题目
题型:不详难度:来源:
That food is related to illness is not a new discovery. In 1945, about 68 years ago, government researchers realized that nitrates, commonly used to preserve color in meats, and other food additives, caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to beef and living animals, and because of this, penicillin has been found in the milk of treated cow. Sometimes similar drugs are given to animals not for medical purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue.
小题1:What is the best possible title of the passage?
A.Drug and Food | B.Cancer and Health |
C.Food and Health | D.Health and Drug |
A.Drugs are always given to animals for medical reasons |
B.Some of the additives in our food are added to the food itself and some are given to the living animals |
C.Researchers have known about the potential dangers of food additives for over thirty-five years. |
D.Food may cause forty percent of cancer in world. |
A.Because of science, diseases caused by polluted food have been virtually eliminated. |
B.It has caused a lack of information concerning the value of food. |
C.Because of the application of science, some potentially harmful substances have been added to food. |
D.The scientists have preserved the color of meats, but not of vegetables. |
A.They preserve flavor in packaged foods. |
B.They preserve the color of meats. |
C.They are the objects of research. |
D.They cause the animals to become fatter. |
A.trouble-making | B.color-retaining | C.money-making | D.cancer-causing |
答案
小题1:C
小题2:A
小题3:C
小题4:B
小题5:D
解析
试题分析:本文主要讲了食物对人类健康的影响,不良的饮食会致癌,特别是现在食品中的添加剂。
小题1:根据Nowadays, the food we eat seems to have great effects on our health.这是文章的主题句,故选C。
小题2: 根据Sometimes similar drugs are given to animals not for medical purposes, but for financial reasons.故选A。
小题3:根据In 1945, about 68 years ago, government researchers realized that nitrates, commonly used to preserve color in meats, and other food additives, caused cancer.可知答案为C。
小题4:根据government researchers realized that nitrates, commonly used to preserve color in meats,可知答案为 B。
小题5:根据In 1945, about 68 years ago, government researchers realized that nitrates, commonly used to preserve color in meats, and other food additives, caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful.可猜测出carcinogenic意思是致癌物,可知答案为 D。
点评:先阅读问题,然后带着问题,再读全文,找出答题所需要的依据,完成阅读。这篇文章非常容易,根据问题找到相关问题的段落或句子,便可选出答案。
核心考点
试题【Nowadays, the food we eat seems to have great effects on our health. Although sc】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
The research of ageing on the heart has shown that women’s longevity may be linked to the fact that their hearts do not lose much pumping power with age.
“We have found that the power of the male heart falls by 20-25 percent between 20 and 70 years of age,” said the head of the study, Samantha of Liverpool John Moores University in the UK.
“Within the heart there are millions of cells which make it beat.Between the ages of 20 and 70, one-third of those cells die and are not replaced in men ,” said Samantha.“This is part of the ageing process.”
What amazes scientists is that the female heart suffers very little loss of these cells.A healthy 70-year-old woman’s heart could work almost as perfectly as a 20-year-old one’s.
“This gender (性别)difference might give the reason why men live shorter than women,”said Samantha.They studied over 250 healthy men and women between the ages of 17 and 80, who are mainly healthy persons so as to reduce the influence of disease.“The team has yet to think about why ageing suffers a greater loss on the male heart,” said Samantha.
But there is also good news -- men can enjoy the health of their hearts with regular exercise.Samantha stressed that women should also take regular exercise to stop their leg muscles getting weaker as they age.
小题1:The underlined word “longevity” in the second paragraph means “________”.
A.health | B.long life | C.ageing | D.effect |
A.men’s heart cells | B.women’s ageing process |
C.the gender difference | D.hearts and long life |
A.men have fewer cells than women when they are born |
B.women can produce the cells that make the heart beat |
C.the female heart suffers less loss of the cells with age |
D.women will never suffer the loss of pumping power with age |
A.enable your heart to beat much faster |
B.think about the reason for ageing |
C.take regular exercise to keep your heart healthy |
D.stop your cells from being lost |
An Australian researcher is urging parents to load up their teenager’s backpack and make them walk to school.
Professor Leon Straker says students who walk or cycle to school are less likely to have back and neck pain. But the study of 1,202 Western Australian 14yearold found that 72% of students travelled to school by car or bus. Straker says the study suggests walking or cycling while carrying a schoolbag helps improve trunk (躯干) and spinal (脊柱的) muscle strength.
This helps reduce back pain because greater muscle strength improves support for the back during load carrying .Despite advocating that parents get their children moving,Straker warns bag load should not exceed (超过) 15% of body weight.
Straker says the study also stresses that neck pain is as common as back pain among young teenagers. This is an area that has been largely ignored,he says,but can be an important indicator of neck pain into adulthood.
For the study,students were asked a series of questions such as how long they carried their bags for,how they carried their schoolbags,the method of travel,and their perceptions(感觉) about the bag’s weight.
Straker says about half of all participants experienced back and neck pain,with slightly more females reporting neck pain. However,the gender (性别) difference may also be due to the fact that females have lower pain tolerance.
