The umbrella is a very common object. It keeps the1   and the sun off the people. Most umbrellas can be folded up(折叠) so it is  2 to carry them.

     However, the umbrella has not always been as   3  as it is now. In the past, it was a symbol of importance. Some African countries still use umbrellas in this   4. Someone carries an umbrella and walks behind the king or important person.

     Umbrellas are very old. People in different parts of the world began to   5  umbrellas at different times. The Chinese had them more than 3,000 years ago. From there , umbrellas 6   to India and Egypt. In Greece and Rome,  7 wouldn't use them. They believed umbrellas were only for women.

     England was  8   the first country in Europe where common people used umbrellas against rain. The weather there is very  9  and umbrellas are very useful.

     Everybody uses umbrellas today. The next time you  10   one, thinking that for centuries only great men and women used them, you'll feel you are important people, too.

下面是一个正方体的展开图，哪两个面是相对的？填一填：

1﹣（____ ）；

（____ ）﹣（____ ）；

（____ ）﹣（____ ）．

1947年3月12日，杜鲁门向国会两院联席会议宣读了一份咨文，他认为在世界上任何地区发生社会主义革命都会威胁美国的安全。对此美国必须提供援助，并认为这是美国的伟大责任，随即向希腊和土耳其两国提供了4亿美元的援助。对此理解不正确的一项是

已知F₁、F₂分别是椭圆$\frac{x^2}{4}+\frac{y^2}{3}$=1的左、右焦点，曲线C是坐标原点为顶点，以F₂为焦点的抛物线，过点F₁的直线l交曲线C于x轴上方两个不同点P、Q，点P关于x轴的对称点为M，设$\overrightarrow{F_{1}P}$=λ$\overrightarrow{F_{1}Q}$

（Ⅰ）若λ∈2，4，求直线L的斜率k的取值范围；

（Ⅱ）求证：直线MQ过定点．