3、动词

A) 第三人称单数

当动词是第三人称单数时，动词应该像名词的单数变动词那样加s，如下：

一)一般在词后加s。如：comes, spells, waits, talks, sees, dances, trains

二)在x, sh, ch, s, tch后加es。如：watches, washes, wishes, finishes

三)1)以辅音字母加y结尾的变y为i再加es。如：study-studies, hurry-hurries, try-tries

2)以元音字母加y结尾的直接加s。如：plays, says, stays, enjoys, buys

四)以o结尾加es。如：does, goes

五)特殊的有：are-is, have-has

B) 现在分词

当我们说某人正在做什么事时，动词要使用分词形式，不能用原形，构成如下：

一)一般在后加ing。如：spell-spelling, sing-singing, see-seeing, train-training, play-playing, hurry-hurrying, watch-watching, go-going, do-doing

二)以不发音e的结尾的去掉e再加ing。如：dance-dancing, wake-waking, take-taking, practice-practicing, write-writing, have-having

三)以重读闭音节结尾且一个元音字母+一个辅音字母(注意除开字母组合如show –showing, draw-drawing)要双写最后的辅音字母再加ing。如：put-putting, run-running, get-getting, let-letting, begin-beginning

四)以ie结尾的变ie为y再加ing。如：tie-tying系　die-dying死　lie-lying 位于

4、形容词的级

我们在对两个或以上的人或物进行对比时，则要使用比较或最高级形式。构成如下：

一) 一般在词后加er或est(如果是以e结尾则直接加r或st)。如：greater-greatest, shorter –shortest, taller –tallest, longer –longest, nicer- nicest, larger -largest

二)以重读闭音节结尾且1个元音字母+1个辅音字母(字母组合除外，如few-fewer fewest)结尾的双写结尾的辅音再加er /est。如：big-bigger biggest, red-redder reddest, hot-hotter hottest

三) 以辅音字母+y结尾的变y为i加er/est。如：happy-happier happiest, sorry-sorrier sorriest, friendly-friendlier friendliest(more friendly most friendly), busy-busier busiest, easy-easier easiest

四)特殊情况：(两好多坏，一少老远)

good/well - better best many/much - more most 　bad/ill – worse worst

little- less least old- older/elder oldest/eldest far- farther/further farthest/furthest

5、数词 (基变序，有规则;一、二、三，自己背;五、八、九、十二;其它后接th;y结尾，变为i, eth跟上去。) first, second, third; fifth, eighth, ninth, twelfth; seventh, tenth, thirteenth, hundredth; twenty-twentieth, forty-fortieth, ninety-ninetieth

二、句式

1.陈述句

肯定陈述句 a) This is a book. (be动词)

b) He looks very young. (连系动词)

c) I want a sweat like this. (实义动词)

d) I can bring some things to school. (情态动词)

e) There’s a computer on my desk. (There be结构)

否定陈述句 a) These aren’t their books. b) They don’t look nice.

c) Kate doesn’t go to No. 4 Middle School. d) Kate can’t find her doll.

e) There isn’t a cat here. (=There’s no cat here.)

2. 祈使句

肯定祈使句 a) Please go and ask the man. b) Let’s learn English!

c) Come in, please.

否定祈使句a) Don’t be late. b) Don’t hurry.

3. 疑问句

1) 一般疑问句 a) Is Jim a student?　　b) Can I help you? c) Does she like salad?

d) Do they watch TV? e) Is she reading?

肯定回答: a) Yes, he is. b) Yes, you can. c) Yes, she does. d) Yes, they do. e) Yes, she is.

否定回答: a) No, he isn’t. b) No, you can’t. c) No, she doesn’t. d) No, they don’t. e) No, she isn’t.

2) 选择疑问句 Is the table big or small?　　回答 It’s big./ It’s small.