自强不息、反抗外来侵略是中华民族的优良传统。请根据下列语句写出所对应的历史人物。（1）“若鸦片一日未绝，本大臣一日不回，誓与此事相始终”____ 。（2）“弃官从商，实业救国”____ 。（3）“此日漫挥天下泪，有公足壮海军威”____ 。（4）“我自横刀向天笑，去留肝胆两昆仑”____ 。
从方框中选词并用其适当形式填空
wear sing hear watch help
（1）Tony likes music and he likes ____.
（2）Be quiet! Can you ____ someone is singing a song?
（3）Tom’s aunt always ____ T- shirts.
（4）The family like ____ TV at home together.
（5）Li Lei always ____ others.
金属钒被誉为“合金的维生素”。五氧化二钒(V2O5)中钒元素的化合价为( )
