F.时间错综条件句，动词的形式要根据表示的时间调整。

　　如果我们早动身，现在就不会在雨中走了。

　　If we had set out earlier，we wouldn‘t be walking in the rain.

　　(从句中动作发生在过去，主句中动作发生在现在。)

　　4)动词的非谓语动词形式：

　　A.动词不定式：主要考查动词不定式作定语、宾语、宾语或主语补足语等的用法。还要注意动词不定式的被动式与完成式。

　　不定式作定语：If there is no choice， there is no decision ______(make) to be made

　　不定式作宾语： Robots ， already taking over human tasks in the automotive field， are beginning ________(see) . to be seen

　　不定式作宾补 I notice him _______( leave ) the classroom. leave (可省略to)

　　不定式作主补：They were often compelled ______(work) twelve or fourteen hours a day.

　　to work( 不可省略to)

　　We make them (to) work day and night. 不定式作宾语补语，在有些动词后可以省略TO

　　They are made to work day and night. 不定式作主语补语时，不可省略TO

　　B.分词：主要考查分词作定语、状语、宾语补足语的用法。注意现在分词与过去分词的区别。 另外，还有现在分词的被动式与完成式的形式。

　　分词作定语：Anyone ______(want) to understand the industry of the future will have to know about robotics. wanting

　　As research techniques become more advanced， the number of animals _____(use) in experiments may decrease. used

　　分词作状语： When ______(present) with a common case， sales managers tend to see sales problems and production managers see production problems. presented

　　________ (tell) that some guests were coming ， she shopped all morning in the supermarket. Having been told

　　Her body， with hands and feet _______(bind) ， was discovered by a traveler early in the morning. bound

　　分词做宾补： They may have their passports ______(remove) ， making leaving or “escaping” actually impossible. removed

　　动名词作宾语：If you cannot understand ， ask： “ Would you mind ______(rephrase) the question ， please ？” rephrasing

　　If we don‘t start out now， we must risk ______(miss) the train.

　　missing

　　形容词副词：

　　The more time you waste， the _____(easy) it is to continue wasting time.easier

　　As Jane was the _____(old) ， she looked after the other children in the family. eldest

　　词性转换：

　　The explorers were puzzled over what to do next because they were in a _____(trick)situation .

　　trick是名词或动词，应把它变为形容词tricky

　　These electric appliances are all similar in construction but each one is _____(specialize) in its function.

　　specialize 是动词，应把它变为形容词 specific或 special