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Dear Wu Dong,

You wrote to ask  me something about American social customs. It’s a good idea to bring a small present when you go to a dinner party. Flowers are always nice, or you may bring a bottle of wine if you know that your friends drink it.

You should arrive on time or five to ten minutes late. Don’t get there early. If you’re going to be more than fifteen minutes late, you should call and tell them.Try to be free at the dinner table. If you don’t know about choosing the right fork or knife, just watch the other people, and follow them. If you still have no idea of what to do, ask the person next to you.If you like the food, say so. Of course, you’ll thank them for the meal and for their kindness. It’s also a good idea to send a thank?you card the day after.

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　　Many children use the Internet to get useful knowledge and  information，and to relax in their free time．But some of them  are not using it in a good way．Here are some rules to make sure  you are safe and have fun on the Internet．

　　·Make rules for Internet use with your parents．For example，when you can go online，for how long and what activities you can do online．

　　·Don't give your password(密码)to anyone else，and never give out the following information：your real name，home address，age，school，phone number or other personal information．

　　·Check with your parents before giving out a credit(信用) card number．

　　·Never send a photo of yourself to someone in email unless your parents say it's OK．

　　·Check with your parents before going into a chat(聊天) room．Different chat rooms have different rules and attract different kinds of people．You and your parents will want to make sure it's a right place for you．

　　·Never agree to meet someone you met on the Internet without your parents'permission(允许)．Never meet anyone you have met online alone．

　　·Always remember that people online may not be who they say they are．Treat everyone online as if they were strangers．

　　·If something you see or read online makes you uncomfortable，leave the site．Tell a parent or teacher right away．

　　·Treat other people as you’d like to be treated.Never use bad language．

　　·Remember not everything you read on the Internet is true．

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　　Library

　　There is a public library in every town in the United States．Most of them ale tall buildings with so many large bright rooms．Anyone may borrow books．In some places you may borrow as many books as you need，but in others you ale limited (限制) to a certain number of books including novels．You may keep the books you have borrowed for several weeks．

　　The latest novels are always in great demand (要求)，and nonfiction (散文文学) books，for example，books on history，driving，science and gardening are also very popular．

　　If the book you want is out，you may ask for it to be kept for you,and if you pay the cost of sending a postcard，the librarian will let you know when the book has been returned and is ready for you．

　　Most public libraries also have a reading room and

a reference (参考) library．In the reading room there are

tables and desks at which you can sit and read the daily

newspapers and all the other important periodicals (期刊): weeklies，monthlies and quarterlies．But you should take good care of your eyesight (视力)．

　　In the reference library there are encyclopaedias(百科全书)，dictionaries，atlases (地图册) and other useful books．But you can only use these books，you can't take them out．

根据短文内容，判断下列各句正(T)误(F)。

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Brazil is beautiful and more than just football.How much do you know about Brazil? You might think of football, samba (桑巴)and the Amazon(亚马逊河).But there is a lot more to this country: its wonderful land, history and culture (文化).On September 7, 1822, Brazil won its independence (独立) from Portugal. So that day is Brazil's National Day (国庆日).It is the largest country in South America and has the second longest river in the world. It is called the Amazon. The river is 6,440 kilometers long and runs through the world's largest rainforest. The rainforest is home to between 800,000 and 5 million kinds of plants and animals. But be careful when you swim because the biggest snake, the Anaconda (大水蟒), and the most terrible fish, the Piranha(水虎鱼), live there!Brazilians love sports, especially football. Many great players were born in Brazil like Ronaldo, Ronaldinho and Rivaldo. Football is played everywhere. It is so popular that schools and businesses close during their important matches!

The Brazilians also love dancing very much. The national dance is the samba. Samba is a very lively and fun dance. Every year in February or March, there is the Carnival (狂欢节). This is a time for parades (游行) and partying! People go out and dance in the streets! Dancers dress up in colorful clothes and go through the streets on big cars called floats(彩车). Tens of thousands of people watch the dancing.If you want to be part of the carnival, then find a chance to travel to Brazil!