《七年级英语下册同步课堂帮帮帮》专题12.3 Grammar（人教版）

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Unit 12 What did you do last weekend?
一般过去时
一般过去时的三种变化
　　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。
I could get you a concert ticket.
我能给你一张音乐会的票。
→I could not / couldn’t get you a concert ticket.
我不能给你一张音乐会的票。
　　【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。
I was on the Internet when you called me.
你给我打电话时我正在上网。[来源:学#科#网Z#X#X#K]
→I was not / wasn’t on the Internet when you called me.
你给我打电话时我没在上网。
【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。
The famous singer sang some Chinese songs.
这位著名歌星唱了几首中文歌曲。
→The famous singer did not / didn’t sing any Chinese songs.
这位著名歌星没唱任何中文歌曲。
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。
He could pack his things himself.
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他能自己打包自己的东西。
→Could he pack his things himself?
他能自己打包自己的东西吗？
【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。
Mr Li looked very old. [来源:Zxxk.Com]
李先生看起来很老。
→Did Mr Li look very old?
李先生看起来很老吗？
　　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 wh en / what time，原因 why，频
率how often，长度 how long，距离 how far 等等。
They gave the concert last night.
他们昨晚举办了音乐会。
→When did they give the concert?
他们什么时候举办了音乐会？
　　【技巧 2】辨认结构形式：疑问词+情态动词/助动词/ was / were / did +主语+...?
The accident happened near the station.
那起事故发生在车站附近。
→Where did the accident happen.
那起事故是在哪儿发生的？
一、用所给单词的正确形式填空
1．My friend_________(leave) the school an hour ago.
2．She _______ (pick) up the dictionary and began to look up the new word in it.
3．Although Lucy tried her best to lose weight, she didn’t_______________ (success).
4．Tim is a manager now，but he once ________ (serve) as an engineer for five years．
5．In the playground, I threw the ball to her and she _________ (catch) it.
6．_______you_______ (ask) questions just now?
2
7．What _______ he _______ (do) last night?
8．I didn’t leave until mom _________ (wake) up.
9．We were enjoying the nice drink when John _________ (break) a glass.
10．Dan and Lingling ________ (reach) the island by boat yesterday afternoon.
11．—I ________ (write) something wrong just now. May I use your eraser?
—Sure! Here you are.
12．Finally the workers ______________ (finish) that job.
13．The glass is broken. Who ________ (break) this glass?
14．Sorry, I _______ (not see) the sign "No spitting".
15．I _______ (forget) to bring my English book, and I have left it at home,
16．Yesterday Tom ________（tell）me that his bike ________（break）last week.
17．My grandparents used to ________(live) in the country, but now they are used to ________ in the city.
18．Jimmy ______ (win) an award from the World Bank last year.
19．Nobody _________ (want) to spend time on such a thing.
20．Jack ________（fall）off his bike and hurt his knee badly.
二、完成句子
21．修车花了多长时间？
________ ________ did it ________ to repair the car?
22．他们一直等到所有的学生到达那里才离开。
They didn't leave ________ all the students ________ there.
23．她试着用英语和外国人交谈。
She ________ with the foreigners in English.
24．昨天一个乞丐敲我的门。
Yesterday a beggar ________ my door.
25．他决定长大以后要当一名医生。
He ________ a doctor when he grew up.
三、改写句子
26．Jessie asks, “Did the ancient Greeks win the battle through a trick?”（合并为一句）
Jessie asks _____ the ancient Greeks _____ the battle through a trick.
27．Jane spent the whole afternoon preparing for the piano concert yesterday.（改为否定句）
Jane ______ the whole afternoon preparing for the piano concert yesterday.
3
《七年级英语下册同步课堂帮帮帮》专题12.3 Grammar（人教版）.doc

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