一周知识总结
作文开头十二妙法,值得为孩子收藏!
1、some
用于肯定句中,在否定句和问句中改为any,但当表示委婉语气时仍用。
如:Can I have some writing paper? Would you like some orange juice?
2 、代词
人称代词主格做主语用一般放在句首或动词前。
主格分别是 I ,you, he, she, it ,we ,you ,they。
宾格做宾语用,一般放在动词或介词后。
宾格分别是me ,you, him, her ,it, us ,you ,them。
如:Open them for me.Let us …, join me等。
形容词性物主代词放在名词前,不能单独使用。
分别是my ,your, his ,her, its, our, your, their。
名词性物主代词相当于形物加名词,它只能单独使用后面不好加名词。
分别是mine ,yours ,his, hers ,its, ours, yours ,theirs。
3 、介词
介词后要么不加动词,加动词只能加动词ing形式。
如:be good at running;
do well in jumping.
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4 、时间介词
季节前,月份前用介词in。
如:in summer;in March
具体的哪一天如星期几,几月几日用介词on。
如:on Saturday; on the second of April; on Wednesday morning
在几点钟前用介词at。
如:at a quarter to four;
只在上下午晚上用in
如:in the morning/ afternoon/ evening;但在夜间用at night。
另:季节,月份和星期前不好加the.
5、 名词复数的构成方法
有规则的有:
(1)直接在名词后加s
如orange—oranges; photo—photos
(2) 以x, s, sh, ch 结尾的加es
如:box—boxes; glass—glasses; waitress—waitresses; watch—watches;peach--peaches
(3) 以辅音字母加y结尾的改y为i加es
如:study—studies;library—libraries; hobby—hobbies; family—families
(4)以f, fe结尾的改f, fe 为v es
如:knife—knives; thief—thieves
(注:以o结尾的我们学过的只有mango加es, mango—mangoes其余加s,)
不规则的有:
man—men; woman—women; people—people; child—children
6、 动词第三人称单数的构成
(1)直接在动词后加s
如:run—runs; dance—dances
(2)以s,sh,ch,o结尾的加es
如:do—does;go—goes;wash—washes;catch—catches
(3)以辅音字母加y结尾的改y为i加es
如:study—studies; carry—carries
7、现在分词的构成
(1)直接在动词后加ing
如:sing—singing; ski—skiing
(2)双写词尾加ing
如:swim—swimming; jog—jogging;run—running
(3)以不发音的e结尾的去e加ing
如:ride—riding; dance—dancing; make—making
8、 规则动词过去式的构成
(1)直接在动词后加ed
如:clean—cleaned; milk—milked; play—played
(2)以e结尾的直接加d
如:dance—danced; taste—tasted
(3) 以辅音字母加y结尾的改y为i加ed
如:study—studied;carry—carried
(4)双写词尾加ed
如:stop—stopped; jog—jogged
不规则的有:
am,is—was; are—were; do,does—did; have,has—had; go—went; meet—met; sit—sat; see—saw; get—got; tell—told; run—ran; come—came; steal—stole; read—read
9 、形容词副词比较级的构成
规则的:
(1)直接在形容词或副词后加er
如:small—smaller; low—lower
(2)以e结尾的加r
如:late—larer
(3)双写词尾加er
如:big—bigger; thin—thinner; fat—fatter
(4) 以辅音字母加y结尾的改y为i加er
如:heavy—heavier; early—earlier
不规则的有:
good, well—better(最高级为best); many, much--- more(最高级为most); far---farther
10、 Rain和Snow的用法
(1)作为名词意思是雨水和雪是不可数名词
如:There is a lot of rain there in spring. 那儿的春天有很多雨水。
(2) 作为动词意思是下雨和下雪,有四种形式分别是:
动词原形rain, snow;
第三人称单数rains ,snows;
现在分词raining; snowing;
过去式rained; snowed。
如:①Look! It is raining now. 瞧!天正在下雨。
②It often rains in Nantong in summer.南通夏天经常下雨。
③ It rained yesterday.昨天下了雨。
④It is going to rain tomorrow. 明天要下雨。
3)形容词为rainy 和snowy 意思是有雨的和有雪的
如:It is often rainy here in spring.这儿的春天经常是有雨的。
If it is rainy tomorrow, I’ll stay at home.如果明天是有雨的,我将呆在家里。