(2) 過去式助動詞(Did):
Do , Does因受時間改變(限定)而變化為Did,Did 卻不再隨主詞的人稱、數量不同而變化。肯定句中通常隱藏不寫,肯定句中若寫出助動詞則表示加強動詞的語氣;否定時did not可縮寫成didn’t。
We studied English yesterday. --------(過去式肯定句)
We didn’t study English yesterday. --(過去式否定句)
Did you study English yesterday? ----(過去式疑問句)
What did you study yesterday? --------(過去式疑問句)
Who studied English? (主詞問句不用助動詞,即直述形)
I did do that = I really did that = I did that indeed
I do love you = I really love you = I love you indeed
解析 助動詞出現於肯定句,表示加強動詞的語氣;really,indeed為副詞really可置句中、句尾,indeed通常僅置句尾。
對等連接詞的子句中,簡答句,倒裝簡答句,僅用助動詞表達之。
我姊姊比我還用功
My sister studies harder than I (do).
是誰打破花瓶? John打破的,不是我
Who broke the vase?…..John did, not me.(簡答句)
那是你自己做的嗎? 是的
Did you do that on your own?…Yes, I did. = So I did.(勿誤為So did I)
那是你自己做的嗎? 不是
Did you do that on your own?… No, I didn’t. (簡答句)
他喜好黑咖啡,而我也是
He likes black coffee, and I do, too. (簡答句)
He likes black coffee, and I also do. (簡答句)
He likes black coffee, and so do I. (倒裝簡答句)
他不喜好黑咖啡,而我也不喜歡
He doesn’t like black coffee, and I don’t, either. (簡答句)
= He doesn’t like black coffee, and I also don’t. (簡答句)
= He doesn’t like black coffee, and neither(nor) do I. (倒裝簡答句)
解析 以助動詞代替動詞及動詞以後與前句相同的部分。
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