（4）Seeing this, he became rather worried. 看到这些情况，他很有些发愁。
语法分析：现在分词或短语作状语，表示时间。
（5）Not knowing heis address, we couldn't get in touch with him. 因为不知道他的地址，我们无法和他联系。 语法根系：现在分词或短语作状语，表示原因。
（6）The day being fine, we decied to have a picnic by the lake. 天气不错，我们打算到湖边野餐。
语法分析：现在分词有时可有自己的逻辑主语。 （7）I stand prepared to dispute it. 我准备对此提出异议。
语法分析：有些动词跟过去分词作状语，中间不加都好。 <四> 巩固练习
1. She stood [help], not knowing what to do.
2. He went out of the room. [take] the flowers with him. 3. [open] the drawer, she took out a key.
4. [tear] that the police would recognize him, he never went out in daylight.
5. She sat at her desk [work].
6. [arouse] by the crash, she leapt to her feet.
7. [look] at politically, it is an important question. 8. A coman came in, [follow] by her son. 答案：
1. helpless 2. taking 3. Opening 4.Fearing 5.working 6. Aroused 7. Looked 8. followed 96. 状语从句 <一> 例句
Once you've finished, go to bed. 一干完，你就睡觉去吧。 <二> 语法分析
英语中有大量的时间状语从句，多由连词引导，也有一些时间状语从句不由连词引导。从句可以位于句首、句中或句末。状语从句按意义可以分为时间状语从句、地点状语从句、原因状语从句、让步状语从句、目的状语从句、条件状语从句、结果状语从句、方式状语从句以及比较状语从句等。 <三> 触类旁通
（1）On and on he went, till he reached the outskirts of the wood. 他走了又走，直到走到林子边。
语法分析：大量的时间状语从句，多由连词引导。 （2）If I were you, I'd go to school tomorrow. 我要是你，明天就去上学。
语法分析：条件状语从句多由if 或unless 引导，if有时可以省略，而把从句的语序倒装。 （3）So many people came to the concert that some couldn't get in. 那么多人来听音乐会，以至有些人无法进来。
语法分析：结果状语从句多由so that, so...that, such...that以及that等引导。 （4）Where others are weak, he is strong. 别人的弱点正是他的优势。
语法分析：where 引导的从句，除了表示地方外，还可以表示处境等，可有多种含义。 （5）Some prased him, whereas others condemned him. 有些人赞扬他，而另一些人却谴责他。
语法分析：although, though, while, whereas等多引导让步状语从句 （6）Since I haven't got her address, I can't write to her. 因为我没有她的地址，所以我无法给她去信。
语法分析：原因状语从句多由because, as, since, in case等引导。 <巩固练习>
1. I had been less cautions, I might have been more wise. 2. I show everything on my face, I'm angry or pleased. 3. My father has bought me a bicycle that I can get to school. 4. The situation is such agreement is unlikely. 5. Drink this, you will be sick.
6. [see] he refused to help us, there's no reason why we should now
help him.
7. as I would like to come. I cannot. 8. I live there were plenty of sheep. 9. She is as tall her father. 参考答案：
1. If 2. whether 3. so 4. that 5. else 6. Seeing 7.Much 8. Where 9.as 97.倒装句 <一> 例句
Here are my replies to your questions. 这是我对你的问题的回答。 <二> 语法分析
由位于句首的there, here, now 以及then等副词引导的句子，句子的顺序要倒装。英语大多数的句子都是自然语序的，即主语在谓语前面，这和汉语一样。如果谓语提到主语前面，则为倒装语序。整个谓语提前，是全部倒装，只有部分谓语提前，杂事部分倒装。一般情况下，有一些引导词引导的句子是要倒装的，如there, so, neither, nor等。某些有否定意思的副词放在句首，也常用倒装句。 <三> 触类旁通
（1）A veey reliable person he is, to be sure. 他是个非常可靠的人，没有问题的。
语法分析：如果为了修辞的需要，句子的宾语可以提前，构成倒装句。 （2）\“这我知道，”那个英国人答道。
语法分析：在简介引语后的插入语中，主语有时可放在谓语后面。 （3）Watching the performances were mostly foeigh tourists. 观看演出的大多数是一些国外游客。
语法分析：进行时态中的分词有时可以移到句首，从而来对动作加以强调。 （4）Seated on the ground are a group of young people. 坐在地上的是一伙年轻人。
语法分析：以过去分词作表语的句子，分词有时可以提前，句子的主语放到后面。 （5）In the distance could be seen the purple mountains. 远处可以望见紫色的群山。
语法分析：有些句子没有宾语，而主语又比较长，有时可以把状语提前，而把主语放到谓语后面。
（6）Not until yesterday did I learn anything about it. 直到昨天我才对这件事有所了解。
语法分析：有些短语，尤其是介词短语移到句首时也可以使用倒装语序。 <四> 巩固练习
1. [hang]from the rafters were strings of onions.
2. [scatter] like stars in the deep mountains are numerous