-
謂詞
鎖定
謂詞簡介
例如:
"貓是動物"一句中的"是"就是一個謂詞,而"貓"是客體。
"3 大於 2"中"大於"是一個謂詞。
謂詞常項
表示某個確定判定的謂詞稱為謂詞常項。如上述兩個謂詞"是"、"大於"。
謂詞變項
尚未確定的謂詞稱為謂詞變項。例如用 P(3,2)記一個謂詞變項,可以表示 "3 大於 2"、"3 小於 2"等等。
n 元謂詞
在一個命題中,若有 n 個客體名稱與謂詞相聯繫,則稱該謂詞為 n 元謂詞。
如上述"是動物"為一元謂詞,因為只有"貓"這一個客體與之相聯繫。
而命題“3 大於 2”中的謂詞“大於”與兩個客體聯結,是一個二元謂詞。
謂詞詳細釋義
謂語是對主語的陳述或説明,指出“做什麼”、“是什麼”或“怎麼樣.
I made your birthday cake last night. (一般過去時主動語態)
It is used by travellers and business people all over the world. (一般現在時被動語態)
複合謂語也可分為兩種情況:
What does this word mean?
I won’t do it again.
I’ll go and move away the bag of rice with Lin Tao.
You’d better catch a bus.
You look the same.
We are all here.
The weather gets warmer, and the days get longer.
Keep quite and listen to me.
He looked worried.
We have to be up early in the moming.
Is Bill in?
School Is over. Let’s go home.
My pen is in my bag.
I feel terrible.
I* fell tried all the time.
He seemed rather tired last night.
連繫動詞和表語在意思上緊密聯繫,不宜分割;有關動詞的種類這方面知識在課本中已有介紹,此處不多説了。