【正文】 __ her mother es back and she’d like to enjoy it together.A．until B．when C．a(chǎn)fter【答案】A【解析】考查連詞辨析。句意：星期天羅斯在家做飯。直到她媽媽回家她才吃飯。她喜歡和媽媽一起享用。A表示直到…才，B表示當(dāng)…時(shí)，C表示在…之后。根據(jù)句意，故選A。41．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(huì)感到孤獨(dú)，除非你能找個(gè)人一起吃午飯。考查連詞用法辨析。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。42．I will call you as soon as he______ here.A．a(chǎn)rrive B．will arrive C．a(chǎn)rrives D．a(chǎn)rrived【答案】C【解析】【詳解】句意：他一到這里我就給你打電話。as soon as引導(dǎo)的時(shí)間狀語(yǔ)從句，遵循“主將從現(xiàn)”的原則，也就是當(dāng)主句是一般將來(lái)時(shí)態(tài)時(shí)，從句用一般現(xiàn)在時(shí)態(tài)，從句中的主語(yǔ)he是第三人稱單數(shù)，動(dòng)詞要用三單形式，故答案為C。【點(diǎn)睛】“主將從現(xiàn)”說的是在含有時(shí)間狀語(yǔ)從句和條件狀語(yǔ)從句的主從復(fù)合句中，如果主句的時(shí)態(tài)是一般將來(lái)時(shí)，那么從句要用一般現(xiàn)在時(shí)。時(shí)間狀語(yǔ)從句主要由as soon as, when, until等來(lái)引導(dǎo)，條件狀語(yǔ)從句主要由if, unless來(lái)引導(dǎo)。如：I will tell him about it when he es. 他來(lái)的時(shí)候，我會(huì)告訴他這件事的。If it is fine tomorrow, we will go outing. 如果明天天氣好，我們就去郊游。43． 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)?？疾檫B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(yǔ)從句，需用if連接。根據(jù)句意結(jié)構(gòu)，可知選A。44．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A45． 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。46．You will be late for school________ you don’t get up early.A．but B．if C．a(chǎn)nd D．or【答案】B【解析】【詳解】句意：如果你不早起，你將會(huì)上學(xué)遲到。be late for school上學(xué)遲到；get up起床。but表示前后是轉(zhuǎn)折關(guān)系；and表示前后并列或遞進(jìn)關(guān)系。由此知前后句構(gòu)成“結(jié)果＋條件”的關(guān)系，即“如果你不早起，你將會(huì)遲到。”。故選B。47．Has the meeting begun yet？Not yet． We have to wait everyone is here．A．a(chǎn)nd B．until C．or D．but【答案】B【解析】【詳解】考查連詞用法。句意：—會(huì)議已經(jīng)開始了嗎？—不，還沒有。我們必須等到大家都到齊了。and和；until直到；or或者、否則，but但是。根據(jù)題干可知我們得等到大家都到了，這里表示直到……時(shí)候用until．故選B．48．She didn39。t leave the school __________ she worked out this problem.A．a(chǎn)s long as B．until C．since D．while【答案】B【解析】【詳解】句意“直到她解決了這個(gè)問題他才離開學(xué)?！?。（引導(dǎo)條件狀語(yǔ)從句）；（引導(dǎo)時(shí)間狀語(yǔ)從句）；（引導(dǎo)時(shí)間狀語(yǔ)從句）；……時(shí)候（引導(dǎo)時(shí)間狀語(yǔ)從句）。根據(jù)句意可知，譯為“直到他解決這個(gè)問題他才離開學(xué)?！?。not...until...直到……才，故選B。49．________ I came back home yesterday, my mother was looking ________ a magazine.A．While。 through B．When。 through C．When。 around【答案】B【解析】【詳解】句意：昨天當(dāng)我回到家的時(shí)候，我的媽媽正在瀏覽一本雜志。While當(dāng)…時(shí)候，引導(dǎo)時(shí)間狀語(yǔ)從句，從句中的謂語(yǔ)動(dòng)詞應(yīng)該是延續(xù)性的；When當(dāng)…時(shí)候，引導(dǎo)時(shí)間狀語(yǔ)從句，從句中謂語(yǔ)動(dòng)詞可以是延續(xù)性的，也可以是瞬間性的；through穿過，通過；around周圍。第一個(gè)空后came back是瞬間性動(dòng)詞，故不能用while引導(dǎo)，排除A。look through瀏覽；look around向四周看，根據(jù)句意可知應(yīng)該是“瀏覽雜志”，故選B。50．She is so pleased with _____ he has done _____ she keeps praising him.A．what。 that B．that。 what C．that。 that【答案】A【解析】【詳解】句意：她對(duì)他所做的事情感到如此高興以至于她一直表?yè)P(yáng)他。根據(jù)句子結(jié)構(gòu)可知，第一個(gè)空是賓語(yǔ)從句，作be pleased with的賓語(yǔ)，從句中done后缺少賓語(yǔ)，故用what引導(dǎo)，that引導(dǎo)賓語(yǔ)從句時(shí)，在從句中不作成分；第二個(gè)空考查的是so…that“如此……以至于……”這個(gè)句型，應(yīng)用that。故選A。