10.The food we eat seems to have great effects on our health.Although science has made great steps in making food more fit to eat,it has,at the same time,made many foods unfit to eat.Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to diet as well.Different cultures are subject to certain illnesses because of the food that is characteristic in these cultures.That food is related to illness is not a new discovery.
In 1945,government researchers realized that nitrates(硝酸鹽) and nitrites(亞硝酸鹽),commonly used to keep color in meats,and other food additives,caused cancer.Yet,these additives remain in our food,and it becomes more difficult all the time to know which things on the packaging labels(標(biāo)簽) of processed food are helpful or harmful.The additives which we eat are not all so direct.Farmers often give penicillin to cows and chick and because of this,penicillin has been found in the milk of treated cows.
Sometimes similar drugs are given to animals not for medicinal purposes,but for financial reasons.The farmers are simply trying to fatten the animals in order to get a higher price on the market.Although the FDA has tried repeatedly to control these,the practices continue.

59.How has science done a bad service to mankind?C
A.Diseases caused by food have been done away with.
B.It has caused a lack of information about the value of food.
C.Some harmful materials have been added to our food.
D.Scientists have made food more expensive to eat.
60.What are nitrates used for?B
A.They help process packaged food.
B.They keep the color in meats.
C.They cure diseases of cows and chickens.
D.They cause the animals to become fatter.
61.Which of the following statements is NOT true?A
A.You can find out harmful additives on the packaging labels of food.
B.Drugs given to animals are not all for medical reasons.
C.Researchers knew about the harm of food additives about 60years ago.
D.Food may cause forty percent of cancer in the world.
62.According to the passage,the FDA might beA.
A.a(chǎn)n organization which controls the safety of food
B.a(chǎn) producer which makes additives
C.a(chǎn) factory which processes food
D.a(chǎn) hospital which cures cancer.

分析 本文是一篇科教類閱讀,主要講了有些人為了金錢的利益而向食品中添加各種直接或間接有害于人體的物質(zhì).

解答 59-62.CBAA
59題答案:C考查細(xì)節(jié)推理,根據(jù)原文第二段的In 1945,government researchers realized that nitrates(硝酸鹽) and nitrites(亞硝酸鹽),commonly used to keep color in meats,and other food additives,caused cancer.1945年,政府研究者意識(shí)到通常被用于保持肉類色澤的硝酸鹽與亞硝酸鹽及其它食品添加劑會(huì)致癌.可知本題答案為C選項(xiàng).
60題答案:B考查細(xì)節(jié)推理,根據(jù)原文第二段的In 1945,government researchers realized that nitrates(硝酸鹽) and nitrites(亞硝酸鹽),commonly used to keep color in meats…"1945年,政府研究者意識(shí)到通常被用于保持肉類色澤的硝酸鹽…"可知本題答案為B選項(xiàng).
61題答案:A考查細(xì)節(jié)推理,根據(jù)原文第二段的and it becomes more difficult all the time to know which things on the packaging labels(標(biāo)簽) of processed food are helpful or harmful.而且一直以來想要知道生產(chǎn)出來的食物標(biāo)簽上的哪些東西是有益的還是有害的變得越來越難.可知本題答案為A選項(xiàng).
62題答案:A考查細(xì)節(jié)推理,根據(jù)最后的一句Although the FDA has tried repeatedly to control these,the practices continue.盡管FDA反復(fù)盡力控制這些(人們?yōu)榱私?jīng)濟(jì)利益而向動(dòng)物食品中添加青霉素的行為),但是這些做法依然繼續(xù).可知FDA是一個(gè)管控食品安全的組織,故本題答案為A選項(xiàng).

點(diǎn)評(píng) 本文是一篇科教類閱讀,題目涉及多道細(xì)節(jié)理解題,做題時(shí)結(jié)合原文和題目有針對(duì) 性找出相關(guān)語句進(jìn)行仔細(xì)分析,結(jié)合選項(xiàng)選出正確答案.推理判斷也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確的答案.

