耀华中学马腾
在教学过程中发现同学们对复合句、并列句和简单句的转换拿捏不准，今天给大家来归纳总结一下如何做好这3种句式之间的转换。
情况1.把时间状语从句转化为一个介词短语。
she went for a walk after she had supper.→she went for a walk after supper.
i could swim when i was eight years old. →i could swim at the age of eight.
情况2.把because引导的原因状语从句转化为because of短语。
he was late for school because it rained he**ily.
→he was late for school because of the he**y rain.
情况3.把wh-（how）引导的宾语从句用“疑问词＋动词不定式”可以转化为简单句，方法是：去掉宾语从句的主语，将其谓语变为“to+动词原形”（有助动词的，要一并去掉）。
i don’t know how i can answer the question.→i don’t know how to answer the question.
please tell me what i should do first.→please tell me what to do first.
情况4.把so…that…引导的含结果状语从句的复合句转化为简单句时，要达到三看。
一看结果：结果是肯定的用enough to do sth.转换，结果是否定时，用too…to…或用not enough to do sth.转换。
二看主语：如果主从句的主语不统一，加上for连接从句的主语。
三看宾语：如果从句的宾语和主句的主语指的是同一人（物），应删去从句中的宾语。
he is so young that he can’t join the army.→he is too young to join the army.
she works so hard that she can pass the exam.→she works hard enough to pass the exam.
the box is so he**y that we can’t carry it.→the box is too he**y for us to carry.
the problem is so easy that i can work it out.→the problem is easy enough for me to work out.
情况5.把if not引导的条件状语从句转化为without短语。
i can’t pass the exam if you don’t help me.→i can’t pass the exam without your help.
情况6.把感官动词（see/hear/watch等）that clause转化为感官动词（see/hear/watch） sth.
i saw that he was playing computer games.→i saw him playing computer games.
she heard that the boy cried all night.→she heard the boy cry all night.
情况 seems that clause转化为seem to do sth.
it seemed that he would catch up with others.→he seemed to catch up with others.
情况8.把so that引导的目的状语从句转化为（in order） to do sth.
she got up early so that she could catch the early bus.→she got up early to catch the early bus.
情况9.定语从句改为分词短语或介词短语。
the question that he asked is easy to answer.→the question asked by him is easy to answer.
the teacher who is wearing glasses teaches us english.→the teacher with/wearing glasses teaches us english.
情况10.祈使句＋and＋简单句→if you…，you’ll…；祈使句＋or＋简单句→if you don’t…， you won’t…
use your head, and you’ll find a way.→if you use your head, you’ll find a way.
work hard, or you won’t pass the exam.→if you don’t work hard, you won’t pass the exam.
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