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Unit 4Stories and Poems冀 教 版 单元同步语法精讲精练 1过去进行时的用法过去进行时表示在过去某一时刻或某一阶段正在进行或持续进行的动作，一般要与表示过去的时间状语连用，如this time yesterday, at that time, at 5 yesterday afternoon等。I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。 2过去进行时的构成过去进行时由“be动词的过去式was/were现在分词”构成。各种句式结构如下： We were having supper when the phone rang.我们正在吃晚饭时电话响了。Lisa wasnt listening to music at that time. 莉萨那时没有在听音乐。Was she watching TV at that time？她那时正看电视吗？Yes, she was. 是的。No, she wasnt.不，不是。What were you doing at 5p.m. yesterday？昨天下午5点你在干什么？Who was singing at that time？那时谁在唱歌？ 3一般过去时和过去进行时的区别 (1)一般过去时表示在过去某个时间发生的动作或存在的状态，常与之连用的时间状语有：just now, a moment ago, yesterday, last week, the day before yesterday等。I went to the park yesterday.昨天我去公园了。(2)过去进行时表示在过去某一时刻或某一段时间正在进行的动作。常与之连用的时间状语有：at that time, at this time yesterday/last night, at点钟yesterday/last night等。What were you doing at seven pm. yesterday？昨天晚上七点钟你正在干什么？ 情态动词must1情态动词must表示“必须，应该”，常用于疑问句中，肯定回答用must，否定回答用neednt或dont have to，表示“不必，用不着”。它的否定式mustnt表示“禁止”。Must I finish the homework before seven oclock？七点以前我必须完成家庭作业吗？Yes， you must.是的，你必须。No， you neednt./dont have to.不，你不必。 2 must表示推测，暗含很大的可能性，意为“一定是”，只用于肯定句中，其否定形式cant表示“不可能”。He must be ill. He doesnt come to school.他准是病了，他没来上学。 一、用括号内所给单词或短语的适当形式填空。1 (2017江苏宿迁)I _(wash) the dishes while my sister was sweeping the floor.2 (2016湖北鄂州)Did you watch Euro 2016 last night?No, I _(study) for the exams at that time.3 (2016江苏无锡)Mary _(talk) on the phone, so I just nodded to her and went away.was washingwas studying was talking 4 (2016甘肃白银)While Mr. Johnson was _(work) in the office, the phone rang.5 (2016江苏连云港中考改编)Were your parents at home then, Philip?Yes, they _(have a chat with) their friends when I got home. workingwere having a chat with 二、单项选择。( )6.(2018河北九年级第一次模拟大联考)When traffic lights are red, we _ stop and wait.A may Bcan Cmust Dmight( )7.(2017北京)_ I hand in the report today?No, you neednt.A Can BMust CShall DCouldCB ( )8.(2017石家庄28中中考模拟)How did the accident happen?The girl _ WeChat while walking across the street.A reads Bis readingC read Dwas reading( )9.(2017四川成都)Did you hear someone knock at the door just now?Sorry. I _ to my friend on the phone.A was talking BtalkedC am talkingDA ( )10.(2017四川达州)Whats the matter, Jack?I _ down while I _ on the ice. I got hurt badly.A was falling; skatedB fell; was skatingC fell; skatedD was falling; skatingB
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