【正文】 詞，這里用so。根據(jù)題意，故選B。40．—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?。——但沒人知道那天會(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。41．________ jeans were invented over 100 years ago, they39。re still in fashion today.A．Because B．If C．Although D．Since【答案】C【解析】【詳解】句意：盡管牛仔褲在100多年前就被發(fā)明了，現(xiàn)在他們?nèi)匀缓芰餍??？疾檫B詞辨析。A. Because 因?yàn)椋?B. If 如果； C. Although 盡管； D. Since自從。結(jié)合句意，牛仔褲被發(fā)明了100多年，現(xiàn)在仍然流行?？芍昂蟊硎咀尣疥P(guān)系，故用連詞although，故選C。考點(diǎn)：考查連詞的用法。42．You’d better take the map with you ________ 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。考查連詞辨析。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。43．Did you catch what the teacher said?No. She spoke so fast _______ I couldn’t hear her very clearly.A．which B．that C．when D．since【答案】B【解析】考查從句的連接詞。“你聽懂老師講的了嗎？”“不。她說的那么快以至于我聽得不是太清楚?！眘o...that...“如此......以至于......”，表示結(jié)果。故選B。44．John didn’t give up looking for a job ________ he got an offer from a German pany.A．until B．since C．because D．if【答案】A【解析】【詳解】句意：約翰一直沒有停止找工作，直到它在一家德國(guó)公司得到一個(gè)職位。Until直到；since由于，自從……以來；because因?yàn)?；If是否，如果。短語not……until……，直到……才，故選A。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。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。46．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(duì)我粗魯，我拒絕跟她再次說話，直到她向我道歉為止?？疾檫B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。47．What a mess! The sharing bikes are thrown everywhere.Let’s collect and put them in the right place they can be used conveniently.A．unless B．so that C．because D．so long as【答案】B【解析】句意：——真是一團(tuán)糟！共享自行車到處都是?！屛覀儼阉鼈兪占饋矸旁诤线m的地方，這樣它們就可以方便地使用了。A. unless除非；B. so that以便；C. because因?yàn)?；D. so long as只要。結(jié)合句意可知，此處是so that引導(dǎo)的目的狀語從句，答案為B。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(mèng)想在你做之前是不會(huì)實(shí)現(xiàn)的。考查連詞辨析。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．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。50．_______ 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