1.As：when/since/as…as…/I know some of the family secrets ，young as I am. （讓步）/Do as I do（壯從）/Tom is unusually tall，as are his brothers，（倒裝） /To shut your eyes to facts， as many of you do，is foolish.（定語從句）/as for= as to至于（句首）/as much=so/as long as：只要/=while/as such：確切而言
2.Unless
3.Until
4.Before
5.Because
6.Either
7.So
8.Nor
9.Never
10.For
11.Since
12.If
13.Between
14.After
15.Only if
16.Lest 子句為should+V
17.Although/while/when
18.Now that
19.If only ：If only she would marry me ！ （常表示愿望或未實現(xiàn)的條件，尤用于感嘆句）
20.Provided that
21.So that
22.Even if
23.Neither
24.Each
25.Who
26.Which
27.What： what if： what if the rumor is true？（萬一……怎么辦）
What though： what though we are poor， we still have each other.（既使……又有什么關系）
28.Except/aside from/other than ：except for+N/except that…
29.Or：or else=otherwise
30.But
EX： I never go past my old school but I think of Mr merry，the head-master.
31.That
32.In that
33.Such that
34.As if/as though： He looks as if he had seen a ghost.（子句用過去時）
35.Where
36.How： He told me how he had read about it in the newspaper.（=that ）（引導間接引語）
37.Supposing /if
38.Whereas/on the other hand/while
39.But for /but that/ except for
40.While：While I admit that the problems are difficult， I don't agree that they can not be solved.（=although）
41.When：since/although
42.Nevertheless/nonetheless
43.Only：The book is likely to be useful， only it is rather expensive（=however）
He would probably do well in the exam， only that he gets rather nervous（=but that）
2.Unless
3.Until
4.Before
5.Because
6.Either
7.So
8.Nor
9.Never
10.For
11.Since
12.If
13.Between
14.After
15.Only if
16.Lest 子句為should+V
17.Although/while/when
18.Now that
19.If only ：If only she would marry me ！ （常表示愿望或未實現(xiàn)的條件，尤用于感嘆句）
20.Provided that
21.So that
22.Even if
23.Neither
24.Each
25.Who
26.Which
27.What： what if： what if the rumor is true？（萬一……怎么辦）
What though： what though we are poor， we still have each other.（既使……又有什么關系）
28.Except/aside from/other than ：except for+N/except that…
29.Or：or else=otherwise
30.But
EX： I never go past my old school but I think of Mr merry，the head-master.
31.That
32.In that
33.Such that
34.As if/as though： He looks as if he had seen a ghost.（子句用過去時）
35.Where
36.How： He told me how he had read about it in the newspaper.（=that ）（引導間接引語）
37.Supposing /if
38.Whereas/on the other hand/while
39.But for /but that/ except for
40.While：While I admit that the problems are difficult， I don't agree that they can not be solved.（=although）
41.When：since/although
42.Nevertheless/nonetheless
43.Only：The book is likely to be useful， only it is rather expensive（=however）
He would probably do well in the exam， only that he gets rather nervous（=but that）