六年级下册英语Unit-3单元知识梳理

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六年级下册单元知识点

第三单元

四会单词:watch—watched 看wash—washed 洗clean—cleaned打扫play—played玩visit—visited 看望do—did last weekend上一个周末go—went去

go to a park—went to a park 去公园go swimming—went swimming去游泳

go fishing—went fishing去钓鱼read—read 读go hiking—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.是的,我读了。

No, I didn’t.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, I didn't. (不,我没回家。)

(3)助动词和情态动词过去式如下:

shal l― 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ed。如:play― played work― worked2)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.如: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[t]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 Interne t 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did。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

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