六年级知识点梳理频度副词 always/sometimes/usually/never 是频度副词 ，提问应该要用 How often?在句中的位置是：放在行为动词的前面，放在 be 动词的后面。也可以说“行前系后”。E.gShe is always kind.她总是很善良的。She always helps other people.她总是帮助其他人。不能出现这样的句子：She is always helps other people.(×)一句话中不能同时出现两个动词。并且要注意主谓保持一致，尤其注意第三人称单数不可以忽略。how often 与 how many timeshow often 提问“频率次数+时间范围”how many times 提问“频率次数”e.g. —How often do you exercise?—Twice a week.—How many times have you been there?—Twice.副词表示动作特征或性状特征。一般用来形容或修饰除了名词和代词以外的词，主要修饰形容词、动词、其他副词和句子。He looks very happy.（修饰形容词）The old lady is walking slowly now.（修饰动词）Luckily, he got the first prize.（修饰句子）形容词后面+ly 构成副词:slow—slowlyslight—slightlyquick—quicklycareful—carefullyfierce—fiercelyimmediate—immediatelygentle—gentlylucky—luckilyhappy—happily介词What else do you do with your„?你和你的„还干什么？With 是个介词，后面接人称代词时，要用宾格的形式。With me/him/her/it/us /them 在具体的某一楼层只能用介词 on，并且第几层还要用序数词 On the ground floor, on the first floor, on the fifteenth floor具体的某一天介词只能用 onOn Sunday, On Sunday morning,On the Open Dayhe one on the left/right 左边/右边的这个 the one in the middle 中间的这个如果是介词短语修饰 the one，应该要放在 the one 后面 ，如果是形容词应放the one 的中间 the left/right one the middle one at weekends= at the weekend 在周末现在完成时现在完成时的构成是： have/has +动词的过去分词。have/has beento 去过，到过 (表示现在已经回来)have/has been in 住在 = have lived / stayed inhave/has gone to 去，到….. (表示现在还没有回来)e.g. We have already been to Changfeng Park.I have lived in Shanghai for thirteen years.Have you been to …..yet? 你去...
