2014年1月12日，我国3名潜水员圆满完成首次300米饱和潜水作业，实现“下五洋捉鳖”的壮举．

选词填空。

excited, skill, may, they, without, but, include, part

    American teenagers(青少年)enjoy doing part-time jobs．They think it's an important____of growing up．They can learn some important____by doing part-time jobs and they can also make some money in this way．
    American teenagers usually begin to do part-time jobs at the age of 14．On weekdays，they____go to work a few hours a week after school．They usually work for longer at weekends．
    In summer,American teenagers are____if they find part—time jobs at camps or swimming pools．These jobs can bring____much fun．
    Some difficult jobs____teaching， nursing and police work．____these jobs can be helpful for their future．When they grow up，the students with work experience are more likely (可能的)to be successful than those____work experience．

口语交际·综合性学习。

古诗云：“才从塞北踏冰雪，又向江南看杏花。”造成塞北与江南景观差异的因素是（    ）

我国面积最大的省级行政单位的行政中心是（   ）