Do you like drinking Coke? As a symbol of American culture, Coca-Cola is liked by many people, especially young people all around the world. But from now on, perhaps it will be hard for students in the US to get it on campus. A new agreement will end almost all sales of high-sugar fizzy drinks in US schools. The agreement allow only unsweetened juice, low-fat milk and water in primary and middle school vending machines(自动销售机) and cafeterias. Former American president Bill Clinton helped the American Heart Association and the beverage industry(饮料业) to come up with the agreement. He suffered from a weight problem and has had a heart operation since leaving the White House. He takes the agreement as “a bold step forward in the struggle to help 35 million young people lead healthier lives”.
    Rising childhood obesity(肥胖) has become a big problem in America. A federal report noted that obesity has tripled among teenagers in the past 25 years. It called for new limits on the marketing of junk food to children. Soda is a particular target because of its caloric content and popularity among children.
    Britain has already taken similar steps to fight obesity. A recent study shows that people in the UK are much healthier than the people in the US. However, it's better late than never. Now American schools are trying to make new rules to guide the students to choose healthy drinks. American schools say goodbye to Coca-Cola.

课外阅读。

芭蕉和太阳花

　　春天的帷幕刚刚落下，夏天就像一个追不急待的孩子，接种而来。喝饱春雨的芭蕉，借着夏目的阳光茁壮成长，又宽又大的芭蕉叶在风中摇曳，发出“沙沙沙”的声音，成了人们眼里一道靓丽的风景。

　　一日，芭蕉偶而低头，瞧见了自己脚跟旁那一片不起眼的星星点点细碎的太阳花。“小家伙，"芭蕉不屑一顾地说到，“你倒是乐得逍遥，竟躲在我脚下乘凉。”太阳花面对芭蕉，一声不吭，只是努力吸收着勉强(miǎn qiǎng　miǎn qiáng)透过芭蕉叶的阳光。

　　终于，寒冷的北风吹走了最后一片秋叶。芭蕉叶枯萎了，枯黄的叶子禁经 (jīng jīn)不起风吹雨打，折(shé　zhé)的折，破的破，东倒西歪，全没有了往日的风采。然而芭蕉脚下的太阳花依旧郁郁葱葱，生机盎然，迎霜傲雪，以自己的一点翠绿点缀着那了(le liǎo)了无生趣的冬季。

西非黑人文明的最高体现是它的雕刻艺术。下列对它的雕刻艺术的说法不正确的是(    )

短周期主族元素X、Y、Z、W原子序数依次增大，其中只有Y、Z处于同一周期且相邻，Z是地壳中含量最多的元素，W是短周期中金属性最强的元素．下列说法正确的是（　　）