【正文】 e little progress, but he didn39。根據(jù)句意，應(yīng)將If改為Although或Though。全國卷Ⅲ)Everyone was silent, waiting to see who would be called upon to read his and her paragraph aloud． __and→or__解析：考查連詞?！白闱蚵湎聛怼迸c“打到我”兩個(gè)動(dòng)作是順承關(guān)系，不是轉(zhuǎn)折關(guān)系。此處前后應(yīng)是轉(zhuǎn)折關(guān)系。2．(2020全國卷Ⅱ)Corn uses less water __than__ rice and creates less fertilizer(化肥) runoff． 解析：考查連詞。“so．．．that．．．”意為“如此……以至于……”，引導(dǎo)結(jié)果狀語從句。5．(新課標(biāo)全國Ⅰ)But the river wasn39。故填When/As。句意：他們把自己的藏品留在家里，直到收藏變得太大或者自己去世，然后這些藏品被捐給一家博物館。我們不妨做如下改動(dòng)：I39。【典例2】　 —How long do you think it is __since__ he arrived here?—No more than half a year，I believe．解析： “It is＋時(shí)間段＋since sb．did sth．”意為“自從某人做某事到現(xiàn)在有多久了”，為固定句型。(2)在虛擬條件句中連詞if的省略。While in Beijing，I paid a visit to the Summer Palace．在北京時(shí)，我參觀了頤和園?？键c(diǎn)七方式狀語從句(as，as if，as though)The old lady treats the boy as if he were her own son．這位老太太對(duì)待這個(gè)男孩就像他是她自己的兒子似的。 特別提示：條件狀語從句常用一般現(xiàn)在時(shí)代替一般將來時(shí)。now that則用于已成事實(shí)的原因作為前提。t start the lesson until the pupils settled down．等學(xué)生們安靜下來后，她才開始上課。(2)since意為“自……以來”，常用句式：It is/ has been＋一段時(shí)間＋ since從句(常用過去時(shí))。(4)sb．had just done sth． when．．．某人剛做完某事，這時(shí)……I had just finished sweeping the floor when the telephone rang．我剛剛掃完地，這時(shí)電話鈴響了。ll regret．抓住這次機(jī)會(huì)，否則你會(huì)后悔的。He must have been caught in the rain，for he is wet all over．他肯定被雨淋了，因?yàn)樗麥喩矶紳窳恕irst，my English is very good and I39。(2)名詞詞組＋and＋陳述句(名詞詞組相當(dāng)于一個(gè)條件狀語從句，其中常含有more，another等詞)。ll break down sooner or later．多吃健康食品，不然你的身體遲早會(huì)垮掉。as“隨著……”，常與延續(xù)性動(dòng)詞連用，從句動(dòng)作與主句動(dòng)作同時(shí)或幾乎同時(shí)發(fā)生As he grew older，he became less active．隨著他逐漸長大，他變得不那么活潑了。3．till/until的用法till/until用于肯定句表示“直到……為止”，其主句謂語動(dòng)詞必須為延續(xù)性動(dòng)詞；not．．． until/till．．．表示“直到……才……”，not所在的主句的謂語動(dòng)詞必須為非延續(xù)性動(dòng)詞。I had hardly got to the office when my wife phoned me to go back home at once．我剛到辦公室，妻子就打電話讓我回家?？键c(diǎn)四結(jié)果狀語從句(so．．．that．．．，such．．．that．．．，so that) 1． He earned so little money that he couldn39。while引導(dǎo)讓步狀語從句時(shí)，一般置于句首。特別提示： 注意兩種特殊的表示比較的結(jié)構(gòu)：①the＋比較級(jí)．．．，the＋比較級(jí)．．．結(jié)構(gòu)。Though (it was) cold，he still wore a shirt．雖然天氣冷，但他仍然穿一件襯衫。Had you e(＝If you had e)yesterday，you would have met her．如果你昨天來，你就見到她了。m writing to apply for the position．如果我們把意義相關(guān)的這兩個(gè)句子用適當(dāng)?shù)倪B詞連接起來，可得到下面的句子：I believe I am fit for it, so I39。2．狀語從句成分殘缺(誤)Please close the doors and windows before leave the classroom．(正)Please close the doors and windows before you leave the classroom．由于受漢語的干擾，第一句中狀語從句中漏掉了主語。2．(2020根據(jù)句意邏輯可知，此處為轉(zhuǎn)折關(guān)系，句意：我工作不是因?yàn)槲也坏貌蛔?，而是因?yàn)槲蚁胱觥９侍頽or。天津卷)Tom is so independent that he never asks his parents39。故填than。此處是指“直到”油燒熱，應(yīng)使用until/till引導(dǎo)時(shí)間狀語從句，故將unless改為until/till。新課標(biāo)卷Ⅲ) In order to make sure all of us are in good health, and she makes specific plans for us．__去掉and__解析：考查簡單句。全國Ⅱ卷)When I studied chemistry at high school, I reconsidered my goal or decided to be a doctor．__or改為and__解析：考查連詞。8．(全國卷Ⅰ)Before getting into the car, I thought I had learned the instructor39。14．(新課標(biāo)全國Ⅰ)In fact, he even scared my classmates away during they came over to play or do homework with me．__during→when__解析：句中during為介詞，不可以連接兩個(gè)并列的句子，根據(jù)邏輯關(guān)系，后一個(gè)分句應(yīng)為when引導(dǎo)的時(shí)間狀語從句。解析：1．句意：我的同班同學(xué)Michael上高中以后學(xué)習(xí)非常努力。故填as/though。由前后兩個(gè)動(dòng)作發(fā)生的先后順序可知填before。Ⅳ．短文改錯(cuò)(202118