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iding with us tomorrow? Sure, ____ I am busy.A.since B.unless C.when D.until【答案】B【解析】試題分析:句意:你想要明天和我們一起去劃船嗎?好的,如果我不忙我就去。A自從;B如果不;C當(dāng)……時(shí)候;D直到……才。根據(jù)句意,應(yīng)選B??键c(diǎn):考查連詞。21.You39。d better get home earlier today we can go out for a big meal.A.in order to B.such that C.so that D.in order【答案】C【解析】句意:你最好今天早點(diǎn)回家,這樣我們就可以出去吃大餐了。A. in order to 為了,后跟動(dòng)詞原形;B. such that沒有此用法;C. so that為了,引導(dǎo)目的狀語從句;D. in order+that+從句,引導(dǎo)目的狀語從句。we can go out for a big meal表示目的的完整句子,所以使用連詞詞組so that。故選:C。22.一When did you leave your office yesterday? 一 I finished the project.A.Until B.While C.When D.Not until【答案】D【解析】句意:昨天你什么時(shí)候離開你的辦公室的?——直到我完成那個(gè)任務(wù)。本題考查連詞。A. Until 直到時(shí)候才結(jié)束,要與延續(xù)性動(dòng)詞連用;B. While 當(dāng)時(shí)候 ;C. When 當(dāng)時(shí)候;D. Not until直到時(shí)候才開始,與非延續(xù)性動(dòng)詞連用;句子中finished(完成)是非延續(xù)性動(dòng)詞,故選D23.I have to leave now __ I can catch the last bus.A.so that B.because of C.until D.a(chǎn)s soon as【答案】A【解析】試題分析:so that以便,所以;because of因?yàn)?,由于;until直到;as soon as一……就……。句意:為了趕上末班車,我現(xiàn)在必須離開了。結(jié)合語境可知選A??键c(diǎn):連詞辨析點(diǎn)評(píng):連詞在句子中主要起聯(lián)系上下文的作用,他們之間的區(qū)別就是表示邏輯關(guān)系的不同,所以在解題時(shí)先要理解上下文含義,然后根據(jù)上下文邏輯關(guān)系選擇合適的連詞。連詞的用法都比較多,語義之間還有交叉,熟記其基本應(yīng)用規(guī)則,了解其區(qū)別,注意固定搭配對(duì)象,是做好此類題型的關(guān)鍵。24.I won39。t go he es back.A.until B.while C.when D.why【答案】A【解析】句意:直到他回來,我才走。A. until 直到; B. while當(dāng)時(shí)候; C. when當(dāng)時(shí)候; D. why為什么;notuntil 直到才;故選A25.I hate traveling by air______you usually have to wait for hours before the plane takes off.A.because B.though C.until D.so that【答案】A【解析】【詳解】句意:我討厭坐飛機(jī)旅行,因?yàn)橥ǔR壬蠋讉€(gè)小時(shí)才能起飛。,,表目的。根據(jù)前后句子之間關(guān)系可知,有因果關(guān)系,故選A?!军c(diǎn)睛】這四個(gè)選項(xiàng)都是連詞,但是意思和用法各不相同。because 因?yàn)椋龑?dǎo)原因狀語從句;though雖然,盡管,引導(dǎo)讓步狀語從句,類似的詞還有although, even though, even if;until常和not連用,not …..until…意思是直到….才…..,引導(dǎo)時(shí)間狀語從句; so that為了,表示目的,引導(dǎo)目的狀語從句。26.—Betty, do you know if Tony ______ the photo petition?—He will, if he ______ his project on Australia.A.enters。 finishes B.enters。 will finishC.will enter。 finishes D.will enter。 will finish【答案】C【解析】【詳解】句意:貝蒂,你知道托尼是否要參加攝影比賽?他會(huì)的,如果他完成了有關(guān)澳大利亞的課題。問句中if引導(dǎo)的是賓語從句,翻譯為是否,前者問的是將來;答語是由if引導(dǎo)的條件狀語從句,所以遵循主將從現(xiàn)的原則,所以if之后用一般現(xiàn)在時(shí)。所以答案選C。27.They will lose the game _______ they try their best.A.unless B.once C.since D.a(chǎn)fter【答案】A【解析】【詳解】試題分析:句意:他們會(huì)輸?shù)舯荣惖?,除非他們盡自己最大的努力。lose the game 輸?shù)舯荣?,try one’s best 盡最大的努力。 A. unless 除非; B. once 一次;C. since 因?yàn)椋?D. after 在…之后,根據(jù)題意可知此句是unless引導(dǎo)的條件狀語從句,故選A。28.—Tom, you look tired this morning. What’s wrong?—I was so busy that I didn’t go to bed _____ 12 o’clock last night.A.until B.when C.though D.unless【答案】A【解析】本題符合notuntil的結(jié)構(gòu),表示直到才,故選答案為A29.To make your DIY work perfect, you’d better not start ___________ you get all the tools ready.A.when B.while C.before D.a(chǎn)fter【答案】C【解析】【詳解】句意:為了讓你的DIY作品完美,你最好在你把所有的工具都準(zhǔn)備好前不要開始。When當(dāng)……的時(shí)候;while當(dāng)……的時(shí)候;before 在……之前; after在……之后。所以選C。30.—We can’t be 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:—