National Teacher of the Year for his innovative(創(chuàng)新的) approach,community focus,and teamwork with other teachers."In a global economy where the greatest job qualification isn't what you can do,but what you know,our teachers are the key to our nation's success,"President Obama stated.
    Mullen,a ninth-through twelfth-grade special education teacher at the ARCH School in Connecticut,is the 59th National Teacher of the Year.Mullen's goal is to provide passion,professionalism(職業(yè)特質(zhì)),and perseverance as an educator."A teacher can receive no greater reward than the knowledge that he or she helped recover a lost student,"Mullen remarked.He will travel for one year as a full-time national and international spokesperson for education beginning June1,2009.
    The National Teacher of the Year Program focuses public attention on teaching excellence and is the oldest and most famous national honors program for teachers.‘ACEI is a proud participant in the selection process for the National Teacher of the Year,and we are pleased to see Anthony Mullen selected.Mr.Mullen is a dedicated individual who possesses a wealth of talents and skills as a teacher.His devotion to young people,however,reaches beyond the call of duty.Mr.Mullen extends himself to adviser and guides children who need to know that they are not forgotten and that they,too,are unique and special,"stated ACEI Executive Director Diane Whitehead.
     ACEI is one of 15 national education organizations that select the National Teacher of the Year from among the state teachers of the year,including those representing the District of Columbia,the Department of Defense Education Activity,and five U.S.extra state departments.
45.What is the passage mainly about?C
A.A White House ceremony.
B.An innovative teaching approach.
C.The 2009 National Teacher of the Year.
D.The national education organizations.
46.We can learn from the first paragraph Obama stressesA.
A.teachers'role                      
B.community lives
C.teachers'teamwork                 
D.innovative approach
47.According to Mullen,his success as an educator lies in.B
A.being a full-time national and international spokesperson
B.providing passion,perseverance and professionalism
C.helping those who can't find their way home
D.helping the students achieve high scores
48.It can be inferred from the passage thatD.
A.the National Teacher of the Year Program hasn't been well-known
B.ACEI is the only organization in charge of selecting excellent teachers
C.Mullen is devoted to teaching the students for the call of duty
D.Mullen's success may be due to his previous work experience.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解

12.Ask someone what they have done to help the environment recently and they will almost certainly mention recycling.Recycling in the home is very important of course.However,being forced to recycle often means we already have more material than we need.We are dealing with the results of that over-consumption in the greenest way possible,but it would be far better if we did not need to bring so much material home in the first place.The total amount of packaging increased by 12% between 1999 and 2005.It now makes up a third of a typical household's waste in the UK.In many supermarkets nowadays food items are packaged twice with plastic and cardboard.Too much packaging is doing serious damage to the environment.The UK,for example,is running out of it for carrying this unnecessary waste.If such packaging is burnt,it gives off greenhouse gases which go on to cause the greenhouse effect.Recycling helps,but the process itself uses energy.The solution is not to produce such items in the first place.Food waste is a serious problem,too.Too many supermarkets encourage customers to buy more than they need.However,a few of them are coming round to the idea that this cannot continue,encouraging customers to reuse their plastic bags,for example.But this is not just about supermarkets.It is about all of us.We have learned to associate packaging with quality.We have learned to think that something unpackaged is of poor quality.This is especially true of food.But is also applies to a wide range of consumer products,which often have far more packaging than necessary.
There are signs of hope.As more of us recycle,we are beginning to realize just how much unnecessary material are collecting.We need to face the wastefulness of our consumer culture,but we have a mountain to climb.
61.What does the underlined phrase"over-consumption"refer to?D
A.Using too much packaging.
B.Recycling too many wastes.
C.Making more products than necessary.
D.Having more material than is needed.
62.The author uses figures in Paragraph 2 to showD.
 A.the tendency of cutting household waste  
B.the increase of packaging recycling
C.the rapid growth of super markets  
D.the fact of packaging overuse
63.According to the text,recyclingA.
A.helps control the greenhouse effect   
B.means burning packaging for energy   
C.is the solution to gas shortage   
D.leads to a waste of land
64.What can be inferred from Paragraph 4?C
A.Unpackaged products are of bad quality.
B.Supermarkets care more about packaging.
C.It is improper to judge quality by packaging.
D.Other products are better packaged than food.
65.What can we learn from the last paragraph?A
A.Fighting wastefulness is difficult.
B.Needless material is mostly recycled.
C.People like collecting recyclable waste.
D.The author is proud of their consumer culture.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解

