名詞復數(shù)規(guī)則
1.一般情況下,直接加-s,如:book-books, bag-bags, cat-cats, bed-beds
2.以s. x. sh. ch結尾,加-es,如:bus-buses, box-boxes, brush-brushes, watch-watches
3.以“輔音字母+y”結尾,變y為i, 再加-es,如:family-families, strawberry-strawberries
4.以“f或fe”結尾,變f或fe為v, 再加-es,如:knife-knives
5.不規(guī)則名詞復數(shù): man-men, woman-women, policeman-policemen, policewoman-policewomen, mouse-mice child-children foot-feet,.tooth-teeth fish-fish, people-people, Chinese-Chinese, Japanese-Japanese
動詞過去式變化規(guī)則:
1.一般在動詞末尾加-ed,如:pull-pulled, cook-cooked
2.結尾是e加d,如:taste-tasted
3.末尾只有一個元音字母和一個輔音字母的重讀閉音節(jié),應雙寫末尾的輔音字母,再加-ed,如:stop-stopped
4.以“輔音字母+y”結尾的,變y為i, 再加-ed,如:study-studied
5.不規(guī)則動詞過去式:
am,is-was, are-were, do-did, see-saw, say-said, give-gave, get-got, go-went,
come-came, have-had, eat-ate, take-took, run-ran, sing-sang, put-put,
read-read, write-wrote, draw-drew, drink-drank, swim-swam, sit-sat
現(xiàn)在進行時
1.現(xiàn)在進行時表示現(xiàn)在正在進行或發(fā)生的動作,也可表示當前一段時間內(nèi)的活動或現(xiàn)階段正在進行的動作。
2.現(xiàn)在進行時的肯定句基本結構為be+動詞ing.
3.現(xiàn)在進行時的否定句在be后加not。
4.現(xiàn)在進行時的一般疑問句把be動詞調(diào)到句首。
動詞加 ing 的變化規(guī)則
1.一般情況下,直接加ing,如:cook-cooking
2.以不發(fā)音的e結尾,去e加ing,如:make-making, taste-tasting
3.如果末尾是一個元音字母和一個輔音字母,雙寫末尾的輔音字母,再加ing,如:run-running, stop-stopping