【正文】 at從句，表示如此一個……以至于……。Interesting是形容詞，這里用so。根據(jù)題意，故選B。40．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。41．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)校因為他在上海參加機(jī)器人競賽。so所以；because因為；before在……之前；if如果。所以選B。考點(diǎn)：考查連詞。42．Rose cooks meals at home on Sundays. She never eats ________ 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，C表示在…之后。根據(jù)句意，故選A。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)。考查連詞辨析題。if如果，表條件；or或者，表選擇；so所以，表結(jié)果；but但是，表轉(zhuǎn)折。答句是條件狀語從句，需用if連接。根據(jù)句意結(jié)構(gòu)，可知選A。44． Excuse me. Is it my turn now? Not yet. Please wait outside ________ your name is called.A．untilB．sinceC．so【答案】A【解析】句意： 打擾一下。 輪到我了嗎？ 還沒。請在外面等直到你的名字被叫到。until用于肯定句中，意為“到…為止”，表示動作一直持續(xù)到所說時間為止，本句就是說“到名字被叫到為之，請一直等待”，前半句和后半句中不存在因果關(guān)系，排除C，也沒有表示“自從”的意味，排除B，故選A。45． 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)為時間和金錢都值得。A. As當(dāng)……的時候；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．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……時候用until．故選B．47．______ many children like KFC, I think they’d better try not to eat it too often.A．Because B．When C．Although D．If【答案】C【解析】考查從句的知識。句意“盡管很多孩子喜歡吃KFC，單數(shù)我認(rèn)為他們最好不要經(jīng)常吃?！眀ecause引導(dǎo)原因狀語從句；when引導(dǎo)時間狀語從句；although引導(dǎo)讓步狀語從句；if引導(dǎo)條件狀語從句。題目表示的是讓步。故選C。48．You39。d better take the map with you you won39。t get lost．A．so that B．a(chǎn)s soon as C．now that D．a(chǎn)s long as【答案】A【解析】【詳解】句意：你最好帶上地圖,這樣你就不會迷路?？疾檫B詞短語辨析。A. 以便于，表目的；B. 一……就，表條件；C. 既然，表原因；D. 只要，表條件。根據(jù)題干可知你最好帶上地圖的目的是為了不會迷路，本句是so that引導(dǎo)的目的狀語從句，故選A。49．I think you’ll miss the train ________ you hurry up.A．if B．a(chǎn)nd C．unless【答案】C【解析】【詳解】句意“除非你快點(diǎn)，否則你將錯過這個火車”。（引導(dǎo)條件狀語從句）；（表示并列）；（引導(dǎo)條件狀語從句）。根據(jù)句意可知，表示“除非你快點(diǎn)”，故選C。50．—His handwriting is very careful.—Yeah. With the help of him, his sister writes as ________ as him.A．care B．carefulC．more carefully D．carefully【答案】D【解析】試題分析：句意：——他的書寫非常認(rèn)真?！堑摹Ｔ谒膸椭?，他的妹妹寫得和他一樣認(rèn)真。care關(guān)心，是動詞；careful認(rèn)真的，是形容詞；more carefully更認(rèn)真地；carefully認(rèn)真地。as+形容詞的原級+as“和……一樣”，修飾動詞write，故用副詞carefully，故選D?？键c(diǎn)：考查副詞的用法。