9.Wild animals seem to have escaped the Indian Ocean tsunami (海嘯),adding weight to ideas they possess a"sixth sense"for disasters,experts said on Thursday.Sri Lanka wildlife officials have said the giant waves that killed over 24,000people along the Indian Ocean Island's coast seemingly missed wild beasts,with no dead animals found.
"No elephants are dead,not even a dead hare or rabbit.I think animals can sense disaster.They have a sixth sense.They know when things are happening,"H.D.Ratnayake,deputy director of Sri Lanka's Wildlife Department said on Wednesday.
The waves washed floodwaters up to 3km (2miles) inland at Yala National Park in the southeast,Sri Lanka's biggest wildlife reserve (自然保護(hù)區(qū)) and home to hundreds of wild elephants."There has been a lot of evidence about dogs barking or birds migrating before volcanic eruptions or earthquakes.But it has not been proved,"said Matthew van Lierop,an animal behaviour specialist at Johannesburg Zoo."There have been no specific studies because you can't really test it in a lab or field setting,"he said.
Other authorities agreed with this conclusion."Wildlife seems to be able to pick up certain phenomenon,especially birds.There are many reports of birds detecting coming disasters,"said Clive Walker,who has written several books on African wildlife.
Animals certainly rely on the known senses such as smell or hearing to avoid danger such as predators(食肉動(dòng)物).The idea of an animal"sixth sense"is a lasting one that the evidence on Sri Lanka's damaged coast is likely to add to.

60.This passage is mainly aboutB.
A.the damage that was caused in the Indian Ocean tsunami
B.why animals can save themselves from natural disasters
C.how to protect the wildlife when disaster happens
D.the different opinions about animals'natural power
61.Which of the following is true according to the passage?C
A.It has been proved that animals have a sixth sense.
B.Research has been made on the special movements of animals before disasters.
C.It's generally considered that animals can sense the coming of disasters.
D.It can be tested that animals have the known sense to escape from the disasters.
62.What does the term"sixth sense"in the passage mean?C
A.It is the natural ability of animals that can't save them from danger.
B.It is the animal's imagination in the brain.
C.It is some hidden power to say in advance that something will happen.
D.It is a kind of sense that is the same as smell or hearing.
63.Which section does the passage most probably appear in a newspaper?B
A.Entertainment.      B.Discovery.
C.Future.             D.Culture.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源: 題型:填空題

10.Every person has a great deal of love to give.(36)G Here is a general guide to loving.
Say it.When you say the words"I love you",make sure you really mean it and are willing to do anything for that special person.
(37)B If you love someone,you should understand how they feel,where they come from,and who they are.Realize how they could also love you back just as well.
Love Unconditionally.Giving unconditional love requires you to love without any expectations.(38)A It seems difficult to only love and not demand anything in return in today's world where everyone is selfish.But even in the world we see many examples of unconditional love,for example the love a mother gives to her child and the love between two life partners.To love unconditionally,you will have to learn to sacrifice(犧牲) yourself and your desires and also realize that someone may have a different way of showing his and her love for you.(39)E.
Realize it can be lost.If you realize you can lose the one you love,then you have a greater appreciation of what you have.(40)D Don't make idol of the person you love.This will place them under unnecessary pressure and will likely result in you losing them.Never stop loving.Even if you have been hurt before.You should not stop giving love.

A.Try loving just for the sake of love.
B.Put yourself in someone else's shoes.
C.There are many different ways to explain love.
D.Think how lucky you are to have someone to love.
E.Do not expect to be loved back in exactly the same way.
F.It doesn't make you a bad person to desire someone else's love.
G.There are many different ways to love someone (or even yourself).

查看答案和解析>>

同步練習(xí)冊(cè)答案