题目内容


It’s not always easy to eat healthy foods when others seem to eat whatever they want. Follow the tips and know that it will make a difference in your life.
What about sweet foods?
Everyone likes the taste of sweet foods! Small amounts of sweet foods can be part of a healthy meal plan. Sugary foods include soda, sweetened fruit drinks, honey, and candy. Desserts such as cakes, pies, cookies, and ice cream contain a lot of fat as well as sugar. If you choose to eat any of these sweet foods, just have a small amount at the end of a healthy meal. Have a piece of fruit if you are still hungry. Drink water, sugar-free soda, and sugar-free fruit drinks, if you are thirsty, instead of drinks that are all high in sugars.
How much should you eat?
Your height, weight, age, whether you are a boy or a girl, and how active you are will affect how much food you need to eat each day to stay at a healthy weight. Everyone is different. Talk to your doctor or diet expert about how much to eat, especially if you need to lose weight. If you take in more food than your body burns, you will gain weight. If you take in less food than your body burns, you will lose weight. Being active and eating smaller amounts of food and fewer sweet or fatty foods can help overweight kids lose weight in a healthy way. You will keep your heart healthy, too.
67.Which of the following desserts is NOT mentioned in the passage?
A.Cakes.                     B.Pies.                        C.Cheese.                           D.Cookies.
68.How much we should eat will depend on the following EXCEPT___________.
A.our body size                      
B.the time we spend taking exercise
C.how old we are             
D.the money our family earns
69.According to the passage, which of the following statements is TRUE?
A.The more food our body burns, the faster we will lose weight.
B.The more food we eat, the more food our body will burn.
C.The more active we are, the more food we need to eat.
D.The more food we eat, the more weight we will gain
70.The author advises overweight children to_________.
A.eat healthy foods and take regular exercise
B.pay much attention to their heart health
C.keep foods containing sugar and fat away
D.talk to their doctor and join a health club

67-70  CDCA
略
练习册系列答案
相关题目
A healthy dose of sunshine may be the secret to staying young, British scientists have disclosed.
Vitamin D is produced naturally by the skin in response to sunlight and may help to slow the ageing process and protect against heart disease, according to the study.
Researchers from King's College London studied 2,160 women aged between 18 and 79, looking at their telomeres - a biological marker of ageing found in DNA．As people get older, their telomeres get shorter and they are easy to have illnesses.
But the study found women with high levels of vitamin D had comparatively longer telomeres - a sign of being biologically younger and healthier.
The study suggests vitamin D may help to slow down the ageing process of DNA, and therefore the ageing process as a whole.
Lead researcher Dr Brent Richards said: "These results are exciting because they prove for the first time that people who have higher levels of vitamin D may age more slowly than people with lower levels of vitamin D．
"This could help to explain how vitamin D has a protective effect on many ageing related diseases, such as heart disease and cancer."
He said further studies are required to confirm the findings.
Professor Tim Spector, head of KCL's twin research unit, and a co-author of the report, added: "Although it might sound absurd(荒谬的), it's possible that the same sunshine which may increase our risk of skin cancer may also have a healthy effect on the general ageing process."
Vitamin D made by the action of sunlight on the skin accounts for 90 per cent of the body's supply, but lower levels can also be obtained through food such as fish, eggs and breakfast cereals.
Other studies have suggested the vitamin plays a key role in protecting against cancer and heart disease.
64．What’s the best title of this passage?
A．Sunshine 'helps to keep you young'
B．Vitamin D has a protective effect on many diseases
C．Telomeres - a biological marker of ageing
D．People have found the secret to having a long life
65．How can people get vitamin D?
A．through water           B．through sunshine     
C．through food               D．both B and C
66．What does the underlined word in paragraph three refer to?
A．It refers to a kind of vitamin that can keep you young.
B．It refers to a biological marker of ageing found in DNA.
C．It refers to a kind of element that can be obtained from sunshine.
D．It refers to a part of the body.
67．Which of the following is not true according to the passage?
A．women with high levels of vitamin D shows a sign of being biologically younger and healthier.
B．vitamin D has a protective effect on many ageing related diseases.
C．too much sunshine may increase our risk of skin cancer.
D．It has been proved that sunshine 'helps to keep you young'.

