问题
填空题
在同一时刻，一杆高为2m，影长为1.2m，某塔的影长为18m，则塔高为______m．
答案
设塔高为x，根据同一时刻同一地点任何物体的高与其影子长的比值相同．
得
=2 1.2 x 18
∴x=30．
∴塔高为30m．
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在同一时刻，一杆高为2m，影长为1.2m，某塔的影长为18m，则塔高为______m．
设塔高为x，根据同一时刻同一地点任何物体的高与其影子长的比值相同．
得
=2 1.2 x 18
∴x=30．
∴塔高为30m．
Denny Crook was a famous photographer. He traveled all over the world, taking pictures for magazines and newspapers, and won many prizes. “I’ll do anything to get a good photo,” he often said. “I’ll go anywhere at any time, even if it is (41).” And he told the (42). He had photos of earthquakes, forest fires, floods and even wars. If something interesting happened, Denny went to photo it. He was a married man and his wife often asked him to take her with him, but he always (43).”I’ll travel for my work, not for (44),” he told her . “You won’t enjoy yourself, and I won’t have (45) to look after you. Sometimes there’s not even anywhere to (46), and I have to sleep outside. I often don’t have a good (47) or a bath for days. You won’t like it.” “Denny, I’m not a child,” his wife didn’t (48). “I can look after myself. Please take me with you the next time you go overseas.” Denny did not say anything, but he (49) about it, and when he was asked to go to Africa he said to his wife, “You can come to Africa with me if you want to. I’ve got to take photos of wild (50) there. It should be interesting and not too uncomfortable.” His wife was very (51), and at first she had a very enjoyable time. Then Denny went to off to (52) some lions to photo. His wife went with him, but before long they became separated. She walked down one path while he walked down the other. Suddenly, Denny heard her (53). He ran back and saw her running toward him. A huge lion was chasing her. Quickly Denny took his camera out of its case and (54) it at his wife and the lion. Then he shouted, “(55), woman! I can’t get you both in the picture!”
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