【正文】 詞，如果，引導(dǎo)條件狀語從句；B. Although連詞，雖然、即使，引導(dǎo)讓步狀語從句；C. Until連詞，直到，引導(dǎo)時(shí)間狀語從句。D. Because連詞，因?yàn)?，引?dǎo)原因狀語從句。根據(jù)前后文之間的“讓步”關(guān)系可知，選用although。故選：B。41．She stopped talking her mother came into the room.A．a(chǎn)s soon as B．unless C．though【答案】A【解析】句意：她媽媽一進(jìn)到房間里，她就停止了說話。A. as soon as 一就； B. unless 除非； C. though盡管；這里是考察連詞，根據(jù)She stopped talking 和her mother came into the ，可知是媽媽一進(jìn)到房間里，她就停止了說話；故選A42．I39。m sure dreams don39。t work you do.A．if B．until C．when D．since【答案】B【解析】【詳解】句意：我相信夢(mèng)想在你做之前是不會(huì)實(shí)現(xiàn)的?？疾檫B詞辨析。if如果，表?xiàng)l件；until直到，表時(shí)間，多與not連用表示“直到……才”；when什么時(shí)候，表時(shí)間；since自從，用于表示一段時(shí)間。本句是“not …until”結(jié)構(gòu)，根據(jù)句意結(jié)構(gòu)和語境，可知選B。43．______ many children like KFC, I think they’d better try not to eat it too often.A．Because B．When C．Although D．If【答案】C【解析】考查從句的知識(shí)。句意“盡管很多孩子喜歡吃KFC，單數(shù)我認(rèn)為他們最好不要經(jīng)常吃。”because引導(dǎo)原因狀語從句；when引導(dǎo)時(shí)間狀語從句；although引導(dǎo)讓步狀語從句；if引導(dǎo)條件狀語從句。題目表示的是讓步。故選C。44．You39。d better take the map with you you won39。t get lost．A．so that B．a(chǎn)s soon as C．now that D．a(chǎn)s long as【答案】A【解析】【詳解】句意：你最好帶上地圖,這樣你就不會(huì)迷路?？疾檫B詞短語辨析。A. 以便于，表目的；B. 一……就，表?xiàng)l件；C. 既然，表原因；D. 只要，表?xiàng)l件。根據(jù)題干可知你最好帶上地圖的目的是為了不會(huì)迷路，本句是so that引導(dǎo)的目的狀語從句，故選A。45．He was so busy preparing for the high school entrance exam that .A．he had enough time to watch football matches every dayB．he was free enough to go shopping onlineC．he had no time to do sports every day【答案】C【解析】【詳解】句意：他忙于準(zhǔn)備高中入學(xué)考試，以至于他每天都沒有時(shí)間做運(yùn)動(dòng)?？疾榻Y(jié)果狀語從句。A. 他每天有足夠的時(shí)間看足球比賽；B. 他有足夠的時(shí)間去網(wǎng)上購物；。本句是“so…that”結(jié)構(gòu)，表示“如此……以至于……”，引導(dǎo)結(jié)果狀語從句；根據(jù)“He was so busy preparing for the high school entrance exam”可知沒有時(shí)間娛樂、購物或做運(yùn)動(dòng)，A、B兩項(xiàng)不合句意，故選C。46．—Ling ling, you39。ll feel sleepy tomorrow _______ you go to bed early.—OK, Mom. I’ll go to bed at once.A．if B．unless C．though D．because【答案】B【解析】【詳解】句意：——玲玲，如果你不早點(diǎn)睡覺，明天你會(huì)感到困的?！玫?媽媽。我馬上去睡覺?？疾檫B詞辨析。A. if如果，引導(dǎo)條件狀語從句；B. unless如果不、除非，相當(dāng)于if not，引導(dǎo)條件狀語從句；C. though雖然、盡管，引導(dǎo)讓步狀語從句；D. because因?yàn)?，引?dǎo)原因狀語從句。通過分析主從句之間的邏輯關(guān)系可知應(yīng)該選擇引導(dǎo)條件狀語從句的從屬連詞if或unless，再根據(jù)句子所表達(dá)的含義“如果不早點(diǎn)睡，明天就會(huì)感到困”可知unless符合語意，排除if；故答案選B。47．I think you’ll miss the train ________ you hurry up.A．if B．a(chǎn)nd C．unless【答案】C【解析】【詳解】句意“除非你快點(diǎn)，否則你將錯(cuò)過這個(gè)火車”。（引導(dǎo)條件狀語從句）；（表示并列）；（引導(dǎo)條件狀語從句）。根據(jù)句意可知，表示“除非你快點(diǎn)”，故選C。48．Wedidn39。tcutthecake______Amymadeawish． A．because B．until C．if【答案】B【解析】【詳解】句意：直到艾米許了愿，我們才切蛋糕。A. because因?yàn)?；B. until直到；C. if如果。didn’t是did not的縮寫。not until直到……才。結(jié)合句意可知，答案為B。49．Remember to keep the dog on a leash （狗鏈）________ you walk it, honey!Sure. I won’t let it hurt others.A．until B．a(chǎn)fter C．while D．since【答案】C【解析】【詳解】句意“寶貝，當(dāng)你遛狗時(shí)記得給狗拴上鏈子。好的，我不會(huì)讓他傷害其他人”?！牛ㄒ龑?dǎo)時(shí)間狀語從句）；B. 在……之后（引導(dǎo)時(shí)間狀語從句）；……時(shí)候（引導(dǎo)時(shí)間狀語從句）；（引導(dǎo)時(shí)間狀語從句）。根據(jù)句意可知，譯為“當(dāng)遛狗時(shí)”，故選C。50．My grandfather does Chinese Kung Fu every day _________ he is over eighty.A．since B．though C．until【答案】B【解析】句意：我爺爺每天練中國功夫，盡管他80多了。A. since 自從，因?yàn)椋? B. though盡管； C. until直到；根據(jù)My grandfather does Chinese Kung Fu every day和he is over ,盡管；故選B