People should be able to come to a decision about ions in the air if theyA．note their own reactions.B．move to a healthier area.C．observe domestic animals.D．watch how wealthy people behave.
People should be able to come to a decision about ions in the air if they
A．note their own reactions.
B．move to a healthier area.
C．observe domestic animals.
D．watch how wealthy people behave.
相关考题：
The saying“He who dies rich, dies disgraced” properly means thatA． the wealthy people should give away their fortunes after deathB． the wealthy people should feel ashamed for their assetsC． the wealthy people should abandon their careers for charitiesD． it is shameful for the wealthy people to keep their wealth till death
Recent research had claimed that an excess of positive ions (离子) in the air can have an ill-effect on people's physical or psychological health. What are positive ions? Well, the air is full of ions, electrically charged particles, and generally there is a rough balance between the positive and the negative charges. But sometimes this balance becomes disturbed and a larger proportion of positive ions are found. This happens naturally before thunderstorms, earthquakes or when winds are blowing in certain countries. Or it can be caused by a build-up of static electricity indoors from carpets or clothing made of man-made fibers, or from TV sets, duplicators or computer display screens.When a large number of positive ions are present in the air many people experience unpleasant effects such as headaches, fatigue, irritability, and some particularly sensitive people suffer nausea (恶心) or even mental disturbance. Animals are also found to be affected, particularly before earthquakes; snakes have been observed to come out of hibernation(冬眠), rats to flee from their burrows, dogs howl and cats jump about unaccountably. This has led the US Geographical Survey to fund a network of volunteers to watch animals in all effort to foresee such disasters before they hit vulnerable areas such as California.Conversely, when large numbers of negative ions are present, then people have a feeling of well-being. Natural conditions that produce these large amounts are near the sea, close to waterfalls or fountains, or in any place where water is sprayed, or forms a spray. This probably accounts for the beneficial effect of a holiday by the sea, or in the mountains with tumbling streams or waterfalls.To increase the supply of negative ions indoors, some scientists recommend the use of ionizers : small portable machines which generate negative ions. They claim that ionizers not only clean and refresh the air but also improve the health of people sensitive to excess positive ions. Of course, there are the detractors, other scientists, who dismiss such claims and are skeptical about negative/positive ion research. Therefore people can only make up their own minds by observing the effects on themselves, or on others, of a negative rich or poor environment.After all, it is debatable whether depending on seismic readings to anticipate earthquakes is more effective than watching the cat.According to the passage, static electricity can be caused byA．using home-made electrical goods.B．wearing clothes made of natural materials.C．walking on artificial floor coverings.D．copying TV programs on a computer.
5．—How many people will come to Shanghai next month?—It's hard to say．_______ people，l think．A． Million ofB． Millions ofC． Three millionsD． Three millions of
Ⅲ. Cloze (30 points)Directions: For each blank in the following passage, there are four choices marked A, B, C and D. Choose the one that is most suitable and mark your answer by blackening the corresponding letter on the Answer Sheet.Times have changed and the ideas of the young and the old about the same thing are often ill contra diction. For example, parents and teenagers often disagree about the amount of freedom and responsibility that young people (21) to have. The teenager is more independent and often wants to be (22) to choose his own friends, select his own courses in school, plan for his own vocational (23) , and earn and spend his own money, and generally (24) his own life in a more independent (25) than many parents are able to (26) .Most problems (27) teenagers and their parents yield to (导致) (28) planning and decision making. Within ally particular family, (29) are avoided and problems are solved when all of the persons take (30) in the situation, and (31) in working it out. (32) parents and young people learn how to get (33) well with each other and develop skills in understanding and (34) understood, even (35) most difficult problems are relieved and a situation might appear that teenagers and their parents can some times see eye to eye.21. A. isB. shouldC. willD. are
More and more people come to realize how important the ecosystem is and ( ) the activities to protect the environment.A.take partB.participate inC.involveD.participate
As time ( ) people come to realize how wonderful this movie is.A.goes aroundB.goes outC.goes alongD.goes by
Great Gatsby, written by Fitzgerald in 1925, is a story about ______ who was destroyed by the influence of the wealthy, pleasure－seeking people around him. A.a vagabondB.an idealistC.an eccentricD.an opportunist
Some people fear that ___________ air pollution may bring about changes in ___________ weather around the world.A. /; theB.the; /C.an; theD.the; a
