高三英語Zoology
雖然它們生活的社會環境不同,它們卻都以高級方式交流.【點撥】while連詞,意為"盡管;雖然";其用法大致有以下四種用法:
1.引導時間狀語從句,意為"當……的時候;和……同時",此時的主從句謂語動作同時發生,從句謂語通常是延續性動詞。
e.g. mary watched tv while she ate her supper.
瑪麗邊吃飯邊看電視。
while she was listening to the radio, she fell asleep.
她聽著收音機睡著了。
while引導從句時,如主從句的主語一致,且從句謂語又含有be,則從句主語和be可省略。while后可直接跟現在分詞、名詞、形容詞或介詞短語。
e.g. we are teachers while (we are) serving as students.
我們邊當老師邊當學生。
while (he was) yet a youth, he gained many prizes.
他年輕時就曾多次獲獎。
he caught a cold while(he was) on vacation.
他度假時患了感冒。
2.表示對比或轉折,意為"而;然而"。此時,while一般位于句中。
e.g. some people waste food while others haven't enough.
有些人浪費糧食,然而有些人卻吃不飽。
you like sports, while i prefer music.
你喜歡體育,而我更喜歡音樂。
3.表示讓步,通常位于句首,意為"盡管;雖然"。
e.g. while i agree with your reasons, i can't allow it.
盡管我同意你的理由,但我不能允許這樣做。
while he loves his students, he is very strict with them.
雖然他愛他的學生,可是他對學生們很嚴格。
while (he was) respected, he is not liked.
他雖受人尊敬,但并不被人喜歡。
4.表示條件,意為"只要",其意思和用法相當于as long as。while可位于句首,也可位于句中。
e.g. you don't have to worry while we are here.
只要我們在,你就別著急。
there will be life while there is water and air.
只要有空氣和水,就有生命。
while there is life, there is hope.
留得生命在,不怕沒希望。
5.意為"同時;也"。如:
e.g. while the book is welcomed by scholars, it will make an immediate
appeal to the general readers.
這本書受到學者的歡迎,同時也會引起一般讀者的興趣。
6.意為"趁著"。
e.g. make hay while the sun shines.
曬草要趁陽光好。(諺)
strike while the iron is hot.
趁熱打鐵。(諺)
while the roses are yet in bloom, will you come with me to see them?
趁著玫瑰花還開著,你和我一道去看看好嗎?sometimes they warn each other of danger, and they also communicate simply to keep in touch. 于是它們互相提醒危險,它們交流僅僅是為了保持聯系.【點撥】 warn sb. of sth.“警告某人某事”，不能說 warn sb's sth.。e.g. we warned him of the dangerous bridge，but he didn't believe.我們警告他那座橋危險，但是他不相信。類似這樣的結構用法的動詞還有:一. 表示“通知(inform)；警告(warn)；指責(accuse)；使想起(remind)”等意思的一些動詞。
在這一結構中，of的意思相當于 about。e.g. on the way home my father told me of an accident that took place on his first day at school in mr. crossett's class.