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小学语法下册U14 常用连词 课件
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这是一份小学语法下册U14 常用连词 课件，共41页。PPT课件主要包含了nor，But ，if ，and ， Although ， but ，as soon as，and，before等内容，欢迎下载使用。
Tmrrw we will have a picnic in the park, but (表转折)I can’t g, because (表原因) I am ill. I have t stay at hme and (连接两个相同的句子) have a rest. When (表示时间两个动作同时发生) I heard this news, I felt unhappy. While (然而) my teacher and my classmates help me a lt. I think if (引出条件) I was nt ill, I wuld have a gd time. Althugh (表让步) I dn’t g, I am still happy.
听了上面的故事，请你找出句与句，词与词之间的连接词，并说一说它们在句中的作用。
连词——在词和词，短语和短语，句子和句子，从句和从句之间起连接作用的词叫做连词。连词是虚词，在句子中一般不重读，在句子中不能单独做句子成分。连词在句子中所起作用的角度来看，连词分为两大类：并列连词和从属连词。
并列连词用来连接具有平行关系的词、短语或句子。常用的并列连词有：and, but, r, s, bth…and, either…r, neither…nr, nt nly…but als等。
and是把两个或两个以上的有并列关系、动作先后关系或者是有条件和结果关系的句子连接起来。 如：After lunch Aunt Huang came in and she lked wrried. 午饭后黄阿姨进来了，她看起来很着急。(表示并列关系) Mary brushed her teeth and she went t bed. 玛丽刷完牙，然后上床睡觉。(表示动作先后关系)
Use yur head, and yu'll find a gd way. 动动脑筋，你就会找到好的方法。(表示条件和结果)该句相当于：If yu use yur head, yu'll find a gd way.
“祈使句，+and + 一般将来时的句子”这是一个固定句型，表示如果做到了祈使句表示的事情，就会有后面句子表示的结果。如： Wrk hard, and yu will pass the exam. 努力学习，你就会通过考试。
(错) They sat dwn and talk abut smething. (错) They started t dance and sang. (错) I saw tw men sitting behind and whisper there. (对) They sat dwn and talked abut smething. (对) They started t dance and sing. (对) I saw tw men sitting behind and whispering there.
解析： 第一句： and 连接两个并列的谓语，所以 talk 应改为 talked。 第二句：and 连接两个并列的动词不定式，第二个不定 式往往省略t，因此sang 应改为 sing。 第三句：and 连接感观动词saw 后面的用作宾补的两个 并列分词结构，因此whisper应改为whispering。
r： 我是一位和蔼可亲的老师，一般情况下我不会强迫某人去做某一件事情，我可以让他(她)自己做出选择。有时，我也会比较严厉，这时候我会用命令的语气说“做好某事，否则(要不然)就会……” Yu may d it yurself, r yu can ask smene t help yu. 你可以自己做，你也可以请人来帮你。 Wrk hard, r yu can't pass the exam.= If yu dn't wrk hard, yu can't pass the exam. 努力学习，否则你考试会不及格。
“祈使句，+ r + 一般将来时的句子”是一个固定句型，表示如果不做到祈使句表示的事情，就会有后面句子表示的结果。
and 和r 的区别：并列结构中，r通常用于否定句， and用于肯定句。(对)There is n air r water in the mn. (错)There is n air and water in the mn.(对)There is n air and n water n the mn. (错)There is n air r n water n the mn.解析：在否定中并列结构用r 连接，但含有两个否定词的句子实际被看作是肯定结构，因此要用and。
but：我的功能是把两个意思相反或相对的句子连接起来。我的同事还有：yet (可是)，while (而)等。 I heard a big nise and I lked ut, but I didn't see anything. 我听到一声巨响，就往外看，但是我什么也没看见。 I'm pr, but I always enjy myself. 我很穷，但是我总是过得很开心。 My elder brther likes playing basketball while I like playing ftball. 我哥哥喜欢打篮球，而我喜欢踢足球。
s： “因此、所以”。 我能迅速地把含有因果关系的两个简单句连接起来。This is ur first lessn, s I dn't knw all yur names. 这是我们的第一节课，因此并不是所有人的名字我都知道。 I am rich, s I can buy lts f nice things fr myself. 我很富裕，所以我能给自己买很多好东西。