资料：Faces, like fingerprints, are unique. Did you ever wonder how it possible for us to recognize people? Even a skilled writer probably could not describe all the features that make one face different from another. Yet a very young child or even an animal, such as a pingeon can learm to recognize faces. We all take this ability for granted.We also tell people apart by how they behave. When we talk about someone’s personality, we mean the ways in which he or she acts, speaks, thinks and feels that make that individual different from others.Like the human face human personality is very complex. But describing someone’s peronality in words is somewhat easier than describing his face. If you were asked to describe what a nice face looked like, you probably would have a difficult time doing so. But if you were asked to describe a nice person, you might begin to think about someone who was kind, considerate friendly, warm, and so forth.There are many words to describe how a person thinks, feels and acts. Gordon Allports, an American psychologist, found nearly18,000 English words characterizing differences in people’s behavior. And many of us use this information as a basis for describing or typing, his personality. Bookworms, conservatives, military types——people are described with such terms.People have always tried to type each other. Actors in early Greek drama wore masks to show the audience whether they played the villain’s or the hero’s role. In fact, the words person and persoality come from the Latin persona, meaning mask. Today, most television and movie actors do not wear masks. But we can easily tell the good guys from the bad guys because the two types differ in appearance as well as in actions.What is the main idea of this passage?A.How to describe people’s personatitiesB.How to distinguish people’s facesC.How to distinguish people both inward and outwardD.How to differ good people from bad people
问答题Practice 8 You should spend about 40 minutes on this task. Write about the following topic: Some people think people have benefited from modern communications technology, but other people think some people have not benefited at all. To what extent do you agree or disagree? You should write at least 250 words.
单选题This passage tries to tell you how to ______.Aavoid mistakes about money and friendsB“size up” peopleCavoid mistakes in understanding what people tell youDkeep people friendly without trusting them
单选题The author’s purpose in writing this passage is to tell ______.Areaders how to he popular with people aroundBteenagers how to learn to make a decision for themselvesCparents how to control and guide their childrenDpeople how to understand and respect each other
单选题The author’s purpose in writing this passage is to tell _____.Areaders how to be popular with people aroundBteenagers how to learn to make a decision for themselvesCparents how to control and guide their childrenDpeople how to understand and respect each other
单选题The statement that “the people own the air” implies that _____.Acitizens have the right to insist on worthwhile television programsBtelevision should be socialized to cater to the nation’s whimsCthe government may build above present structuresDthe people own nothing, for air is worthless
单选题The main idea of Paragraph Three is that ______.Amost people feel life is easyBthe writer feels life is easyCthe writer likes to complain about his problemsDmost people complain about how hard their lives are
单选题—How many people were invited to the meeting?—About six ______AhundredBhundredsChundred ofDhundreds of
单选题What’s the main idea of the passage?ASome manners on visiting British and American people’s home.BDifferent table manners between British and American people.CDifferent ideas about the home between British and American peopleDDifferent ideas about how to get along well with neighbors between British and American people
问答题Practice 2 You should spend about 40 minutes on this task. Write about the following topic: In countries where there is a high rate of unemployment, most pupils should be offered only primary education. However, others believe that higher education helps people find jobs. Discuss both sides and give your own opinion. You should write at least 250 words.
问答题It is important to think about the people of a destination country and how tourism affects them.
单选题The businessman thinks building houses there can _____.Ahelp the village developBattract many tourists to come for a visitChelp people learn about how people lived in the pastDhelp people learn about the interesting things buried in the ground
问答题Some people think that parents should plan their children's leisure time carefully. Others believe that children should decide for themselves how to spend their free time. Which opinion do you agree? Write a composition of about 400 words to state your view.
问答题The world of work is changing rapidly. Working conditions today are not the same as they used to be, and people no longer devote their life to doing one job for life. Write a composition of about 400 words to discuss the possible causes of these changes, and give your suggestions as to how people should prepare for work in the future.
单选题According to the author, to be an anthropologist means we should _____.Atake interest in what we are doingBnot take interest in what other people are doingCjudge other people’s behaviors with accepted standardsDnot judge other people’s behaviors with our own standards