因果句、条件句、让步句的表达有多法

　　当我们表达因果关系时首选方式是用连词because、since、as等引出主从句来。如“因为我没有记住这些操作规则，所以实验没有成功。”译成英语便是：

　　　　 Because I did not remember the operation rules. I failed in the experiment.

　　　　 在高二，学完了动名词、分词、独立主格结构及with引导的复合结构等语法项目后，我们的表达思维空间迅速扩大，写作表达方式就迅速多样化了。上述一句又可以写作如下：

　　　　 一、用分词表达（注意分词的逻辑主语要与全句的主语一致）

　　　　 Not having remembered the operation rules. I failed in the experiment.

　　　　 二、如果主、从句的主语不一致，我们可以换成以with引导的复合宾语结构、独立主格结构及介词because of+动名词复合结构来表达。

　　　　 例句：因为她没有告诉我这些操作规则，所以我的实验没成功。
　　　　 1、用with复合宾语结构表达：
　　　　 With her not having told me the operation rules. I failed in the experiment.
　　　　 2、用独立主格结构表达：
　　　　 She not having told me the operation rules. I failed in th e experiment.
　　　　 3、用because of+动名词复合结构表达：
　　　　 Because of her not having told me the operation rules. I failed in the experiment.
　　　　 4、Because she did not tell me the operation rules. I failed in the experiment.

　　　　 注意：because的相应介词（词组）是for或because of，故可以构成动名词的复合结构式，因而有四法；而as、since却没有相应的介词，故用as、since表达的因果句最多只有三法。

　　　　 总起来说，因果句型，若主从句的主语是同一个，常有两种表达法：because、as、since引导的主从句式、with引导的复合宾语式、独立主格结构及because of引导的动名词复合结构式。

　　　　 另外有两种句型，即以if 引导的条件状语从句和以although引导的让步状语从句，亦是这种情况，此处就不累述了。

　　　　 根据上述提示以尽可能多的表达法完成下列两对句子：
　　　　 1、如果多给我点钱，我就买更好的。
　　　　 2、是是妈妈多给点钱，我就买一个更好的。
　　　　 3、虽然人家给我讲了多少次，我还是没有理解这个规律。
　　　　 4、虽然张老师给我讲了多次，我还是没有理解这个规律。
　　　　 Key(5)
　　　　 Key (5): 1. A: It I am given more money, I’ll buy a better one. B: Given more money, I’ll buy a better one. 2.A: If my mother gives more money to me, I’ll buy a better one. B: With my mother giving me more money, I’ll buy a better one. C: My mother giving me more money, I’ll buy a better one. 3. A: Though I was told several times, I did not understand the rule. B: Told several times, I did not under stand the rule. 4. A: Although Mr Zhang told me several times, I did not follow the rule. B: With Mr Zhang having told me several times, I did not follow the rule. C: Mr Zhang having told me several times. I did not follow the rule.