英语从句分类专升本幻灯片.ppt

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1、英语从句分类专升本第1页，共16页，编辑于2022年，星期二第2页，共16页，编辑于2022年，星期二 【名词性从句名词性从句】1.主语从句：What you need is more practice.It is still unknown when we shall go to the concert.(it作形式主语)2.宾语从句：We must find out who did all this.I think it best that you should stay here.(it作形式宾语)He will do whatever the teacher asks him to d

2、o.(名词性关系代词引导)第3页，共16页，编辑于2022年，星期二 3.同位语从句：He made the suggestion that we go by air.My suggestion that we do the experiment again is accepted by them.The visitor expressed his hope that we would come to China again.4.表语从句：The question is whether it is worth doing.The reason why he is often late for

3、class is that he has the bad habit of getting up late in the morning.第4页，共16页，编辑于2022年，星期二返回返回 【状语从句状语从句】一、时间状语从句一、时间状语从句 1.常用的引导词：when,as,while,whenever,before,after,since,till,until,as soon as,hardlywhen,by the time,every time 2.时间状语从句要用一般现在是(过去时)代替一般将来时(过去将来时)。I will tell you when he comes back.W

4、hen he will come back is unknown to us all.第5页，共16页，编辑于2022年，星期二 二、条件状语从句二、条件状语从句 常用if;unless(=ifnot);once;on condition that;so/as long as 等连词来引导。注意：条件状语从句中的谓语动词也同样要用一般现在时（过去时）代替一般将来时（过去将来时）。We cant write to Mr.White unless he sends us his address.If he comes here tomorrow,Ill let you know.比较：I dont

5、 know whether he will come here tomorrow or not.三、让步状语从句三、让步状语从句1.常用的连词：although;though;as if/though;if even/though;whether;no matter how/what/who/when/where(however;whoever;whenever;wherever)Whether it rains or not I will start tomorrow.I dont know whether it will rain or not.2.although,though,as常可

6、互换，可与yet连用，但不可以和but连用。Although不能用倒装语序，though可以用倒装语序，as一定要用倒装语序。第6页，共16页，编辑于2022年，星期二 Young as he is/Though he is young,he knows a lot.Though/Although he was old,but he worked hard.(错)Though/Although he was old,yet he worked hard.(对)四、地点状语从句四、地点状语从句常用where,wherever等词引导，注意不要和where引导的定语从句（where前须有地点的名词

7、作为先行词）想混淆。Please put the book where it can be easily found.Please put the book in the place where it can be found easily.五、原因状语从句五、原因状语从句常用because,since,as,now that等词引导。Because表示未知的原因，其前可带否定词或其他修饰词，可用于强调结构；since和as表示已知的原因，所引导的从句常谓语主句前面，且since和as都不与so连用。The doctor looks tired and sleepy simply becaus

8、e he sat up all night with the patient.Since/As everyone is here,lets begin our class.第7页，共16页，编辑于2022年，星期二 六、结果状语从句六、结果状语从句 常由so that,so/such that引导，位于主句后，具体句型如下：（1）such+a/an+adj.+单数可数名词+that 从句=so+adj.+a/an+单数可数名词+that 从句 He made such an excellent speech that we all admired him.He made so excellen

9、t a speech that we all admired him.（2）such+adj.+可数名词复数/不可数名词+that 从句 They are such funny stories that I want to read them again.I made such rapid progress that my parents praised me.（3）so+adj./adv.+that 从句 He spoke so fast that we couldnt follow him.She is so pretty that I couldnt help falling in lo

10、ve with her.（4）so+many/few+复数名词或 much/little 不可数名词+that 从句 He has so little money that he cant but the book.(对)He has such little money that he cant but the book.(错)I have so many memories that I couldnt forget.第8页，共16页，编辑于2022年，星期二 七、目的状语从句七、目的状语从句 常由 so that(不能放在句首)与 in order to(句首句中都可以)引导。从句中常有 m

11、ay,might,can,could 等词。We go to school so that/in order that we may learn.He got up early so that he might be in time for the first bus.(目的)He got up early so that he was in time for the first bus.(结果)In order to catch the first bus,he got up early this morning.八、方式状语从句八、方式状语从句 常由 just as;as if/thoug

