We_______on this project for four hours. Let’s have a rest.

A.a(chǎn)re workingB.have been workingC.workedD.had worked

B

解析試題分析:考查時(shí)態(tài)。本題的關(guān)鍵詞是for four hours,描述的是聯(lián)想工作了4個(gè)小時(shí),通常與現(xiàn)在完成進(jìn)行時(shí)連用。句意:我們已經(jīng)連續(xù)工作了4個(gè)小時(shí)了,讓我們休息一下吧!現(xiàn)在完成進(jìn)行時(shí)表示動(dòng)作從過(guò)去開始,一直持續(xù)到現(xiàn)在,而且強(qiáng)調(diào)正在發(fā)生。故B正確。
考點(diǎn):考查時(shí)態(tài)
點(diǎn)評(píng):英語(yǔ)中的時(shí)態(tài)主要由動(dòng)詞的形式?jīng)Q定,因此在學(xué)習(xí)英語(yǔ)時(shí)態(tài)時(shí),要注意分析動(dòng)詞形式及具體語(yǔ)境,想象在那個(gè)特定的時(shí)間動(dòng)作所發(fā)生的背景,這個(gè)動(dòng)作是經(jīng)常性動(dòng)作、一般性動(dòng)作、進(jìn)行性動(dòng)作、完成性動(dòng)作還是將要發(fā)生的動(dòng)作。

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