【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”兩個動作是順承關(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：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，我參觀了頤和園。考點七方式狀語從句(as，as if，as though)The old lady treats the boy as if he were her own son．這位老太太對待這個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)在時代替一般將來時。now that則用于已成事實的原因作為前提。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＋一段時間＋ since從句(常用過去時)。(4)sb．had just done sth． when．．．某人剛做完某事，這時……I had just finished sweeping the floor when the telephone rang．我剛剛掃完地，這時電話鈴響了。ll regret．抓住這次機會，否則你會后悔的。He must have been caught in the rain，for he is wet all over．他肯定被雨淋了，因為他渾身都濕了。First，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垮掉。as“隨著……”，常與延續(xù)性動詞連用，從句動作與主句動作同時或幾乎同時發(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”，其主句謂語動詞必須為延續(xù)性動詞；not．．． until/till．．．表示“直到……才……”，not所在的主句的謂語動詞必須為非延續(xù)性動詞。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，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．．．，the＋比較級．．．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：我工作不是因為我不得不做，而是因為我想做。故填nor。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，不可以連接兩個并列的句子，根據(jù)邏輯關(guān)系，后一個分句應(yīng)為when引導(dǎo)的時間狀語從句。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。由前后兩個動作發(fā)生的先后順序可知填before。Ⅳ．短文改錯(202118