一．一般过去时：
1. 用法：
(1)一般过去时表示过去某个时间或时间段内发生的动作或存在的状态；常与表示过去的时间状语连用，如yesterday, last night, two days ago, in 1990, before等。
e.g. I visited my grandparents last night.
He got up at 6:30 yesterday.
⑵一般过去时也表示过去经常或反复发生的动作。
e.g. He always went to school by bus last year.
I was often late for school before.
2. 时间状语（标志词）：
(1)last（上一个） +表示时间的单数可数名词(day/month/ week /year等)；
e.g. last day昨天 = yesterday
last year去年
last week上个周
(2)时间段+ ago(以前)，表示“多长时间以前”；
e.g. three days ago三天以前；
five weeks ago五周前
one month ago一个月以前
(3) in +过去的年份，表示在哪一年；
e.g. in 1998 在1998年
in 2020 在2020年
(4)in the past在过去；
(5)then = at that moment在那时
3.谓语动词形式：
(1)be动词: was(am/is的过去时); were(are的过去时)；
(2)实义动词：过去式形式：
e.g. Tom went to school yesterday.
We were classmates three years ago.
Everything went well at that moment.
4. 一般过去时肯定句转换为否定句，疑问句及疑问句的肯定和否定回答；
(1)含有be动词（was/were）的陈述句变为一般疑问句，直接把be动词提到句首,然后把“.”变“?”即可，其中第一人称I和we要相应的变为第二人称you。肯定及否定回答用相对应的be动词来回答就可以了；若是肯定句变为否定句，直接在be动词后面加not，可缩写，可全称；否定回答只能用缩写；
e.g. 肯定句: Tom and Mary were friends before.
否定句: Tom and Mary were not/weren’t friends before.
一般疑问句: Were Tom and Mary friends before?
肯定回答: Yes, they were.
否定回答: No, they weren’t.
(2)含有实义动词的陈述句变为一般疑问句需要请助动词(did)，然后把助动词提到句首，后面的实义动词必须变为原形；肯定回答和否定回答也用相应地助动词来回答，注意否定回答必须用缩写；若是肯定句变为否定句直接在助动词did后面加not变为否定形式，放于谓语动词之前，但切记请了助动词，后面的谓语动词必须变为原形。
e.g.①肯定句: I went to the zoo yesterday.
否定句: I did not go to the zoo yesterday.
一般疑问句: Did you go to the zoo yesterday?
肯定回答: Yes, I did.
否定回答: No, I didn’t.
②肯定句: She visited her uncle last year.
否定句: She didn’t visit her uncle last year.
一般疑问句: Did she visit her uncle last year?
肯定回答: Yes, she did.
否定回答: No, she didn’t.
③肯定句: The apples were good.
否定句: The apples were not good.
一般疑问句: Were the apples good?
肯定回答: Yes, they were.
否定回答: No, they weren’t.
5．动词过去式（过去分词）的转化:
(1)规则动词的转化规则：
①一般情况下直接加ed；
e.g. look----looked
play----played
start----started
②以e结尾的动词加d；
e.g. live----lived
hope----hoped
use----used
face----faced
③以重读闭音节结尾的，末尾只有一个辅音字母的，双写这个辅音字母，再加ed；
e.g. stop----stopped
plan----planned
permit----permitted
beg----begged
④以辅音字母加y结尾的动词，变y为i再加ed。
e.g. study----studied
carry----carried
worry----worried
(2)不规则动词的变化规则，需特殊记忆：
①原形，过去式和过去分词形式相同：
e.g. hit----hit----hit
set----set----set
put----put----put
cut----cut----cut
cast----cast----cast
cost----cost----cost
shut----shut----shut
hurt----hurt----hurt
burst----burst----burst
spread----spread----spread
②过去式和过去分词同形：
e.g. feed----fed----fed
bleed----bled----bled
bend----bent----bent
buy----bought----bought
breed----bred----bred
fight----fought----fought
bring----brought----brought
catch----caught----caught
sell----sold----sold
leave----left----left
meet----met----met
send----sent----sent
find----found----found
sleep----slept----slept
teach----taught----taught
think----thought----thought
③原形，过去式和过去分词均不相同：
e.g. lie----lay----lain
see----saw----seen
rise----rose----risen
give----gave----given
begin----began----begun
blow----blew----blown
know----knew----known
grow----grew----grown
break----broke-----broken
drink----drank----drunk
speak----spoke----spoken
swim----swam----swum
二．单项选择题专练：