状语从句

when

1."如果"

=if/on condition that...(阅读)

2."既然，因为"

=since/now that/as/in that/because

because+主干完整的简单句
because of+n./n.短语/名词性从句(宾语从句)=due to(不放于句首)/owing to/on account of/as a result of/for the reason of

3."就在此时"

主句时态:

过去完成时：
had done
过去进行时：
was/were doing sth.
过去将来时:
was/were about to do sth.
was/were on the point of doing sth.
was/were on the way

while

1."而，却"=whereas

放于句中，前后各有一个结构相似，意义对比的简单句

2."虽然，尽管"=although

多用于句首

since

since then/ever since/since+时间...have/has done
since...did...,...have/has done

It is/has been+时间段+since...did...
It was/will be/would be/can be/could be/may be/might be+时间段+before...

翻译考点：

It is 3 years since he came（非延续性动词） here.(怎么写怎么翻译--肯定翻译)
他来到这3年了。
It is 3 years since he stayed(非延续性动词) here.(否定翻译)
他不待在这3年了。

延续性动词：

非延续性动词：

until

1.主句谓语动词为非延续性动词否定句后面接until从句
否定词+非延续性动词...until...
才。。。直到。。。
2.谓语是延续性动词为肯定句（be），此时until=before(阅读)
3.It was not until...that

before

"还没来得及，趁。。时候"

before it is too late,......
before it gets worse,.....

once

adv."曾经，一次"
conj."一旦。。。就。。。"

倍数

分数/倍数+as+(adj./adv.)原级+n.+as+...
the+比较级...,the+比较级...
分数/倍数+比较级+than...

more

...more A than B，"与其B不如A"
...more than...，“不仅仅”
...no more than...，"仅仅"（强调少）
...no more...than...=...not any more...than...，"A不。。。B也不。。。（两者都不）"
A as...as B，"A是。。。B也是。。。（两者都）"
...less A than B，"与其A，不如B"
...less than...，"少于，不足"
...no less than..，"不少于（多达）"
...no less...than...，"两者都"

比较级

much/far/by far/a lot/a bit/a little/even/rather/still+比较级

to our .....

to our disappoinment，让我们失望
to our delight，让我们高兴
to our excitment，让我们激动
to our satisfaction，让我们满意
to one's knowledge，就某人所知

can't

can't do sth. too much
can't do sth. enough，在怎么做也不过分
can't do sth. more/better

the minute/the moment/the second/the day/the instant，"一。。。就。。。"
every time，"每次。。。就。。。"
the first time，"第一次。。。就。。。"
必选：immedictly/instantly/directly

as的用法

as soon as...

"尽可能早"（从现在到未来时间段短）
"一旦。。。就。。。"

as long as

"只要"；"尽可能久（时间)"

as far as

"就。。。而言，尽可能远（距离）"

as far as...be concerned,......

as good as...

"尽可能好"

prep.=to be,"作为"

adv.=so

conj.
一边。。。一边，随着
as time goes by,
with time going by,

既然，因为

正如。。。就像。。。，按照，依照

虽然，尽管

adj./adv./n.(n.的前面没有a/an/the)+as+主语+谓语

-ever

however/no matter how+adj./adv.
whatever/no matter what+n.
如：however/no matter how well-preraed he is,
well-prepard as/though he is,

though/although

even if/even though，"即使"

in spite of+n./despite+n.，"虽然，尽管"
although+句子，"虽然，尽管"

if

if=condition that...
若考察时态，且题干中有两个空，每个空前都有个when/if/一个when一个if，则第一个空will do，第二个空do/does

unless

"除非(从句)。。。否则（主句）"+简单句的肯定句

假如，假设

suppose that...
supposing that...
assuming that...
given that...
granted that...
granting that...
provided that...
proving that...

为了

so that...can/could...
in order that...can/could...
in order to do sth.

where/wherever用法：

1.where/wherever there be...
2.put/place/lay/stand/sit/wait/stay/keep/leave...where...