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do是什么词 用法有哪些

时间:2020-10-29 23:21:00

  do读音是 [duː,də,dəʊ] ,具有多种词性和词义。构成疑问句和否定句。代替动词。用于加强语气。有做、干、进行、表现、的确等意思。

do词性

  do是用于一般现在时的助动词,did则是用于一般过去时的助动词。done是do的过去分词。do还有实义动词(有实在意义的动词)的解释:做,干,等。口语中,do 的否定式通常用缩写形式。例如,do not 略作dont,did not 略作didnt。助动词无法与be动词、动词原形一同使用。

do的用法

  1. do用于一般现在时

  例句:I often do my homework in the evening.

  2. does用于第三人称单数的一般现在时

  例句:He does his lessons every day.

  3. did用于一般过去时

  例句:They did homework yesterday.

  4. doing常用于现在进行时或者非谓语动词(暂时不提)

  例句:He is doing his homework now.

  5. done 常用于完成时,被动态或者非谓语动词(暂时不提)

  例句:

  He has done his homework.

  He had done his homework before he went out.

  His homework is done.

  作为助动词,常用于疑问句和否定句。

  1. 一般疑问句

  例句:Do you like English?

  2. 选择疑问句

  例句:Does he go to school by bus or by bike?

  3. 特殊疑问句

  例句:How do you go to school?

  4. 反义疑问句

  例句:You like English, dont you?

  5. 否定句

  例句:I dont like English.

  另外,也可以用于表示强调, 此时需要重读。

  例句:He does need your help. (does重读,强调确实需要帮助)

  还有,也可以代替其他的动词,使句子更简练。

  例句:

  Who cleaned the windows?

  Tom did.

do开头的词组

  do a good deed 做一件好事

  do away with 去掉,废除;弄死;浪费

  do by 对待

  do for a living 为了生计而做

  do good to (=do sb good) 有益于

  do harm to (=do sb harm) 有害于

  do in 使精疲力竭

  do it all 服无期徒刑;多才多艺;包办一切

  do it up [美国俚语]干净利落

  do its work 有效,有作用

  do much 极有用

  do one’s best 尽某人最大努力

  以上就是小编整理的do的相关知识点,希望对你有所帮助。

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