直线y=kx﹣k+1与椭圆$\frac{x^2}{4}+\frac{y^2}{2}=1$的交点个数有____ 个．

    Have you ever seen a horse with toes? Millions of years ago, horses had many toes. They had four toes on each front foot. They had three toes on each back foot. The horses were no bigger than the cats. These small horses lived in the forest. The toes helped the horses run on the soft, wet ground.

    At first, it was very hot in the forest. But the weather changed. It became very cold. Many trees could not live in cold weather. The trees died and fell. Open fields took the place of forests. The sun made the ground dry and hard.

    Horses began to change, too. They began to get bigger. This took a long time. On the dry, hard land, horses needed only their middle toes for running. Their middle toes became hard. After a long time, horses had only one hard toe on each foot. Now we call this hard toe a hoof(蹄子).

二次函数y=（x-2）²+1的图象的顶点坐标是（　　）

下列诗句描述的气候现象，出现在长江中下游地区的是（    ）

在下面一段文字横线处填入语句，衔接最恰当的一项（    ）

    要成为一个创作的艺术家，除了要知道吸收许多知识之外，也要懂得排拒许多知识才行的啊！                                

①因为不尽相同，所以艺术品才会有这样多不同的面貌。

②创作本身原来具有一种非常强烈的排他性。

③在艺术的领域里，我们要找到自己的极致，就需要先明白自己的极限，需要先明白自己和别人不尽相同的那一点。

④一个优秀的艺术家就是在某一方面的表现能够达到极致的人。

⑤而因为要走向极致，所以就不可能完全跟着别人的脚步去走，更不可能在自己的一生里走完所有别人曾经走过的路。