來源:網(wǎng)絡(luò)來源 作者:中考網(wǎng)編輯 2020-08-23 18:27:39
中考網(wǎng)整理了關(guān)于2021年初中英語語法之現(xiàn)在完成時(shí)的用法,希望對同學(xué)們有所幫助,僅供參考。
持續(xù)性用法表示動(dòng)作發(fā)生于過去,但在過去并未完成,而是從過去一直持續(xù)到現(xiàn)在,此時(shí)多半會連用表示持續(xù)性的時(shí)間狀語;后者指的是動(dòng)作發(fā)生于過去,且在過去已經(jīng)完成,但這個(gè)過去發(fā)生的動(dòng)作對現(xiàn)在有影響,而說話者正好要強(qiáng)調(diào)的就是這個(gè)影響,此時(shí)一般沒有明顯的時(shí)間狀語,主要通過上下文來理解。如:
1. Years ago we didn't know this , but recent science _______that people who don't sleep well soon get ill.
A. showed B. has shown C. will show D. is showing
【分析】答案選B。由表示對照的Years ago和recent可知,"以前不知",但"現(xiàn)在已經(jīng)證明了",所以用現(xiàn)在完成時(shí)。
2.He was hoping to go abroad but his parents_______that they won ' tsupport him unless he can borrow money from the bank.
A. were deciding B. have decided C. decided D. will decide
【分析】答案選B。因賓語從句中的時(shí)態(tài)是一般將來時(shí),jhd58zwf主句中的謂語動(dòng)詞不可能是過去時(shí)態(tài),排除逸項(xiàng)A和C;由語境判斷,不是"將要決定",而是"現(xiàn)在已經(jīng)決定",所以排除D ,而選B。
3.My brother is an actor. He_______in several film so far.
A. appears B. appeared C. has appeared D. is appearing
4.The country life he was used to_______greatly since 1992.
A. change B. has changed C. changing D. have changed
【分析】答案逸B。 since 1992這類時(shí)間狀語通常與現(xiàn)在完成時(shí)連用。主句主語是The country life ,句中he was used to是省略了關(guān)系代詞that的定語從句。
【注】還要特別注意以下這些習(xí)慣上要與現(xiàn)在完成時(shí)連用的短語和句型:already , just , so far , in [for, during] the last [past] few years , it is the first time that , by now , for five years , up to [until] now , since 1980等。但現(xiàn)在咒成時(shí)不與具體的過去吋間狀語或when連用。
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