2. 否定词not与形容词no的区别

解题要点： 区分副词not和形容词no的命题是TOEEL常考的题型，主要分布在structure (1-15题)中。当not或no出现在选择答案中，应首先判断它所修饰的中心词的词性以决定选哪一个否定词。

全真例分析

(1) Since Alaska attained statehood in 1959------- single party has dominated politics there.

(A) none

(B) no

(C) not

(D) never (94.1)

[答案] B 修饰中心名词party应用形容词no，而非副词not。

(2) ------- social crusade aroused Elizabeth Williams enthusiasm more than the expansion of the United States.

(A) No

(B) Nothing

(C) Not

(D) None (91.10)

[答案] 修饰主语名词crusade 应用形容词no. 而非副词not。

(3) ------- all rainwater falling from a cloud reaches the ground， some of it is lost through evaporation.

(A) Nowhere

(B) Not

(C) No

(D) None (91.8)

[答案] B 修饰形容词all应用否定副词not。Not all (不是所有的)是固定短语搭配，表示的是部分否定，not all = sosme。

(4) The mechanism by which brain cells store memories is ------- clearly understood.

(A) none

(B) no