高考英語(yǔ)知識(shí)點(diǎn)首輪復(fù)習(xí):Since從句的用法

編輯: 逍遙路 關(guān)鍵詞: 高三學(xué)習(xí)指導(dǎo) 來源: 高中學(xué)習(xí)網(wǎng)

【摘要】高一高二的同學(xué)忙著準(zhǔn)備期中考試的時(shí)候,高三的同學(xué)們正在進(jìn)行緊張的高考前地理論復(fù)習(xí),下面是準(zhǔn)備的“高考英語(yǔ)知識(shí)點(diǎn)首輪復(fù)習(xí):Since從句的用法”歡迎大家點(diǎn)擊參考!

1.高中英語(yǔ)知識(shí)Since從句為非延續(xù)性動(dòng)詞的過去時(shí)或現(xiàn)在完成時(shí),時(shí)間的起點(diǎn)應(yīng)該從從句動(dòng)作完成時(shí)刻算起。

例如:

Things have changed a lot since I wrote to you last time.

自我上次給你寫信之后,情況已發(fā)生了很大的變化。

She has lived with us since she has come here.

自從她來到這里,就一直和我們住在一起。

2. Since從句為延續(xù)性動(dòng)詞的一般過去時(shí),表示動(dòng)作或狀態(tài)的結(jié)束。其含義與動(dòng)詞的詞義恰好相反,具有否定意味。

例如:

All has changed since he was at home.

自從他離開家以后,這里的一切都變了。

I haven’t written to her since she lived in London.

自從離開倫敦以來,我還沒有給她寫過信。

He has never been to see me since I was ill.

自從我病愈以來,他一直沒有來看我。

Two years have passed since I last smoked.

我戒煙已經(jīng)兩年了。

但如果since從句是延續(xù)性動(dòng)詞的現(xiàn)在完成時(shí),則表示動(dòng)作由開始延續(xù)至說話的時(shí)候,具有肯定意味。

例如:

He has never been to see me since I have been ill.

自從我生病以來,他一直沒有來看我。

She has talked little since she has stayed at home.

自從她呆在家里以后,就很少講話。

Since we have owned a car, we have gone camping every year.

自從我們有了汽車后,年年都去野營(yíng)。

3. 在現(xiàn)代英語(yǔ)中,since從句是延續(xù)性動(dòng)詞的一般過去時(shí),有時(shí)候也可以表示肯定意味。此時(shí),多半用ever來加強(qiáng)since的語(yǔ)義。

例如:

She has known me ever since she was a child.

她從小就認(rèn)識(shí)我了。

I have live here ever since I was born.

我生下來就住在這里。

4. 在it is+時(shí)間+since從句結(jié)構(gòu)中,since從句是非延續(xù)性動(dòng)詞的一般過去時(shí),含有肯定意味。

例如:

It is three years since her husband left her.

她丈夫離開她已經(jīng)3年了。

It is over sixty years since the People’s Republic of China was established.

中華人民共和國(guó)已經(jīng)成立60多年了。

5. 在it is+時(shí)間+since從句結(jié)構(gòu)中,since從句是延續(xù)性動(dòng)詞的一般過去時(shí),含有否定的意味。

例如:

It is three years since she stayed here.

她離開這里已經(jīng)3年了。

How long is it since you were a league member?

你退團(tuán)有多久了?

6. 在it is+時(shí)間+since從句結(jié)構(gòu)中,since從句是現(xiàn)在完成時(shí)或過去完成時(shí),均含有否定意味。

例如:

It is five years since we have seen her.

我們已經(jīng)5年沒有見她了。

It was years since I had seen her.

在那之前,我已經(jīng)有好久沒有見到她了。

It’s been a long time since I’ve seen you.

總結(jié):以上就是“高考英語(yǔ)知識(shí)點(diǎn)首輪復(fù)習(xí):Since從句的用法”的全部?jī)?nèi)容,請(qǐng)大家認(rèn)真閱讀,鞏固學(xué)過的知識(shí),小編祝愿同學(xué)們?cè)谂Φ膹?fù)習(xí)后取得優(yōu)秀的成績(jī)!

相關(guān)精彩內(nèi)容推薦:


本文來自:逍遙右腦記憶 http://yy-art.cn/gaosan/142122.html

相關(guān)閱讀:高三物理一輪復(fù)習(xí)策略 高考物理備考攻略