1. 指中午或正午12点，指的是一点时间而不是一段时间，因此表示“在中（正）午”时，用介词 at 而不用 in, during 等。如：
我们中午12点出发。
误：We started in [during] noon.
正：We started at noon.
2. 是不可数名词，注意以下各句 noon 前不用冠词或其他限定词。如：
Snow fell before noon. 午前降了雪。
He stayed until noon. 他呆到中午才走。
He has been working since noon. 他从中午就开始工作了。
Noon is the earliest time I can come. 我最早要到中午才能来。
单词：noon的近义词、反义词、形近词辨析
level/noon/museum/spread/widespread/spray/pray/prayer
记忆：注意拼写的对称性
1. level [5lev(E)l] n. 水平, 水平面, 水准 How can such a boy reach the level of an adult? 这样的一个孩子怎能达到一个成年人的水平？
2. noon [ nu:n ] n. 中午 We have lunch at home at noon. 我们中午在家吃午饭。
3. museum [ mju(:)5ziEm ] n. 博物馆 There is an insect exhibition in the museum. 在博物馆有昆虫展。
4. spread [ spred ] v. 伸展, 展开, 传播 Good news stays at home while bad news spread as if with wings. 好事不出门，坏事传千里。
5. widespread [5waIdspred, -5spred] adj. 分布广泛的, 普遍的 Fortunately, the widespread flu has been put under control. 幸运的是，流传广泛的感冒已经得到了控制。
6. spray [ sprei ] n. 喷雾, 飞沫 vt. 喷射, 喷溅 The water of the fountain sprays in all directions. 喷泉的水向四周喷射。
7. pray [ prei ] v. 祈祷, 恳求 Let’s pray for peace. 我们为和平祈祷吧。
8. prayer [ prZE] n. 祈祷 One evening a week, the family would join together in prayer. 一周一个晚上，家人会聚在一起祈祷。
另类阅读：
In the morning he sprayed pesticide over the flowers of the museum. At noon he spread news of the local people. At night he prayed to improve his level of fame.
与单词：noon 相关的例句或者名人名言
She often reads newspapers at noon .
她常在中午看报。
Checkout is at noon.
退房时间是中午。
※You cannot have two forenoons in the same day. 一日之中不可能有两个上午。
