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1、单元语法归纳单元语法归纳1.1.过去进行时的概念过去进行时的概念:表示过去某个具体时刻正在进行的事情或动作。表示过去某个具体时刻正在进行的事情或动作。2.2.过去进行时的构成过去进行时的构成:主语主语+was/were+doing+was/were+doing(现在分词现在分词)+)+其他其他 肯定句式为肯定句式为:主语主语+was/were+was/were+动词的现在分词动词的现在分词+其他。如其他。如:They were playing basketball at that time.They were playing basketball at that time.那时他们正在打篮球。
2、那时他们正在打篮球。否定句式为否定句式为:主语主语+was/were+not+was/were+not+动词的现在分词动词的现在分词+其他。如其他。如:They were not playing basketball at that time.They were not playing basketball at that time.那时他们不在打篮球。那时他们不在打篮球。(一一)过去进行时过去进行时一般疑问句式为一般疑问句式为:Was/Were+:Was/Were+主语主语+动词的现在分词动词的现在分词+其他其他?如如:Were they playing basketball at that
3、 time?Were they playing basketball at that time?那时他们正在打篮球吗那时他们正在打篮球吗?特殊疑问句式为特殊疑问句式为:特殊疑问词特殊疑问词+was/were+was/were+主语主语+动词的现在分词动词的现在分词+其他其他?如如:What were they doing at that time?What were they doing at that time?他们那时正在干什么他们那时正在干什么?3.3.与过去进行时连用的时间状语与过去进行时连用的时间状语:this morning,at:this morning,at that time
4、,at this that time,at this time yesterday,the time yesterday,the whole morning,all day yesterday,from nine whole morning,all day yesterday,from nine to ten last evening,when,while to ten last evening,when,while等。等。(二二)情态动词情态动词mustmust1.1.表示表示“必须必须”,此时可用于肯定句或疑问句此时可用于肯定句或疑问句,用于否定句时用于否定句时,mustnt,mustnt
5、的意的意 思是思是“一定不要一定不要”“”“不能不能”,而不表示而不表示“不必不必”。如。如:Must we finish the work tonight?Must we finish the work tonight?我们必须今晚完成这项工作吗我们必须今晚完成这项工作吗?must must主要表示现在或将来主要表示现在或将来,但在间接引语中也可表过去但在间接引语中也可表过去(=had to)(=had to)。如。如:She asked her boss if she must(had to)work overtime.She asked her boss if she must(had
6、to)work overtime.她请示老板她是否要加班。她请示老板她是否要加班。对于对于mustmust开头的一般疑问句开头的一般疑问句,若作否定回答若作否定回答,可以用可以用neednt,neednt,不用不用 mustntmustnt。如。如:“Must I clean all the rooms?”“No,you neednt.”“Must I clean all the rooms?”“No,you neednt.”“这些房这些房 间我都得清扫吗间我都得清扫吗?”“?”“不必。不必。”2.2.表示推测意为表示推测意为“准是准是”“”“一定是一定是”,通常只用于肯定句。若用于否定句或通
7、常只用于肯定句。若用于否定句或 疑问句疑问句,则用则用can can 代之。如代之。如:The ground is wet.It The ground is wet.It must have rained last night.must have rained last night.地面湿了。昨晚一定下雨了。地面湿了。昨晚一定下雨了。That cant be Mr.Li.He has gone to Shanghai.That cant be Mr.Li.He has gone to Shanghai.那一定不是李先生。他去了上海。那一定不是李先生。他去了上海。3.must3.must与与ha
8、ve tohave to的区别的区别 两者都表示两者都表示“必须必须”,但但mustmust侧重于说话者的主观看法侧重于说话者的主观看法,认为有必要或有认为有必要或有 义务去做某事义务去做某事;have to;have to 则侧重于客观需要则侧重于客观需要,含有含有“不得不不得不”“”“被迫被迫”之之 意。如意。如:Everyone must keep the law.:Everyone must keep the law.人人都要守法。人人都要守法。The last bus has gone.WellThe last bus has gone.Well have to walk home.
