Article: Handshaking, though a European practise is often seen in big cities of China. Nobody knows exactly when the practice started in Europe. It is said that long long ago in Europe when people met, they showed their unarmed hands to each other as a sign of goodwill. As time went on and trade in cities grew rapidly, people in cities began to clap each other's hands to make a deal or to reach an agreement. This practice was later changed into shaking hands among friends on meeting or leaving each other. "Let's shake (hands) on it" sometimes means agreement reached. Do the Europeans shake hands wherever they go and with whomever they meet? No. Sometimes the Chinese abroad reach out their hands too often to be polite. It is really very impolite to give your hand when the other party, especially when it is a woman, shows little interest in shaking hands with you and when the meeting does not mean anything to him or-her. Even if, for politeness, he holds out his unwilling hand in answer to your uninvited hand, just touch it slightly- There is generally a misunderstanding among the Chinese that westerners are usually open and straighforward, while the Chinese are rather reserved in manner. But in fact some people in western countries more reserved than some Chinese today. So it is a good idea to shake hands with a westerner only when he shows interest in further relations with you. Question: In the old days in Europe, people put out their unarmed hands to each other _ . Yes or no, is the answer "to show friendliness"?
Yes

Article: Everywhere man is altering the balance of nature.He is facilitating the spread of plants and animals into new regions, sometimes deliberately, sometimes unconsciously.He is covering huge areas with new kinds of plants, or with houses, factories, slag-heaps and other products of his civilization.He exterminates some species on a large scale, but favours the multiplication of others.In brief, he has done more in five thousand years to alter the biological aspect of the planet than has nature in five million. Many of these changes which he has brought about have had unforeseen consequences.Who would have thought that the throwing away of a piece of Canadian waterweed would have caused half the waterways of Britain to be blocked for a decade, or that the provision of pot cacti for lonely settlers' wives would have led to Eastern Australian being overrun with forests of Prickly Pear? Who would have prophesied that the cutting down of forests on the Adriatic coasts, or in parts of Central Africa, could have reduced the land to a semidesert, with the very soil washed away from the bare rock? Who would have thought that improved communications would have changed history by the spreading of disease-sleeping sickness into East Africa, measles into Oceania, very possibly malaria into ancient Greece? These are spectacular examples; but examples on a smaller scale are everywhere to be found.We make a nature sanctuary for rare birds, prescribing absolute security for all species; and we may find that some common and hardy kind of bird multiplies beyond measure and ousts the rare kinds in which we were particularly interested.We see, owing to some little change brought about by civilization, the starling spread over the English country-side in hordes.We improve the yielding capacities of our cattle; and find that now they exhaust the pastures which sufficed for less exigent stock. Question: The main idea of the passage is _ . Yes or no, is the answer "that man is altering the balance of nature"?
No

Q: Article: A weather map is an important tool for geographers. A succession of three or four maps presents continuous picture of weather changes. Weather forecasters are able to determine the speed of air masses and fronts to determine whether an individual pressure aroa is deepening or becoming shallow and whether a front is increasing or decreasing in intensity .They are also able to determine whether an air mass is retaining its original characteristics or taking on those of the surface over which it is moving. Thus, a most significant function of the map is to reveal a summary picture of conditions in the atmosphere at a given time. All students of geography should be able to interpret a weather map accurately.Weather maps contain an enormous amount of information about weather conditions existing at the time of observation over a large geographical area. They reveal in a few minutes what otherwise would take hours to describe. The United States Weather Bureau issues information about approaching storms, floods, frosts and all climatic conditions in general. Twice a month it issues a 30-day"outlook" which is a rough guide to weather conditions likely to occur over broad areas of the United States. These 30-day outlooks are based upon an anaiysis of the upper air levels which often set the stage for development of air masses, fronts and storms. Considerable effort is being exerted today to achieve more accurate weather predictions, with identifying and tracking storms over regions which have but few meteorological stations. Extensive experiments are also in progress for weathef modification studies. Question: You may possibly read this article in _ . Yes or no, is the answer "a science book"?
A: No

Article: A cafe owner has defended her decision to pen a Facebook post (an Internet message to be discussed) stating "No, we are not child-friendly," saying it breaks her heart when children damage her possessions. On Monday, the Little French Cafe in Newcastle, Australia, posted an announcement on their Facebook page: "Are we child-friendly? If you are looking for a cafe with a children' s menu, a play area, lounges for your children to jump on, vast space for your baby carriages, an area for your children to run around, and annoy other customers, while you are unaware of them--then the short answer is 'No, we are not child-friendly.' However, if you would like to bring your children here and they are happy to sit at a table with you and behave properly, please come in. Otherwise, there are plenty of places that are specifically designed to entertain your children." The post has since been deleted. Some Facebook users called the post "arrogant " and an "attack on parents," The Newcastle Herald reports. The cafe owner responded with this statement: "I built the cafe myself. It has my blood, sweat and plenty of tears in it." The post came about after the cafe owner was asked by a customer, who had left a one-star review on the cafe's business page, about whether the cafe was child-friendly. Ms Kotz told news.com.au she wrote the bad review because she felt staff reacted negatively towards children at the cafe. The cafe owner said it broke a piece of her heart every time when she was watching children emptying salt and pepper shakers into her fireplaces, parents changing nappies on her lounges, or kids throwing their own food onto her carpet. Although the cafe's policy has attracted a lot of criticism, most people who commented on the Little French Cafe's Facebook page stood by the owner. One woman named Lesley wrote, "I don't think there was anything wrong with what you said by any means. If parents want to take their children to your cafe, they need to be responsible for their behavior." Question: The cafe owner wrote the post _ . Yes or no, is the answer "in response to a customer's question"?
No