Ⅰ. no “不”既可作形容詞,又可作副詞。作形容詞時(shí)用來(lái)否定名詞、代詞或動(dòng)名詞。作副詞時(shí),主要用于否定回答。
① The poor boy had no money for books. 那個(gè)窮孩子沒(méi)錢買書。
② No smoking. 禁止吸煙。
③ Isn’t he a teacher? No, he isn’t.
Ⅱ. not “不”只用作副詞。用來(lái)否定動(dòng)詞、不定式、形容詞或副詞。通常放在“三類詞”(情態(tài)動(dòng)詞,助動(dòng)詞,系動(dòng)詞)之后,行為動(dòng)詞之前。否定不定式時(shí),直接放在不定式的小品詞to前。如:
① I have not been to Beijing.
② He doesn’t like reading.
▲ no 和not 都可與形容詞或副詞的比較級(jí)連用,但句子的含義不同。如:
① I am no taller than he. 我不比他高。(兩人都矮)
② I am not taller than he. 我不比他更高。(兩人都高)
▲ no = not a 或not any 如:
① She has no books = She doesn’t have a book. = She does not have any books.
▲ no 表示它所修飾的名詞的相反的意思。而not只能表示一般的否定。如:
① He is no teacher. 他根本(絕)不是老師。(不善于教書)
② He is not a teacher. 他不是老師。(可能是其它職業(yè))
③ He is no fool = He is clever. 他不笨(他是聰明的)
④ He is not a fool. 他不是個(gè)傻子。
① The poor boy had no money for books. 那個(gè)窮孩子沒(méi)錢買書。
② No smoking. 禁止吸煙。
③ Isn’t he a teacher? No, he isn’t.
Ⅱ. not “不”只用作副詞。用來(lái)否定動(dòng)詞、不定式、形容詞或副詞。通常放在“三類詞”(情態(tài)動(dòng)詞,助動(dòng)詞,系動(dòng)詞)之后,行為動(dòng)詞之前。否定不定式時(shí),直接放在不定式的小品詞to前。如:
① I have not been to Beijing.
② He doesn’t like reading.
▲ no 和not 都可與形容詞或副詞的比較級(jí)連用,但句子的含義不同。如:
① I am no taller than he. 我不比他高。(兩人都矮)
② I am not taller than he. 我不比他更高。(兩人都高)
▲ no = not a 或not any 如:
① She has no books = She doesn’t have a book. = She does not have any books.
▲ no 表示它所修飾的名詞的相反的意思。而not只能表示一般的否定。如:
① He is no teacher. 他根本(絕)不是老師。(不善于教書)
② He is not a teacher. 他不是老師。(可能是其它職業(yè))
③ He is no fool = He is clever. 他不笨(他是聰明的)
④ He is not a fool. 他不是個(gè)傻子。