bth …and：两者都…… She plays (bth) the pian and the guitar. 她能演奏钢琴和吉他。
nt nly…but (als), 不但……而且……，谓语动词采用就近原则，与but (als)后的词保持一致。 as well as不但……而且…… She plays nt nly the pian, but (als) the guitar. 她不仅会演奏钢琴也会弹吉他。注意：nt nly… but als 关联两个分句时，一个分句因有否定词nt 在句首时必须倒装。 Nt nly des he like reading stries, but als he can even write sme. 他不但喜欢读故事，而且还能编写一些故事。It is imprtant fr yu as well as fr me. 这对你和对我都很重要。
neither…nr 意思为既不……也不……，谓语动词采用就近原则，与nr后的词保持一致。 Neither yu nr he is t blame. 你和他都不用自责。The weather is mild tday, it is neither ht nr cld. 今天天气很温暖，不冷也不热。
either... r... 或者……或者……，谓语动词采用就近原则，与r后的词保持一致。 Either he r I g t the meeting. 我和他都去参见会议。
呈现从属连词：从属连词用来连接主句和从句。常用的从属连词有：when, befre, after, as sn as, because, if, thugh, althugh等。
When 和whileWhen I left hme, my mther was cking. 我离开家的时候，我妈妈正在做饭。I was reading a bk, while my brther is watching TV.我哥哥看电视时我正在读书。We listened while the teacher read. 老师朗读时我们听着。when和while：两者都表示“当……时候”。注意以下两句：I was ding hmewrk when the phne rang. 当我做作业的时候，电话响了。While I was ding hmewrk, the phne rang. 当我做作业的时候，电话响了。
befre：在……以前，常与一般过去时、一般现在时连用。例：Try t finish yur wrk befre yu leave. 离开前设法把工作做完。I’ll stay here befre my mther cmes back. 在你妈妈回来前，我一直在这。
after：在……以后，通常用于过去时、现在时或完成时态的句子中。例：After we have finished tea, we will sit n the grass. 喝完茶之后我们将坐在草地上。I went t bed after I finished my hmewrk. 完成作业后我去睡觉。
as sn as 引出的时间状语从句应用一般现在时表示将来要发生的动作。例：I'll tell him as sn as I see him. 我一看见他我就告诉你。
if连接条件状语从句，表”如果”。例：D yu mind if I pen the windw? 开窗你不介意吧?
because表原因，用于解释某事的原因和动机，强调直接的原因和因果关系。有because不能有s、相反有s不能有because。 例：I d it because I like it. 因为我喜欢它所以我做它。I can’t buy the bk because I have run ut f my mney. 或I have run ut f my mney s I can’t buy the bk. 我不能买这本书，因为我钱花光了。
在althugh和thugh引导的让步状语从句中，是尽管或虽然的意思。主句里不可用but,若要强调前后两部分的对比意义，可在主句前加yet或still。例：Thugh/Althugh it was late, they went n wrking. 虽然很晚了，但是他们仍然在继续工作。 Althugh/Thugh he has a lt f mney, yet / still he is unhappy. 他虽然有很多钱，但并不幸福。
( ) We bught Granny a scarf, _____ she didn’t like it. A. but B. and C. r D. s( ) I’ll tell the news t him ______ he cmes back. A. since B. as sn as C. thugh D. until( ) Be careful, ______ yu will fall ff the wall. A. s B. r C. but D. and
( ) Lucy and Lily are twins. Lucy likes playing the pian, ______ Lily desn’t. A. and B . as C. but D. r ( ) Mr Brwn knws little English, _________ he can’t understand the instructins (用法说明) n the bttle f the pills. A. s B. r C. but D. fr ( ) My uncle desn’t have much mney, _________ he always enjys himself. A. but B. s C. and D. r
将两个句子用适当的连词连接，使句意完整， 并朗读句子
He went t the cinema. He saw an exciting film.She came t see me. I was ill.The TV prgram ends. The girl will g t bed.The lessns ends. The children will run ut f the classrm.
