任务型阅读 
    My friend, Tom lives a happy life.（1）He usually gets up at 6:00 . Then he goes for a walk. At 7:00 he comes back. He brushes his teeth and takes a shower. （2） Then he eats breakfast. After breakfast, he goes shopping（购物）with his friends. （3）他大约十点半到家。And he cooks lunch. After lunch, he goes to the club. He reads books and plays chess. He eats dinner at home at 6:00 pm. （4）           the evening he likes watching TV. At around 9:00 pm he goes to bed.
根据短文内容，完成下列任务

一个做匀速直线运动的物体，突然受到一个与运动方向垂直的恒力作用时，物体的运动轨迹是（   ）

选出下列对课文解说及有关文学常识的表述，不正确的一项（    ）

已知向量且 // ，则=（  ）

下列句子中，没有语病的一项是（   ）