About ten men in every hundred suffer from color blindness in some way. Women are luckier; only about one in two hundred is affected in this matter. Perhaps, after all, it is safer to be driven by a woman!
There are different forms of color blindness. In some cases a man may not be able to see deep red. He may think that red, orange and yellow are all shadows of green. Sometimes a person cannot tell the difference between blue and green. In rare cases an unlucky man may see everything in shades of green －a strange world indeed.
Color blindness in human beings is a strange thing to explain. In a single eye there are millions of very small things called “cones”. These help us to see in a bright light and to tell difference between colors. There are also millions of “rods”, but these are used for seeing when it is near dark. They show us shape but no color.
Some insects have favorite colors. Mosquitoes prefer blue to yellow. A red light will not attract insects, but a blue lamp will. In a similar way human beings also have favorite colors. Yet we are lucky. With the aid of the cones in our eyes we can see many beautiful colors by day, and with the aid of the rods we can see shapes at night. One day we may even learn more about the invisible colors around us.
1. The passage is mainly about _____________.
A. color and its surprising effects.            B. women being luckier than men
C. danger caused by color blindness          D. color blindness
2. According to the passage, with the help of the “cones”, we can_______________.
A. tell different shapes                    B. see in a weak light
C. kill mosquitoes                        D. tell orange from yellow
3. Why do some people say it is safer to be driven by women?
A. Women are more careful.              B. There are fewer color-blind women
C. Women are fonder of driving than men.    D. Women are weaker but quicker in thinking.
4. Which of the statements about the color- blind is true?
A. Not all of them have the same problem in recognizing color.
B. None of them can see deep red.
C. None of them can tell the difference between blue and green.
D. All of them see everything in shades of green.
5. We can attract and kill mosquitoes by using a _____________.
A. red light       B. yellow light          C. blue light        D. green light

Fresh flowers actually continue to grow while in a vase．So in order to keep flowers fresh, you need to consider what the flowers need to grow and stay healthy．Flowers need water, light, and food．Besides, you need to be aware of a few precautions to take．
Distilled water（蒸馏水） is the best kind of water to use for fresh flowers, because there are no chemicals in it．Change the water for your fresh flowers every day or no less than every 2 days to prevent bacteria（细菌） building up．Cut the stems under water again before putting them back in the vase, so that they will be able to draw water up easily．
Keep your fresh flowers out of direct sunlight．At night, put them in the fridge．This will prolong their life．Adding commercial flower food to good water is probably the best method of keeping flowers fresh．Some people put sugar in the water for food．That is OK, but commercial flower food has bacteria-killing ingredients, which can make the water more acidic（酸性的）．If you want a more natural food for your fresh flowers, try water that has been specially treated．That solution will also give the water acidity, sugar, and bacteria-killing ability．
Keep your fresh flowers away from fruit．Fruit gas, or ethylene, will reduce the life of your fresh flowers, making them get older faster．Ethylene is what makes fruit ripen．It is given off by dead flowers, too, so be sure to remove them．
If you follow these tips, your fresh flowers will last a long time and beautify any room in which you put them．
1．What does the underlined word precautions in Paragraph 1 mean?
A．problems that happen to flowers． B．advantages of having flowers．
C．measures taken to prevent problems．   D．preparations to grow flowers outside．
2．The fact that distilled water is most beneficial for fresh flowers indicates that ______．
A．distilled water is perfect for people to drink
B．running water shouldn’t be used to water flowers
C．it takes great efforts to keep flowers fresh
D．fresh flowers aren’t used to certain chemicals
3．In order to prolong the life of fresh flowers, you should ______．
A．protect them from direct sunlight during the daytime
B．put them in a damp place at night
C．put them in a fridge all the time
D．put them near water during the daytime
4．Which of the following is the best method of keeping flowers fresh?
A．Cutting the stems under water before putting them back．
B．Using distilled water and commercial flower food．
C．Keeping them away from fruit gas．
D．Watering them with water which contains sugar．
One would have to be a fool to overlook the importance of using positive thinking for you rather than allowing negative thinking to work against you. In recent years, research in psychopharmacology (精神药理学) has proved what many people have known over the centuries: a positive attitude is good for you, good for your health, good for your wealth, good for everything. Researchers found that a positive attitude produces a specific chemical reaction which makes people feel better, while negative thinking results in a decline of hormone (荷尔蒙) and shuts down the immune (免疫的) system. This leads to illness and depression. Positive thoughts will make you feel better. Even if you must begin by literally forcing yourself to be positive (faking it, so to speak), it will become contagious (会传播的) and the positive thoughts will generate nice little chemicals and good feelings which will reinforce the positive thoughts.
For example, if you force yourself to smile or laugh, even when you don't feel like smiling or laughing, if you keep at it for a few minutes, you will soon feel like it. Feelings can generate thoughts, but thoughts can also generate feelings. Control your thoughts and you can control your feelings. Positive thinking is important in all aspects of our lives. There is probably no single factor more important in determining your success in achieving your career objectives than your own attitude.
It's often been said that in the land of the blind, the one-eyed man is king. And in the office of militant (好战) negativism, the positive workers shine like gold. You cannot control external events, but you can learn to control your reaction to those events and thereby have a positive attitude and be happy. This vital key to success is totally within your control. Use it.
67. We can infer from the passage that         .
A. positive thinking can cure you of your diseases
B. positive thinking can easily be generated by anyone
C. a decline of hormone may cause you to be depressed
D. a specific chemical reaction is the cause of negative thinking
68. According to the passage, which of the following is true?
A. Feeling and thoughts can generate each other.
B. It's easier to control thoughts than to control feelings.
C. Your success depends wholly on your attitude.
D. Keeping smiling will surely make you successful.
69. Just like a one-eyed man in the land of the blind, you should              .
A. take positive attitude in the office of militant negativism
B. be king in your office
C. pay no attention to what is going on around you
D. control your feeling to what is happening to you
70. The best title to the passage is               .
A. the Bad Effect of Negative Thinking     B. Why Should People Think
C. Positive Thinking Benefits People        D. Thinking: The Vital Way

