Roger, a young man from China, has taught Chinese in a primary school in England for 3 years. A lot of children like his class and he enjoys teaching them very much. All the pupils are quite interested in what Roger teaches them. They learn quickly and do everything carefully.
One day he said to the children, “People in a lot of Asian countries wear white clothes at funerals(葬礼), but people in America and in Europe wear white in the weddings because white means purity and happiness. What colour does an English woman wear when she gets married?”
Mary said, “White, sir, because she is happy.” “That is good, Mary,” Roger said. “You are quite right. She wears white because she is happy.”
But then one boy in the class put up his hand. “Yes, Dick?” Roger said, “Do you have a question?” “Yes,” Dick said. “Why do men wear black in our country when they get married, sir?”
小题1:What does Roger do?
A．He teaches English in China
B．He is a Chinese teacher in China
C．He teaches Chinese in England
D．He teaches English in England小题2:Roger enjoys teaching his pupils because_________.
A．they are his own children
B．they are clever and careful
C．they are lovely
D．they are polite and helpful小题3:An English woman wears white clothes________.
A．when she gets married
B．when she is worried
C．when she is sad
D．when she is at a funeral小题4:What colour do men in England wear when they get married?
A．White
B．Black
C．Red
D．Green小题5:Which of the following is true?
A．Roger dislikes teaching the children.
B．Dick, a clever boy, liked asking questions.
C．Dick was a slow girl.
D．People in England wear white when they get married.
，钠离子的符号可表示为______。