A: I once heard someone shout, “Look out.” I put my heard out of the window and a bucketfu

A: I once heard someone shout, “Look out.” I put my heard out of the window and a bucketful water fell on me. It seems that “Look out” may mean “Don’t look out”.
B: I was once on a ship and heard the captain shout, “All hands on deck(甲板).” I put my hands on the deck and someone walked on them.
C: I once called early on an English friend and the servant who came to the door said, “He’s not up yet. Come back in half an hour.” When I went again for him, she said, “He’s not down yet.” I said, “If he’s neither up nor down. Where is he?”
【小题1】. In the dialogue the phrase “Look out” actually means “    ”.A．Don’t look outB．Look out for the waterC．Be carefulD．Look everywhere【小题2】. The underlined word “them” in the dialogue means     .A．my feetB．my handsC．the shipD．the deck【小题3】. “He is not up” and “He is not down” in the dialogue actually means         .A．He doesn’t stand up and doesn’t lie down B．He doesn’t e up and doesn’t go downC．He hasn't turned up and hasn't turned downD．He hasn't got up and he hasn't e downstairs【小题4】. The writer writes the dialogue to tell us that     .A．English is very interesting if you like it and keep on using itB．it is impossible to learn English very well in a short timeC．language keeps on developing and changing all the timeD．words and phrases may have different meanings in different situations..C