Studies from the 1980s found carrying a bag over one shoulder was most common among teenagers. However in this study 85% of participants carried their bag over both shoulders.
Straker believes the change has been driven partly through education campaigns,but also by increasing fashion status of backpacks and improved design.
小题1:In the opinion of Leon Straker,parents should________.
A.reduce the load of their children’s schoolbags |
B.put more books in their children’s schoolbags |
C.get their children’s schoolbags ready for school |
D.ask their children to walk to school carrying schoolbags |
A.no more than 15 kg |
B.less than 6 kg |
C.as heavy as 9 kg |
D.more than 6 kg |
A.most of the students in Australia walk to school |
B.neck pain is uncommon among young teenagers |
C.walking while carrying a backpack helps reduce back pain |
D.males are more likely to experience back pain than females |
A.How students carry their schoolbags. |
B.How heavy students’ schoolbags are. |
C.How students go to school every day. |
D.How long students carry their schoolbags for. |
Modafinil is a smart drug that gives a user a feeling of staying awake for hours. It also sharpens the mind, improves memory and helps problem-solving.
But it does more than just keeping you awake. It disturbs your mental system, making you desperate to do what you are doing. You just don"t want to do anything else but revise all the time non-stop.
A recent study discovers that healthy people use smart drugs, like Modafinil, to get down to and complete tasks they have been putting off, because these tasks seem more enjoyable when taking these drugs. This might sound like what a stressed student desires. However, the pills have a range of side-effects.
"At present no evidence shows that these drugs are safe in healthy people," as a medical expert puts it, "Ordering online, though easy, is a dangerous way to obtain drugs. You never know what you"re actually purchasing. "
In my experience, Modafinil changes people"s behaviour too. Over those weeks my friends became different people—in turn aggressive, cold. Even eating became "a waste of time" and so did conversation.
A BBC survey found that of those who had tried smart drugs before, 92% would do so again. My friends say they"d happily do so without considering the practice a form of cheating.
I admit I was curious—but not enough to try it. Seeing the strange behaviour of other users, I feel a little bit upset and scary. Modafinil may promise to change your grades, but it might also change the way you act. Don"t say you haven"t been warned!
小题1:According to the author, his mates took Modafinil for the purpose of______.
A.escaping from reality | B.getting better exam results |
C.curing their narcolepsy | D.leading an active life |
A.cheating in the exam | B.dropping out of school |
C.youth crime(犯罪) | D.drug addiction(上瘾) |
A.Worrying. | B.Inspiring. |
C.Acceptable. | D.Reasonable. |
A.Modafinil sharpens the mind and helps problem-solving. |
B.Modafinil more than just keeps you awake. |
C.Modafinil has a range of side effects. |
D.Modafinil is safe in healthy people. |
A.Teachers. | B.Doctors. | C.Scientists. | D.Students. |
Recent figures show seven in ten people use air fresheners or scented candles to keep our homes smelling sweet. Yet recent records suggest that perfumed products could affect our health, causing problems including allergies (过敏), headaches and asthma (哮喘) .
One leading expert believes nearly a third of people suffer health effects from being exposed to scents. A major problem is so-called “contact” allergy—where perfumes and scented products cause eczema (湿疹) when they come into contact with the skin. About one in 20 is thought to be affected by fragrance allergy.
“Often it may not be immediately obvious that you have developed a fragrance allergy,” says Dr. Baron. “You don’t react immediately. Gradually, as you are exposed more and more, the body increases its reaction, until it becomes noticeable to you.”
People with pre-existing eczema are particularly vulnerable (易受影响). “The eczema worsens in areas in contact with perfumes,” says Dr. Baron. “But even those without allergies can be at risk of fragrance allergy.” You can become suddenly allergic to perfumes and personal care products that you have been using for years. “Even if you know which fragrance causes a problem, it can be difficult to avoid, as most personal care products –soap, shampoo, sun cream and washing powder—contain fragrances,” says Dr. Baron.
And strong scents can also cause headaches. Fragrances activate the nose’s nerve cells, stimulating the nerve system associated with head pain. To minimize risk, sufferers are advised to minimize the contact.
“Fragrance suggest cleanliness – yet people are smelling a potentially dangerous chemical mixture,” says Anne Steinemann, professor of the University of Washington. “We often use them to mask one problem – as with air fresheners – but create a greater one – adding poisonous chemicals to the air.”
小题1:What is the text mainly about?
A.The world trend of using fragrance. |
B.The benefits of using non-fragranced products. |
C.The health problems caused by fragrance |
D.The ways of removing allergy. |
A.our bodies have an immediate reaction to fragrance. |
B.seven in ten have suffered fragrance allergy. |
C.fragrance can affect people who don’t have allergy |
D.people can avoid contacting with fragrance easily |
A.Which products contain fragrance? |
B.What’s the influence of fragrance in the air? |
C.What are the air fresheners made up of? |
D.How are headaches caused by fragrance? |
A.the asthma caused by strong scents. |
B.people’s efforts to protect fresh air. |
C.the methods of curing eczema |
D.the bad effects of air fresheners. |
If you have to miss a meal a day, which meal will cause you fewest health problems if you don’t eat it? If you have to make a decision of this type, most people (especially very busy people) will choose to skip breakfast.
