英语六级语法精要：since和for的用法
时间：2019-01-17 作者：英语课 分类：大学四六级阅读
英语课
since 用来说明动作起始时间，for用来说明动作延续时间长度;
eg：I have lived here for more than twenty years.
I have lived here since I was 2 born 3.
for后面多接一段时间，而since后面则接一个时间点，若since后面也出现时间段，则在时间段后加ago;
eg： I have lived here since twenty years ago.
错句：I have worked here since many years.
since句型：
It is +一段时间+ since从句，since从句要用一般过去时;
eg：It is two years since I became 4 a postgraduate 5 student.
It is three years since I joined the army 6.
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收听单词发音 1
since
adv.后来；conj.既然，因为，自从；prep.自从
参考例句：
He's been working in a bank since leaving school.自从毕业后，他就一直在一家银行工作。
I have known him ever since I was a child.我自孩提时代起就已经认识他了。
2
was
v.(is,am的过去式)是，在
参考例句：
He said he was right.他说他是正确的。
He was cold and hungry.他又冷又饿。
3
born
v.动词bear的过去分词；adj.出生的，与生俱来的
参考例句：
The baby can cry as soon as he is born.婴儿生下来就会哭。
I feel as if I had been born again.我有一种再生之感。
4
became
v.(become的过去式)成为
参考例句：
He became a doctor at the age of 27.他27岁时成了一名医生。
He became a millionaire when he was still young.他还年轻时就成了百万富翁。
5
postgraduate
adj.大学毕业后的，大学研究院的；n.研究生
参考例句：
I didn't put down that I had postgraduate degree.我没有写上我有硕士学位。
After college,Mary hopes to do postgraduate work in law school.大学毕业后， 玛丽想在法学院从事研究工作。
6
army
n.军队，陆军，正规军，野战军
参考例句：
The army numbered four to five thousand at the start.这支军队开始才有四五千人。
What is the total strength of the enemy army?敌军人数总共有多少？
adv.后来；conj.既然，因为，自从；prep.自从
- He's been working in a bank since leaving school.自从毕业后，他就一直在一家银行工作。
- I have known him ever since I was a child.我自孩提时代起就已经认识他了。
v.动词bear的过去分词；adj.出生的，与生俱来的
- The baby can cry as soon as he is born.婴儿生下来就会哭。
- I feel as if I had been born again.我有一种再生之感。
v.(become的过去式)成为
- He became a doctor at the age of 27.他27岁时成了一名医生。
- He became a millionaire when he was still young.他还年轻时就成了百万富翁。
adj.大学毕业后的，大学研究院的；n.研究生
- I didn't put down that I had postgraduate degree.我没有写上我有硕士学位。
- After college,Mary hopes to do postgraduate work in law school.大学毕业后， 玛丽想在法学院从事研究工作。
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英语六级