09 狀語從句及連詞
I.單項填空
1.【2019·江蘇卷·單項填空】23.The doctor shares his phone number with the patients __________ they need medical assistance.
A. if only B. as if C. even though D. in case
【答案】D
【解析】考查狀語從句的連詞。句意：醫生給了病人他的手機號碼，以防病人需要醫療援助。A. if only要是…多好；B. as if好像，彷彿；C. even though即使，儘管；D. in case以備，以防，免得。故選D。
2.【2019·天津卷·單項填空】13.Tom is so independent that he never asks his parents' opinion _________ he wants their support.
A. since B. once C. unless D. after
【答案】C
【解析】考查連詞辨析。句意：湯姆是如此獨立，以至於他從來不徵求父母的意見，除非他想得到他們的支持。since因為；once一旦；unless除非；after在……之後，根據題意，故選C。
4.【2018·天津】4. Let's not pick these peaches until this weekend ___________they get sweet enough to be eaten.
A. ever since B. as if C. even though D. so that
【答案】D
【解析】考查連詞短語詞義辨析及語境理解。句意：讓我們這個週末再摘這些桃子，這樣的話，它們吃起來就變得足夠的甜。A. ever since自那時起；B. as if好像；C. even though儘管；D. so that以便。從句為目的狀語從句，故用so that引導。故選D。
5.【2018·江蘇】29. _______ you can sleep well, you will lose the ability to focus, plan and stay motivated after one or two nights.
A. Once B. Unless C. If D. When
【答案】B
【解析】考查連詞詞義辨析及語境理解。句意：除非你睡得好，否則一兩個晚上之後，你會失去專注、計劃和保持動力的能力。A. Once一旦；B. Unless除非；C. If如果；D. When當……時候。故選B。
6.【2017·北京】28. If you don’t understand something, you may research, study, and talk to other people _______ you figure it out.
A. because B. though C. until D. since
【答案】C
【解析】試題分析：A. because 因為 B. though儘管 C. until 直到 D. since自從。如果你無法理解某個東西，你可能會去研究，學習和他人探討直到你解決為止，根據句意可知選用until，直到，選C。
7.【2017·北京】25. ______ birds use their feathers for flight, some of their feathers are for other purposes.
A. Once B. If C. Although D. Because
【答案】C
【解析】試題分析：A. Once 一旦 B. If 如果 C. Although 儘管 D. Because因為。句意：儘管鳥兒們用羽毛來飛翔，但是他們的一些羽毛還有其他用途。根據語境可知前後之間是讓步關係，故選C。
考點：考查連詞。
8.【2017·北京】22. —Peter, please send us postcards ______ we’ll know where you have visited.
—No problem.
A. but B. or C. for D. so
【答案】D
【解析】A. but 但是 B. or 或者 C. for 因為 D. so因此 句意：Peter，請給我們寄明信片，因此我們就會知道你們去哪遊覽過，根據語境可知前後句之間是因果關係，故用so，選D。
9.【2017· 江蘇】23. Located _______ the Belt meets the Road, Jiangsu will contribute more to the Belt and Road construction.
A. why B. when C. which D. where
【答案】D
【解析】試題分析：考查狀語從句。be located in+地點名詞，位於/坐落某地，where引導的地點狀語從句在此相當於in some place，故選D。句意：位於絲綢之路交匯處的江蘇省將會對“一帶一路”的建設做出更大的貢獻。
10.【2016·北京】27. My grandfather still plays tennis now and then, ________ he’s in his nineties.
A. as long as B. as if C. even though D. in case
【答案】C
【解析】考查狀語從句。句意：即使是九十多歲了，我的爺爺仍然時不時地打打網球。A.as long as只要，引導條件句；B.as if似乎，引導方式狀語從句或表語從句；C. even though即使，引導讓步狀語從句；D.in case以防，引導目的狀語從句。這裡是轉折關係，故選C。
11.【2016·北京】33. I really enjoy listening to music ________ it helps me relax and takes my mind away from other cares of the day.
A. because B. before C. unless D. until
【答案】A
【解析】題目考查原因狀語從句。句意：我非常喜歡聽音樂，因為它能讓我放鬆，使我不去想其它的事情。前後是因果關係，故選A。
12.【2016·江蘇】26.______some people are motivated by a need for success, others are motivated by a fear of failure.
A. Because B. If C. Unless D. While
【答案】D
【解析】考查連詞。連詞because因為；if如果；unless除非，如果...不....；while儘管；然而；當...時；句意：儘管一些人被成功的渴望驅使著，但是其他人卻被失敗的恐懼驅使著前進。根據句意可知上下文之間存在轉折關係，所以使用“while儘管...”連接。故D項正確。
13.【2016·天津】7. ______ the average age of the population increases, there are more and more old people to care for.
