用knock的相关短语填空。
(1)These old houses are to be__________.
(2)I often help my grandpa to__________his pipe (烟斗)．
(3)On the way to work, he was__________by a car.
(4)It is good manners to__________the door before you get in.
知识点：英语
(1)knocked down (2)knock out (3)knocked over (4)knock on/at
对比填空
用abandon, desert或quit的适当形式填空。
(1)The villages had been__________.
(2)They had to__________their lands and property to the invading forces.
(3)He__________the show last year because of bad health.
(4)Snow forced many drivers to__________their vehicles.
知识点：英语
(1)deserted (2)abandon (3)quit (4)abandon
Some of the old________about the space age are coming true.
A. fantasies B. delusions
C. nightmares D. impressions
知识点：英语
A
句意：一些有关太空时代的古老幻想正在变成现实。fantasy“幻想”，尤其指脱离现实的空想； delusion“错觉”。
He abandoned himself to________computer games, ________made his mother worried.
A. play; which B. playing; which
C. play; that D. playing; that
知识点：英语
B
句意：他沉溺于电脑游戏的这件事使他母亲非常担心。第一空应为：abandon oneself to doing sth.；第二空为一个非限定性定语从句，用which引导。
It is said that a person________with the Democrats has been accused of being a spy.
A. to identify B. identified
C. identifying D. identify
知识点：英语
B
句意：据称，一位与民主党关系密切的人被指控是间谍。be identified with ...“与……有密切关系”，这里用过去分词短语作定语，修饰person。
He is the only one of the students who________a winner of scholarship for years.
A. is B. was
C. have been D. has been
知识点：英语
D
先行词who指代the only one of the students，为单数形式，故排除C项；由for years可知需用现在完成时，故选项D正确。