状从句解和状修、形容、副或整个句子。
通常由副、介短、不定式、分和从句等担当。
例如：1. Naturally , our grandparents were pleased to get our phone call . (副 )2.We worked hard , from sunrise to sunset . (介状短 )3.To help my disabled aunt , I spend an hour working in her house every day . (不定式 )4.Seen from a distance , the farmhouse looked deserted . (去分 )5.I know how to light a camp fire because I had done it before .（原因状从句）状的位置比灵活，可以位于句首、句末或句中。
enough用作状修形容和副必后置。
状从句主要用来修主句或主句的。
一般可分九大，分表示、地点、原因、目的、果、条件、步、比和方式。
尽管种多，但由于状从句与构和用法相似，所以理解和掌握它并不。
状从句的关是要掌握引不同状从句的常用接和特殊的接即考点。
分列如下:1．状从句常用引： when, as, while, as soon as, while, before, after, since , till,until特殊引： the minute, the moment, the second, every time, the day，the instant, immediately , direc tly, no sooner ⋯ than, hardly ⋯ when, scarcely ⋯ whenI didn ’realizet how special my mother was until I became an adult.While John was watching TV, his wife was cooking.The children ran away from the orchard(果园 ) the moment they saw the guard. Nosooner had I arrived home than it began to rain.Every time I listen to your advice, I get into trouble.2．地点状从句常用引： where特殊引： wherever, anywhere, everywhereGenerally, air will be heavily polluted where there are factories.Wherever you go, you should work hard.3．原因状从句常用引： because, since, as, since特殊引： seeing that, now that, in that, considering that, given that, considering that, Myfriends dislike me because I ’ mhandsome and successful.Now that everybody has come, let ’begins our conference.The higher income tax is harmful in that it may discourage people from trying to earn more. Considering that he is no more than 12 years old, his height of 1.80 m is quite remarkable.4．目的状从句常用引： so that, in order that特殊引： lest, in case, for fear that，in the hope that, for the purpose that, to the end that The boss asked the secretary to hurry up with the letters so that he could sign them.The teacher raised his voice on purpose that the students in the back could hear more clearly.5．果状从句常用引： so ⋯ that, so⋯ that, such ⋯ that,特殊引： such that, to the degree that, to the extent that, to such a degree that, He gotup so early that he caught the first bus.It ’such a good chance that we must not miss it.To such an degree was he excited that he couldn ’sleept last night.6．条件状从句常用引： if, unless,特殊引： as/so long as, only if,providing/provided that, suppose that, in case that, on condition thatWe’ ll start our project if the president agrees.You will certainly succeed so long as you keep on trying.Provided that there is no opposition, we shall hold the meeting here.7．步状从句常用引： though, although, even if, even though特殊引：as(用在步状从句中必要倒装)，while ( 一般用在句首)，no matter⋯，in spite of the fact that, while, whatever, whoever, wherever, whenever, however, whicheverMuch as I respect him, I can’agreet to his proposal.尽管我很尊敬他，我却不同意他的建。
