供一些辅助性的补充说明，for引导的原因状语从句只能放于主句之后，并且必须用逗号将其与主句隔开。
5.目的状语从句 引导词 so that 用法 意为“以至，以便”。目的状语的谓语常含有may, might, can, could, should, would等情态动词。 in order that 意为“为了”，相当于so that. in order to后面可以跟动词原形构成目的状语，不是目的状语从句。
6.结果状语从句 引导词 so…that 用法 意为“如此…以至于…”。 so+ adj./adv.原级+that, so是副词，只能修饰形容词和副词。so还可与表示数量的形容词many, few, much, little(这四个形容词表示多或少时)连用,形成固定搭配。so+ many 或few+复数可数名词+that; so+ much或He could not have seen me, for I was not there. 示例 Try to speak loud enough so that people can hear you clearly. Mr. Green speaks very loudly so that all the people can hear him clearly. We shall let you know the details soon in order that you can/may make a arrangements. 示例 This year it has rained so heavily in South China that lots of problems are caused. The ice on the lake was so thin that people couldn’t skate on it. Too often, we spend so much time thinking about the future that we fail to enjoy the little+不可数名词+that. present. There are so few notebooks that I can’t give you any. such..that 意为“如此…以至于…”。有三种结构：It’s such a wonderful song that we all like it. Simon is such dishonest person that no one believes him. The boy is so young that he can’t go to school.= He is such a young boy that he can’t go to school. such+a(an)+adj.+单数不可数名词+that; such(+adj.)+不可数名词+that; such( + adj.) +复数可数名词+that, such是形容词，修饰名词或名词词组。有时可与so…that句型转换。
7.让步状语从句 引导词 though 用法 意为“虽然”。不能和but连用。但是可以同yet(still)连用，构成示例 So it has lived up to now though it isn't strong at all. Though they are twin though…yet(still). though较普遍，常用于非正式的口语和书面语中。even能和though组合表示强调，在这里even though=even if(no matter if; though即使…也…)。though可以独立用作副词，常放在句末，意为all the same(还是；仍然)或however(可是；然而)。 although 意为“虽然”。不能和butbrothers, they don’t look like each other. Even if/ Even though we could afford it, we would afford it, we wouldn’t go abroad for our vacation. Although he died several 连用。但是可以同yet(still)连用，构成years ago, I can still remember the days we spent together and what he has taught me about love. Although we had little food with us, we decided to spend the night in the car. although…yet(still). although较为正式，语气比though重，常用以强调让步概念。even不能和although组合。
8. 比较状语从句 引导词 as…as... 用法 意为“和…一样”。表示同级的比较。使用时要注意第一个as为副词，第二个as为连词。其基本结构为：as+adj./adv.原级+as。若有修饰成分，如twice, three times, half, a quarter等，则须置于第一个as之前。 not as / so…as 意为“和…不一样，不如”。也表示同级比较。 She is not so (as ) outgoing as her sister. This dictionary is not as/so useful as you think.
9.方式状语从句
引导词 as/(just)as...so… 用法 意为“犹如，就像”。引导的方式状语从句通常位于主句后，但在(just)as...so…结构中位于示例 When in Rome, do as the Romans do. As water is to fish, so air is to man. 示例 She is very good at painting. She can paint as well as here teacher. I ran out as quickly as possible. 句首，这时as从句带有比喻的含义，意为“正如…，就像”，多用于正式文体。 as if/ as though 意为“就像，好像”。两者的意义和用法相同，引出的状语从句谓语多用虚拟语气，表示与事实相反，有时也用陈述语气，表示所说情况是事实或实现的可能性较大。常译作“仿佛…似的，好像…似的”。 练习一 一. 单项填空
1. _______ he’s old, he can still carry this heavy bag. A. Though B. Since C. For D. So
2. ---Do you know if he _______ to play basketball with us? ---I think he will come if he ______ free tomorrow.
A. comes; is B. comes; will be C. will come; is D. will come; will be 3. In the zoo if a child _____ into the water and can’t swim, the dolphins may come up ______ him.
A. will fall; to help B. falls; to help C. will fall; help D. falls; helping
4. I don’t remember ________ he worked in that city when he was young. A. what B. which C. where D. who
5. We will stay at home if my aunt ________ to visit us tomorrow.
If would never forget here smile, or the way her eyes shone as if we were the same age. It looks as if the weather may pick up very soon. A. comes B. come C. will come D. is coming
6. The police asked the children _______ cross the street ________ the traffic lights turned green.
A. not; before B. don’t; when C. not to; until D. not; after
7. I was late for class yesterday _______ there was something wrong with my bike.
A. when B. that C. until D. because
8. I’ll go swimming with you if I ________ free tomorrow. A. will be B. shall be C. am D. was
9. In the exam, the ________ you are, ______ the _______ mistakes you will make.
A. careful; little B. more careful; fewest C. more careful; fewer D. more careful; less
10. You should finish your lessons _______ you go out to play. A. before B. after C. when D. while 11. I hurried _____ I wouldn’t be late for class. A. since B. so that C. as if D. unless
12. When you read the book, you’d better make a mark _______ you have any questions.
A. which B. that C. where D. though
13. The teacher raised his voice _______ all the students could hear him. A. for B. so that C. because D. in order 14. He took off his coat _______ he felt hot. A. because B. as C. if D. since
15. It is ______ that we’d like to go out for a walk.
A. a lovely day B. too lovely a day C. so lovely a day D. such lovely a day
16. Mary had ______ much work to do that she stayed at her office all day. A. such B. so C. too D. very
17. _______ I felt very tired, I tried to finish the work.
初中状语从句讲解及习题附答案
