"半小时"有两种讲法half an hour, a half hour. 而"一个半小时"应讲an hour and a half或one and a half hours."半天"应讲half a day，"半镑"应讲half a pound.但要尽量避免使用half a year，而应用six months；不用half a month, 而用two weeks或fifteen days.
［误］ I had driven about half mile.
［正］ I had driven about half a mile.
［析］ "半小时"有两种讲法half an hour, a half hour. 而"一个半小时"应讲an hour and a half或one and a half hours."半天"应讲half a day，"半镑"应讲half a pound.但要尽量避免使用half a year，而应用six months；不用half a month, 而用two weeks或fifteen days.
单词：fifteen的近义词、反义词、形近词辨析
five/fifth/fifteen/fifty/fire/fine/fir
记忆：
1. five [ faiv ] 五
2. fifth [ fifW ] 第五
3. fifteen [ 5fif5ti:n ] 十五
4. fifty [ 5fifti] 五十
5. fire [ 5faiE ] n. 火，v. 开火，解雇 Hands up, or I’ll fire! 举起手来，否则我开枪了！
6. fine [ fain ] adj. 好的 n. 罚款, 晴天, 精细 vt.罚款, 精炼 Jimmy was fined one hundred dollars for speedy driving.因为超速行车，杰米被罚了一百美元。 格言：Fine feathers make fine birds. 佛靠金装，人靠衣装。
7. fir [ fE:] n. 冷杉, 枞树, 杉木 The fir is an ever green tree.杉木是常青树。
另类阅读：
You may go to the fifth wood with five boys and fell fifteen firs. Remember, fifteen firs, not fifty animals’ fur.
与单词：fifteen 相关的例句或者名人名言
The meeting room had a large table big enough for fifteen people to sit around.
这间会议室有足够大的桌子，足够坐下十五个人。
My son will turn fifteen years old this year.
我儿子今年就要15岁了。
At fifteen she came to Paris "to seek her fortune."
