副詞性從句之狀語從句(之一)——時間狀語從句
2022-05-15由 Pudding英語 發表于 畜牧業
他向誰求助的英文
一、什麼是狀語?什麼是狀語從句?
狀語
由具有
副詞性的詞、短語或句子充當
。例如:
I went to the countryside
last summer
。
To get good grades
, we should study hard。
為了取得好成績,我們應該努力學習。
Knowing Sally was ill
, her mother was worried about her。
I went to Shanghai
with my parents
。
以上斜體部分都是在句子
中作
狀語,狀語有名詞、不定式、分詞、介詞短語、形容副或句子充當。
He likes eating pears
very much
。
(簡單句,副詞very much做狀語,表示喜歡的程度。)
He likes eating pears
because they are yummy
。
(複合句,because they are yummy做狀語,表示原因)
在複合句中,
充當狀語的句子叫狀語從句
。狀語從句主要
修飾主句或主句中的動詞、形容詞和副詞
,
作用相當於副詞,又稱作副詞性從句。
二、狀語從句按照作用可以分為時間狀語從句、地點狀語從句、原因狀語從句、條件狀語從句、結果狀語從句、目的狀語從句、讓步狀語從句、方式狀語從句和比較狀語從句。今天我們要講的內容是時間狀語從句。
1。 從屬連詞when, while與as
2。 從屬聯絡:before(在……之前),after(在……之後),since(自從……以來)
before 表示主句的動作發生在從句動作之前
Before
the sun came out
, the sky got dark。
Please remember to turn off the light
before you leave the classroom
。
after表示主句的動作發生在從句之後
After
they came back to the station
, the train had already gone。
She has been my teacher
sine I came to this school.
3。 till/until引導的時間狀語從句:主句為肯定句時,主句的謂語動詞
必須是
延續性動詞;主句為否定句時,主句的謂語動詞是非延續性的,常用not…until…結構,意思是:直到……才
Keep trying
till
you succeed
。
Judy did
n’t
leave her office
until her husband came
。
4。 as soon as 一……就……,如果主句為祈使句或一般將來時或含有情態動詞,從句用一般現在時表示將來,即:主祈從現、主將從現、主情從現。
As soon as
he arrived in Paris
, he called me。
I will phone you
as soon as I finish my meeting
。
5。 by the time到某一時間點為止,主句的動作已經完成,用完成時態。
By the time
I got back to school,
the bell had rung。
6。 once多與過去時態連用,但是主句用一般現在時,從句通常用一般現在時表將來。
Life is busy, but
once I get to school
, I like reading books。
7。特殊詞引導的時間狀語從句
The minute
I sat down in front of the TV
, my mum came over。
由the moment, the minute, the instant, every time等名詞引導時間狀語從句。
8。 instantly, immediately, directly
作連詞
可引導時間狀語從句
Instantly
she’d gone
, her mum came over to find her。