任何一个英文句子都离不开主语+动词的结构,如果主语省略形成祈使句,其实就是省略了主语,另语气更重
主语+动词:i am a student(i为主,am为动词);he left.he laughed.ect.(这是完全不及物的句子,后面不加其他句子也能形成)
祈使句:Be quite,这就是省略了(you should )be quite,语气重,可以说don"t cry ,加上don"t就成了否定句
既然我们得知英文句子中,主语和动词都不可或缺,那我们首先是以主语为先,来阐述有哪些可以做主语的
1. 代词:i you he she they it that ,人物:如小明,小红等第三人称,
2. 名词:如desk :desk is mine
3. 不定式做主语:to + 动词 to study (表示目的、有意向的,或者是没有完成的)
To go to shopping is my hobby 爱好是已知的,所以这句话存在漏洞的,但不能说是错误,爱好是有意向的,但具有模糊性
To go to shopping is my plan in this afternoon 意向有目的
4. 动名词做主语:V+ing ,sleeping :sleeping is my hobby
知识梗:
如果不定式或动名词做主语过长时,整体句子容易造成头重脚轻,我们可以用It作为形式主语,放在前,而真正的主语则放在后面,当动名词放后面时则需改成不定式短语(不定式不变)
E. G:动名词designing door handle is one of my profession = it is one of my profession to design door handle
不定式to travel make me happy=it make me happy to travel(动词还是不熟悉,感觉句型有小许问题,下两篇认证)
使用教材例子to study abroad is my greatest desire=it is my greatest desire to study aboard
5. 名词性从句做主语
可概括三大类that 疑问句 weather(一般疑问句,即回答yes no)
That
疑问句:6W1H(6w:whatwhowhenwherewhywhich 1H:how)
A. that:he is my friend Ted 变从句--->that he is my friend Ted
B. weather :be 动词----> is he happy?变从句---->weather he is happy
一般助动词(can, will, may ,should, ought to,must ,have)have i a tool for car repairing? 变从句---->weather i have a toll for car repairing
助动词(do,does ,did)does he go to shopping? 变从句---->weather he does go to shopping--->weather he goes to shopping
C. 疑问句(6w:whatwhowhenwherewhywhich 1H:how)也跟weather相类似的句型变化,但weather是在一般疑问句不出现,转为名词性从句才出现,但疑问句(6W1H)则开始时出现,只是由大写改为小写,另外动词和代词或名词之间调换位置
Be动词What is he doing?变从句----> what he is doing
一般助动词(can,will,may,should,must,need,ought to ,have)what can i do for you变从句----> what i can do for you
助动词do ,does, did what did he write变从句----> what he did write----> what he wrote
如果(6w1h,如果直接做主语的时候,不变)
同样如果名词性从句如果太长,可以形式主语it代替,而他则往后移,在下一篇幅细说,这里不叙说
6. 名词性短语
疑问副词
where to live
weather to try again
how to do it
疑问代词
what to do
whom to see
7. 表距离的from
From +名词 to 名词
以上7种均可以用作主语