現(xiàn)在完成時(shí)語(yǔ)法ppt-預(yù)覽頁(yè)
【正文】 two years ago) since 2 years ago since 1998 since she came to the school) for + 時(shí)間段 since+時(shí)間點(diǎn) for 2 years/a long time 一、用 for和 since填空。t seen much of him recently (lately). We have seen that film before. Have they found the missing child yet ？ 4. 現(xiàn)在完成時(shí)常常與表示頻度的時(shí)間狀語(yǔ)連用 ,如 often, sometimes, ever, never, twice, on several occasion等 : Have you ever been to Beijing？ I have never heard of Bunny. I have used this pen only three times. Gee has met that gentleman on several occasions. 5. 現(xiàn)在完成時(shí)還往往可以同包括現(xiàn)在時(shí)間在內(nèi)的時(shí)間狀語(yǔ)連用 ,如 now, just, today, this morning/week/month/year, up to these few days/weeks/months/years, up to present, so far等 : Peter has written six poems so far. Man has now learned to make use of natural materials. There has been too much rain in San Francisco this year. Up to these weeks, everything has been successful. have (has) gone和 have (has) been的區(qū)別 (has) gone表示“已經(jīng)去某地了” She has gone to Shanghai .(她可能已在去上海的路上，或已到上海，總之現(xiàn)在不在這里。 bee— be borrow— keep buy— have begin (start)— be on open— be open die— be dead leavebe away ebe here/in go out— be out joinbe a member/be in begin to studystudy 注明：非延續(xù)性動(dòng)詞在否定結(jié)構(gòu)中可用于現(xiàn)在完成時(shí)態(tài)：I haven’t bought anything for two days. 動(dòng)詞的過去分詞的規(guī)則變化，在動(dòng)詞后加 ed，規(guī)則變化有以下四種： ①原形 +ed 如： worked, passed ② 詞尾是 e時(shí)，直接加 d 如： liked lived ③ 若詞尾為“輔音字母加 y”，則改 y為 i加 ed。 have (has)hadhad leaveleftleft loselostlost makemademade feelfeltfelt spellspeltspelt standstoodstood 2. 改變單詞中間元音字母。 I have seen the film.(我了解這部電影的內(nèi)容。常與下列狀語(yǔ)連用 :already, just, yet, ever, never, before (2)表示過去已經(jīng)發(fā)生，持續(xù)到現(xiàn)在的動(dòng)作或狀態(tài)，可以和表示從過去某一時(shí)刻延續(xù)到現(xiàn)在（包括“現(xiàn)在”在內(nèi)）的一段時(shí)間的狀語(yǔ)
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