某物体以初速度20m/s水平抛出后，2s末的速度大小是，方向与水平方向的夹角为，

smell, listen, sleep, cover, picnic

小题1:As a ________, you’d better not say a word.
小题2:We will go on a _______ in the mountain. Let’s meet at the school gate.
小题3:Much of the land is ________ by forest.
小题4:On Friday afternoons, many students are ________ after a long week of classe5.
小题5:The ________ of the orange flowers is nice.