解释下列文中划线字词。

蜀之鄙有二僧：其一贫，其一富。贫者语于富者曰：“吾欲之南海，何如？”富者曰：“子何恃而往？”曰：“吾一瓶一钵足矣。”富者曰：“吾数年来欲买舟而下，犹未能也。子何恃而往！”

语：____；恃：____；买舟：____；犹：____

一个步行者以6.0m/s的速率跑去追赶被红灯阻停的一辆汽车，当他距离汽车18m处时，绿灯亮，汽车以1.0m/s²的加速匀加速起动前进，则（   ）

He is a very i____（有影响的）man in the government and is in an important position.

大船限乘6人，小船限乘4人，38人共租了8条船，都坐满了．租的小船（　　）艘．

阅读短文，回答问题。

    Hello. I'm Peter. I'm a pupil. I go to school and study the boring knowledge(知识) every day now. I hope our school will change in the future. Schools will be different then. They will be under the sea, on high mountains and even in space. Robots will help us find books in the library and do our homework at home. We will use computers in all our lessons. They will help us see dinosaurs and other interesting things. We will have lessons with students from other countries. We will do a lot of things online together. We won't carry books to school. All our books will be on a small computer.