However, many experts in the field of health consider breakfast ( the meal which “break” you “fast” ) to be the most important meal of the day. If we eat a good breakfast, they say, we will have the energy and nutrients (营养) we need to begin our working day with vigor(活力) and stay hopeful with good honor. However, many people skip breakfast or substitute a cup of coffee for a well balanced meal. What happens if we ignore the importance of breakfast?
One recent study conducted in the United States tested a large number of people. Participants(参加者) included both males and females who ranged in age from 12 to 83. The results showed that if a person eats an adequate(丰富的) breakfast, he or she will work more efficiently(效率高地) and more productively than if he or she skips breakfast or eats a very poor breakfast. This fact appears to be especially true if a person’s work involves mental(脑力的) activities. The study showed that if school-children eat fruit, eggs, bread and milk before going to school, they will learn more quickly and will be able to concentrate on their lessons for a longer period of time than if their breakfast is inadequate(不丰富).
The study also showed that contrary to what people believe, if you skip breakfast, you will not lose weight. This is because people become so hungry if they skip breakfast that they eat too much for lunch and end up gaining weight instead of losing. So remember, if you want to lose weight, skipping breakfast will not help you. You will likely lose more weight if you decrease your other meals.
小题1: According to experts, breakfast is the most important meal of the day because _____.
A.a good breakfast breaks you down fast |
B.you’ll lose weight quickly if you skip breakfast |
C.breakfast provides what a person needs to work |
D.after a long night, you’ll feel very hungry |
A.to exchange a cup of coffee for a well balanced meal. |
B.To drink a cup of coffee instead of a well balanced meal. |
C.To change a cup of coffee into a well balanced meal. |
D.To regard a cup of coffee as a well balanced meal. |
A.school-children will be quick and attentive all day if they eat breakfast |
B.a proper breakfast will make mental workers more efficient |
C.fruit, eggs, bread and milk are the best breakfast for mental workers |
D.school-children who have breakfast are much brighter than those who don’t |
A.Some people skip breakfast because they want to be slimmer. |
B.Most people who skip breakfast actually eat more for lunch. |
C.People put on weight because they eat too much breakfast. |
D.Skipping breakfast won’t help people who want to lose weight. |
A.How to Lose Weight | B.What’s a Healthy Diet |
C.Surprising Results of a Study | D.Breakfast – A Meal That Breaks You Fast |
最新试题
- 1从离地500m的空中由静止开始自由落下一个小球,取a=10m/s2,求:(1)经过多少时间落到地面;(2)从开始落下的时
- 2从物理学的角度对一下成语进行解释,正确的是( )A.震耳欲聋--声音的响度很大B.隔墙有耳--声音的传播可以不需要介质
- 3从今年6月份开始,我县也实施了农村义务教育营养改善计划。小刚同学发现我们每天饮用的新希望牌学生饮用奶,每盒体积是200m
- 4目前,已经在南极洲建立科学考察站的国家一共有______个.
- 5The medium believes the price of petrol will rise by more th
- 6下列常用图例符号中,错误的是[ ]A.水电站B.河流C.铁路D.长城
- 7下列词语中,书写无误的一项是[ ]A.一尘不染 相得益章 面面相觑 团结御侮B.斑斑驳驳 枉下断语 进
- 8设圆x2+y2-4x-5=0的弦AB的中点为P(3,1),则直线AB的方程是 ______
- 9如图所示,用一把直尺可以测量神经系统的反应速度。现有甲、乙两同学,甲同学用手指拿着一把长50cm的直尺,乙同学把手放在零
- 10如图所示,光滑水平面上放有A、B、C三个物块,其质量分别为mA=2.0kg,mB=mC=1.0kg,用一轻弹簧固接A、B
热门考点
- 1根据汉语提示完成句子。1. 作为记者通常比较忙碌。 _______ a reporter, they are usu
- 2已知数列中,,且,其前项和为,且当时,.⑴求证:数列是等比数列;⑵求数列的通项公式;⑶若,令,记数列的前项和为.设是整数
- 3(1)已知sinx+cosx=15,x∈(0,x),求tanx的值.(2)已知0<α<π2<β<π,cosα=35,si
- 4若直线:平行于直线,则直线在两轴截距之和为A. 6B. 2C. -1D. -2
- 5下列框图中的物质均为初中化学常见的物质,其中A是建筑材料的主要成分,B是金属氧化物,如图所示是各物质之间的相互转化关系.
- 6曲线y=2x-x3在点(1,1)处的切线方程为( )。
- 7—People say the subway (地铁) building in Harbin in a f
- 8在海洋中,藻类植物出现明显的分层现象,不同的水层生活着不同的植物类型.影响其垂直分布的主要原因是( )A.光照B.温度
- 94的算术平方根是( )A.2B.C.;D..
- 10正常人的原尿与血液相比,主要区别是原尿中不含有 [ ]A.尿素和尿酸 B.血细胞和大分子蛋白质 C.血