【正文】 nese 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B41．The teacher speaks very loudly all the students can hear her.A．so that B．because C．since D．when【答案】A【解析】【詳解】句意：為了讓所有學(xué)生都能聽見她，老師講得非常大聲。A. so that 是固定詞組，引導(dǎo)目的狀語從句時(shí)，表示“以便；為了”，從句中常使用can /could /may /might /will /would /should等情態(tài)動詞或助動詞，因此選A。B. because 意為“因?yàn)椤?；C. since 表示“自……以來，因?yàn)?，由于”；D. when 意為“當(dāng)……時(shí)”。老師大聲說話的目的是讓學(xué)生們都聽到，所以，B、C、D均不符合題意。42．When you are in your school dining hall during lunchtime, you may feel lonely _______ you can find someone to have lunch with.A．if B．unlessC．a(chǎn)fter D．because【答案】B【解析】【分析】【詳解】句意：當(dāng)你在學(xué)校食堂吃午飯的時(shí)候，你可能會感到孤獨(dú)，除非你能找個(gè)人一起吃午飯?？疾檫B詞用法辨析。if如果，unless除非，都表?xiàng)l件；after表時(shí)間，because表原因。本句前后句是條件關(guān)系，可排除CD兩項(xiàng)。根據(jù)句意可知if不合句意，故選B。43．Helen was very rude to me. I refuse to speak to her again __________ she says sorry.A．until B．if C．because D．since【答案】A【解析】【詳解】句意：海倫對我粗魯，我拒絕跟她再次說話，直到她向我道歉為止。考查連詞辨析。until 直到……才；if 如果；because 因?yàn)?；since 自從，既然。結(jié)合句意可知，此句是until引導(dǎo)的時(shí)間狀語從句，故答案選A。44．He didn’t go to school yesterday _______ he was ill.A．because B．because of C．if D．so【答案】A【解析】【詳解】句意：他昨天沒去上學(xué)，因?yàn)樗×恕１绢}的含義是昨天他沒有去上學(xué)，“他病了”應(yīng)該是他沒上學(xué)的原因，because后跟原因從句，because of后跟單詞或短語，if如果后接條件狀語從句，so因此。故選A。45． Can students go online during lessons? They can ________ it is for that lesson.A．ifB．orC．soD．but【答案】A【解析】句意：——學(xué)生可以在課上上網(wǎng)嗎？——如果是為了上課，他們可以上網(wǎng)。考查連詞辨析題。if如果，表?xiàng)l件；or或者，表選擇；so所以，表結(jié)果；but但是，表轉(zhuǎn)折。答句是條件狀語從句，需用if連接。根據(jù)句意結(jié)構(gòu)，可知選A。46．—Betty, do you know if Tony ______ the photo petition?—He will, if he ______ his project on Australia.A．enters。 finishes B．enters。 will finishC．will enter。 finishes D．will enter。 will finish【答案】C【解析】【詳解】句意：貝蒂，你知道托尼是否要參加攝影比賽？他會的，如果他完成了有關(guān)澳大利亞的課題。問句中if引導(dǎo)的是賓語從句，翻譯為是否，前者問的是將來；答語是由if引導(dǎo)的條件狀語從句，所以遵循主將從現(xiàn)的原則，所以if之后用一般現(xiàn)在時(shí)。所以答案選C。47． the journey was tiring，Jeff thought it was worth both the time and the money.A．As B．Since C．Unless D．Although【答案】D【解析】【詳解】句意：雖然旅途很累，杰夫認(rèn)為時(shí)間和金錢都值得。A. As當(dāng)……的時(shí)候；B. Since 自從；C. Unless除非；D. Although盡管。根據(jù)下文Jeff thought it was worth both the time and the ，這里用Although引導(dǎo)。根據(jù)題意，故選D。48．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：我相信夢想在你做之前是不會實(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。49．______ 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。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?！眀ecause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。50．___________ she couldn’t see his face, she could tell by his voice that he was young.A．Unless B．If C．Because D．Though【答案】D【解析】【詳解】句意：雖然她看不見他的臉，但是她能夠通過聲音分辨出他很年輕。A. Unless除非；B. If如果；C. Because因?yàn)椋籇. Though盡管。根據(jù)語境以及上下文，本題考查的是連詞的用法。結(jié)合句意可知，在這里兩個(gè)句子之間存在一個(gè)相反的讓步關(guān)系，though/although/even though雖然；盡管，引導(dǎo)讓步狀語從句，符合句意。故答案選D。