Apparently,we are safe neither at home nor in the business office.We use water in both places,but the research shows that chemicals added to our local water supply to kill harmful bacteria can have unwanted side effects.These chemicals can cause potential harm through drinking and in seemingly harmless activities as cleaning one’s house.They are released(set free)from water by daily actions like water running out of tap,spraying from garden pipes,or splashing in dishwashers and washing machines.As the water is moving.these chemicals are released into the air and then breathed in. Once inside our bodies, they start to affect our health.
Does this mean we should stop bathing? No, say the scientists, but we should put all pollution into perspective. Activities at home such as the burning of coal, cooking oil, or even candles release carbon monoxide and particulates such as cigarette ashes which have been proven as harmful to health as working or living near heavy traffic. New tugs, bedding, and even clothing give off that“new smell, ”which is a sure sign of chemicals. In the office, newly applied paint, newly purchased telephones and other telecommunications equipment, and computers release polluting chemicals, too. As offices and homes often have inadequate ventilation (通風(fēng)), these chemicals can build up to become health problems. Their poisonous effects are only now being slowly recognized.
These facts suggest that, at a minimum, proper airing of newly purchased goods with an obvious chemical smell is a wise warning. Home and office windows should be opened during good weather. Even one’s car needs to be ventilated as well while in the garage.
We need further research to understand better other potential health dangers, too. For example, the effects of overcrowding of schools (carbon dioxide build-up ), the factory work environment ( an endless list of potentially dangerous substances ), and even home heating and cooling (the air conditioner may be our enemies, not our friends) have only recently started to come to light. Until we understand the effects of our new technological environment better, we can only hope that“there is no place like home.”
64.What is the main idea of the first paragraph?
A.The air we breathe in is harmful.
B.The water in everyday use is unsafe.
C.Chemicals are added to the drinking water.
D.Chemicals are released in the running water.
65.In Paragraph 2, the underlined sentence means that       .
A.bathing should be done with caution
B.homes and offices should be aired often
C.a(chǎn)ny pollution should be taken into consideration
D.we should prevent any pollution from doing harm to us
66.What is the purpose of the passage?
A.To call on us to guard our water.
B.To show us that no place is like home.
C.To make us aware of the pollution around us.
D.To argue that neither homes nor offices are safe.
64. B        65. C  66. C  
練習(xí)冊(cè)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


Moods, say the experts, are feelings that tend to become fixed, influencing one’s outlook for hours, days or even weeks. That’s great if your mood is a pleasant one, but a problem if you are sad, anxious, angry or simply lonely.
Perhaps the best way to deal with such moods is to talk them out; sometimes, though, there is no one to listen. Modern pharmacology(藥理學(xué))offers a lot of tranquilizers(鎮(zhèn)靜劑)What many people don’t realize, however, is that scientists have discovered the effectiveness of several non-drug methods to set you loose from an unwanted mood. These can be just as useful as drugs, and have the added benefit of being nonpoisonous. So next time you feel out of sorts, don’t head for the drug-store but try the following methods.
Of all the mood-altering self-help techniques, aerobic exercise seems to be the most efficient cure for a bad mood. “If you could keep up the exercise, you’d be in high spirits, ” says Kathryn Lance, author of Running for Health and Beauty.
Researchers have explained biochemical and various other changes that make exercise compare favourably to drugs as a mood raiser. Physical exertion such as housework, however, does little. The key is aerobic exercise—running, cycling, walking, swimming or other repetitive and sustained activities that increase the heart rate, increase blood circulation and improve the body’s use of oxygen. Do some of the activities for at least 20 minutes a session three to five times a week.
小題1:What is the main subject discussed in the passage?
A.How to beat a bad mood.B.How to talk bad moods out.
C.How to do physical exercises.D.How to join in aerobic exercises.
小題2:According to the passage, all of the statements are true EXCEPT that       
A.climbing is an efficient cure for a bad mood
B.moods can have a bad effect on people’s health
C.a(chǎn)erobic exercise can help people get rid of bad moods
D.pharmacology has provided people with many tranquilizers
小題3:“Feel out of sorts” in paragraph 2 could best be replaced by “       
A.put things in orderB.a(chǎn)re in high spirits
C.a(chǎn)re in a bad moodD.search for tranquilizers
小題4: It can be inferred from the passage that        
A.some drugs are more effective than physical exercises
B.a(chǎn) person does not need aerobic exercise if he is in a good mood
C.the best way to overcome a bad mood is to talk to oneself
D.when in a bad mood, one may not work very efficiently

