as的用法归纳(全)

❖ As she has been ill perhaps she need some help.
❖ I stayed at home because it rained.
❖ Since everyone is here, let’s start.
❖ It must have rained last night, for the ground is wet.
❖ 7. as follows
如下
❖ 8. as far as I know/can see 就我所知
❖ Read the following sentences:
展评
❖ 1. Tom runs fast, but I run just as fast.
❖ 2. She doesn’t sing so well as her sister.
五、用于一些固定搭配 展评
❖ 1. such as 例如
❖ 2. as for=as to sb/ sth. 至于某人（某事物）
❖ 3. so as to ．．． 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
long to do
long for
1
92.1
2
95.2
3
50.3
4
90.4
5
89.3
Βιβλιοθήκη Baidu
6
60.0
7
43.9
8
96.9
9
89.3
10
61.3
11
2.0
12
96.2
13
90.2
14
48.1
15
100.0
9日单选正答率
导
7…says that providing children with access to the information superhighway is of great importance. have access to ① 获得…的机会（权利） ② 进入…的通道
Only high officials 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.
. adj./adv+as+ S+be/v.
3. Doctor as she is, she can’t cure her own disease.
n. + as +S+ be (句首名词不带冠词)
4. Try（hard） as he does（will）, he never seems able to do the work beautifully. v. +as +S+ do/does/did
6.引导条件状语从句 展评
主要句式有：as long as /so long as 只要
As long as you study hard, you will make great progress.
三、用作关系代词
展评
• 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/so…as/ the same…as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.
语气由强至弱：because>since>as>for
as引导原因状语从句
展评
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
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.
因，有时译作“既然”
for 表附加的解释、说明或推理。不放句首
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.
3.as引导让步状语从句（倒装） 展评 1. Strong as he is, he is afraid of pain. 2. Slowly as the tortoise walks, it can beat the rabbit.
展评
as用法归纳
adv.
引导时间状语从句 展评
引导原因状语从句
conj.
引导让步状语从句
引导方式状语从句
as
prep.
引导比较状语从句
relative pron.
引导定语从句
固定用法
展评
一、作副词
Jack is 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 don’t have as much. 肯定句： “像（和）…一样” 常用于as…as结构. 否定句：“不像（和）…一样” 常用于 not as(so)…as
as everybody knows, as you may remember, as you
say, as I can see, as I have said, as you may have heard 一些固定词组
展评
注意：such…as与such…that, so…as与so…that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 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。
❖ When at Rome, do as Romans do.
❖ We do farm work as the old peasant teaches us.
5.引导比较状语从句 展评
用于“as...as...或not so/ as...as...”中,前一个 as是副词,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.
四、作介词，
展评
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 regard…as/be known as/consider…as use…as/ describe…as/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 The report was considered as false. 主补
二、用作连词 1. 引导时间状语从句
⒈ I read the letter as I walked along the river. ⒉ As I get older I get more optimistic. ⒊ John was having his dinner when I saw him. ⒋ She can write only when the baby is asleep. ⒌ We must strike while the iron is hot. ⒍ While we were reading, the teacher came in.
展评
区别
连词
whe n
as引导时间状语从句
时间 与主句谓语动作
延续性动词 同时发生&先于主
暂时性动词
句发生
展评 只用as
while 延续性动词 同时发生&过程中
as
当…的时候 延续性动词
同时进行
①两个动作同时进行
“一边…,一边…” ②两个同步发展的动作或 行为, “随着”
2. 引导原因状语从句
展评
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.
思
10:43 to 11:00
①Look through the guideline； ②Make full comprehension of the key points；
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
4.as引导方式状语从句
展评
❖ As引导方式状从 译成 “按照……的方式”
❖ Remember, you must do everything as I do.
& tick the points that confuse U; ③Then finish the following exercises;
议
11:00 to 11:05
Task1: Summarize the usage of “as” Task2: Discuss the exercises that confuse u
He is afraid to touch the snake.
6.We are dying to hear about your experience in the
army.
be eager to do
be dying for sth.(n. pron.) be eager for be dying to do sth.
as引导让步状语从句
展评
❖ 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 studying.
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
展评
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
Period3:Sentence Patterns
1
92.1
2
95.2
3
50.3
4
90.4
5
89.3
6
60.0
7
43.9
8
96.9
9
89.3
10
61.3
11
2.0
12
96.2
13
90.2
14
48.1
15
100.0
9日单选正答率
导
3. She was afraid to go into the yard because