小题1:It is my b_________ that the harder we work, the better our life will be.

小题2:___________ (好奇心) drove the little boy to push the door open slowly.

小题3:You can’t leave the school without our teacher’s p___________.

小题4:The shopkeeper knows Alex well. He is a regular c_________ here.

小题5:Brian has a____________ to me for losing my CD, and now we are friends again.

小题6:It is o_______ that he has been waiting here for a long time.

小题7:Foods provided for the old should be easy to _______ (消化).

小题8:After he did some _________ (研究) in the library, he found out the truth.

小题9:What a pity that a boy of 5 _________ (溺死) in the well yesterday.

小题10:Don’t look down upon him. Anyone has his own s_________.

下图是人体呼吸系统组成图，请据图回答问题：

（1）人能嗅到各种气味，是因为    ____   上部黏膜内有接受气味刺激的嗅觉细胞。

（2）既是气体的通道，也是食物的通道的是[ ]   ____   。

（3）痰形成的部位是[ ]   ____    。

（4）完成气体交换的重要场所是[ ]    ____   。