【甲】世有伯乐，然后有千里马。千里马常有，而伯乐不常有。故虽有名马，祗辱于奴隶人之手，骈死于槽枥之间，不以千里称也。

    马之千里者，一食或尽粟一石。食马者不知其能千里而食也。是马也，虽有千里之能，食不饱，力不足，才美不外见，且欲与常马等不可得，安求其能千里也？

    策之不以其道，食之不能尽其材，鸣之而不能通其意，执策而临之，曰：“天下无马！”呜呼！其真无马邪？其真不知马也！

（选自韩愈《马说》）

    【乙】臣闻古之君人，有以千金求千里马者，三年不能得。涓人^①言于君曰：“请求之。”君遣之。三月得千里马。马已死，买其首五百金，反以报君。君大怒曰：“所求者生马，安事^②死马而捐^③五百金！”涓人对曰“死马且买之五百金，况生马乎？天下必以王为能市马。马今至矣！”于是不能期年^④，千里之马至三。

（选自《战国策·燕策一》）

【注释】①涓人：国君的近侍。②安事：何用。③捐：花费。④期年：满一年。

 (B)

    To be honest, I enjoy music a lot and Tejano music is my favorite．Tejano music was born in Texas．Although it has influences from Mexico and some other Latin American countries，the main influence is from America．

    Like most music around the world，Tejano music mixes many different styles．It combines(结合)folk，country，rock and a bit of the blues．

    I prefer to listen to Tejano music because it makes me feel good．I enjoy dancing to it，too．It's so easy that there is no rule for my friends who want to join me．Some of my classmates also like Tejano music．It is popular with young people．

    I also love other kinds of music．I listen to rock when I'm happy．My favorite rock band is Creed because they sing a lot about their lives and express how they feel in their songs．They sing about their past experiences，their feelings and the way they want their lives to change．I also like heavy metal music．Metallica is my favorite heavy metal band．I usually listen to their music when I am upset．It tells me that．whatever difficulties I meet in life，I must try hard to get the things I want and I should never give up．

    Music influences us all in different ways．What type of music do you like?

下图中人物的说法(     )  

如图表示一个家族中某遗传病的发病情况，已知控制该性状的基因（用H和h表示）位于人类性染色体上．下列有关叙述中，不正确的是（    ）

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