來源:網(wǎng)絡(luò)來源 作者:中考網(wǎng)編輯 2019-09-25 15:20:34
例如:He has turned off the light.他已把燈關(guān)了。(動作結(jié)束于過去,但說明的是現(xiàn)在的情況--燈現(xiàn)在不亮了。)
現(xiàn)在完成時"完成用法"的特點是動作不延續(xù),因此,該時態(tài)只能與表示不定的過去時間狀語(如:already,yet,before,recently等)、頻度時間狀語(如:never,ever,once等)、包括現(xiàn)在時刻在內(nèi)的時間狀語(如:this morning / month /year...,today等)連用。
7.現(xiàn)在完成時的"未完成用法"現(xiàn)在完成時的"未完成用法"指的是動作開始于過去某一時刻,一直延續(xù)到現(xiàn)在,或可能還要繼續(xù)下去。
此種用法的句中常需一個表示一段時間的狀語(由since或for引導),或表示與現(xiàn)在時刻相連的時間狀語(如:up to now,so far)等。
注意:(1)現(xiàn)在完成時的未完成用法只適用于延續(xù)性動詞,不可用于終止性動詞,即瞬間完成或延續(xù)時間很短的動詞。如:come,go,arrive,leave,join,become,die等。
8.一段時間+has passed+since從句
9. 現(xiàn)在完成時常和短語 "up to now /till now","so far" (意思是從過去某一確定的時間一直延續(xù)到現(xiàn)在)連用。
例如:Up to/till now he's read many story books. 至今他已讀過好多故事書。
例如:I've been to New York three times so far. 至今我已到紐約去過三次。
has gone (to)/has been (to)/has been (in) 的區(qū)別
has gone to:去了沒回
has been to :去過
has been in:呆了很久
10.不能與when連用
11.不可以與一般過去時的定義混淆
五、動詞的替換
延續(xù)性動詞和非延續(xù)性動詞的替換
begin(start)→be on
die →be dead
leave →be away (from)
fall ill(sick, asleep)→be ill(sick, asleep)
get up→be up
go out →be out
finish →be over
put on →wear 或be on open →be open
join →be in或 be a member of
close →be closed
go to school→be a student
borrow →keep
buy/get →have
catch(a cold)→ have(a cold)
get to know →know begin to
study→study
come to work→work
move to → live in
finish/end → be over
come to → be in
sit down → be seated
marry → be married
dress → be dressed
歡迎使用手機、平板等移動設(shè)備訪問中考網(wǎng),2024中考一路陪伴同行!>>點擊查看