In the front of many American homes you can see a mat(脚垫).This mat is sometimes called “welcome mat”, because many of the mats have the word “welcome” on them.

Because Americans don’t take off their shoes before going into the house, they need a welcome mat to clean their shoes. If the children don’t clean their shoes on the mat, they may be scolded(被责骂) by their parents. If you go to an American home, please remember to clean your shoes on the mat, or you may be told to do so.“Different countries, different customs(习俗).”

1.There are many “welcome mats” in the front of an American home.

2.Every American home has a welcome mat.

3.When Americans go into the house, they often take off their shoes.

4.It’s better to clean your shoes before you go into an American home.

5.There are different customs in different countries.

阅读下面短文，完成阅读任务。

    Tibet(西藏) is among (在……之中) the most popular places for Chinese travelers．The number of tourists to Tibet has grown by 10% every year for a few years．What is the best way to go to Tibet for trip，by plane，by bus or by train？People who want to go to Tibet always ask this question．If you take the plane，you won’t see the beautiful places on the way．If you take the bus，you will be very tired after the trip．If you take the train，you can enjoy the scenery along the way and sleep quite well．Now，since July 1，when the first train ran 1956 kilometers from Xining to Lhasa，more and more people have been going to Tibet．The train stops at several famous places along the way，such as Qinghai Lake，Kunlun Mountain，and the Potala Palace．Passengers call also enjoy many activities during the journey，like Tibetan dancing and Karaoke．On the train，passengers can have tea，eggs and noodles for breakfast，and flied green vegetables and chicken for lunch．Unlike most Chinese trains which have open-hole toilets．this one has special toilets which can collect the waste．There is also a special garbage system in the train that keeps the environment clean．

    All the windows on the train can protect people from the bright sunlight．Other equipment，such as televisions，and electrical sockets for computers and cellphones，can also be found on the train．

    Because there isn’t much oxygen(氧气)there，trains will have oxygen masks for those who need them．It makes passengers feel more comfortable when they have enough oxygen on the famous“roof of the world”．There are also doctors on the train to make sure that all of the travelers are safe．

    “I feel very comfortable，”said Yue Jiang，a Beijing-born scientist who has lived in the United States for 20 years．“It certainly meets Western standards and it’s very clean．’’

1．写出划线句子的同义句。

2．从第一段中找出一组同义词。

3．How far is it from Xining to Lhasa?

4．Fibet is also called (被称为)“_____________”．

5．The best way to go to Tibet is_______ because you can enjoy the scenery along the way and_____．