雅思閱讀之非謂語動詞結(jié)構(gòu)學(xué)習(xí)內(nèi)容
要想提高雅思閱讀能力,平時的積累練習(xí)很重要。下面,小編給大家整理了雅思閱讀中常見的非謂語動詞結(jié)構(gòu)學(xué)習(xí)內(nèi)容,大家可以作為學(xué)習(xí)的參考。
?、駝釉~不定式:
動詞不定式的時態(tài)和語態(tài)
1)構(gòu)成:(以動詞“do”為例)
主動態(tài):一般式"to do";完成式"to have done";進(jìn)行式"to be doing";完成進(jìn)行式“to have been doing”
被動態(tài):一般式"to be done";完成式“ to have been done"
否定式:not+不定式
2)不定式的時態(tài):
?、俨欢ㄊ降囊话闶奖硎镜膭幼髋c主句謂語動詞表示的動作同時發(fā)生或之后發(fā)生。
He seems to know her address.(:=It seems that he knows her address.)
I hope to see you again.(=I hope that I’11 see you again.)
?、诓欢ㄊ降倪M(jìn)行體表示的動作正在進(jìn)行,與主句謂語動詞表示的動作同時發(fā)生。其用法主要有以下幾種情況:
a 常用在"appear,happen,pretend,seem,hope,promise"之后。
She pretended to be listening attentively.
Tom appeared to be living in this area.
I hope to be earning my living in a year’s time.(I hope 1 will/would be earning my living)
I promised to be waiting at the door when he came out.
b 常用在"believe,consider,suppose,think,know,report,say,understand"等動詞的被動式之后。
He is thought/known/believed/said/supposed to be living in this area = People think/know/ believe/ say/suppose that she is living abroad.[據(jù)認(rèn)為(據(jù)知,據(jù)信,據(jù)說,據(jù)猜測)她住在國外。]
[注]“be supposed to”通常含有“應(yīng)該”意思,表示一定的責(zé)任和義務(wù)。
You are supposed to know how to use a computer=You should know how to use a computer.
You are supposed to have been studying=You should have been studying.
Students are not supposed to cook in their dormitory=Students shouldn’t cook in their dormitory.
3)不定式的完成體:
①用于表達(dá)發(fā)生在主句謂語動詞之前的動作或狀態(tài),也可以表達(dá)預(yù)計(jì)在將來某一時刻之前完成的動作或狀態(tài)。
I am sorry to have given you so much trouble.(=I am sorry that I have given you so much trouble.)
We’re leaving at five o’clock in the morning,and hope to have done most of the journey by lunchtime.
?、诓欢ㄊ酵瓿蛇M(jìn)行體主要用于“appear,seem,happen,pretend"等之后,也可用于"believe,know,report,say,understand"等動詞的被動式之后。
He appears to have been waiting for a long time.
He is believed to have been waiting for a message.
[注]不定式的完成進(jìn)行體與不定式的完成體略有不同,試比較:
He seems to have eaten the apples.(蘋果已被吃光。)
He seems to have been eating the apples.(蘋果尚未完全吃光。)
?、鄄欢ㄊ降耐瓿审w還可以表達(dá)本該發(fā)生卻未發(fā)生的事情常帶這種不定式的謂語動詞有:“pretend,intend, appear,seem,should like,expect"等。
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