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Today’s generation of young people is the largest in human history. Nearly half the world’s population — more than 3 billion people — are under the age of 25. More than half the world’s young people — about 850 million between the ages of 10 and 24 — live in Asia and the Pacific region.
This rapidly expanding youth population is increasingly vulnerable to HIV.  Young people are at the center of the HIV/AIDS epidemic . Of the 10 million young people living with HIV worldwide, 21% live in Asia and the Pacific region. When surveying of all new HIV/AIDS cases globally, nearly a quarter of all people living with HIV/AIDS are under the age of 25. An estimated 6,000 young people are infected every day — one every 14 minutes. The majority are women and girls. In South Asia, where over 1 million young people between the ages of 15 to 24 are infected with HIV, more than half (62%) are young women.
Young people are key to defeating the HIV/AIDS epidemic. Yet in most countries, they lack the information, education and services that will enable them to make informed and healthy choices about their health, and the needs of youths are often ignored. UNESCO, in collaboration with other UN agencies, governments, NGOs and community-based organizations, makes efforts to ensure the health needs of youths, including HIV prevention education, programs and policies implemented throughout Asia and the Pacific region.
59. How many young people with HIV live in Asia and the Pacific area?
A. 3 billion               B. 850 million        C. 100 million           D. 2.1 million
60. Which of the following statements is NOT true?
A. It’s young people themselves that can defeat HIV.
B. Most cases infected with HIV are young people.
C. Most young people who are infected with HIV are women.
D. Half of the world population is infected with HIV.
61. From the passage we can conclude that ________.
A. more and more young people will be infected with HIV
B. it’s because of not being informed that young people are easy to be infected
C. people in Asia and the Pacific region are easy to be infected
D. there is no policy for teenagers’ prevention of HIV

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空


Several years ago, well-known writer and editor Norman Cousins became very ill. His body ached and he felt constantly tired. It was difficult for him to even __21__ around. His doctor told him that he would lose the ability to move and eventually die from the disease. He was told he had only a 1 in 500 chance of survival.
Despite the diagnosis(診斷), Cousins was __22__ to overcome the disease and survive. He had always been interested in medicine and had read a book, which discussed the idea of how body chemistry and health can be damaged by emotional stress and negative __23__. The book made Cousins think about the possible __24__ of positive attitudes and emotions. He thought, “Is it possible that love, hope, faith, laughter, confidence, and the __25__ to 1ive have positive treatment value?”
He decided to concentrate on positive emotions as a way to treat some of the symptoms of his disease. In addition to his traditional medical treatment, he tried to put himself in situations that would __26__ positive emotions. “Laugh therapy” became part of his treatment. He __27__ time each day for watching comedy films, reading humorous books, and doing other activities that would draw out _28__ emotions. Within eight days of starting his ‘‘laugh therapy” program his pain began to __29__ and he was able to sleep more easily. He was able to return to work in a few months’ time and _30__ reached complete recovery after a few years.
21. A. run                    B. pass                         C. move                              D. travel
22. A. able                    B. determined              C. willing                               D. positive
23. A. attitudes             B. beliefs                      C. goals                              D. positions
24. A. shortcoming        B. harm                        C. benefit                                   D. interest
25. A. emotion                     B. pain                        C. fear                                D. will
26. A. bring about         B. set about                  C. put up                             D. make up
27. A. afforded                B. appointed                 C. offered                           D. arranged
28. A. positive                     B. approving                 C. strong                             D. mixed
29. A. escape                B. decrease                   C. shrink                             D. end
30. A. generally            B. especially                 C. actually                           D. presently