　　Sports can help you keep fit and get in touch with nature .However, whether you are on the mountains, in the waves, or on the grassland, you should be aware that your sport of choice might have great influence on the environment.
Some sports are resource-hungry. Golf, as you may know, eats up not only large areas of countryside, but also tons of water. Besides, all sorts of chemicals and huge amounts of energy are used to keep its courses（球场） in good condition. This causes major environmental effects. For example, in the dry regions of Portugal and Spain, golf is often held responsible for serious water shortage in some local areas.
There are many environment-friendly sports. Power walking is one of them that you could take up today. You don’t need any special equipment except a good pair of shoes; and you don’t have to worry about resources and your purse. Simple and free, power walking can also keep you fit. If you walk regularly, it will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you feel less anxious, sleep well and have better weight control.
Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying products made from recycled materials. But the final goal should be “green gyms”. They are better replacements for traditional health clubs and modern sports centers. Members of green gyms play sports outdoors, in the countryside or other open spaces. There is no special requirement for you to start your membership. And best of all, it’s free.
64. Which of the following is the author most probably in favor of?
A. Cycling around a lake.         B. Motor racing in the desert.
C. Playing basketball in a gym.    D. Swimming in a sports center.
65. What do we know about golf from the passage?
A. It is popular in Portugal and Spain.
B. It causes water shortages around the world.
C. It pollutes the earth with chemicals and wastes.
D. It needs water and electricity to keep its courses green.
66. The author uses power walking as an example mainly because______.
A. it is an outdoor sport     B. it improves our health
C. it uses fewer resources    D. it is recommended by experts
67. The author writes the passage to_______.
A. show us the function of major sports
B. encourage us to go in for green sports
C. discuss the major influence of popular sports
D. introduce different types of environment-friendly sports

III．阅读理解（共20小题；每小题1.5分；满分30分）
A
The food we eat seems to have a great effect on our health. Although science has made big 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 human illness is related to food and forty percent of cancer is related to food as well. That food is related to illness is not a new discovery. In 1945, some researchers realized that things commonly used to keep color in meats and other food additives（添加剂）caused cancer.
Yet, these additives remain in our food, and it is difficult to know which things on the wrappings of foods are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin (青霉素) to their animals, and because of this, penicillin has been found in the milk of cows. Sometimes similar tings are supplied to animals not for their health, but just to make a profit.
The farmers are simply trying to fatten the animals in order to get a higher price on the market. Although some countries have tried to control such things, the practice continues.
51. According to this passage, we can know___________.
A. cancer was discovered in 1945
B. science has made food unfit to eat
C. perhaps most of human illness is caused by what we eat
D. perhaps most kinds of cancer are related to what people eat
52. The additives in food_________.
A. are bright and colorless                   B. have indirect effects on our health
C. have direct effects on our health          D. have direct and indirect effects on our health
53. People use additives_________.
A. to change color of the food               B. to make food more unfit to eat
C. to take off the diseases of the food        D. to improve the color and taste of the food
54. Which of the following is Not true?
A. We needn’t take care of what we eat.
B. Some wrappings of food are harmful.
C. “The practice continues” means “things are still going on like that”.
D. Farmers try to make more money on the market by fattening their animals.

