初中英语语法之名词词组与动名词

在英语的学习中同学们不单单需要记忆单词，还需要对词语的用法进行掌握。下面学大为大家提供的是初中英语语法之名词词组与动名词，希望同学们在英语的学习中全面的掌握词语的用法，打好英语学习的基础。

一,作主语

⒈不定式作主语

动词不定式作主语时,句子的谓语动词常用单数,其位置有以下两种:

(1)把不定式置于句首.如:

To get there by bike will take us half an hour.

(2)用it作形式主语,把真正的主语不定式置于句后,常用于下列句式中.如:

①It+be+名词+to do

It's our duty to take good care of the old.

②It takes sb + some time +to do

How long did it take you to finish the work

③It+be+形容词+for sb +to do

It is difficult for us to finish writing the composition in a quarter of an hour.

④It+be+形容词+of sb +to do

It is stupid of you to write down everything the teacher says.

⑤It seems(appears)+形容词+to do

It seemed impossible to save money.

在句型③中,常用表示客观情况的形容词,如:difficult,easy,hard,important,impossible,necessary 等;在句型④中,常用careless,clever,good,foolish,honest,kind,lazy,nice,right,silly,stupid,wise等 表示赞扬或批评的词.在不定式前的sb,可看作其逻辑主语.这一句式有时相当于Sb is+形容词+to do句式 ,如:It's kind of you to help me with my English.=You are kind to help me with my English.

⒉动名词作主语

Learning without practice is no good.

动名词作主语时,也常用It句式.如:

①It's +no good(no use,fun,a pleasure,a waste of time)+doing…

It's no good reading in dim light.

It's no use sitting here waiting.

②It's+形容词+doing

It's dangerous swimming in the sea in windy days.

这样用的形容词有expensive,nice,tiring等,但important,necessary则不适用于这种结构,应用不定式 代替,如:It's important for you to keep fit.

③There is no + doing

There is no saying what will happen next.

在这一结构中,动名词后常带宾语,相当于"It's impossible to…"结构.

⒊动词不定式和动名词作主语的区别

①不定式作主语经常表示具体动作,常与特定的动作执行者联系在一起;而动名词作主语经常表示抽象动 作,经常不与特定的动作执行者联系在一起.如:

It's no good eating too much

在英语的学习中掌握词语的用法是关键，上文学大为大家提供的是初中英语语法之名词词组与动名词，希望同学们能够了解，取得好成绩。