根据所掌握的文化或背景知识，选择正确答案。

1. Stephen Hawking who can’t walk or even speak is a famous and successful _________.

A. scientist        B. athlete      C. pop singer      D. writer

2. _________ was invented in 1876.

A. The computer   B. The car      C. The telephone   D. The calculator

3. In the USA you can visit ___________.

A. Notre Dame Cathedral                                       B. Big Ben

C. the Golden Gate Bridge                                     D. Buckingham Palace

4. Which behavior is impolite in Japan?

A. Bow to him when you meet someone for the first time.

B. Make noise while eating noodles.

C. Eat or drink while walking on the street.

D. Eat food with chopsticks.

5. On ___________ we can play tricks on others. 

A. Children’s Day    B. April Fool’s Day    C. Christmas Day    D. Thanksgiving Day

6. What can we do to save the environment?

A. Go to bed with the light on.        B. Turn on the shower while washing hair.  

C. Often use paper towels.         D. Take our own bag while shopping.