南通崇川区三中附近的小学英语暑假班

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;

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.

名词复数构成的方法

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,）