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成時(shí),所以前一句也為現(xiàn)在完成時(shí),故選A.【點(diǎn)評(píng)】辨析句意,注意句子的時(shí)態(tài)與語(yǔ)態(tài),選出合適的選項(xiàng)。25.I have lived here _______ I was born.A.beforeB.whenC.forD.since【答案】 D 【解析】【分析】自從我出生我就一直生活在這里。自從用since.【點(diǎn)評(píng)】考查關(guān)連詞的用法。26.一This is the second time I have e to Taiyuan. It a lot.一Yeah, it is being more and more beautiful. A.changesB.will changeC.was changingD.has changed【答案】 D 【解析】【分析】句意為——這是我第二次來(lái)到太原。 它改變了很多?!堑?,它將變得越來(lái)越美麗。根據(jù)have e,可知是時(shí)態(tài)是現(xiàn)在完成時(shí),結(jié)構(gòu)為have/has done,主語(yǔ)是it,用has changed,故選D?!军c(diǎn)撥】此題考查現(xiàn)在完成時(shí)。27. you ever______ the Palace Museum? A.Were:VisitingB.Will;visitC.Have;visitedD.Are;visiting【答案】 C 【解析】【分析】句意:你去參觀過(guò)故宮嗎。ever一般永遠(yuǎn)現(xiàn)在完成時(shí)的疑問(wèn)句中,只有C選項(xiàng)是完成時(shí)態(tài),故選C?!军c(diǎn)評(píng)】聯(lián)系句意,尋找關(guān)鍵詞,根據(jù)關(guān)鍵詞語(yǔ)判斷所填之詞。28. Anna, could you lend me this book, please? I39。m sorry. I it for only two days, and I haven39。t finished it yet.A.have boughtB.have hadC.boughtD.had【答案】 B 【解析】【分析】句意:“安娜,請(qǐng)問(wèn)你能借給我這本書(shū)嗎?……對(duì)不起,我剛買了兩天。我還沒(méi)有看完呢。”根據(jù)答語(yǔ)中的 “for only two days”可知要用現(xiàn)在完成時(shí),而且應(yīng)用延續(xù)性動(dòng)詞。故選B?!军c(diǎn)評(píng)】考查現(xiàn)在完成時(shí)。29.—How long can I _____ the Chinese workbook?—For three weeks.A.borrowB.keepC.to borrowD.to keep【答案】B 【解析】【分析】句意:——我能保存語(yǔ)文練習(xí)本多長(zhǎng)時(shí)間?——三個(gè)星期。情態(tài)動(dòng)詞can用動(dòng)詞原形,所以排除C、D。how long所在的句子用延續(xù)性動(dòng)詞,borrow是非延續(xù)性動(dòng)詞,keep是延續(xù)性動(dòng)詞,故選B?!军c(diǎn)評(píng)】考查情態(tài)動(dòng)詞和延續(xù)性動(dòng)詞與非延續(xù)性動(dòng)詞的用法,注意平時(shí)識(shí)記。30.So far Tom with Mary _______ 50 left behind children to do their homework after school.A.helpB.helpedC.has helpedD.have helped【答案】 C 【解析】【分析】此題要掌握現(xiàn)在完成時(shí)的時(shí)間狀語(yǔ)及主語(yǔ)+with 短語(yǔ)是單數(shù)的概念,即可得出答案。選C。