八年級英語Past and present教案
i have cleaned the blackboard.（說明現在黑板是干凈的）
the teacher has written some new words on the blackboard（黑板上現在有單詞）
the teacher wrote some new words on the blackboard（黑板上現在沒有單詞）
（2）一般過去時可以和表示過去的時間狀語連用,如:yesterday, last year, three days ago, just now, 等。現在完成時不能和表示過去的時間狀語連用,其時間狀語可以是since…, for…, just, ever, never, before, already, yet , so far, all one’s life等
（九）規則動詞的過去分詞和它的過去式相同，即在原形后加－ed（－d）。已學近80個不規則動詞的過去分詞約有半數也和它的過去式相同，現分類如下，以利于同學們記憶：
1）原形中的元音字母有變化：
get-got-got, sit –sat-sat win-won-won spit- spat- spat shine –shone- shone
find- found- found hold-held-held meet- met-met stand- stood-stood
understand-understood-understood feed- fed-fed hang-hung-hung
2）原形中的輔音字母有變化：
make-made-made spill-spilt-spilt have/ has-had-had build-built-built
send-sent-sent lend- lent- lent spend-spent-spent
3）在原形后加t或d：
spoil-spoilt-spoilt learn-learnt-learnt mean-meant-meant hear-heard-heard
pay-paid-paid say-said-said lose-lost-lost lay-laid-laid
4）原形中的元音字母和輔音字母都有變化：
feel-felt-felt smell-smelt-smelt spell-spelt –spelt keep-kept-kept
sleep-slept-slept sweep-swept-swept leave-left-left sell-sold-sold
tell-told-told catch-caught-caught teach-taught-taught buy-bought-bought
bring-brought-brought think-thought-thought wear-wore-worn
5）與原形相同：
hit-hit-hit hurt-hurt-hurt let-let-let put-put-put read-read-read
set-set-set shut-shut shut cost-cost-cost cut-cut-cut
還有些不規則動詞的過去分詞與過去式不相同,為便于記憶,也分類如下:
1）原形中的元音字母有變化：
ring-rang-rung sing-sang-sung drink-drank-drunk swim-swam-swum
begin-began-begun sink-sank-sunk
2）在原形上加－en：
eat-ate-eaten fall-fell-fallen ride-rode-ridden write-wrote- written
be-was/were-been rise-rose-risen forget-forgot-forgotten
3：在原形上加－n：
see-saw-seen give-gave-given drive-drove-driven take-took-taken
mistake-mistook-mistaken draw-drew-drawn blow-blew-blown