代词主格、宾格的使用：用括号里的词填空，注意大小写。

1. Please give                 something to eat .               am hungry . ( I,  me )

2.            come from America and we want to learn Chinese. Please tell          how to learn it ( us, we )

3. Do you want to see                ?             are waiting for you !( they , them )

4. Would you like to call            ?             wants to meet you again .( he, him )

5. Would you like to have dinner with            ? OK, I’d  love  to.          is very kind .( her ,she )  

在“探究小车速度随时间变化的规律”的实验中，得到如图所示的纸带，若小车作匀加速直线运动，打点计时器打点的时间间隔为0.02s，测得s₁="5.00" cm，s₂="1.36" cm，s₃="1.48" cm。那么：AD之间的平均速度V=        m/s,C点的瞬时速度V_C=        m/s,

小车运动的加速度a=     m/s²。