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D.C.B.18.—How much do you know about the trade war between China and America?—Well, the newspapers ________ it in the past few weeks. A.表示從過(guò)去某個(gè)時(shí)間持續(xù)到現(xiàn)在一直發(fā)生的動(dòng)作用現(xiàn)在完成時(shí)態(tài)或現(xiàn)在完成進(jìn)行時(shí)態(tài),故答案選D。D.had usedB.is using 【點(diǎn)評(píng)】考查時(shí)態(tài),本題涉及現(xiàn)在完成進(jìn)行時(shí)。—我已經(jīng)連軸轉(zhuǎn)努力了一整個(gè)星期來(lái)寫(xiě)我的畢業(yè)論文。D.C.B.s wrong? You look really stressed out. —I ________ the whole week preparing for my graduation paper.A.【點(diǎn)評(píng)】考查動(dòng)詞時(shí)態(tài),本題涉及現(xiàn)在完成進(jìn)行時(shí)的應(yīng)用。而B(niǎo)是現(xiàn)在完成時(shí),表示動(dòng)作到現(xiàn)在已完成或停止。因此可知C、D是過(guò)去完成時(shí),不符合。福特汽車公司在美國(guó)亞利桑那州的公共道路一直讓沒(méi)有安全的的司機(jī)操縱的自動(dòng)化微型轎車運(yùn)轉(zhuǎn)。D.C.B.its autonomous minicars on public roads in Arizona, the US, without a safety driver since October, 2017. A.故選C。D.has been watchingB.has been watched14.He _______ it for two hours, and he39。故答案為C。D.C.B.in the library every night over the last three months. A.【點(diǎn)評(píng)】本題難度不大,重點(diǎn)把握句意和熟知現(xiàn)在完成進(jìn)行時(shí)的內(nèi)涵。根據(jù)句意說(shuō)明是問(wèn)對(duì)方這些年在做什么,因此使用現(xiàn)在完成進(jìn)行時(shí)表示。這些年你一直在做什么?—自從我畢業(yè)以后我嘗試了很多事情。have you been doing【答案】D 【解析】【分析】考查時(shí)態(tài)。did you dowere you doinghave you doneve tried many things since we left school. I39。故D正確。本句的時(shí)間狀語(yǔ)是“for decades幾十年來(lái)”,該時(shí)間狀語(yǔ)通常和現(xiàn)在完成的有關(guān)時(shí)態(tài)連用,本句強(qiáng)調(diào)這幾十年來(lái)大山一直努力把中國(guó)相聲和西方的脫口秀相結(jié)合。D.C.B.【點(diǎn)評(píng)】考查時(shí)態(tài)11.Dashan, who_________crosstalk, the Chinese edic tradition, for decades, wants to mix it up with the Western standup tradition. A.現(xiàn)在完成進(jìn)行時(shí)通常表示過(guò)去發(fā)生的事情延續(xù)到現(xiàn)在,而且還在繼續(xù)發(fā)生,強(qiáng)調(diào)事情的延續(xù)性和反復(fù)性。had done【答案】 B 【解析】【分析】考查時(shí)態(tài)。C.have been doing10.I ________ my homework for four hours, but I am not sure whether I can hand it in tomorrow.A.第一空依據(jù)since一詞應(yīng)該使用現(xiàn)在完成時(shí),且進(jìn)行時(shí)態(tài)更能體現(xiàn)出目前的狀況,故使用現(xiàn)在完成進(jìn)行時(shí)最好;第二空是虛擬語(yǔ)氣中“it39。 took【答案】 D 【解析】【分析】考查時(shí)態(tài)和虛擬語(yǔ)氣。D. take will takeC.B.have increased。9.Housing prices ________ since the end of the last year. Therefore, it39。 【點(diǎn)評(píng)】考查現(xiàn)在完成進(jìn)行時(shí)和主謂一致。since the end of last month 可知,此處表示動(dòng)作從某一時(shí)間開(kāi)始,一直持續(xù)到現(xiàn)在,他們還沒(méi)有完成。D.C.B.t finished yet. A.注意現(xiàn)在完成時(shí)的用法。根據(jù)since,可知時(shí)態(tài)用現(xiàn)在完成時(shí),故選C。has made【答案】 C 【解析】【分析】句意:自1978年以來(lái),中國(guó)在科學(xué)技術(shù)方面取得了巨大成就。B.makes注意掌握結(jié)構(gòu)現(xiàn)在完成進(jìn)行時(shí)的結(jié)構(gòu):has/have +been+現(xiàn)在分詞。故選C。have been【答案】 C 【解析】【分析】句意:從1990年開(kāi)始,進(jìn)入中國(guó)大學(xué)的外國(guó)學(xué)生的數(shù)量呈穩(wěn)定增長(zhǎng)。has beenareis【點(diǎn)評(píng)】考查動(dòng)詞的時(shí)態(tài),注意語(yǔ)境中提供的時(shí)間狀語(yǔ)。Did,has vi