A. Unless B. Until C. As D. While
【答案】C
【解析】句意：隨著人口平均年齡的增長，越來越多的老人要照顧。unless除非；until直到；as因為，正如，隨著；while雖然，然而，當……時候。根據語境，故選C。
14.【2016·浙江】5._______online shopping has changed our life, not all of its effects have been positive.
A. Since B. After C. While D. Unless
【答案】C
【解析】句意：儘管網上購物已經改變了我們的生活，單數不是所有的影響都是積極的。While引導讓步狀語從句，意為“儘管，雖然”；since既然，自從；after在……之後；unless除非。故選C。
15.【2015·湖南】24.Video games can be a poor influence if ________ in the wrong hands.
A. to leave B. leaving C. leave D. left
【答案】D
【解析】用作狀語的從句叫狀語從句。狀語從句可置於句首、句末或句中，一般來說，狀語從句都比較完整。但是，在一些狀語從句中存在的省略問題，可以歸納為以下兩點：1. when, while, if, as if, although / though, as, until, once, whether, unless, where等引導的從句中，如果其謂語為be，而主語與主句的主語相同時，則從句的主語和be可省略。有時從句的主語為it時，也可省略it或從句中的有關成分。2. than, as, no matter what /who等後面成分的省略。句意：如果電子遊戲落入一個錯誤的人手中就能夠產生一個不良影響。
16.【2015·北京】25.He is a shy man, ___he is not afraid of anything or anyone.
A.so B. but C.or D. as
【答案】B
【解析】句意：他是一個害羞的人，但是他並不害怕任何事和任何人。A. so因此；B. but但是；C. or或者；D. as作為。根據句意，前後句表示轉折，因此選擇but。
17.【2015·北京】28. You won’t find paper cutting difficult _____you keep practicing it.
A. even if B. as long as C .as if D. ever since
【答案】B
【解析】句意：只要你不斷練習，你不會覺得剪紙很難。A. even though即使，雖然;B. as long as只要；C. as if猶如，好像；D. ever since自從。結合句意，故選B。
18【2015·北京】32. _____the damage is done, it will take many years for the farmland to recover.
A. Until B. Unless C. Once D. Although
【答案】C
【解析】句意：一旦農田被毀壞，將需要許多年的時間才能得以恢復。A. until譯為到……為止，直到……才，在……以前；B. unless譯為如果不，除非；C. once譯為一旦，一經……便；D. although譯為雖然，然而，儘管。結合句意，故選C。
19.【2015·重慶】4. If you miss this chance, it may be years ____ you get another one.
A. as B. before C. since D. after
【答案】B
【解析】As 因為了 before之前；since由於；after之後；句意：如果你錯過這次機會，可能要等幾年的時間才會再有。It be 時間段 before ..表示要。。多麼才會。。，故選B項。
20.【2015·浙江】9. a single world can change the meaning of a sentence, a single sentence can change the meaning of a paragraph.
A. Just as B. Even though C. Until D. Unless
【答案】A
【解析】句意：正如一個單詞可以改變句子的意思那樣，一個句子也能夠改變一個段落的意思。A意為正如， B意為儘管，用於讓步狀語從句， C意為直到， D意為除非。分析逗號前後表達所使用的結構句式是相同的：world 對應 sentence, a sentence 對應 paragraph. 這正好是一種對應，也就是正如的關係，此外，如果把BCD選項代入進去翻譯，可以發現這種翻譯是不正確的。所以答案是選A。
21.【2015·天津】12. We need to get to the root of the problem______ we can solve it.
A. while B. after C. before D. as
【答案】C
【解析】句意：在我們解決問題之前，我們需要找到問題的根源。A. while當……時候，而；B. after在……之後；C. before 在……之前；D. as正如。根據句意可知選C。
22.【2015·四川】6.There is only one more day to go your favorite music group play live.
A. since B. until C. when D. before
【答案】D
【解析】考查連詞。選項A意為自從；選項B意為直到；選項C意為當…時；選項D意為在…之前。此題前一分句意為：還有一天；後一分句意為：你最喜歡的樂隊現場表演。根據句意選擇D，句意為：還有一天你最喜歡的樂隊將會現場演奏。
23.【2015·陝西】20. I believe you will have a wonderful time here you get to know everyone else.
A. though B. as if C. once D. so that
【答案】C
【解析】句意：我相信一旦你瞭解這裡的每個人，你將玩得很愉快。though雖然；as if好像；once一旦；so that為了。所以選C。
24.【2015·福建】31._________the students came from different countries, they got along quite well in the summer camp.
