【正文】 e successful ________ we keep working hard. —I agree with you.A．if B．unless C．because D．when【答案】B【解析】【詳解】句意：——除非我們堅(jiān)持努力工作，我們不能成功?！?—我同意你?？疾檫B詞。；；；……時(shí)候，由于。根據(jù)句意可知選B。41．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：今天的年輕人沒有智能手機(jī)就活不下去。無論何時(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。42． has a habit of taking a shower _________ he has breakfast.A．though B．before C．because D．since【答案】B【解析】試題分析：句意：史密斯先生有在吃早飯前洗澡的習(xí)慣。though雖然，盡管，引導(dǎo)讓步狀語從句； ……之前，引導(dǎo)時(shí)間狀語從句； 因?yàn)椋龑?dǎo)原因狀語從句；……，引導(dǎo)時(shí)間狀語從句。根據(jù)句意，故選B。【考點(diǎn)定位】考查連詞的用法。43．_______ you use your dictionary often, your spelling will improve.A．Whether B．IfC．Though D．While【答案】B【解析】試題分析：Whether是否；If是否，如果；Though 雖然，盡管；While 然而，當(dāng)……時(shí)。句意：如果你經(jīng)常使用詞典，你的書寫會(huì)很快提高的。結(jié)合語境可知選B?？键c(diǎn)：考查連詞辨析44．—Are you going to climb the mountains tomorrow?—Yes. But if it _____, I_____ at home.A．will rain。 will stay B．will rain。 stay C．rains。 stay D．rains。 will stay【答案】D【解析】【詳解】句意：——你明天將去爬山嗎？——是的。但是如果明天下雨，我將呆在家里。考查狀語從句。根據(jù)句意和語境，可知答句是if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”的原則，if從句用一般現(xiàn)在時(shí)，主語it是第三人稱單數(shù)，動(dòng)詞用三單形式，“下雨”用rain，所以第一空填rains；主句用一般將來時(shí)，“呆在家里”stay at home，用will+動(dòng)詞原形，所以第二空填will stay；故答案選D。45．—Let’s have a piic if it ________ this Sunday.—But nobody knows if it ________ on that day.A．will be fine。 will rain B．will be fine。 rains C．is fine。 will rain D．is fine。 rains【答案】C【解析】【詳解】句意：——如果這個(gè)星期天天氣好，我們?nèi)ヒ安桶??！珱]人知道那天會(huì)不會(huì)下雨。第一空是if引導(dǎo)的條件狀語從句，從句用一般現(xiàn)在時(shí)態(tài)，主語是it，這里be動(dòng)詞用is。排除AB；第二空是if引導(dǎo)的賓語從句，根據(jù)語境可知用一般將來時(shí)，其結(jié)構(gòu)是will{動(dòng)詞原形。根據(jù)題意，故選C。46．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)椤薄Ｓ缮暇洹拔艺J(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。47．Chen Wei isn’t at school today ________ he is taking a robot petition in Shanghai.A．so B．because C．before D．if【答案】B【解析】試題分析：句意：陳煒今天不在學(xué)校因?yàn)樗谏虾⒓訖C(jī)器人競(jìng)賽。so所以；because因?yàn)?；before在……之前；if如果。所以選B?？键c(diǎn)：考查連詞。48．It was the middle of the night _____the sound of the piano woke me up.A．because B．if C．when D．a(chǎn)lthough【答案】C【解析】【詳解】句意：正是半夜鋼琴聲把我吵醒了。A. because因?yàn)椋籅. if如果；C. when 當(dāng)……的時(shí)候；D. although盡管，雖然。根據(jù)下文the sound of the piano woke me 。根據(jù)題意，故選C。49． 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。50．It was ______ lovely weather ______ we decided to spend the day on the beach.A．such a； that B．such； that C．such； as D．so； that【答案】B【解析】試題分析：句意：是那么好的天氣，以至于我們決定在沙灘上度過那一天的時(shí)光。so、such 區(qū)別：So，如此，那么，so+形容詞；such,如此，那么。such+（a/an）+（形容詞）+名詞，但名詞前有few,little,many,，故排除A，such…that…如此的……以至于……。結(jié)合句意，故選B。考點(diǎn)：考查連詞的用法。