B
As a kid, I can remember going to the supermarket and grabbing eggs off the shelf. I would run them home to my mother because they were usually going into a delicious cake. Times have changed. Cage-free? Organic? Brown? White? Omega-3s(一种脂肪酸)?Help! Here are some tips to help you figure out which eggs you should be eating.
Brown or white? In fact, color is simply a sign of the breed of hen. Find the freshest egg with the most flavor and let color be a secondary concern.
Extra Omega-3s? Omega-3 eggs come from a hen whose diet has added flaxseed (亚麻籽)，which produces an egg containing an average of 225 mg of Omega-3 fatty acids and vitamin E. The countless health benefits for humans make these eggs an attractive purchase. My opinion? Eat a piece of fresh fish and get a pure pill of Omega-3s. Let eggs be eggs.
Does your egg need exercise? Free-range eggs are from hens raised without the limit of a cage, though they may or may not have spent much time outdoors. Organic eggs are from hens whose food must meet organic standards. These hens must be raised humanly, and they must be given time to the outdoors. Hey, happier hens do lay tastier eggs.
Does local make a difference? Nothing is better than local eggs. They may have a feather or two stuck to them or be a little imperfect in shape and may or may not be certified organic; however, they have one quality. I know exactly where my food came from and how it came into being! In some cases I can even ask the farmer when the eggs were laid and what they were fed.
55.What’s the best title for this passage?
A．Which Eggs Should You Be Eating?       B．Eggs Are Changing as Times Are Changing
C．Which Kind of Egg Is the Best?           D. The First Concern When Choosing Eggs
56. What does the author think of extra Omega-3s eggs?
A．They are a good choice for people to buy.   
B．They contain fewer Omega-3s than fresh fish.
C．They have the highest content of pure Omega-3s.
D．They are not the best source of Omega-3s.
57. The underlined word “free-range” probably means “________ ”
A．wild        B．cage-free         C．organic        D．Omega-3-free
58.According to the passage, which of the following has nothing to do with an egg’s quality?
A．The egg’s color.                         B．The hen’s exercise.  
C．The hen’s living conditions.                D．The hen’s food.

C
The Tasmanian devil is a rare marsupial(有袋动物)that lives only on the Australian island state of Tasmania. The doglike animal is rapidly disappearing. The Tasmanian state government estimates that the number of devils has dropped from around 150,000 in the mid-1990s to between 20,000 and 50,000 at the end of 2007.
The devil was declared an endangered species last week. It is being wiped out by a rare cancer called devil facial tumor(肿瘤)disease(DFTD). It spreads like a cold or flu from animal to animal. The disease is passed when one devil bites another. When the marsupial is infected with DFTD, large tumors develop around its mouth and neck. These growths make it impossible for the devil to eat. Many finally die from starvation within six months of being infected. As the name implies, the disease occurs only in Tasmanian devils and cannot be passed to humans.
You’ve got to remember that devils are scavengers(清扫工). They search through garbage for food. Throughout Tasmania people maintain outdoor dumps. If somebody threw out a carcass(兽类尸体), then the devils might actually consume quite large quantities of it.
The disease has not yet appeared in the devil population that lives in the northwest region of Tasmania. Conservationists have captured some of the healthy devils and sent them to a new home on the mainland of Australia. They hope these DFTD-free marsupials can be used to start a captive-breeding population. Once there are more disease-free devils, they can then repopulate the areas of Tasmania where the species are being wiped out.
Tasmanian devils play an important role in keeping the state’s ecosystem in balance. They keep the population of other predators, such as foxes and wild cats, in check. Ray Nias, head of World Wildlife Federation—Australia’s conservation program, says all Tasmanian wildlife will suffer if the devil becomes extinct. “If the devils go and the foxes and cats increase, it would be all over for a good dozen or more species of mammals, many of which are unique to Tasmania.”
46. It can be inferred that the Tasmanian devil is __________.
A. a hard-working street-cleaner                        B. a grass-eating animal
C. a meat-eating marsupial                                D. A DFTD origin
47. What’s the reason for making the Tasmanian devil endangered?
A. A rare disease called DFTD occurs in Tasmanian devils.
B. Dogs like to attack Tasmanian devils.
C. Tasmanian people try to wipe out Tasmanian devils.
D. The region of Tasmania is becoming hard for Tasmanian devils to breed.
48. To which question does the last paragraph give the answer?
A. How should people protect the devils?
B. What do the Tasmanian people do with the devils?
C. What happens if the devils disappear?
D. Which animal is closely related to the devils?
49. What measures do Tasmanian people take to stop the devils from being wiped out?
A. Trapping disease-free devils in a new place to breed more young devils.
B. Searching the cause of the disease and finding an effective treatment.
C. Developing new chemicals for the infected animals.
D. Moving all the devils to a new home on the mainland of Australia.
50. What’s true about DFTD?
A. It’s a disease that can be spread to human beings.
B. It’s a cold that occurs only in Tasmanian devils.
C. It’s a flu that Tasmanian devils get from their companions.
D. It’s a cancer that can be passed from one Tasmanian devil to another.

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网