人教版PEP六年级英语下册Unit3单元知识梳理1
六年级下册单元知识点 第三单元 四会单 词: watch一watched 看 wash一washed 洗 clean一cleaned 打扫 play一played 玩 visit一visited 看望 do一did last weekend 上一 个周末go—went去 go to a park一went to a park 去公园 go swimming一went swimming 去游泳 go fishing一went fishing 去钓鱼 read—read 读 go hiking一went hiking去郊游 四会句型:What did you do last weekend?你上个周末干什么了 ? I played football,我踢足球了。 Did you read books?你读书了吗? Yes, I did.M的,我读了。 No,Ididnt不,我没有。 应该掌握的知识点: 1、关于一般过去时 一般过去时态:表示过去某一时间所发生的动作或存在的状态。谓 语动词要用一般过去式。经常与yesterday (昨天),last week (上周), last month (上个月),last year (去年),two months ago (两个月前), the day before yesterday (前天),in 1990 (在 1990 年),in those days (在 那些日子里)等表示过去的时间状语连用。 如:I was born in 1990.(我出生在 1990 年)。 When did you go to the park?(你是什么时候去的公园)。 I went to the park last week.(我是上周去的公园) 在上面的句子中第一句属于be动词的一般过去时态;第二句和第 三句属于实义动词的一般过去时态。 (1)Be动词的一般过去时态 在没有实义动词的句子中使用be动词,am is的过去式为was; are 的过去式为were. 构成:肯定句:主语+was (were) +宾语 如:I was late yesterday.(昨天我迟到了。) 否定句:主语+was (were) +not+宾语 如:We weren t late yesterday.(我们昨天没迟到) 疑问句:Was (Were) +主语+宾语 如: Were you ill yesterday?(你昨天病 了吗?) 肯定回答:Yes, I was.(是的,我病了。) 否定句:No, I wasn t.(不,我没病。) 特殊疑问句:特殊疑问词+was (were) +主语+宾语 如:When were you born?你是什么时候出生的? (2)实义动词的一般过去时态 肯定句要使用动词的过去式,否定句和疑问句要使用助动词do和 does的过去式did. 肯定句为:主语+动词过去式+宾语 如:I went home at nine o clock yesterday.(我昨天九点钟回的家。) 否定句:主语+didn t +动词原形+宾语 如:I didn t go home yesterday.(我昨天没回家。) 疑问句:Did+主语+动词原形+宾语 如:Did you go home yesterday?(你昨天回家了吗?) 肯定回答:Yes, I did.(是的,我回了。) 否定回答:No,【didn t.(不,我没回家。) (3)助动词和情态动词过去式如下: shall—should (将要)用于第一人称单数 will—would (将要)用于所有人称 can ?could (能,会)may— might (可以)must— must (必须) have to — had to (不得不) 助动词和情态动词的过去时态要使用他们的过去式,后面的动词还 使用原形。 如:I had to do my homework yesterday.(昨天我不得不做作业。) (4)一般过去时态由动词的过去式表示。大多数动词的过去式是 在动词原形后加上ed构成。这类动词称为规则动词。 1)一般情况下在词尾直接加edo如:play — played work— worked 2)以e结尾的动词只加d.如:like— liked love—loved 3)以辅音字母+Y结尾的动词,变Y为I,再加ed. study- studied carry— carried 4)以重读闭音节结尾的动词,如果末尾只有一个辅音字母,要双 写最后这个辅音字母,再加ed.如:stop —stopped (5) --ed的读音规则如下: 1) 在清辅音后面读[t]. 2) 在浊辅音或元音后读[d]. 3) 在田和[d]后读[id]. (6) 不以ed结尾的过去式,称为不规则动词。 一般过去时态的“三变”技巧 一变:肯定句变为否定句 【技巧1】当句中含有情态动词或助动词could, would, should等 时,可直接在其后面加not构成否定句。例如: I could get you a concert ticket. — I could not / couldn t get you a concert ticket. 【技巧2】当句中含有系动词was, were时,可直接在其后加not 构成否定句。例如: I was on the Internet when you called me. — I was not / wasn t on the Internet when you called me. 【技巧3]当句中谓语是除情态动词、助动词、系动词was, were 以外的动词时,在该动词之前加did not / didn t,动词还原,构成否定 句。例如: The famous singer sang some Chinese songs. — The famous singer did not / didn t sing any Chinese songs. 二变:陈述句变为一般疑问句 【技巧1】移动词语的位置。将was, were, could, would, should 等移到句首。例如: He could pack his things himself. — Could he pack his things himself? 【技巧2]添加助动词dido谓语是除情态动词、助动词、系动词 was, were以外的动词时,在主语之前加did,动词还原。例如: Mr Li looked very old. — Did Mr Li look very old? 三变:陈述句变为特殊疑问句 【技巧1】确定疑问词:人who / whom,物what,地点where,时 间 when / what time,原因 why,频率 how often,长度 how long,距 离how far等等。例如: They gave the concer