9、have to walk home.最后一班车已经开走了。我们不得不走着回家了。最后一班车已经开走了。我们不得不走着回家了。一、单项选择一、单项选择()1.Susan and Lily()1.Susan and Lily tomatoes and other vegetables on the tomatoes and other vegetables on the farm this time yesterday.farm this time yesterday.(2014(2014上海上海)A.pick A.pickB.are picking C.will pickB.are pickin
10、g C.will pickD.wereD.were picking picking()2.I saw him in the library yesterday.He()2.I saw him in the library yesterday.He a book at that a book at that moment moment.(2013.(2013天津天津)A.reads A.readsB.is reading C.was readingB.is reading C.was readingD.willD.will read read()3.When I got home,my son(
11、)3.When I got home,my son the music.the music.A.am listening to A.am listening toB.listenedB.listened to to C.was listening to C.was listening toD.wasD.was listening listening()4.We heard a cry when we()4.We heard a cry when we TV last night.TV last night.A.were watching A.were watchingB.would watch
12、 C.watchB.would watch C.watchD.watchedD.watched()5.The traffic light is red.You()5.The traffic light is red.You cross the street until it cross the street until it turns green.turns green.A.cant A.cantB.neednt C.mustntB.neednt C.mustntD.mayD.may not notD DC CC CA AC C二、句型转换二、句型转换6.Grandpa was mendin
13、g his clock when I reached home.(6.Grandpa was mending his clock when I reached home.(改为一般疑问句改为一般疑问句)grandpa grandpa his clock when you reached home?his clock when you reached home?7.We were singing and dancing 7.We were singing and dancing from 3 to 5 yesterday afternoon.from 3 to 5 yesterday after
14、noon.(对画线部对画线部 分提问分提问)you singing and dancing?you singing and dancing?8.Must I finish my work by tomorrow?(8.Must I finish my work by tomorrow?(作否定回答作否定回答),.9.The students were talking about the news when the teacher came in.(9.The students were talking about the news when the teacher came in.(改改 为否
15、定句为否定句)The students The students about the news when the about the news when the teacher came in.teacher came in.10.The woman must be Mrs.Brown,10.The woman must be Mrs.Brown,?(?(完成反意疑问句完成反意疑问句)WasWasmendingmendingWhenWhenwerewereNoNoyou needntyou needntwerewerenotnottalkingtalkingisntisntsheshe句型转换
16、句型转换1.The old man is so old that he cant look after himself.(1.The old man is so old that he cant look after himself.(改为同改为同 义句义句)The old man is The old man is old old look after himself.look after himself.2.My father lay in the bed just now.(2.My father lay in the bed just now.(用用at this time yeste
17、rdayat this time yesterday改写改写 句子句子)My father My father in the bed at this time yesterday.in the bed at this time yesterday.3.I like going shopping better than staying at home.(3.I like going shopping better than staying at home.(改为同义句改为同义句)I I shopping shopping at home.at home.【教师备用【教师备用】tootoototo
18、waswaslyinglyingpreferprefergoinggoingtotostayingstaying易错提醒易错提醒:1.so.that.1.so.that.意为意为“如此如此以至于以至于”,”,当当thatthat后从句是否定句后从句是否定句时时,可以与可以与too.totoo.to互换。互换。2.at this time yesterday 2.at this time yesterday 与过去进行时态连用。过去进行时态的结与过去进行时态连用。过去进行时态的结构为构为:主语主语+was/were+v.-ing+was/were+v.-ing+其他。其他。3.prefer doing to doing 3.prefer doing to doing 意为意为“比起比起更喜欢更喜欢”,”,可以和可以和like.betterlike.better进行互换。进行互换。
九年级英语上册 Unit 4 Stories and poems单元语法归纳 （新版）冀教版课件
