來源:網(wǎng)絡(luò)資源 作者:中考網(wǎng)整理 2019-07-23 13:21:58
1.動(dòng)詞的時(shí)態(tài):
① 一般現(xiàn)在時(shí)
一般現(xiàn)在時(shí)的主要用法有兩點(diǎn):其一表示一經(jīng)常發(fā)生的動(dòng)作,如: i always go to scho
ol at seven. 其二表示某一真理,事實(shí),如: the earth moves around the sun.
② 現(xiàn)在完成時(shí)
現(xiàn)在完成時(shí)的主要用法有兩點(diǎn):其一表示某一動(dòng)作發(fā)生于過去,并持續(xù)下來,到現(xiàn)在完成
。如: i have studied english for two years. 其二表示某動(dòng)作發(fā)生于過去并已結(jié)束,但其影響到現(xiàn)在。如: i haven't had my lunch. i'm hungry now.
與現(xiàn)在完成時(shí)連用的詞語有:yet, already, before, since, ever, never等。
其考查要點(diǎn):
其一: have been表示曾經(jīng)去過,如:i have been to america twice. 說此話的人應(yīng)
已經(jīng)回到國(guó)內(nèi)。而he has gone to japan.則此人目前已到日本去了。
其二: 截止性動(dòng)詞可以有現(xiàn)在完成時(shí),但不可與表示一段長(zhǎng)度的詞連用,如: the clas
s has begun. the class has been on for five minutes.
③ 一般過去時(shí)
表示過去發(fā)生的動(dòng)作,過去的習(xí)慣或反復(fù)發(fā)生的動(dòng)作。如: who broke the window? in those days, i studied hard at night every day. 與過去時(shí)連用的時(shí)間狀語有: at that time, ago, in 1949,just now (剛才), last night, yesterday
④ 一般將來時(shí)
純將來時(shí)的表示法: shall/will+動(dòng)詞原形
例:i'll leave for shanghai this evening.
表示按計(jì)劃要做或可能做的事: be going to+動(dòng)詞原形
例:i'm going to help you tonight.
將來時(shí)的特殊表示法
a.be+coming/leaving/going/starting/arriving
例:don't worry. i'm coming.
b.be about to+動(dòng)詞原形
例:he is about to leave, when the telephone rings.
c.狀語從句中用一般現(xiàn)在時(shí)表示將來
例:if it rains tomorrow i won't go to the party.
2.情態(tài)動(dòng)詞:
can:能,會(huì)
例:he can do it very well.
may:許可,可能性
例:may i use your pen?
must:必要,禁止(多表示主觀看法)
例:you mustn't play with fire.
haveto:不得不(多表示客觀之事)
例:i have to go, because i have a meeting.
could與would:二者用于現(xiàn)在時(shí)表示語氣的委婉
例:could you help me?
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