一般现在时 表示经常反复发生的事情或动作，常与often, usually, sometimes, always, every day(week year ) on Sundays等词连用。 结构是主语+动词原形；当主语为第三人称单数即he,she, it, Tom, my mother, the b
一般过去时 表示发生在过去的事情或存在的状态，常与just now; a moment ago; ago; yesterday; last ( week; month; year; Monday; weekend); this morning等词连用。 结构是主语+be动词的过去式（was; were）或
一般将来时 表示将要打算发生的事情或动作，常与tomorrow, next week(year; Tuesday ), this week( weekend ;evening; afternoon; )today等词连用。结构是主语+be(am, is, are) going to + 动原或主语+will +动原。
情态动词 can; can t; should; shouldn t; must; may后一定加动词原形。 如：The girl can t swim, but she can skate. 女孩不会游泳，但是会滑冰 Don t talk in class, you should listen to the teacher carefull
想要做某事 用 would like +to+动原或want + to +动原。 例：I d like to visit the History Museum.=I want to visit the History Museum some 奥数网提醒： 小升初试题、期中期末题、小学奥数题 尽在奥数网公众号
比较级 注意只有同类事物才可进行比较。 如：My eyes are bigger than hers.Your school bag is heavier than mine. My computer is nicer than Nancy s. My brother is stronger than me. have, has 表示某人有(ha
Come here and look at these pictures. 过来看看这些照片。 This is a picture of a man, Mr Brown, and a boy, Richard. 这张是一个男人，布朗先生和一个男孩，理查德的照片。 Mr Brown is the father of Richard