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科目:高中英語 來源: 題型:閱讀理解

20.As more people use smart phones to pay bills and store personal information,strict password security has become more important than ever.A new study shows that free-form gestures-sweeping fingers in shapes across the screen of a smart phone-can be used to unlock phones.These gestures are less likely to be observed and reproduced by others than traditional typed passwords.
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32.What can we learn about free-form gestures?A
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B.Users will have to make use of simple gestures.
C.They will never be copied by others.
D.Users must move their fingers in fixed shapes.
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B.a(chǎn)pplication        
C.a(chǎn)ccuracy         
D.security
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A.it is easy to steal any password with a quick eye
B.better ways of setting passwords should be developed
C.people had better not use smart phones to pay bills
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35.The main purpose of the text is toD.
A.a(chǎn)dvise people to use free-form gestures 
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科目:高中英語 來源: 題型:完形填空

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   B.the effect of radiation on living species
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科目:高中英語 來源: 題型:閱讀理解

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A baby's genome can be discovered at birth by a blood test.By examining a person's genome,it is possible to identify raised risks of developing diseases such as cancers.Those at high risk can then he screened more regularly,or given drugs or dietary advice to lower their chances of becoming ill.
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科目:高中英語 來源: 題型:閱讀理解

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C.interesting          D.questionable
126.What does the author mean when he says,"we can't turn the clock back"(Paragraph 3)?B
A.It's impossible to slow down the pace of change.
B.The social reality children are facing cannot be changed.
C.Lessons learned from the past should not be forgotten.
D.It's impossible to forget the past.
127.According to the analysis,compared with normal children today,children treated as mentally ill 50years agoC.
A.had little communication with friends
B.were probably less self-centered
C.probably suffered less from anxiety
D.were considered less individualistic
128.The first and most important thing parents should do to help their children isC.
A.to provide the children with a safer environment
B.to lower their expectations for the children
C.to get the children more active socially
D.to set an example for the children to follow
129.What conclusion can be drawn from the passage?A
A.Anxiety,though unavoidable,can be dealt with.
B.Children's anxiety has been taken too seriously.
C.Children's anxiety can disappear with more parental care.
D.Anxiety,if properly controlled,may help children become mature.

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科目:高中英語 來源: 題型:閱讀理解

19.When we think about happiness,we usually think of something extraordinary,a top great delight.
For a child,happiness has a magic quality.I remember playing police and robbers in the woods,getting a speaking part in the school play.Of course,kids also experience lows,but their delight at tops of pleasure is easily seen,such as winning a race or getting a new bike.
For teenagers,or people under 20the concept of happiness changes.Suddenly it's conditional on such things as excitement,love,and popularity.I can still feel the pain of not being invited to a party that almost everyone else was going to.I also recall the great happiness of being invited at another event to dance with a very handsome young man.
In adulthood the things that bring great joy-birth,love,marriage-also bring responsibility and the risk of loss.Love may not last; loved ones die.For adults,happiness is complex.
My dictionary explains"happy"as"lucky"or"fortunate",but I think a better explanation of happiness is"the ability to enjoy something".The more we can enjoy what we have,the happier we are.It's easy for us not to notice the pleasure we get from loving and being loved,the company of friends,the freedom to love where we please,and even good health.Nowadays,with so many choices and much pleasure,we have turned happiness into one more thing we have.We think we own the right to have it,which makes us extremely unhappy.So we try hard to get it and consider it to be the same as wealth and success,without noticing that the people who have those things aren't necessarily happier.
While happiness may be more complex for us,the answer is the same as ever.Happiness isn't about what happens to us.It's the ability to find a positive for every negative,and view a difficulty as a challenge.Don't be sad for what we don't have,but enjoy what we do possess.

60.According to the passage,happiness lies in the ability toD.
A.think of something extraordinary   
B.experience delight at an old age
C.feel the magic quality of pleasure   
D.enjoy what one has at the moment
61.In paragraph 3,a teenager looks at happiness mainly in terms ofC.
A.material gains                     B.social honor
C.spiritual satisfaction             D.a(chǎn)cademic achievement
62.The author implies that when one dreams wealth and finally gets it heB.
A.can realize what happiness is
B.may not end up with happiness
C.may consider it extreme happiness
D.should not feel content with himself
63.The passage aims to tellB.
A.the great importance of happiness  
B.the real meaning of happiness
C.the constant dream of happiness    
D.the changing concept of happiness.

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科目:高中英語 來源: 題型:選擇題

20.--He is so unhappy.What made him disappointed?
--It's his plans.You can't imagine what it's like to feel that all your plans for the future have _________.(  )
A.set downB.turned downC.put downD.broken down

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