【文章內容簡介】 ot home when it began to rain.→Hardly had I got home when it began to rain.，until (not...until/till...直到……才)連詞 用法 動詞 意義 例句till/until 主語和從句都用肯定式 主句的動詞為連續(xù)性動詞 一直到……為止 I’ll stay here till/until the rain stops.not...till/until 主句用否定形式，從句用肯定形式 主句的動詞為非連續(xù)性動詞 直到……才 He didn’t go home till/until he finished his homework.如 Please remember to turn off all the lights before you leave the classroom.離開教室前，請記得把所有的燈都關上。二、地點狀語從句（在……地方）,wherever（無論在什么地方）等。指具體地點時，從句可用于主句之前或之后，表示抽象條件時，從句須放在主句之前。如：The university graduates are determined to go wherever they are needed most.那些大學畢業(yè)生們決心去最需要他們的地方。They are planting trees where there is plenty of water and sunlight.他們在陽光雨水充分的地方植樹。Where there is a will,there is a 。三、條件狀語從句（如果，假如）,unless（除非，要不……就不）,as long as（只要）,so long as（只要）,provided (that）（只要），suppose/supposing（假設），on condition (that）（如果）等。如：I may not e to see you recently unless I can plete the project ahead of time.除非我能提前完成那個項目，否則我最近不會來看你了。We can surely attain our goal as long as we are united as one.只要我們團結一致，我們肯定能實現(xiàn)我們的目標。What shall we do if we can not get the necessary data？如果我們弄不到必要的數(shù)據(jù)，我們怎么辦？They promised to let us have a meeting in their office on condition(that）we could keep it clean.如果我們能保持清潔，他們答應讓我們在他們的辦公室里開會。四、原因狀語從句,as由于,since既然，由于,now that既然，由于,not that...but that不是因為……而是因為……，seeing that，considering that等。如：He can’t deliver his lectures today because he has got a bad cold.他今天不能去講課了，因為他患了重感冒。I may not be able to attend your wedding party not because I’m not willing to but because I’ve been caught by something recently.我或許無法參加你的婚禮了，不是我不想去而是近來有些事情纏著我無法脫身。五、讓步狀語從句引導讓步狀語從句的從屬連詞有though（雖然）,although（雖然），even if（即使）,even though（即使）,as(盡管)，while(雖然),whether...or...(無論……還是……),no matter+疑問詞（無論）。although與though兩者意思相同，一般可互換，都可以與yet，still或nevertheless連用，但不能和but連用。如：He is unhappy though/although he has a lot of money.雖然他有許多錢，但他并不幸福。Although/Though it was raining hard，yet they went on playing football. 盡管雨下的很大，但他們仍在繼續(xù)踢足球。注：though還可用作副詞，意為“可是，然而”，置于句末。如：He said he would e；he didn’t ，可是他沒有來?！氨M管，雖然”的意思講引導讓步狀語從句時，從句往往放在主句的前面，而且用作讓步的部分（表語、狀語或動詞原形）總是提前到句首。若表語是名詞，前置時要省略冠詞。如：Child as he is，he knows a lot.盡管他是孩子，他卻懂得很多。Old as he is,he is still energetic.盡管他老了，卻依然精力充沛。（表語作為讓步的內容，因此提前了。）Try as he might,he couldn’t solve the problem.盡管他很努力了，但還是無法解決這個問題。(謂語提前了）Much as you suspected him,you couldn’t provide powerful evidence.雖然你非常懷疑他，但是你卻無法提供有力的證據(jù)。（狀語作為讓步的內容，因此提前了。）...or（不管……） 疑問詞+ ever與no matter+疑問詞（不管……，無論……）。however（不管怎樣）,whatever（無論什么）,whoever（無論誰）。no matter when(how,what,who,where,which）無論何時（怎樣，什么，誰，何地，哪個）等。如：Air exists everywhere although we can’t see it.盡管我們看不見空氣，但它卻無處不存在。No matter where you go on the earth,you will feel the gravity.無論你走到地球的什么地方，你都會感覺到地引力。We’ll start our meeting on time whe