It is traditional for families and friends to get together for a large meal with a turkey，potatoes and other seasonal vegetables.Many of these foods are native to America and were not available in Europe when Europeans first settled in America.

　　Thanksgiving Day parades are held in some cities and towns of the US.Many football games are played and watching them is a popular activity.Some people have a four­day holiday so it is a popular time for trips out of town and to visit friends and relatives.

　　Most government offices，schools and other organisations are closed.Many offices and businesses allow staff to have a four­day holiday.Public transportation systems do not usually operate on their regular timetables.It is one of the busiest periods for travel.This can cause over crowding.Parades and football games can cause problems to the local traffic，so some states have an extra day for the Thanksgiving holiday，known as Thanksgiving Friday.

　　1.When did Thanksgiving Day become a yearly national holiday?

　　A．In 1621.

　　B．In 1789.

　　C．In 1863.

　　D．In 1947.

　　【解析】　细节理解题。从第一段“Since 1863，Thanksgiving Day has been a yearly holiday in the United States.”可知从1863年开始，美国开始每年庆祝感恩节。故选C。

　　【答案】　C

　　2．What may an American do during the Thanksgiving holiday?

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