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

    You hear this,“No wonder you are fat.All you ever d0 is eat.”You feel sad.“I skip my breakfast and supper.I run every morning and evening.What else can I do?”
Basically you can do nothing.Your genes,not your life habits,determine your weight and your body constantly tries to maintain it.
Albert Stunkard of the University of Pennsylvania found from experiments that“80 percent of the children of two fat parents become fat,as compared with no more than 14.percent of the children of two parents of normal weight.”   
How can obese people become thinner through dieting? Well,dieting can be effective.but the health costs are great.
Jules Hirsch,a research physician at Rockefeller University,did a study of eight fat people.They were.given a liquid formula(配方)providing 600 calories a day.After more than 10 weeks,the subjects lost on average 45 kg.But after leaving the hospital,they all regained the weight.
The results were surprising:by metabolic(新陳代謝的)measurement,fat people who lost large amounts of weight seemed like they were starving.They had psychiatric problems.They dreamed of food or of breaking their diet They were anxious and depressed.Some wanted to kill themselves.They hid food in their rooms.
Researchers warn that it is possible that weight reduction doesn’t result in normal weight,but in an abnormal state lust like that of starved non.obese people.   
Thin people, however,suffer from the opposite.They have to make a great effort to gain weight  Ethan Sims of the University of Vermont got prisoners to volunteer to gain weight.In four to six months—they ate as much as they could.They succeeded in increasing their weight by 20 to 25 percent. But months after the study ended,they were back to normal weight and stayed there.
This did not mean that people are completely without hope in controlling their weight.It means that those who tend to be fat will have to constantly battle their genetic inheritance(遺傳)if they want to significantly 1ower their weight.
The findings also provide evidence for something scientists thought was true—each person has a comfortable weight range.The range might be as much as 9kg.Someone might weigh 60--69kg without too much effort.But,going above or below the natural weight range is difficult.The body resists by feeling hungry or full and changing.the metabolism to push the weight back to the range it seeks.
小題1:The story is mainly written to      。
A.point out the relations between our body and mind
B.warn us it’s extremely harmful to reduce or gain our weight
C.tell us that it’s difficult to make a significant change in our weight
D.stress that dieting 1s a recommended way to help you reach your desired weight
小題2:Jules Hirsch’s study’found that        .
A.big weight loss could lead to mental problems
B.a(chǎn) person’s weight can be decided by their parents’ weight
C.only dieting cannot produce a desired result in weight reduction
D.big efforts to lose weight may result in a weight much heavier than one’s normal weight
小題3:From the text,we know that the body can still feel comfortable
A.when the weight goes up or down by 6 kg
B.when the weight goes up or down by l0 kg
C.when the weight is increased by 20 to 25 percent
D.when the weight is decreased by 20 to 25 percent
小題4:What can be inferred from the passage?
A.When it comes to weight,naturalness is the healthiest
B.Weight reduction could be both risky and painful.
C.Seek professional advice when reducing your weight.
D.There’s no hope and no point in controlling your weight.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Meat and vegetables are measured in grams and kilograms. Milk and other liquid foods are measured in liters or milliliters. These units only measure quantity: they do not measure the value of the food to the body. The unit which measures the quality or value of food is the calorie the amount of heat given off by food when it brurns. This measurement tells how much energy a certain food has when it is completely used by the body.
Our bodies use varying(不同程度的) amount of calories. The more exercise we take, the more calories we burn. If we eat food which contains more calories than we use up, then it is possible that we would increase in weight. In order to avoid becoming overweight, it is advisable to eat a balanced diet and not eat too many foods that have a high calorie rating. The table below gives you some idea of the number of calories in food.
A. Meats
Slice of bacon 50
Hamburger 300
Slice of beef 100
Sausage 180
Meat pie 500
Sausage roll 350
 
B.Fruits
Apple 70
Orange 70
Pear 80
Banana 80
Plum 20
Tomato 20
 
 
 
C. Sweets and Pastries
Small chocolate bar 190
Large chocolate bar 225
Slice apple pie 300
Doughnut 200
Scoop of ice cream 85
Bag of potato crisps 145
 
D. Vegetables
60g carrots 18
60g potato 60
60g onion 25
60g cucumber 10
60g cabbage 15
小題1:Which is the best title of passage?
A.How to Measure the Quality of FoodB.Calories in Foods
C.The Units of MeasurementD.How to Keep Fit
小題2: How many slices of bacon equal the same number of calories as in a sausage roll?
A.7.B.6.C.5.D.8.
小題3:To keep the calorie intake(吸收) down, it is better to eat more           .
A.chocolateB.meat pieC.fruitD.a(chǎn)pple pie
小題4: Which word in this passage means “heavier than normal”?
A.Advisable.B.Overweight.C.Balanced.D.Measurement.
小題5: When do you need the most calories from your diet?
A.When we sleep.B.In working in the fields.
C.While watching a playD.After having sports.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


