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单元语法：一般过去时
一、一般过去时核心用法梳理
知识点 主要内容 用法说明
核心定义 描述过去特定时间发生的动作/状态，或过去习惯性、经常性的动作。 动作/状态已结束，与现在无直接联系。例：① He went to Beijing yesterday.（特定动作）② She often walked to school last term.（习惯动作）
谓语动词构成 1. 规则动词：+ed（有特殊拼写规则）2. 不规则动词：需记忆特殊过去式 规则动词变化：① 直接+ed：work→worked② 以e结尾+ d：live→lived③ 重读闭音节双写尾字母+ed：stop→stopped④ 辅音+y结尾变y为i+ed：study→studied不规则动词例：go→went；eat→ate
常用时间标志词 1. 具体时间：yesterday、last week/month、the day before yesterday2. 时间短语：at 8 o'clock yesterday morning、a moment ago 出现这些词时，句子用一般过去时。例：They finished their homework a moment ago.
二、一般过去时句式结构
1. 肯定句
结构：
① 主语 + 规则动词过去式 + 其他
② 主语 + 不规则动词过去式 + 其他
③ 主语 + was/were + 表语（形容词/名词/介词短语）
例：
① Tom cleaned his room last weekend.（规则动词）
② Lily saw a film yesterday evening.（不规则动词）
③ She was happy at the party.（be动词was）
2. 否定句
结构：
① 实义动词：主语 + didn’t + 动词原形 + 其他
② be动词：主语 + wasn’t/weren’t + 表语 + 其他
例：
① He didn’t play football.（didn’t后接动词原形）
② They weren’t late.（be动词否定）
3. 一般疑问句
结构：
① 实义动词：Did + 主语 + 动词原形 + 其他？
② be动词：Was/Were + 主语 + 表语 + 其他？
例：
① —Did she watch TV last night —Yes, she did. / No, she didn’t.
② —Was he at home yesterday —Yes, he was. / No, he wasn’t.
4. 特殊疑问句
结构：
① 实义动词：特殊疑问词 + did + 主语 + 动词原形 + 其他？
② be动词：特殊疑问词 + was/were + 主语 + 其他？
例：
① —What did you do last Saturday —I visited my grandparents.
② —Where were you last night —I was in the library.
三、常见易错点
be动词过去式混用：was用于I/He/She/It；were用于You/We/They
否定句错误：实义动词否定时，需用“didn’t + 动词原形”（不可用过去式）
不规则动词混淆：需单独记忆（如go→went；see→saw）
无时间标志词：未出现过去时间词时，不能随意用一般过去时
单元写作：通过帮助他人获得快乐的小故事
一、写作主题
围绕“帮助家人/他人并收获快乐”，讲述具体事例，体现亲情/友善，传递“助人即乐”的核心情感。
二、内容要点
开头（引入）：介绍家庭成员及日常状态（如妈妈忙碌、爸爸辛苦），为“帮助”做铺垫。
中间（叙事）：详细描述帮助他人的过程：
事件起因（如妈妈生病、周末家务多）
具体动作（分2-3个步骤，如先扫地、再做饭）
他人的反应（如妈妈微笑、爸爸表扬）
结尾（感悟）：写出帮助后的心情，理解“家庭互助”的意义，表达未来继续帮助的意愿。
三、写作思路（分段模板）
段落 写作任务 核心内容 句型提示
开头段 介绍家庭成员，铺垫背景 家庭构成+家人日常状态 There are... people in my family. They are...My mother usually... / My father works hard every day.
中间段 描述帮助他人的过程 起因+动作步骤+他人反应 Last Saturday, my mother was ill, so I decided to...First, I... Then, I...When my mother saw it, she... with a smile.
结尾段 表达感受与收获 心情+对互助的理解+未来意愿 I felt very happy because I could help my family.Helping others makes me happy. / I will try my best to help my family more.
四、写作步骤
确定素材：选贴近生活的事例（如帮妈妈做家务、照顾生病的爸爸），明确亲情主题。
列提纲：按“开头-中间-结尾”梳理内容（如开头介绍家庭，中间写帮妈妈做饭，结尾写感悟）。
组句成文：用一般过去时（讲述过去事件），用简单句表达（如“I helped my mother clean the room”）。
检查修改：核对动词过去式、名词单复数，确保内容完整、情感真实。
五、范文示例
Life Is Full of Love
There are three people in my family: my father, my mother and me. My mother is a worker and she always cleans the house after work. My father works hard every day.
Last Sunday, my mother felt ill. I decided to help her do the housework. First, I swept the floor carefully. Then, I washed the dishes in the kitchen. When my mother saw the clean room, she smiled and said, “You’re such a good kid!”
I felt very happy that day. I learned that helping others is the best way to get happiness. I will help my family more in the future.
