【正文】 ________ you won’t get lost.A．a(chǎn)s long as B．a(chǎn)s soon as C．now that D．so that【答案】D【解析】【詳解】句意：你最好帶上這張地圖，目的是為了不迷路?？疾檫B詞辨析。A. as long as只要，引導(dǎo)條件狀語從句；B. as soon as一……就……，引導(dǎo)時(shí)間狀語從句；C. now that既然，表原因；D. so that以便，引導(dǎo)目的狀語從句或結(jié)果狀語從句。根據(jù)句意語境，帶著地圖的目的就是防止迷路，本題是目的狀語從句，故選D。42．Nobody believes a 92yearold could run a marathon she passed the finishing line. People of all ages can challenge themselves.A．if B．since C．until【答案】C【解析】【詳解】句意：直到她通過終點(diǎn)線，沒有人相信一個(gè)92歲的老人能夠跑馬拉松。本題考查連詞的用法。本題考查固定短語not…until直到……才……句式。各種年齡的人都可以挑戰(zhàn)自己。故選C。43．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B44．— What were you doing ______ I knocked at the door?— I was sleeping.A．unless B．onceC．when D．while【答案】C【解析】【詳解】試題分析：句意：－我敲門時(shí)，你在做什么？－我在睡覺。A．unless如果不，除非；引導(dǎo)條件狀語從句；B．once一旦……，引導(dǎo)條件狀語從句；C．when當(dāng)……時(shí)，表示兩個(gè)動(dòng)作同時(shí)發(fā)生，主句一般使用過去時(shí)，從句使用過去進(jìn)行時(shí)；D．while當(dāng)……時(shí)，表示兩個(gè)動(dòng)作同時(shí)發(fā)生，后跟延續(xù)性動(dòng)詞，從句一般使用進(jìn)行時(shí)態(tài)，表示一段時(shí)間。本題表示“當(dāng)……時(shí)”，knock是非延續(xù)性動(dòng)詞，故選C?？键c(diǎn)：考查連詞辨析。45．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?？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。46． Talk to your teacher and you will get help ________ you have a problem.A．unless B．ifC．until D．so【答案】B【解析】試題分析：unless除非，如果不； if是否，如果；until直到；So因此。句意：如果你有問題，給你的老師說說，你就會(huì)得到幫助。故選B?？键c(diǎn)：考查連詞辨析47． Square Dancing is good exercise for the old, sometimes it makes a lot of noise.A．IfB．AlthoughC．UntilD．Because【答案】B【解析】【詳解】句意：雖然廣場舞對老年人來說是很好的運(yùn)動(dòng)，但有時(shí)也會(huì)制造很大的噪音。A. If連詞，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)椋龑?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。48．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。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)間狀語從句，從句中的謂語動(dòng)詞應(yīng)該是延續(xù)性的；When當(dāng)…時(shí)候，引導(dǎo)時(shí)間狀語從句，從句中謂語動(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．Our world will get better and better each of us lives a greener life.A．before B．if C．though D．until【答案】B【解析】試題分析：句意：如果我們每一個(gè)人都過更綠色的生活，那么我們的世界將會(huì)變的越來越好。A. before在……之前，引導(dǎo)時(shí)間狀語從句；B. if 如果，引導(dǎo)條件狀語從句；C. though 盡管，雖然，引導(dǎo)讓步狀語從句；D. until直到……引導(dǎo)時(shí)間狀語從句。結(jié)合句意，故選B?？键c(diǎn)：考查連詞的用法。