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t 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(wèn)題,給你的老師說(shuō)說(shuō),你就會(huì)得到幫助。故選B??键c(diǎn):考查連詞辨析24.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(guó)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B25.I think he’s been drinking, _________ I’m not pletely sure.A.if B.though C.until D.a(chǎn)s【答案】B【解析】if “如果、是否”;though “雖然;盡管”;until是“直到……才……”;as “由于、因?yàn)椤?。由上句“我認(rèn)為他一直飲酒”和下句“我不能完全確定”可知,兩者是讓步關(guān)系,用though引導(dǎo)讓步狀語(yǔ)從句。句意為“我認(rèn)為他一直在飲酒,盡管我不恩給你完全確定?!究键c(diǎn)】考查連詞意義辨析。26.Today’s young people can’t live without smart phones. They keep their hands on the phones whenever they go, even while they_______meals.A.had B.will haveC.a(chǎn)re having D.were having【答案】C【解析】【詳解】句意:今天的年輕人沒(méi)有智能手機(jī)就活不下去。無(wú)論何時(shí)甚至在吃飯時(shí)他們都手里拿著手機(jī)??疾閯?dòng)詞時(shí)態(tài)。while表示一段時(shí)間,后面使用進(jìn)行時(shí)態(tài),主句是一般現(xiàn)在時(shí),可知從句使用現(xiàn)在進(jìn)行時(shí);故答案C。27.We can39。t cross the road the traffic lights turn green.A.until B.if C.while D.a(chǎn)s【答案】A【解析】【詳解】句意:我們要等交通信號(hào)燈變綠了才能過(guò)馬路。考查從屬連詞。A. until直到;B. if如果;C. while當(dāng)……時(shí);D. as隨著。根據(jù)前文的can’t,可知構(gòu)成not…until…引導(dǎo)的時(shí)間狀語(yǔ)從句,表示“直到……才……”,故選A。28.We didn’t start our discussion __________ everybody arrived.A.since B.if C.while D.until【答案】D【解析】考查not…until…的用法。句意:直到每個(gè)人都到了我們才開(kāi)始討論。not…until…“直到……才……”;since“自……以來(lái);既然,由于”;if“如果”;while“雖然,當(dāng)……時(shí)候”。由句意可知選D。29.—When is the school art festival?—It will be held on time if it next Monday.A.don’t rain B.won’t rain C.doesn’t rain D.didn’t rain【答案】C【解析】【詳解】句意:學(xué)校的藝術(shù)節(jié)是什么時(shí)候?——如果不下雨的話(huà),下周一將會(huì)如期舉行。If引導(dǎo)的條件狀語(yǔ)從句中,如果主句是將來(lái)時(shí),從句用一般現(xiàn)在時(shí)代替將來(lái)時(shí)。故選C。30.Could you give me some advice on travelling?Take a map with you _______ you have a guide or you know the city very well.A.if B.unless C.a(chǎn)lthough D.because【答案】B【解析】句意:你能給我一些關(guān)于旅行的建議嗎?如果沒(méi)有向?qū)Щ蛘邔?duì)城市不很了解,那么就隨身帶著一張地圖。A. if如果; B. unless除非;如果不; C. although雖然,盡管; D. because因?yàn)?。根?jù)句意故選B。