as的用法归纳全

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.
Period3:Sentence Patterns
1
92.1
2
95.2
3
50.3
4
90.4
5
源自文库
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 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 dying to hear about your experience in the
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；
? 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.
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.
展评
as引导时间状语从句
区别
时间 与主句谓语动作
连词
whe 延续性动词 同时发生&先于主
n
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
& 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
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
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
army.
be eager to do
be dying for sth.(n. pron.) be eager for be dying to do sth.
long to do
long for
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
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.
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