A. While B. Unless C. Since D. Until
【答案】A
【解析】考查連詞辨析。這裡是一個while引導的讓步狀語從句。A.while儘管（引導讓步狀語從句）；B.unless除非（通常用於條件狀語從句）；C.since自從（引導時間狀語從句）；D.until直到…才…（通常用在時間狀語從句中）。結合句意：儘管學生都來自不同的國家，他們在夏令營裡面都相處得很好。故選A。
25.【2015·江蘇】26.It is so cold that you can’t go outside _____ fully covered in thick clothes.
A. if B. unless C. once D. when
【答案】B
【解析】句意：外面太冷了，你不要出去，除非用厚衣服完全裹起來。A項“如果”；B項“除非”；C項“一旦”；D項“當……時候”。“unless fully covered”為“連詞+省略結構”，補充完整為“unless you are”。故選B項。“連詞+省略結構”省略了從句的主語（與主句主語一致）和主語後的動詞be。考生應根據前後句意判斷出前後邏輯關係，然後選擇正確答案。同時，考生要注意歸納這類連詞：when, while“表示時間”；if, unless“表示條件”；once“表示時間或條件”；though/although, even if(though)表示“讓步”。
II.語法填空
1.【2018·全國II】The games my parents taught me where I was a child turned out to be very useful later in my life.
【答案】where改為when
【解析】考查時間狀語從句。根據後面的“…I was a child…”可知,這是一個時間狀語從句,故將where改為when。
2.【2016·全國新課標III】Over time, 45 the population grew, people began cutting food into small pieces so it would cook more quickly.
【答案】as/when
【解析】考查時間狀語從句。句意：隨著人口的增長，人們開始把食物切成小塊，這樣可以煮得快一點，這裡是時間狀語從句，when意為“當……時候”，後跟長動作或短動作，故填as／when。
3.【2016·四川】The mother held the baby in her front paws much the way a human does. 46 it cried, she rocked it back and forth and gave it little comforting pats,
【答案】When/If
【解析】句意：如果或當它哭的時候，她會前後搖動。故填When/If。
4．I think John will make a good monitor, ________ I'd like to vote for him．
【答案】so
【解析】句意：我認為約翰會成為一個好班長，所以我想選他。前後句是因果關係，故填so。
5．My mother is always warning me when I go out, “Don't get off the bus ________ it is running．”
【答案】while
【解析】句意：我出去的時候，媽媽總是警告我：“不要在車還在走的時候下車。” 此處while意為“當……的時候”。
6．I had hardly rung the bell ________ the door was opened suddenly, and my son rushed out to greet me．
【答案】when
【解析】句意：我剛一(幾乎還沒有)按門鈴，門突然就被打開了，我兒子就衝出來迎接我。hardly/scarcely ．．． when，表示“一……就，剛剛……就”。
7．I won't lend you my car ________ you promise you will not drive after drinking．
【答案】unless
【解析】句意：我不會把我的車借給你，除非你保證不會酒後開車。根據句意可知，此處表示“除非”，因此用unless。
8．He had to sell his luxury car, ________ his company was in debt．
【答案】for
【解析】句意：他不得不賣掉自己的豪車，因為他的公司負債了。for “因為”。根據句意可知這裡表示原因，且為補充說明。
9．Kate, run a bit faster, ________ you can catch up with all of your classmates．
【答案】and
【解析】句意：凱特，再跑快一點兒，你就能夠趕上你所有的同學了。本句是“祈使句＋連詞＋陳述句”結構。and表順承關係，故填and。
10．________ the movie star has always been the focus of much media attention, he tries to lead a normal life．
【答案】While/Though/Although
【解析】句意：雖然這個影星一直是媒體關注的焦點，但是他試圖過一種正常的生活。根據題意可知，前後分句是讓步關係， 故填While/Though/Although。
11．You should try to get a good night sleep, ________ much work you have to do．
【答案】however
【解析】句意：無論你有多少工作要做，你應該盡力保證有充足的睡眠。however/no matter how可以引導讓步狀語從句，結構是：however/no matter how＋adj．/adv．＋主語＋謂語。
12．When you read the book, you'd better make a mark ________ you have any question．
【答案】where
【解析】句意：當你讀這本書的時候，你最好在你有問題的地方做好標記。where此處引導地點狀語從句。
13．Relax yourself every day, ________ you'll be too tired to get good grades．
【答案】or
【解析】本句是“祈使句＋連詞＋陳述句”結構。or表示轉折關係，意為“否則”， 故填or。
14．________ students decide which college to go to, they should research the admission procedures．
【答案】Once
【解析】句意：一旦決定了要上哪所大學，學生們應該去查詢學校的錄取程序。once “一旦”。根據句意可知，前後分句之間是條件關係，故填Once。
15．Mr White had no sooner finished the speech ________ the students started cheering．
【答案】than
【解析】句意：懷特老師一完成報告同學們就歡呼起來。hardly ．．． when＝no sooner ．．． than＝scarcely ．．． when “一……就……”。
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