③由so…that…引导的结果状语从句可转化为too…to do或…enough to do……例如：

    A：The box is so heavy that I can't carry it.
    B：The box is too heavy for me to carry.
    或：The box isn't light enough for me to carry.

    A：The child is so old that he can go to school.
    B：The child is old enough to go to school.

    ④由so that 引导的目的状语从句可转化为in order to do例如：

    A：My father got up early this morning so that he could catch the early bus.
    B：My father got up early this morning in order to catch the early bus.

    ⑤由because 引导的原因状语从句可转化为because of…例如：

    A：We didn't go to the park because it rained.
    B：We didn't go to the park because of the rain.

    ⑥定语从句可以转化为介词短语或分词短语。例如：

    A：The man who is on the bike is Jim.
    B：The man on the bike is Jim.

    A：The man who is driving the red car is my boss.
    B：The man driving the red car is my boss.

    A：The girl who is called Mary is my sister.
    B：The girl called Mary is my sister.