scarf的复数是什么意思 scarf的复数 scarf的复数是什么( 三 )

(5)用于与by连用的表示交通工具、通信工程的名词前。
Are you going there by plane or by ship?
你是乘飞机还是乘船去那里？
(6)系动词turn(变成)后跟单数名词作表语时不用冠词。
His brother has turned writer.
他弟弟已成为一名作家。
(7)在as/though引导的部分倒装句中，“零冠词＋单数名词＋as/though＋主语＋谓语”意为“尽管……但是……” 。
Hero as he is, he has some shortcomings.
尽管他是个英雄，但是他也有一些缺点。
(8)用在“名词＋介词短语”的独立主格结构中。
The teacher came in, book in hand.
老师手里拿着一本书走进来。
2．零冠词用于固定搭配中
at present目前 take part in参加
in peace平静 by chance/accident碰巧
on purpose故意 on second thoughts再一想
ahead of time提前 in advance提前
by law根据法律 by mistake由于差错
under repair处于维修中 lose heart灰心
day and night整日整夜 from morning till night从早到晚
out of control失控 out of work失业
【scarf的复数是什么意思 scarf的复数 scarf的复数是什么】in danger处于危险之中 at risk有危险