［析］ 在句首的数字要用文字而不要用阿拉伯数字，如数字过大则应放于句中，用阿拉伯数字。如： There are 166 students playing on the ground.
［误］ He became famous around fifty years old.
［正］ He became famous in his fifties.
［析］ in his fifties 50多岁时，而in the fiflies 在50年代。
［误］ There are about two thousands workers in our factory.
［正］ There are about two thousand workers in our factory
［析］ 几千，几百的表达法是基数词加thousand或加hundred,而且均不要加s。这样的单位还有dozen(打)， score (20年)等。
［误］ In the morning there are hundred of old people walking in the park.
［正］ In the morning there are hundreds of old people walking in the park.
［析］ 当表达数百，数千时，要用hundreds of和thousands of 这一结构。
［误］ The class begins at eight a. m.
［正］ The class begins at 8 a. m.
［析］ 与符号或与缩写的字母连用时一定要用数字，如：43%， 67, No.2…
［误］ Twofifth of the books are sold out.
［正］ Twofifths of the books are sold out.
［析］ 分数表示法，分子用基数词，分母用序数词，但分子大于1时，分母要在序数词后加s。
［误］ Tom was born on July eighteen.
[正］ Tom was born on July eighteenth.
［析］ 月日的表达法有美语和英语两种。 美语 July 18 读作 July eighteenth 英语 July 18th 读作 July the eighteenth
［误］ I'll go to school at 7∶３０ a. m. in the morning.
［正］ I'll go to school at 7∶３０ a. m/ at 7∶３０ in the morning.
［析］ a. m 即表达在早上之意，不要再用in the morning.
［误］ The film will begin at three quarters past one.
［正］ The film will begin at one quarter to two.
［析］ 大于30分钟时不要使用past，而要用差多少不到几点的to来表达。
［误］ Three time three is nine.
［正］ Three times three is nine.
［析］ times 此处作为"乘"讲一定要加s。 英语中乘除法表达式如下：
算法 种类 例 句
加法 一般 Five and six is eleven.
正式 Five plus six is (equals) eleven.
减法 一般 Eight take away four leaves (is) four.
Four from Eight leaves (is) four.
正式 Eight minus four equals (is) four.
乘法 一般 Three fours are twelve 3×4=12
正式 Three times four equals (is) twelve.
一般 Two in to four is two.
正式 Four divided by two equals two.
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