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1、小升初单词的主要变化(2-3次课)元音字母a,e,i,o,u辅音字母b,c,d,f,g,h,j,k,l,m,n,p,q,r,s,t,v,w,x,z.一、动词+s的变化规则1.一般情况下，直接加-s，如：cook-cooks,milk-milks2.以s.x.sh.ch.o结尾，加-es，如：guess-guesses,wash-washes,watch-watches,go-goes3.以“辅音字母+y”结尾，变y为i,再加-es，如：study-studies4.以“f或fe”结尾，变f或fe为v,再加-es，如：knife-knives5.
2、不规则名词复数：man-men, woman-women, policeman-policemen, policewoman-policewomen, mouse-mice,child-children, foot-feet, tooth-teeth, fish-fish, people-people, Chinese-Chinese, Japanese-Japanese不可数名词的复数就是原型：paper, juice, water, milk, rice, tea练习：1.window-desk-apple-picture-2.to
3、mato-potato-peach-teach-3.country-family-study-life-二、动词的过去式的构成规则有：A、规则动词① 一般直接在动词的后面加ed：如 worked,learned,cleaned,visited② 以e结尾的动词直接加d：如 lived,danced,used③ 以辅音字母+y结尾的动词要改y为i再加ed(此类动词较少)如 study–studiedcarry–carriedworry–worried (注意play、stay不是辅音字母加y,所以不属于此类)④ 双写最后一个字母(此类动词
4、较少)如 stopped练习：play-listen-read-like-Ready-try-swim-plan-B、不规则动词(此类词并无规则，须熟记)小学阶段要记住以下动词的原形和过去式：sing–sang, eat–ate,see–saw,have–had,do–did,go–went,take–took,buy–bought,get–got,read–read，fly–flew,am/is–was,are–were,say–said,leave–left,swim–swam,tell–told,draw–drew,come–came,
5、lose–lost,find–found,drink–drank,hurt–hurt,feel–felt，can-could三、动词的ing形式的构成规则：① 一般的直接在后面加上ing,如doing,going,working,singing,eating②以e结尾的动词，要先去e再加ing ，如having,writing③双写最后一个字母的(此类动词极少)有：running,swimming,sitting,getting练习：play-clean-watch-love-Smile-take-cut-put-四、形容词加er的规则：⑴
6、一般在词尾加er，如old-older,dark-darker,bright-brighter;⑵以字母e结尾，加r，如brave-braver,nice-nicer;⑶以一个元音字母和一个辅音字母结尾，应双写末尾的辅音字母，再加er，如big-bigger,thin-thinner,hot-hotter;⑷以“辅音字母+y”结尾，先把y变i，再加er，如happy-happier,heavy-heavier,early-earlier。3.不规则形容词比较级：good-better,beautiful-morebeautiful,diffic
7、ultly-moredifficultly,popular-morepopular(二)副词的比较级副词比较级的变化规则基本与形容词比较级相同(不规则变化：well-better,far-farther)练习：long-cold-small-large-Fat-wet-hungry-busy-Important-useful-quickly-五、小升初常见的同音词：1. sea -see2. know -no3. meat -meet4. for -four5. I -eye6. buy -bye7. too -two/to8. wear -w
8、here9. sun -son10. hour -our11. deer -dear12. flower -flour13. there -their
