内容正文:
7下北师大版
【寒假专版】
重难点精讲
寒假专版
【语法专题】现在进行时专项突破
初中北师大版七年级下册
语法精讲
语法概述:现在进行时(标志词:now/at the moment)-主语+be动词(am/is/are)+动词的现在
分词(ig形式),表示现在或此刻正在进行的动作。
重难点讲解
重难点一:现在进行时的构成及用法讲解:
现在进行时表示此时此刻正在进行的动作,其构成是“主语+be动词(am/is/are)+动词的现在
分词(v-ing)”。be动词的形式需根据主语的人称和数来确定:第一人称单数用am,第三人称单
数用is,第二人称及复数用are。现在分词的构成规则包括:一般情况下直接加-ing:以不发音的e
结尾的动词去e加-ing:以重读闭音节结尾且末尾只有一个辅音字母的动词双写尾字母加-ing。常
与标志词now、at the moment等连用。
例句:
。I am reading a book now.(我现在正在读书。)
。He is playing basketball at the moment.(他此刻正在打篮球。)
真题再现:
1.(2024
北京海淀期中,北师大版)Listen!Someone in the next room.
A.sing
B.sings
C.is singing
D.sang
答案:C解析:标志词“Listen”提示动作正在进行,用现在进行时,主语someone为第三
人称单数,be动词用is,sing的现在分词是singing,所以选C。
2.(2023广东深圳月考,北师大版)Look!The children_games on the playground,
A.play
B.are playing
C.played
D.will play
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答案:B解析:“Look!”是现在进行时的标志词,主语the children是复数,be动词用are,
play的现在分词是playing,故选B。
重难点二:现在进行时的否定句和疑问句讲解:
现在进行时的否定句是在be动词后加not,即“主语+be+not+v-ing”。
疑问句是将be动词提到主语之前,即“Be+主语+v-ing+其他?”,肯定回答用“Yes,主语+be.”,
否定回答用“No,主语+be+not.”。
例句:
·She isn't watching TV now.(她现在没在看电视。)
·Are you doing your homework?(你正在做作业吗?)
Yes,I am./No,I'm not.
真题再现:
1.(2024江苏苏州期末,北师大版)一_your father一a newspaper now?
-No,he isn't.He is cleaning the room.
A.Does;read
B.Is;reading
C.Do;read
D.Are;reading
答案:B解析:根据标志词“now”及答句“No,he isn't.”可知,问句是现在进行时的一般
疑问句,主语your father是第三人称单数,be动词用is,read的现在分词是reading,所以选
B。
2.(2023
四川成都期中,北师大版)They_(not play)football now.They are running.(用所给
词的适当形式填空)
答案:aren't playing
解析:now提示用现在进行时,否定句在be动词后加not,主语they
是复数,be动词用are,所以填aren't playing。
重难点三:现在分词的构成规则讲解:
现在分词的构成有以下几种情况:1.一般动词直接在词尾加-ing,如work-working,play-playing:
2.以不发音的e结尾的动词,去掉e再加-ing,如come-coming,write-writing:3.以重读闭音
节结尾,且末尾只有一个辅音字母的动词,双写这个辅音字母再加-ing,如un-running,swim-
swimming;4.以ie结尾的动词,变ie为y再加-ing,如lie-lying,die-dying。
例句:
·He is coming here tomorrow.(他明天要来这儿。)
。She is swimming in the pool now.(她现在正在池子里游泳。)
真题再现:
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1.(2024浙江杭州月考,北师大版)The girl is_(hop)with her mother in the supermarket..(用
所给词的适当形式填空)
答案:shopping解析:shop是以重读闭音节结尾且末尾只有一个辅音字母的动词,其现在
分词需双写p再加-ing,所以填shopping。
2.(2023湖北武汉期末,北师大版)Look!The cat is (lie)on the sofa.(用所给词的适当形式
填空)
答案:ying
解析:lie是以ie结尾的动词,变ie为y再加-ing,所以填lying。
易错点综合演练
I单项选择(直击重难点》
1.Listen!The birds in the tree outside the window.
A.sing
B.sings
C.are singing
D.sang
2.-your brotherTV now?
-No,he is doing his homework.
A.Does;watch
B.Is;watching
C.Do;watch
D.Are;watching
3.Look!The students basketball on the playground happily
A.play
B.plays
C.are playing
D.played
4.My mother in the kitchen.The food smells delicious.
A.cook
B.cooks
C.cooked
D.is cooking
Ⅱ.用所给词的适当形式填空(强化句型结构)
1.He (not read)a storybook now.He is listening to music.
2.the girls (dance)in the classroom?Yes,they are.
3
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3.Look!The baby(cry)loudly.What's wrong with him?
4.My father(work)in the garden at the moment.
Ⅲ.短文填空(综合运用现在进行时)
It is Sunday momning.Many people 1.(enjoy)their weekends in the park.Look!Some children 2.
_(play)games under the big tree.A group of old people 3.(do)morning exercises near the lake.
A young man 4.(take)photos of the beautiful flowers.Two girls 5.(talk)happily on a bench.
Everyone 6.(have)a good time.
V.连词成句(聚焦句型结构)
1.is,my,sister,now,a,book,reading,(.
2.they,are,what,doing,in,the,classroom,(?
3.not,Tom,is,basketball,playing,now,(
4.am,I,to,the,talking,on,phone,my,friend,(
5.the,dog,is,after,a,cat,running,(
V.按要求改写句子(巩固否定、疑问句式)
l.She is cleaning her room now.(改为否定句)
2.They are playing football on the playground.(改为一般疑问句并作肯定回答)
3.My brother is watching TV in the living room.(对划线部分提间)
4.The girls are dancing happily.(改为一般疑问句并作否定回答)
参考答案
I.单项选择:1.C2.B3.C4.D
Ⅱ.用所给词的适当形式填空:1.isn't reading2.Are;dancing
3.is crying 4.is working
4
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Ⅲ.短文填空:
1.are enjoying
2.are playing 3.are doing 4.is taking 5.are talking 6.is having
IV.连词成句:
1.My sister is reading a book now.
2.What are they doing in the classroom?
3.Tom is not playing basketball now.
4.I am talking to my friend on the phone.
5.The dog is running after a cat.
V.按要求改写句子:
1.She isn't cleaning her room now.
2.Are they playing football on the playground?Yes,they are
3.What is my brother doing in the living room?
4.Are the girls dancing happily?No,they aren't.
5