已知△ABC,求作一点P,使P到∠A的两边的距离相等,且PA=PB.下列确定P点的方法正确的是(   )

Make full use of your time      you can achieve what you desire.

已知y与x+1成正比例，当x=1时，y=3，求y与x的函数关系式．

想一想，说一说。

在春天还有什么醒了？

醒了的动物有：____。

醒了的植物有：____。

完形填空
    Space travel 1 exciting, doesn't it? Now if you have enough money, you can go to space to see our2.You can stay in space for a few days and 3some special food which is for astronauts.
    In the future, space travel may be more 4. People can travel in space and reach other 5. Today, if you want to go to Mars(火星), how 6do you think it will take? That will be a long trip. Even in the best spaceship, it will7 about one year.
    In the 8, that will not be a problem. Spaceships can travel very 9 Perhaps we 10 use the spaceships at all. We may 11 the wormhole(虫洞）。It is like a tunnel(隧道). Once we get 12 the tunnel, we will arrive at another place far away from the earth. It may take just a few 13.
    14develops(发展)very fast. We believe that one day in the future, the dream of traveling from one star to another will 15.