He went t the cinema, and he saw an exciting film.
She came t see me, because I was ill.
The TV prgram ends, s the girl will g t bed.
The lessns ends, s the children will run ut f the classrm.
She was ging ut t play ftball. It rained.I am right. He is right, t.I can’t skate. Yu can’t skate, either.
She was ging ut t play ftball althugh it rained.
Bth I and him are right.
Neither I nr yu can skate.
连词成句，并朗读句子
yu, by bat, r, can, g, by bus, there, either.nt nly, her father, mther, but als, likes cmedies.bth Tm, are watching TV, and Lucy, nw. yur, put n, cat, yu’ll, r, have a cld.he, he, was very tired, s, had a rest.
Nt nly her father but als her mther likes cmedies.
Bth Tm and Lucy are watching TV nw.
Put n yur cat, r yu’ll have a cld.
He was very tired, s he had a rest.
Yu can either g there by bat r by bus.
He can neither speak __________ (r; nr) read English.Hurry up, _______ (and; r ) yu will be late.He is very tired. ________ (If; But) he still wrks very hard.He asked me _______ (if; r) I was 13 years ld.The by is shrt _______ (and; r) fat.He desn’t like ftball __________ (and; r) basketball.Which is yurs, the red ne ___________ (but; r ) the black ne?
选择正确的词填空，并朗读句子
She is happy, but she is pr.
It was dark , s I culdn’t see anything.
She is pr, but she is happy.
He culdn’t walk there, because he was tired.
He can bth play sccer and play basketball.
I like music and art.Which d yu like better, swimming r skating?Lily can swim, but she can’t swim well.It’s raining utside, s I can’t g utside.Yu will pass the exam if yu study hard.
( ) _______ he is very ld, he can walk very fast. A. If B. But C. Thugh D. Whether( ) Actin mvie is my favrite, ______ I think it's exciting. A. and B. because C. but D. s
Tmrrw we will have a picnic in the park, but (表转折)I can’t g, because (表原因) I am ill. I have t stay at hme and (连接两个相同的句子) have a rest. When (表示时间两个动作同时发生) I heard this news, I felt unhappy. While (然而) my teacher and my classmates help me a lt. I think if (引出条件) I was nt ill, I wuld have a gd time. Althugh (表让步) I dn’t g, I am still happy.
听了上面的故事，请你找出句与句，词与词之间的连接词，并说一说它们在句中的作用。
连词——在词和词，短语和短语，句子和句子，从句和从句之间起连接作用的词叫做连词。连词是虚词，在句子中一般不重读，在句子中不能单独做句子成分。连词在句子中所起作用的角度来看，连词分为两大类：并列连词和从属连词。
并列连词用来连接具有平行关系的词、短语或句子。常用的并列连词有：and, but, r, s, bth…and, either…r, neither…nr, nt nly…but als等。
and是把两个或两个以上的有并列关系、动作先后关系或者是有条件和结果关系的句子连接起来。 如：After lunch Aunt Huang came in and she lked wrried. 午饭后黄阿姨进来了，她看起来很着急。(表示并列关系) Mary brushed her teeth and she went t bed. 玛丽刷完牙，然后上床睡觉。(表示动作先后关系)
Use yur head, and yu'll find a gd way. 动动脑筋，你就会找到好的方法。(表示条件和结果)该句相当于：If yu use yur head, yu'll find a gd way.
“祈使句，+and + 一般将来时的句子”这是一个固定句型，表示如果做到了祈使句表示的事情，就会有后面句子表示的结果。如： Wrk hard, and yu will pass the exam. 努力学习，你就会通过考试。
(错) They sat dwn and talk abut smething. (错) They started t dance and sang. (错) I saw tw men sitting behind and whisper there. (对) They sat dwn and talked abut smething. (对) They started t dance and sing. (对) I saw tw men sitting behind and whispering there.