12、h引导。注意：as if/though 引导的从句谓语多用虚拟语气，但当从句中所陈述的情况如果或可能是事实或可能实现时，也可用陈述语气。The professor told the students to do as he did.He talks as if he knew all about it.第9页，共16页，编辑于2022年，星期二 九、比较状语从句九、比较状语从句 1.用than,more/less than引导。Michael is taller than me./Marry is less clever than her brother.2.“as+adj./adv.原级+a

13、s”和“not+as/so+adj./adv.原级+as”引导。This book is as good as that one./She can not run as/so fast as I.3.如果要表达“几倍于”应用“倍数+as+adj./adv.+as”句型 This road is four times/twice as long as that one.4.用“the+比较级，the+比较级”(越就越)引导。The busier Michael is,the happier he feels.The harder you study,the greater progress yo

14、u will make.第10页，共16页，编辑于2022年，星期二 【宾语从句宾语从句】概念：概念：在句子中起宾语作用的从句叫做宾语从句或在主句中担当宾语的从句。学习宾语从句要抓住三要素：连接词、语序连接词、语序 和和 时态时态。连接词：连接词：that(指人或者物)，which(指物)，who(指人)注意：1.从句为陈述句，常选择连接词that或将其省略，直接与主句相连。2.从句为一般疑问句，常选择连词 if 或 whether。在“whetheror not”结构结构中不能用中不能用 if 替换替换。3.从句为特殊疑问句，常选择 what,when,where,which,who,how

15、等的疑问代词，副词作连接词。当 who 为主语时，句式为：who+谓语谓语+其他其他 时态：时态：1.主句用一般现在时，从句可用任何时态。主句用一般现在时，从句可用任何时态。2.主句用一般过去时，从句用过去将来，完成时。主句用一般过去时，从句用过去将来，完成时。3.主句用一般过去时，若从句是真理时，只用一般现在时。主句用一般过去时，若从句是真理时，只用一般现在时。第11页，共16页，编辑于2022年，星期二 1.1.宾语从句的连接词宾语从句的连接词 从属连词：从属连词：that;if;whether 注意：注意：that 引导表示“陈述句”的宾语从句，而if和whether引导表示“是否”的宾

16、语从句。2.动词的宾语从句动词的宾语从句 大多数动词都可以带宾语从句。I have found out that all the tickets for the concert have been sold out.Can you work out how much we will spend during the trip?常用动词短语：make sure;make up ones mind;keepin mind Make sure that there are no mistakes in your papers before you hand them in.用形式宾语it代替的宾语从

17、句 I think it necessary that we take plenty of hot water ever day.I hate it when they with their mouths full of food.We take it that you will agree with us.We discovered what we had learned was valuable.第12页，共16页，编辑于2022年，星期二 3.if,whether 在宾语从句中的区别在宾语从句中的区别 a.if和whether在作“是否”解时，引导宾语从句常放在动词know,ask,ca

18、re,wonder,find out等之后，介词后一般不用介词后一般不用if。b.少数动词，如：leave,put,discuss,doubt后的宾语从句常用whether。c.whether可以和可以和or not连用连用,但是但是if不可以。不可以。d.在不定式前只能用whether:I cant decide whether to go(or not).e.在表示避免歧义时，用whether,不用if.第13页，共16页，编辑于2022年，星期二 4.宾语从句的否定转移宾语从句的否定转移 I dont think he will come to my party.I think he w

19、ill not come to my party.(错)注意：如果宾语从句中有某个含有否定意义的形容词或副词，其反义疑问句要用肯定形式。We find that he never listens to the teacher carefully,does he?第14页，共16页，编辑于2022年，星期二Homeworkv1.专项练习阅读理解第一类型5，6两篇文章及第二类型的5，6两篇文章，共4篇。v2.词汇与语法综合练习题第五、六两个单元v3.复习重点单词第15页，共16页，编辑于2022年，星期二End of the Class To be Continued 第16页，共16页，编辑于2022年，星期二