My family came to America from China many years ago. I was born in Oakland in 1989. Many young Chinese Americans don't learn much1because our parents2us to learn English very well.

    Chinese is a difficult language. If we don't speak it3, it's easy to forget. Writing is hard, too. We have to remember lots of words and thousands of characters (汉字). In English, there are only 26 4.

    At home, I5English with my family. But now, we speak some Cantonese (广东话) because we watch films 6 that language.

    My mom has come to love F4, a Chinese boy band (组合). They are in the film Meteor Garden (《流星花园》). We all7the TV series, and we learn Cantonese8 saying some funny words from the TV series to each other.

    It's fun to speak Cantonese with my Chinese friends. It 9funny because we can't say the words just right.

    Young Chinese Americans know that our culture (文化) is getting lost, so we try to10something.

昼夜交替现象产生的主要原因是(     )

①面对新生活、新环境，感到兴奋和激动      ②学习科目多、难度大，感到压力

③老师忽视他，同学排挤他                  ④感到对学习和生活有点不知所措。