解析： 第一句： and 连接两个并列的谓语，所以 talk 应改为 talked。 第二句：and 连接两个并列的动词不定式，第二个不定 式往往省略t，因此sang 应改为 sing。 第三句：and 连接感观动词saw 后面的用作宾补的两个 并列分词结构，因此whisper应改为whispering。
r： 我是一位和蔼可亲的老师，一般情况下我不会强迫某人去做某一件事情，我可以让他(她)自己做出选择。有时，我也会比较严厉，这时候我会用命令的语气说“做好某事，否则(要不然)就会……” Yu may d it yurself, r yu can ask smene t help yu. 你可以自己做，你也可以请人来帮你。 Wrk hard, r yu can't pass the exam.= If yu dn't wrk hard, yu can't pass the exam. 努力学习，否则你考试会不及格。
“祈使句，+ r + 一般将来时的句子”是一个固定句型，表示如果不做到祈使句表示的事情，就会有后面句子表示的结果。
and 和r 的区别：并列结构中，r通常用于否定句， and用于肯定句。(对)There is n air r water in the mn. (错)There is n air and water in the mn.(对)There is n air and n water n the mn. (错)There is n air r n water n the mn.解析：在否定中并列结构用r 连接，但含有两个否定词的句子实际被看作是肯定结构，因此要用and。
but：我的功能是把两个意思相反或相对的句子连接起来。我的同事还有：yet (可是)，while (而)等。 I heard a big nise and I lked ut, but I didn't see anything. 我听到一声巨响，就往外看，但是我什么也没看见。 I'm pr, but I always enjy myself. 我很穷，但是我总是过得很开心。 My elder brther likes playing basketball while I like playing ftball. 我哥哥喜欢打篮球，而我喜欢踢足球。
s： “因此、所以”。 我能迅速地把含有因果关系的两个简单句连接起来。This is ur first lessn, s I dn't knw all yur names. 这是我们的第一节课，因此并不是所有人的名字我都知道。 I am rich, s I can buy lts f nice things fr myself. 我很富裕，所以我能给自己买很多好东西。
bth …and：两者都…… She plays (bth) the pian and the guitar. 她能演奏钢琴和吉他。
nt nly…but (als), 不但……而且……，谓语动词采用就近原则，与but (als)后的词保持一致。 as well as不但……而且…… She plays nt nly the pian, but (als) the guitar. 她不仅会演奏钢琴也会弹吉他。注意：nt nly… but als 关联两个分句时，一个分句因有否定词nt 在句首时必须倒装。 Nt nly des he like reading stries, but als he can even write sme. 他不但喜欢读故事，而且还能编写一些故事。It is imprtant fr yu as well as fr me. 这对你和对我都很重要。
neither…nr 意思为既不……也不……，谓语动词采用就近原则，与nr后的词保持一致。 Neither yu nr he is t blame. 你和他都不用自责。The weather is mild tday, it is neither ht nr cld. 今天天气很温暖，不冷也不热。
either... r... 或者……或者……，谓语动词采用就近原则，与r后的词保持一致。 Either he r I g t the meeting. 我和他都去参见会议。
呈现从属连词：从属连词用来连接主句和从句。常用的从属连词有：when, befre, after, as sn as, because, if, thugh, althugh等。
When 和whileWhen I left hme, my mther was cking. 我离开家的时候，我妈妈正在做饭。I was reading a bk, while my brther is watching TV.我哥哥看电视时我正在读书。We listened while the teacher read. 老师朗读时我们听着。when和while：两者都表示“当……时候”。注意以下两句：I was ding hmewrk when the phne rang. 当我做作业的时候，电话响了。While I was ding hmewrk, the phne rang. 当我做作业的时候，电话响了。
befre：在……以前，常与一般过去时、一般现在时连用。例：Try t finish yur wrk befre yu leave. 离开前设法把工作做完。I’ll stay here befre my mther cmes back. 在你妈妈回来前，我一直在这。
after：在……以后，通常用于过去时、现在时或完成时态的句子中。例：After we have finished tea, we will sit n the grass. 喝完茶之后我们将坐在草地上。I went t bed after I finished my hmewrk. 完成作业后我去睡觉。
as sn as 引出的时间状语从句应用一般现在时表示将来要发生的动作。例：I'll tell him as sn as I see him. 我一看见他我就告诉你。
if连接条件状语从句，表”如果”。例：D yu mind if I pen the windw? 开窗你不介意吧?
