從一道高考題聚焦take的用法

1、學(xué)習(xí)必備歡迎下載從一道高考題綜述while 的用法看下面一道高考題：-Im going to the post office._youre there, can you get me some stamps?A. As B. While C. Because D. If對(duì)連詞的用法考查在每年高考題中均有涉及。Because 引導(dǎo)原因狀語(yǔ)從句，If 引導(dǎo)條件狀語(yǔ)從句，按題干提供的情景均不可取。 While 和 As 都能引導(dǎo)時(shí)間狀語(yǔ)從句，極易混淆。As 一般 強(qiáng)調(diào)主句謂語(yǔ)動(dòng)詞與從句謂語(yǔ)動(dòng)詞動(dòng)作的同時(shí)性，而 While 除可表示同時(shí)性外，還含有一個(gè)動(dòng)作在另一個(gè)動(dòng)作正在進(jìn)行或持續(xù)過(guò)程中的某一時(shí)刻發(fā)生

2、。再?gòu)念}干所提供的情景判斷，就可知道 B 為最佳答案。while 的用法可從下述幾點(diǎn)理解與運(yùn)用。、while 意為當(dāng)時(shí)候,指一段時(shí)間，不能用來(lái)表示一個(gè)時(shí)間點(diǎn)。While the discussi on was still going on, George came in.來(lái)。當(dāng)討論還在進(jìn)行時(shí)，喬治走了進(jìn)、while 意為而撚而,表示轉(zhuǎn)折。Therere plenty of rain in the southeast, while theres little in the northeast.足,而西北部則很少下雨。東南部雨量充、while 意為雖然；盡管,表示讓步。While I admit

3、his good poin ts, I can see his shortco mings.能看到他的缺點(diǎn)。盡管我承認(rèn)他的優(yōu)點(diǎn)，但我還是學(xué)習(xí)必備歡迎下載學(xué)習(xí)必備歡迎下載四、while 意為只要,表示條件。We can surely overcome these difficulties while we are closely un ited.只要我們緊密地團(tuán)結(jié)一致，一定能克服這些困難。五、while 從句中的省略。當(dāng) while 從句中的主語(yǔ)與主句的主語(yǔ)一致，且含有 be 的某種形式時(shí),從句中的主語(yǔ)連同 be 可同時(shí)省略。While liste ning to the radio, she

4、fell asleep.她在聽收音機(jī)時(shí)睡著了。While in Lon do n, he studied music and pai ntin g.在倫敦時(shí)，他學(xué)習(xí)音樂(lè)和繪畫。六、while 可用作名詞，意為一會(huì)兒；一段時(shí)間。作名詞用時(shí)，主要用于短語(yǔ)中：after a while 過(guò)了一會(huì)兒; all the while 一直，始終; a short / littlewhile ago 剛才 ; once in a while 偶爾，間或 ; wait / rest(for) a while 等 / 休息一會(huì)兒。I have nt seen her for a long while.我好久沒(méi)有

5、看見(jiàn)她了。Where have you bee n all this while?這一陣子你到哪去了He usually goes to work by bike, but once in a while he goes by bus.但偶爾也乘公共汽車。他通常騎自行車上班I looked everywhere for the letter, but it was in my pocket all the while.我到處找那封信卻不知它一直在我口袋里。七、while 與 when 以及 as 之間的區(qū)別。學(xué)習(xí)必備歡迎下載學(xué)習(xí)必備歡迎下載1.當(dāng)從句中的謂語(yǔ)動(dòng)詞是持續(xù)性的動(dòng)作時(shí)，我們可以用wh

6、ile, when 或 as。While / When / As I was walk ing dow n the street, I no ticed a police car in front of the bank. 我順著馬路往前走時(shí)，發(fā)現(xiàn)銀行門前停著一輛警車。2.當(dāng)從句中的謂語(yǔ)動(dòng)詞表示瞬間動(dòng)作時(shí)，不可用 while。He was on the point of leavi ng whe n some one kno cked at the door.他正要走，這時(shí)有人敲門。3.如果談?wù)搩蓚€(gè)長(zhǎng)動(dòng)作，最常用的是 while。While Joh n was sitt ing bit ing his n ails, I was work ing out a pla n to get us home.約翰坐在那里咬指甲時(shí)，我想出了一個(gè)回家的辦法。不過(guò)，as 是可以用來(lái)說(shuō)明兩種正在發(fā)展或變化的情況的，這時(shí) as 引導(dǎo)一個(gè)持續(xù)性的動(dòng)作，主句中的動(dòng)作與之同時(shí)進(jìn)行。As we talked on, he got more and more excited.我們繼續(xù)往下談的時(shí)候，他越來(lái)越興奮。4.如果表示兩個(gè)短動(dòng)作或事件同時(shí)發(fā)生，最常用的是 as 或just as,也可用 when。Just as he ca