与美国小学生一起学英文第2册 第25期:零

 　　Zero¹ 零

　　Zero means² none³ or nothing. 零表示没有。

　　If you say you have zero sisters, you mean you have no sisters at all. 如果你说你有零个姐妹，意思是你根本没有姐妹。

　　In math, zero is written by the number 0, and it is before +1. 在数学上，零写作数字0，在正数1之前。

　　People wrote⁴ zero for the first time in the 13th century⁵. 人们从13世纪开始使用零。

　　It became⁶ more and more necessary⁷ in math, science, business⁸ and so on. 零在数学、科学、商业等领域中变得越来越必要。

　　Is it zero a number? Yes, it is. 零是数字吗？当然是。

1 zero   

num.零；n.无，最低点

参考例句：

• The teacher put a zero on his paper.老师在他的试卷上打了个零分。
• Our hopes fell to zero.我们的希望完全破灭了。

2 means   

n.方法，手段，折中点，物质财富

参考例句：

• That man used artful means to find out secrets.那人使用狡猾的手段获取机密。
• We must get it done by some means or other.我们总得想办法把它干完。

3 none   

adv.一点也不；prep.没人，毫无；pron.没有人，没有任何东西

参考例句：

• Remember that none is perfect.记住没有任何人是完美的。
• There's almost none left.几乎一个没剩。

4 wrote   

v.（write的过去式）写

参考例句：

• She wrote the music and he wrote the book.她作曲子，他写歌词。
• He wrote back that he was too busy to join us.他回信说他太忙不能参加我们的活动。

5 century   

n.世纪；百年

参考例句：

• As a writer, he really belongs to the 18 th century. 作为一个作家, 他的确属于18世纪。
• We live in the 21st century.我们生活在二十一世纪。

6 became   

v.(become的过去式)成为

参考例句：

• He became a doctor at the age of 27.他27岁时成了一名医生。
• He became a millionaire when he was still young.他还年轻时就成了百万富翁。

7 necessary   

adj.必需的，必要的；n.（pl.）必需品

参考例句：

• If necessary,give me a ring.如果需要，打个电话给我。
• Sleep is necessary to health.睡眠对健康是必要的。

8 business   

n.商业， 买卖， 交易， 生意， 事情， 事物， 营业， 商行

参考例句：

• My father built his business on years of hard work. 我父亲多年奋斗创立了自己的事业。
• We must finish up this business in a day or two. 我们必须在一两天内把这事结束。