六、写作技巧
细节描写：把动作写具体（如“I didn’t know how to cook, so I called my mother for help on the phone. She told me to put some water in the pot first.”）。
词汇升级：用“extremely happy”代替“very happy”，丰富语言。
过渡词衔接：用“So/Then/After that”连接段落，让逻辑更连贯。
升华主题：结尾加入对“互助”的理解（如“Helping each other makes our family warmer”）。
单元词汇与语法练习题
（一）用所给词的适当形式填空（共10小题）
He ______ (visit) his grandparents last weekend and had a good time.
The story was so ______ (excite) that all the students listened carefully.
She ______ (forget) to bring her homework to school this morning.
My mother often tells me that ______ (help) others can make us happy.
There are two ______ (pair) of scissors on the desk.
They ______ (be) not at home yesterday afternoon—they went to the park.
The little girl has a sweet ______ (voice) and she likes singing very much.
We ______ (not watch) TV last night; we read books instead.
Did you ______ (expect) to meet your old friend at the party
He felt ______ (freeze) when he waited for the bus in the rain.
（二）单项选择（共10小题）
( )1. —How was your school trip —It was ______. We took many photos.
A. excited B. exciting C. boring D. bored
( )2. She ______ her keys at home this morning, so she had to ask her mom to bring them.
A. forgot B. forgot to C. left D. left to
( )3. —What ______ you ______ last night —I studied for the English test.
A. do; do B. did; do C. do; did D. did; did
( )4. There ______ a lot of ______ in the street because of the festival.
A. were; noise B. was; noise C. were; sounds D. was; voices
( )5. My brother ______ a new bike yesterday. He ______ it to school now.
A. buys; rides B. bought; rode C. bought; is riding D. buy; is riding
( )6. —Why did she look —Because she won the singing competition.
A. excited B. exciting C. sad D. angrily
( )7. Don’t ______ to turn off the lights when you leave the room.
A. remember B. forget C. forgot D. remembered
( )8. — did you go to the zoo —Last Saturday.
A. What B. Where C. When D. How
( )9. The teacher’s ______ is very clear, so we can hear every word.
A. sound B. noise C. voice D. shout
( )10. They ______ fun playing football on the playground just now.
A. have B. had C. are having D. will have
（三）句型转换（共5小题）
He went to Shanghai last month.（对画线部分提问）
______ ______ he ______ to Shanghai
The film was very exciting.（改为感叹句）
______ ______ exciting film it was!
She forgot to call her friend.（改为否定句）
She ______ ______ to call her friend.
They had a picnic in the park.（改为一般疑问句）
______ they ______ a picnic in the park
We helped the old man cross the street.（对画线部分提问）
______ ______ you ______
练习题答案与解析
（一）用所给词的适当形式填空
visited 解析：last weekend是一般过去时标志词，visit的过去式为visited。
exciting 解析：修饰事物“故事”用exciting，excited修饰人。
forgot 解析：this morning提示用一般过去时，forget的过去式为forgot。
helping 解析：此处用动名词作主语，谓语动词用单数形式。
pairs 解析：two后接复数，pair的复数为pairs。
were 解析：yesterday afternoon是过去时标志，主语they对应were。
voice 解析：指人的嗓音用voice，为可数名词，前有a修饰用单数。
didn’t watch 解析：last night是过去时，否定句用“didn’t+动词原形”。
expect 解析：助动词did后接动词原形。
freezing 解析：feel后接形容词，freezing表示“极冷的”。
（二）单项选择
B 解析：修饰旅行“令人兴奋的”用exciting，excited修饰人。
C 解析：“把某物落在某地”用leave，过去式为left；forget后不接地点。
B 解析：last night是过去时，疑问句用助动词did，后接动词原形。
B 解析：noise为不可数名词，there be句型中用was；sound泛指声音，voice指嗓音，均不符合语境。
C 解析：yesterday提示第一空用过去式bought；now提示第二空用现在进行时。
A 解析：look后接形容词，赢比赛应是“兴奋的”，修饰人用excited。
B 解析：don’t后接动词原形，结合语境“不要忘记关灯”用forget。
C 解析：答语是时间，用when提问。
C 解析：指老师的嗓音用voice，sound泛指声音，noise指噪音。
B 解析：just now是过去时标志，have fun的过去式为had fun。
（三）句型转换
When did; go 解析：对时间提问用when，一般过去时疑问句用助动词did，后接动词原形。
What an 解析：感叹可数名词单数用“What a/an+形容词+名词+主语+谓语！”，exciting以元音音素开头用an。
didn’t forget 解析：一般过去时否定句用“didn’t+动词原形”。
Did; have 解析：一般过去时疑问句用助动词did，后接动词原形。
What did; do 解析：对动作提问用what，一般过去时疑问句用助动词did，后接动词原形。
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