as不同词性用法小结PowerPoint 演示文稿

1、.1 as 用法小结用法小结 介词介词3连词连词1关系关系代词代词2副词副词446.练习练习固定词组固定词组55.2 Look at the following sentences with “as” and telling its part of the speech. 1 As time goes by, we gradually realize that its not easy for our parents to bring us up.2 I read the letter as I walked along the river.3 They regard him as their

2、 leader.4 He came to China as a tourist five years ago.1+2:as做连词做连词3+4:as做介词做介词.3 Look at the following sentences with “as” and telling its part of the speech. 5 As you know, Ive decided to leave at the end of the month.6 Paul runs fast, but I run just as fast. (I run just as fast as he does.)7 She

3、will go there as well as Lucy.8 Its said that as long as a man has a sense of humor, he will conquer the female .5:as作关系代词作关系代词6:as1作副词，作副词，as2作连词作连词7+8: as引导的习惯性短语引导的习惯性短语.4（1）as做连词做连词As引导状从，可表时间、原因、让步、方式等。引导状从，可表时间、原因、让步、方式等。1 Strong as he is, he is afraid of injection.2. Doctor as she is, she can

4、t cure her own disease.3.As the wealth of the country increases, more waste will be produced.4.As I was going out the telephone rang.5. As the weather was fine, we decided to walked to the restaurant. 6. When in Rome, do as Romans do.1+2: as引导让步状语从句引导让步状语从句3+4: as引导时间状语从句引导时间状语从句as引导原因状语从句引导原因状语从句as

5、引导方式状语从句引导方式状语从句.5Diligent he was, he failed in the English final exam.A. Though B. although C. as D. likeAlthough he was diligent, he failed in the English final exam.C.6 , he does get irritated with her sometimes. As he likes her much Much though he likes her Though much he likes herA.Much as he l

6、ikes herD.7 （2）as做关系代词做关系代词 关系代词关系代词as引导限定性定语从句时，一般用于引导限定性定语从句时，一般用于 固定结构当中；引导非限定性定语从句时，一般翻固定结构当中；引导非限定性定语从句时，一般翻译成译成“恰如，正如恰如，正如”，修饰一整个句子或短语。，修饰一整个句子或短语。 1. 用于用于the same.as结构中结构中 This is the same book as I read last week. 用于用于such.as结构中结构中 I dont like such books as he recommends. 用于用于so +adj. + a/an

7、 + n. (单数单数) + as 结构中结构中 I am not so strong a man as I was.我已经没有从前那么我已经没有从前那么强壮了。强壮了。.8 as单独引导定语从句时，先行词是一个句子或单独引导定语从句时，先行词是一个句子或短语。可以放句首，也可以放句末。放句首居短语。可以放句首，也可以放句末。放句首居多。例如：多。例如： (1) As is often the case, she is late. 恰如平常一样，她又迟到了。恰如平常一样，她又迟到了。 (先行词是整个主句先行词是整个主句) (2) He is very careful, as his work

8、shows. 他非常小心，恰如他的工作所展现出来的一样。他非常小心，恰如他的工作所展现出来的一样。 (先行词是整个主句先行词是整个主句) 类似的常用表达还有：类似的常用表达还有： As we all know, As is known to all, As is mentioneddiscussed above, As we have mentioneddiscussed above, .9 is generally accepted, economical growth is determined by the smooth development of production.A. What

9、 B. that C. it D. As D.10 is known to the world, Mark Twain is a great American writer.A. That B. which C. as D. it C.11（3）as作介词的用法作介词的用法 as作介词，意思是作介词，意思是作为作为，以以身份身份。 例如：例如： He came to China as a tourist five years ago. 常用于以下短语结构常用于以下短语结构: look at see consider recognize view think of treat acknowled

10、ge regard look upon describe define use serve workas. be famouswell-known as .12as和和 like 都可以做介词都可以做介词,但词义是不同的但词义是不同的,as 作为作为, 以以资格资格,like 像像.与与相似相似1 As a scientist, he dedicated to the truth.2 He wants me to go with him as his secretary.3 She works like a beaver. 她工作勤勤恳恳她工作勤勤恳恳.131 every other memb

11、er of the team, he wore an official uniform in the victory parade.A. Like B. as C. the same as D. as an2 He works engineer.A. Like B. as C. the same as D. as anAD.14（4）as作副词的用法作副词的用法as做副词，表示同等程度，数量，质量等作做副词，表示同等程度，数量，质量等作“一样地一样地”解释，常用在解释，常用在asas结构当中结构当中. as many as as much as as good as as quickly as

12、 .15（5）几个关于）几个关于as.as的常见句型：的常见句型： (1)as.as possible as as one cancould 尽可能地尽可能地 .Please answer my question as soon as possible (2)as.as usual/before 像以前一样像以前一样 .She looks as pretty as before. (3)as long as. (也可引导条件状语从句也可引导条件状语从句) 只要，和只要，和一一样长样长 .It took us as long as three years to carry out the pla

13、n. (4)as far as 远至远至，就，就而言而言as far as I know; as far as I can tell; as far as Im concerned; .He walked as far as 5 kilometers yesterday evening. (5)as well as 和和一样好；也，又，还一样好；也，又，还 .She cooks as well as her mother does. .16带有带有as.as结构的常见短语结构的常见短语： as busy as a bee as easy as ABC as deep as a well as

14、light as a feather as soft as butter as rich as a Jew .17（6） ExerciseHomework: 在书本上在书本上P30-31找到含有找到含有 as的句子并且分的句子并且分析它的用法：析它的用法：P2：(L3)as the rocket rose . as是是_词，意为词，意为_.(L9-L10) as strong a pull as the earths“asas”意为意为_,第一个第一个as是是_词，第二个是词，第二个是as_词。词。随着随着P3：（：（L7）twice as far as“asas”意为意为_,第一个第一个as

15、是是_词，词，第二个是第二个是as_词。词。连（时间状从）连（时间状从）与与一样一样(强的引力）强的引力）副副连连是是一样（两倍多）一样（两倍多）副副连连.18P4. (L1) as painful as leaving the earths 。 “asas”意为意为_,第一个第一个as是是_词，词，第二个是第二个是as_词。词。P4.(L2) amazed as fire broke out on the outside of the spaceship as the earths gravity increase.第一个第一个as是是_词词,意为意为_;第二个第二个as是是_词词,意为意为

16、_.P4.(L4) Again we were pushed hard into our seats as we came back to land. as是是_词，意为词，意为_.与与一样（痛苦）一样（痛苦）副副连连连连(原因状从）原因状从）因为因为连（时间状从）连（时间状从）随着随着连连(时间状从）时间状从）随着随着.191 Please answer my question _.请尽快回答我的问题。请尽快回答我的问题。 2 请尽量走慢点。我好累。请尽量走慢点。我好累。Please walk _ because I am tired.3 Please answer my questions

17、 _.请尽可能勇敢滴回答我的问题。请尽可能勇敢滴回答我的问题。4 She looks _。 她看起来和以前一样漂亮她看起来和以前一样漂亮5 The village is _.这个村庄一如既往地安静。这个村庄一如既往地安静。6 10年之后我再见他，他还是像以前一样乐观。年之后我再见他，他还是像以前一样乐观。When I met him 10 years later, he is_.as soon as possibleas slowly as possibleas bravely as you canas pretty as beforeas quiet as beforeusualas optimistic as before.207 It took us _ to carry out the plan.我们花了长达三年的时间才完成这项计划。我们花了长达三年的时间才完成这项计划。8 据说一个男人要是有了幽默感，就可以征服女人了。据说一个