介詞短語是什么,具體的
介詞不能單獨作句子成分,但由介詞和介詞賓語構成的介詞短語卻可以作多種句子成分.現將其用法歸納如下:一、與動詞be連用,充當表語.例如:Li Lei,is it in your right hand?李雷,它在你的右手里嗎?二、充當定語.介詞短語作定語須放在被修飾詞的后面.例如:The book on the desk is mine.書桌上的書是我的.Who\'s the boy in the middle?中間的那個男孩是誰?三、充當狀語,用于修飾動詞或整個句子,常放在句末,也可置于句首.例如:On that day everyone eats mooncakes.在那一天大家都吃月餅.We go to school at seven o\'clock in the morning.我們早上七點去上學.四、充當賓語補足語.例如:They must keep their hands behind their backs.他們必須把手放在他們的背后.到目前為止,我們學過的介詞短語有:at home(在家); at school(在學校); at night(在夜里); at the weekend (在周末); by bus (bike,ship,plane,train)乘公共汽車(自行車、輪船、飛機、火車),in the open air(在戶外),on foot(步行)等.五、關于介詞短語的兩個注意事項:1.注意介詞短語與短語介詞的區別 短語介詞是相當于一個介詞的詞組,它不能單獨作句子成分.如:in front of,at the back of,next to等.介詞短語是由“介詞+賓語”或“短語介詞+賓語”構成的,它可以單獨充當句子成分.如:in the bag,near the door,in front of the house等.2.注意介詞的賓語形式 介詞短語若是“介詞+代詞”結構,要注意其后面的代詞應是賓格,而不能用主格.例如:Who sits behind him?誰坐在他后面?。
介詞短語有哪些
at all(根本), at first(最初), at any cost(以任何代價), at hand(在附近), at once(馬上)。
3. 由by構成的介詞短語,如: by no means(決不), by oneself(獨自), by the way(順便), by all means(一定要), by chance(偶然)。 4. 由from構成的介詞短語,如: apart from(除了), far from(很不), from time to time(不時), from now on(從現在起)。
5. 由in構成的介詞短語,如: in public(在公開場合), in detail(詳細的), in advance(事先), in fashion(流行), in return(作為回報)。 6. 由off構成的介詞短語,如: off balance(失衡), off duty(下班), off the price(減價), off guard(不提防), off one's head(有點發瘋)。
7. 由on構成的介詞短語,如: on average(平均), on business(因公), on the job(上班), on foot(走路), on time(準時)。 8. 由out of構成的介詞短語,如: out of danger(脫離危險), out of hand(缺人), out of reach(不可及), out of debt(還清債務), out of sight(看不見)。
9. 由to, up to, with, within, without構成的介詞短語,如: to the point(中肯), up to date(時髦), with regard to(關于), within range(在范圍內), without delay(毫不拖延)。