Some experts   (1)   that the Chinese were the first people to discover the land that is now called America.They say that many centurise ago explorers   (2)   from a port in China and made a long   (3)   that ended   (4)   the shores of America.If this is true ,then they sailed much   (5)  __ than anyone else had at that time,and arrived   (6)   America long before Columbus. __ （7）___ some experts,the Vikings also sailed to America by crossing the Atlantic,probabbly from Greenland.Someyears ago ,it was difficult to__ （8）___ people that the Chinese and the Vikings risked their lives __ （9）___oceans__ （10）___ other lands.Why would they look for __ （11）___ lands?More and more __（12）___has been collected now, however ,and more and more reasons have been __ （13）___for why the Chinese and Viking might have made such long sea journeys.we have to hope that __ （14）___we will know who discovered America,and who discovered__ （15）___ again later.whoever it was ,we have to remember that the distances involved are very long and realise that they performed__（16）__great historical__ 17___Maybe one day,when more information is collected,people__ （18）__said that it was impossible for the Chinese or Vikings__ （19）__America will have to__ （20）__.

The National Air and Space Museum in Washington, DC has thousands of objects on display, including the 1903 Wright Flyer, Charles Lindbergh’s Spirit of St. Louis, the Apollo 11 Command Module Columbia, and a lunar rock you can touch. In addition to our exhibition gallery, you may want to visit the Albert Einstein Planetarium, Lockheed Martin IMAX Theater, and the Public Observatory on the east end. There are many things to do at the Museum in DC. We offer daily tours and educational activities for both children and adults. We also have scheduled lectures and events throughout the year.

Hours and Admission: Open every day except December 25. Admission is free.

Regular Hours:   10:00 am to 5:30pm

Extended Hours:  10:00 am to 7:30pm

December 26---30, 2014       March 30---April 20, 2015

Friday and Saturdays, April 24---May 16, 2015  May 17---September 7, 2015

Visiting Tips: Limit the number of bags: All visitors are screened through metal detector upon entry. The fewer items you bring inside the Museum, the faster your entry. Before you visit, please review the list of prohibited items, which include pocket knives and tripods(三脚架). Visitors carrying prohibited items will not be allowed inside the Museum, so please leave them at home or in your car.

No Food or Drink: Only bottled water is permitted in the Museum. You may only consume food and other drinks in the Food and Drink Court, not in the Museum. Groups who bring food are encouraged to picnic on the National Hall.

Please Take Photos: You are welcome to take photos for personal use. However, tripods and monopods(单脚架) are not permitted without approval.

First Aid: The Museum has a First Aid office and a nurse on duty. Please contact the nearest security officer or the Welcome Center for assistance.

Visit the Welcome Center: At our Welcome Center in the South Lobby, staff and volunteers can answer any questions you have during your visit.

Open: 10:00am to 5:30      Phone: 202-666-2212

E-mail: NASM-visitorservice@si.edu

Welcome to our school. You can do a lot of things here. Come and join us.

Interesting Greeting Customs in Different Countries

To build a good relationship with foreigners, you should know the customs of the country you visit. This passage will help you earn the trust of the natives.

Japan

Japanese people follow both customs of shaking hands and bowing when greeting. You need to respond as the host does, either by bowing or shaking hands. This is different form the Ukrainian style of greeting. There, you should be ready to present your right cheek, on which three kisses will be planted by the natives, along with a hug.

China 

Chinese people accept the western handshake, but with a lighter grip (握). Looking straight into the eyes while greeting is considered rude in China; it is better to receive the greeting with lowered eyes as a mark of respect. Moreover, in Chinese culture a new friend is greeted with applause. It is interesting that Tibetans show their tongue to people as a gesture of politeness. This means they have no ill thoughts about t hem.

The Arabic World

In some Arabic countries, speaking to the women is not allowed for a foreigner, let alone any other body contact. Men may greet each other with a hug and kiss on both cheeks, followed by a lasting handshake. As a non-Arabic woman, you must wait for the Arabic men to offer their hand to shake, as it is not common in Arabia to shake hands with women.

Russia

Russians prefer a firm handshake followed by a bear hug, especially to a known acquaintance. Even kissing the cheeks of both men and women are popular, but only for Russian men. Similarly in Europe and Latin America, kissing the cheeks is also a popular custom. But for Latin Americans, kissing the top of a lady’s hand after a soft handshake is more popular. Don’t take the hand before the complete handshake is done, as this will be taken as a rejection.