B
Do you have a sore throat, a running nose and a headache? Do you keep coughing and sneezing? If you do, the chances are that you have a cold or perhaps flu — but which one? Although both colds and flu are caused by viruses, they are very different illnesses.
Colds, which usually last about a week, affect the nose most. They commonly cause a running nose and sneezing. Sometimes, they cause a headache, a cough and slightly aching muscles.
Flu is a much more serious illness and is caused by different group of viruses. People with flu usually get all the symptoms described above. However, they also get a high fever, a dry cough and much worse aching. Fever is one of the characteristic symptoms of the flu for all ages. The symptoms also last much longer. Sometimes they don’t disappear for at least two weeks.
Flu can be a deadly disease. The elderly, who are weaker and less healthy than most younger people, can die from flu. This is one reason why old people are advised to have a flu injection (預(yù)防針) before the start of winter when flu is most common. This injection is inexpensive and definitely worth it.
If you have a cold or flu, you must always deal with used tissues (紙巾)carefully. Don’t leave dirty tissues on your desk or on the floor. Someone else has to pick these up and viruses could be passed on. And finally, remember to cover your nose and mouth when you sneeze! You don’t want to see the small drop of liquids blown out of your nose and mouth when you sneeze, do you? Disgusting, eh? Now you can understand why it’s a good idea to cover your nose and mouth when you sneeze!
60. According to the passage, people with colds hardly get _______.
A. a headache               B. a high fever                     C. a running nose          D. aching muscles
61. In paragraph 4, we learn that _______.
A. flu injection can cause death                                 B. most old people die from flu
C. flu is most common in summer                             D. flu can kill old people easily
62. Dealing with used tissues properly is important because _______.
A. it helps keep your classroom tidy                          B. people hate picking up dirty tissues
C. it prevents the spread of colds and flu                       D. picking up lots of tissues is hard work
63. Which of the following statements is true according to the passage?
A. Both colds and flu last the same time.                  
B. Both colds and flu can be prevented by injection.
C. Both colds and flu are caused by the same viruses. 
D. Both colds and flu have an aching symptom.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

Hunting with birds is a very old sport. In some countries the golden eagle is used for hunting wild animals. They are used for hunting foxes and wolves.
Training an eagle to hunt takes a long time. Hunters catch young eagles in nets made of hair. After being trained the eagle is taken to a field. A blindfold over the bird’s eyes keeps it quiet until the hunter is ready.
The eagle sits in the arm of the hunter. The hunter’s arm is covered with a long, special glove to protect it from the sharp claws of the bird. In the field, as soon as the hunter sees a fox or a wolf, he removes the blindfold. The eagle quickly flies into the air and began to look for the wild animal.
The eagle sees the animal and catches it with claws like steel. Its beak and claws are strong enough to hold the animal. Usually, the bird carries the animal back to the hunter. Sometimes fast animals with good eyes can get away.
61.A hunting eagle is trained when_________.
A.it is still young          B.it is taken to a field
C.its eyes are covered with a blindfold
D.the hunter is ready
62.Hunters use nets made of hair to ________.
A.train young foxes     B.catch young wolves
C.train young eagles    D.catch young eagles
63.The trained eagle_______.
A.carries the hunter home
B.wears a blindfold when hunting an animal
C.is covered with a long, special glove
D.has strong claws like steel
64.A hunter wears a special glove to _______.
A.protect his arm from the sharp claws of a trained eagle
B.protect his arm from the sharp claws of a young fox
C.protect his arm from the sharp claws of a young wolf
D.protect his arm from the sharp claws of wild animals
65.According to the text, which of the following is true?
A.Fast animals with sharp eyes are sometimes difficult to catch
B.As soon as the blindfold is removed, the eagle flies into a tree
C.Hunters always blindfold young eagles before training them.
D.Sometimes hunters train young foxes they have caught.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


Ⅲ 閱讀(共兩節(jié)。滿分40分)
第一節(jié)閱讀理解(共15小題;每小題2分,滿分30分)
閱讀下列短文,從每題所給的A、B、C和D項(xiàng)中,選出最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。
A
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 (營(yíng)養(yǎng)) is important for good health. Your body cannot work well unless it receives the proper kind of “fuel”. Don't eat too much food with lots of sugar and fat. Eat plenty of foods high in protein (蛋白質(zhì)) , like meat, fish, eggs and nuts. Vegetables and fruits are very important because they provide necessary vitamins (維他命) 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. Be sure to allow yourself from seven to nine hours of sleep each night. 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).Any kind of exercise is good. Most sports are excellent for keeping the body in good shapes: basketball, swimming, bicycling, running and so on are good examples. 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.
41. According to the passage,_________.
A .we should always keep fit
B. if we were healthy, we could spend our days in doing things with less sleep
C. one can eat a lot to stay in good shape
D. one needn't take any exercise if he is healthy
42. In order to keep good health, ___________ .
A. we should eat a lot of sweets      
B. one needs a large amount of fat
C. people should eat according to the foods nutrition
D. we must try to sleep now and then
43. Eating more and sleeping less________.
A. can keep healthy                 B. is no good for you
C. gets you more energy           D. will keep your personality
44.The writer explains ________in this passage.
A. how to eat                         B. the importance of doing exercise
C. how to keep healthy             D. what to eat
45.The title of the article should be___________ .
A. Eating and Exercising           B. How Vitamins Work in Man's Body
C. Staying Healthy                   D. Sleeping Well

查看答案和解析>>

同步練習(xí)冊(cè)答案