高一英語(yǔ)上冊(cè)必修四知識(shí)點(diǎn)(編輯修改稿)
2024-12-07 02:26 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 t to do 。二、過(guò)去進(jìn)行時(shí)①過(guò)去某一時(shí)刻正在進(jìn)行的動(dòng)作或某一階段內(nèi)發(fā)生或頻繁發(fā)生。②某一動(dòng)作發(fā)生時(shí)另一動(dòng)作正在發(fā)生，其中一個(gè)在由when或while引導(dǎo)的時(shí)間狀語(yǔ)從句中。三、 現(xiàn)在完成時(shí)①現(xiàn)在完成時(shí)除可以和for、since引導(dǎo)的狀語(yǔ)連用外，還可以和下面的介詞短語(yǔ)連用：during / in /over the last(past)few years (months, weeks)、in recent years等。②下列句型中常用現(xiàn)在完成時(shí)It is (has been) + 一段時(shí)間 + since從句This(That / It)is the first(second…)time that + 完成時(shí)This(That / It)is the only … + that + 完成時(shí)This(that / It)is the best / finest / most interesting … + that 從句 + 完成時(shí)③在時(shí)間或條件狀語(yǔ)從句中，現(xiàn)在完成時(shí)可以代替一般將來(lái)時(shí)。如：I shall post the letter as soon as I have written it.If you have done the experiment, you will realize the theory better.Don’t get off the bus until it has stopped.survey n. 調(diào)查，概述。v. 測(cè)量，檢查。. a. A recent survey showed most of those questioned were for the
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