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以來,中國在科學(xué)技術(shù)方面取得了巨大成就。根據(jù)since,可知時態(tài)用現(xiàn)在完成時,故選C。注意現(xiàn)在完成時的用法。re late again! I ________ here for over two hours!A.B.C.D.句意:為什么,你又遲到了!我在這里已經(jīng)等了兩個多小時了!根據(jù)句意可知,“等”這個動作是從過去開始,一直持續(xù)到現(xiàn)在一直在進(jìn)行的動作,并對現(xiàn)在造成了影響。【點(diǎn)評】現(xiàn)在完成進(jìn)行時表示動作從某一時間開始,一直持續(xù)到現(xiàn)在,或者剛剛終止,或者可能仍然要繼續(xù)下去。10.— He speaks Chinese very well.— It39。has been livingB.will have been livedD.—這不吃驚。表示持續(xù)到現(xiàn)在并且仍在進(jìn)行的動作,應(yīng)用現(xiàn)在完成進(jìn)行時。故知選D項(xiàng)。11.Mary_______ to writing classes every night since June and the course will end this week. A.B.C.D.句意:從6月開始,瑪麗每天晚上去上寫作課,這個課程將于這周末結(jié)束。故選B。12.Dashan, who_________crosstalk, the Chinese edic tradition, for decades, wants to mix it up with the Western standup tradition. A.B.C.D.本句的時間狀語是“for decades幾十年來”,該時間狀語通常和現(xiàn)在完成的有關(guān)時態(tài)連用,本句強(qiáng)調(diào)這幾十年來大山一直努力把中國相聲和西方的脫口秀相結(jié)合。故D正確。m tired out. I_______t seem to have finished anything.A.have shoppedC.have been shopping【答案】 D 【解析】【分析】句意:我很累。用現(xiàn)在完成進(jìn)行時表一直發(fā)生的動作。A.B.C.D.故選A。in Shanghai for more than ten years, is considering working in Huaian, but he hasn39。had workedB.is workingD.分析句子可知,本句中的who指代前面的先行詞doctor Smith,是單數(shù)。故選B。16.But actually, these Englishers ______ gradually in accents, spellings, expressions and the usage of vocabulary and we have to adapt to that. A.changedC.is changing【答案】 C 【解析】【分析】句意:但事實(shí)上,這些說英語的人在口音,拼寫和單詞的使用上一直在改變,因此我們必須適應(yīng)這件事。 【點(diǎn)評】考查時態(tài),本題涉及現(xiàn)在完成進(jìn)行時。reportwill reportreportedhave been reporting【答案】D 【解析】【分析】句意:——你對中美之間的貿(mào)易戰(zhàn)爭了解多少?——哦,在最近的幾周里報紙一直在報道這件事?!军c(diǎn)評】考查時態(tài),本題涉及現(xiàn)在完成進(jìn)行時的應(yīng)用。hunts forB.has hunted forD.——從一個城市到另一個城市她一直在尋找一份工作,你知道,她將在六月畢業(yè)?!军c(diǎn)評】考查時態(tài),本題涉及現(xiàn)在完成進(jìn)行時的應(yīng)用。was paintingB.have paintedD.根據(jù)句意可知應(yīng)采用現(xiàn)在完成進(jìn)行時態(tài),強(qiáng)調(diào)動作一直在延續(xù)。 【點(diǎn)評】考查時態(tài),本題涉及現(xiàn)在完成進(jìn)行時的應(yīng)用。20.—Where is Mary? —Oh, she went out after breakfast, and her paper in the library ever since. You can find her there.A.had writtenC.is writing【答案】 C 【解析】【分析】句意:—Mary去哪了?—她吃完早飯就出去了,從那以后她就一直在圖書館里寫論文,你可以在那找到她。Mary寫論文這個動作從過