as的用法归纳(全)[基础教学]

1、Period3:Sentence Patterns,1,苍松优选,9日单选正答率,3. She was afraid to go into the yard because she was afraid of being bitten by the big dog lying at the gate. be afraid to do 因害怕而不敢做某事 be afraid of doing sth. 担心(害怕)某事发生 He is afraid of being beaten by his father. He is afraid to touch the snake. 6.We are d

2、ying to hear about your experience in the army. be dying for sth.(n. pron.) be dying to do sth.,be eager to do be eager for long to do long for,2,苍松优选,9日单选正答率,7says that providing children with access to the information superhighway is of great importance. have access to 获得的机会（权利） 进入的通道 Only high of

3、ficials have access to the President. There is no access to the house. 11.The two countries used to be at war with each other, but now they are at peace. at war做表语 at peace 做表语 In peace=peacefully 做状语 Let us forgive each other only then will we live in peace 单选14. 完型 24.,3,苍松优选,Look through the guid

4、eline； Make full comprehension of the key points； ,10:43 to 11:00,4,苍松优选,11:00 to 11:05,Task1: Summarize the usage of “as” Task2: Discuss the exercises that confuse u,5,苍松优选,as用法归纳,6,苍松优选,as,conj.,adv.,relative pron.,prep.,固定用法,引导定语从句,引导时间状语从句,引导原因状语从句,引导让步状语从句,引导方式状语从句,引导比较状语从句,7,苍松优选,一、作副词,Jack is

5、 as tall as his father. Paul runs fast, but I run just as fast (as he does.) Tom has a lot of money but l dont have as much.,肯定句： “像（和）一样” 常用于asas结构. 否定句：“不像（和）一样” 常用于 not as(so)as,8,苍松优选, I read the letter as I walked along the river. As I get older I get more optimistic. John was having his dinner

6、 when I saw him. She can write only when the baby is asleep. We must strike while the iron is hot. While we were reading, the teacher came in.,1. 引导时间状语从句,二、用作连词,9,苍松优选,as引导时间状语从句,as,当的时候 延续性动词,同时进行,10,苍松优选,As she has been ill perhaps she need some help. I stayed at home because it rained. Since eve

7、ryone is here, lets start. It must have rained last night, for the ground is wet.,2. 引导原因状语从句,语气由强至弱：becausesinceasfor,11,苍松优选,as引导原因状语从句,as 是个常用词，所表示的原因是双方已知的事实 或是显而易见的，含义与since相同，但语气更 弱，常译成“由于，鉴于” because 语气最强；常用于回答why的提问； 它所 指的原因通常是听话人所不知道的 since 表示对方已知的、或稍加分析便可得知的原 因，有时译作“既然” for 表附加的解释、说明或推理。不放

8、句首 注意：在强调句型中只能用because It was because I missed the early bus that I was late for school.,12,苍松优选,.,1. Strong as he is, he is afraid of pain. 2. Slowly as the tortoise walks, it can beat the rabbit. 3. Doctor as she is, she cant cure her own disease. 4. Try（hard） as he does（will）, he never seems able

9、 to do the work beautifully.,adj./adv+as+ S+be/v.,n. + as +S+ be (句首名词不带冠词),v. +as +S+ do/does/did,3.as引导让步状语从句（倒装）,13,苍松优选,as引导让步状语从句,Although they are poor they are happy. Busy as he is ,he insists on studying. Though he is busy, he insists on studying. Busy as(though) he is ,he insists on studyin

10、g. Make a summary: as 译成“虽然，尽管”，引导让步状从必须用倒装语序； although 不倒装，且不能再与but连用，但能和yet连用； though 可倒可不倒,14,苍松优选,4.as引导方式状语从句,As引导方式状从 译成 “按照的方式” Remember,youmustdoeverythingasIdo. When at Rome, do as Romans do. We do farm work as the old peasant teaches us.,15,苍松优选,5.引导比较状语从句,用于“as.as.或notso/as.as.”中,前一个 as是副

11、词,后一个as是连词， “像(不和)一样”。 Your pen writes as smoothly as mine. This dictionary is not as/so useful as you think. This is as good an example as the other is. I can carry as much paper as you can.,16,苍松优选,6.引导条件状语从句,主要句式有：as long as /so long as 只要 As long as you study hard, you will make great progress.,

12、17,苍松优选,三、用作关系代词,as作为关系代词，用来引导定语从句，包括限制性定语从句和非限制性定语从句。 构成such/soas/ the sameas等结构，在从句中作主语、宾语和表语. 引导非限和which的区别： As we all know, Taiwan belongs to China. Taiwan, as we all know, belongs to China. Taiwan belongs to China , as we all know. as everybody knows, as you may remember, as you say, as I can s

13、ee, as I have said, as you may have heard 一些固定词组,18,苍松优选,注意：suchas与suchthat, soas与sothat的区别：that是连词，引出结果状语从句，在从句中不做成分；as是关系代词，引出定语从句，在从句中可作主语、宾语和表语。比较： He is such a nice boy that everyone likes him. He is such a nice boy as everyone likes. 这个男孩的性格如此之好，人们都喜欢他。 It is so difficult a problem that nobody

14、 can work it out. It is so difficult a problem as nobody can work out. 这个问题太难了，没有人能解决。,19,苍松优选,四、作介词，,1.表示“作为，当作,以身份” As a writer, he was famous. 2. as作为介词，常和以下动词连用 regardas/be known as/consideras useas/ describeas/be remembered as be honored as/ 作介词的as常用来引入补足语 They regard him as their leader. 宾补 Th

15、e report was considered as false. 主补,20,苍松优选,As和 like 都可以做介词,但词义是不同的, As 作为, 以资格, Like 像.与相似,As a scientist, he dedicated to the truth. She works like a beaver. 她工作勤勤恳恳,as 连词 像一样 +句子 like 介词 像一样 +词 I have never seen such a clever man _ he,21,苍松优选,五、用于一些固定搭配,1. such as 例如 2. asfor=as to sb/ sth.至于某人（

16、某事物） 3. soasto 以便,为了 4. as a matter of fact 事实上，其实 5. as a result 作为结果 6. as a result of 由于/作为的结果 7. as follows 如下 8. as far as I know/can see 就我所知,22,苍松优选,Read the following sentences: 1. Tom runs fast, but I run just as fast. 2. She doesnt sing so well as her sister. 3. I have changed it as you su

17、ggested. 4. We all like her as she is very kind. 5. He raised his voice so as to be heard. 6. Tired as they were, they walked on. 7. I never heard such stories as he told. 8. He is careful, as his work shows. 9. He works as a teacher. 10. As you sow, so will you reap.,23,苍松优选,1. A good many proposal

18、s were raised by the delegates, _was to be expected. A. that B. what C. so D. as 2. _might be expected, the response to the question was very mixed. A. As B. That C. It D. What 3. _he works hard, I dont mind when he finishes the experiment. A. As soon as B. So far as C. As well as D. As long as,OK,OK,OK,Checking,24,苍松优选,4. It is generally believed that teaching is _it i