because表原因，用于解释某事的原因和动机，强调直接的原因和因果关系。有because不能有s、相反有s不能有because。 例：I d it because I like it. 因为我喜欢它所以我做它。I can’t buy the bk because I have run ut f my mney. 或I have run ut f my mney s I can’t buy the bk. 我不能买这本书，因为我钱花光了。
在althugh和thugh引导的让步状语从句中，是尽管或虽然的意思。主句里不可用but,若要强调前后两部分的对比意义，可在主句前加yet或still。例：Thugh/Althugh it was late, they went n wrking. 虽然很晚了，但是他们仍然在继续工作。 Althugh/Thugh he has a lt f mney, yet / still he is unhappy. 他虽然有很多钱，但并不幸福。
( ) We bught Granny a scarf, _____ she didn’t like it. A. but B. and C. r D. s( ) I’ll tell the news t him ______ he cmes back. A. since B. as sn as C. thugh D. until( ) Be careful, ______ yu will fall ff the wall. A. s B. r C. but D. and
( ) Lucy and Lily are twins. Lucy likes playing the pian, ______ Lily desn’t. A. and B . as C. but D. r ( ) Mr Brwn knws little English, _________ he can’t understand the instructins (用法说明) n the bttle f the pills. A. s B. r C. but D. fr ( ) My uncle desn’t have much mney, _________ he always enjys himself. A. but B. s C. and D. r
将两个句子用适当的连词连接，使句意完整， 并朗读句子
He went t the cinema. He saw an exciting film.She came t see me. I was ill.The TV prgram ends. The girl will g t bed.The lessns ends. The children will run ut f the classrm.
He went t the cinema, and he saw an exciting film.
She came t see me, because I was ill.
The TV prgram ends, s the girl will g t bed.
The lessns ends, s the children will run ut f the classrm.
She was ging ut t play ftball. It rained.I am right. He is right, t.I can’t skate. Yu can’t skate, either.
She was ging ut t play ftball althugh it rained.
Bth I and him are right.
Neither I nr yu can skate.
连词成句，并朗读句子
yu, by bat, r, can, g, by bus, there, either.nt nly, her father, mther, but als, likes cmedies.bth Tm, are watching TV, and Lucy, nw. yur, put n, cat, yu’ll, r, have a cld.he, he, was very tired, s, had a rest.
Nt nly her father but als her mther likes cmedies.
Bth Tm and Lucy are watching TV nw.
Put n yur cat, r yu’ll have a cld.
He was very tired, s he had a rest.
Yu can either g there by bat r by bus.
He can neither speak __________ (r; nr) read English.Hurry up, _______ (and; r ) yu will be late.He is very tired. ________ (If; But) he still wrks very hard.He asked me _______ (if; r) I was 13 years ld.The by is shrt _______ (and; r) fat.He desn’t like ftball __________ (and; r) basketball.Which is yurs, the red ne ___________ (but; r ) the black ne?
选择正确的词填空，并朗读句子
She is happy, but she is pr.
It was dark , s I culdn’t see anything.
She is pr, but she is happy.
He culdn’t walk there, because he was tired.
He can bth play sccer and play basketball.
I like music and art.Which d yu like better, swimming r skating?Lily can swim, but she can’t swim well.It’s raining utside, s I can’t g utside.Yu will pass the exam if yu study hard.
( ) _______ he is very ld, he can walk very fast. A. If B. But C. Thugh D. Whether( ) Actin mvie is my favrite, ______ I think it's exciting. A. and B. because C. but D. s
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