初一英語語法知識點
想學好初一英語,其中語法的學習是一項重要的內容。下面是學習啦小編為大家收集整理的初一英語語法的知識點,相信這些文字對你會有所幫助的。
初一英語語法知識點(一)
助動詞(do, does)的用法只有實意動詞作謂語時才涉及使用助動詞。以like為例:
(1)當句子為肯定句時不涉及使用助動詞,只涉及"主謂一致"原則。
eg : I like English a lot.
Michael likes Chinese food very much.
(2)當句子為否定句時,要根據(jù)主語的人稱來決定使用相應的助動詞:當主語為"三單"時,要使用does;當主語為"非三單"時,用助動詞原形do。例如把下列句子變否定句:
Kangkang likes math.----Kangkang doesn't like math.
They like sports.------They don't like sports.
(3)當句子變疑問句時,同樣要根據(jù)句子的主語來決定在句首使用Do或Does.例如下列句子變問句:
Michael likes Chinese Food.----Does Michael like Chinese food? Yes, he does./ No, he doesn't.
Jane and Helen like music.----Do Jand and Helen like music? Yes, they do./ No, they don't.
初一英語語法知識點(二)
可數(shù)名詞變復數(shù)時,有規(guī)則變化和不規(guī)則變化兩種。
1、規(guī)則變化:
(1)一般情況直接在詞尾加"-s ",如:cake-cakes, bag-bags, day-days, face-faces, orange-oranges等;
(2)以s, x, sh, ch結尾的詞,要在詞尾加"-es ",如:bus-buses, watch-watches, box-boxes等;
(3)以輔音字母加y結尾的詞,變y為i再加"-es ",如:baby-babies, country-countries, family-families等;
(4)部分以f (e)結尾的詞,變f (e)為"ves ",如:knife-knives, half-halves等;
(5)以o結尾的詞,加"-s "或"-es ",如:zoo-zoos, photo-photos, tomato-tomatoes, potato-potatoes等。記憶口訣:除了"英雄"hero外,凡是能吃的,加"-es ",不能吃的加"-s "。
2、不規(guī)則變化:
(1)改變單數(shù)名詞中的元音字母:man-men, woman-women, foot-feet, tooth-teeth等;
(2)單、復同形:sheep-sheep, Chinese-Chinese, Japanese-Japanese等;
(3)其他形式:mouse-mice, child-children等。
初一英語語法知識點(三)
1. 名詞變復數(shù)規(guī)則
(1)規(guī)則變化
1)一般在名詞詞尾加--s,如:car----cars; photo---photos; toy---toys; boy---boys
2)以s, x, ch, sh結尾的詞,在詞尾加---es,如:box---boxes; bus---buses
3)以輔音字母+y結尾,變y為i再加es,如:baby---babies; family---families
4)以fe結尾,變fe為v再加es,如:knife--- knives
(2)不規(guī)則變化:
如:foot---feet; man---men; woman---women; snowman---snowmen;
2. 集體名詞:people, clothes, police, family
3. 成雙出現(xiàn)的名詞:shoes, pants(trousers), gloves, eyes, ears
一詞多義:An orange is orange.
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