問句裡的原形動詞helped

2012-07-25 8:32 am
我想知道為何下面問句的原形動詞要+ed

Q : Who helped the old lady ?

回答 (5)

2012-07-26 4:15 am
✔ 最佳答案
雖然已有很多人給予答案,但也想在這裏與大家交流一下

首先helped絕對不是原形動詞
發問者之所以覺得問題中的必是原形動詞,是因為很多的問句是以以下的形式發問:

What do you want?
How much did you pay?
How much does the room cost?
What did she want?

這種問句的形式是 :疑問詞+助動詞+主詞+原形動詞

但當疑問詞是主語是,一般就不能用do或did
如:
Who said that? (who是主語)

請留意
Who did you invite?(who是賓語,所以用did)

就因為Who helped the lady?的who是主語,故不能寫成Who did help the lady?
因此不能用上did,此時,要表達時間性,就得以在主動詞help裏表達

希望幫到你!
2012-07-25 11:18 pm
Q : Who helped the old lady ? = simple past tense
Mary helped the old lady.

Q who helps the old lady? = simple present tense
Mary helps the lad lady.

Q. Did Mary help the old lady? = simple past tense
Yes, Mary helped the old lady.

Q. Does Mary help the old lady? = simple present tense
Yes, Mary helps the old lady.
2012-07-25 6:42 pm
不是所有過去式問句中的原形動詞都是不用轉的,衹有用Did開始才是,因為Did已表示了過去式。
Who helped the old lady?沒有Did,所以要用過去式helped表示過去式。
2012-07-25 2:56 pm
這樣的問題也要問, 你真的要好好哋讀書!
2012-07-25 8:47 am
simple past tense, "help the old lady" 這件事在過去發生,

-誰幫助了那位老婦人?

2012-07-25 19:00:19 補充:
其實不管是問句或者是陳述句, 如果句字中有 modal verb 或者 auxiliary verb, 那麼轉成過去式時 只需將 modal verb 或 auxiliary verb 轉成過去式, 而原形動詞則不用轉.

所以問句中如果有 助動詞 do, 則轉為過去式時只需將do轉成did, 而原形動詞不用轉.
如果沒有 do 或其他auxiliary verbs, 則必須將原形動詞轉為過去式.


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