來(lái)源:網(wǎng)絡(luò)資源 2023-02-17 19:23:22
難點(diǎn)——as when while的辨析
as when while都表示主、從句動(dòng)作同時(shí)發(fā)生,三者差異如下:
表示“一邊。。。一邊"的意思
as 強(qiáng)調(diào)兩個(gè)動(dòng)作同時(shí)進(jìn)行,并表示對(duì)比時(shí)
用于發(fā)生時(shí)間較段時(shí)
when 1、還可以表示從句動(dòng)詞的動(dòng)作在主幾句動(dòng)詞的動(dòng)作"之前 "或"之后"發(fā)生。
2、when=and then; at that moment (正在那個(gè)時(shí)候)
while 1、用于時(shí)間較長(zhǎng)時(shí)
2、 強(qiáng)調(diào)兩個(gè)動(dòng)作同時(shí)進(jìn)行,并表示對(duì)比時(shí)
有時(shí)這三個(gè)連詞可以互換,有時(shí)不可以。
lit was raining hard when (as) i got there.
我到那里時(shí),正在下大雨。 ( 動(dòng)作同時(shí)發(fā)生,when可換為as, 但不能換為while,因?yàn)間et是點(diǎn)動(dòng)詞.)
lwhen i had read the article, he called me.
我看完這篇文章之后,她給我打了電話。( 從句動(dòng)作發(fā)生在主句之前,注意時(shí)態(tài)表達(dá),只能用when )
lwhen i got to the cinema, the film had begun.
(當(dāng))我到了電影院時(shí),電影已經(jīng)開演了。(從句的動(dòng)作發(fā)生在主句之后,只能用when,并要注意時(shí)態(tài))
lhe was about to leave, when the telephone rang.
他正要離開,忽然電話響了。( 此時(shí)不能放在句首。主句動(dòng)詞一般表達(dá) “正在” “即將”.
while, as不能代替 ) 考點(diǎn)
lshe thought i was talking about her daughter, while, in fact, i was talking about my daughter.
他以為我在談她女兒,然而,實(shí)際上在談?wù)撐遗畠骸?表轉(zhuǎn)折,對(duì)比,when, as都不能代替它) 考點(diǎn)
lwhile the alien was buying a souvenir, the girl called the police.
外星人買紀(jì)念品時(shí),那女孩給警察打了電話。(表示主句,從句的動(dòng)作同時(shí)發(fā)生,while后引導(dǎo)的狀語(yǔ)從句的動(dòng)詞必須是延續(xù)動(dòng)詞不能是點(diǎn)動(dòng)詞,因?yàn)樗硎据^長(zhǎng)時(shí)間)考點(diǎn)
lmother was worried because little alice was ill, especially as (when/ while) father was away.
媽媽擔(dān)心,因?yàn)樾?ài)麗絲病了,特別是他父親不在家的時(shí)候。(此時(shí)as ,when, while可通用)
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