单项填空。
21.One can learn a lot not only__________books but also__________practice.
A.from;from B.in;through
C.on;by D.through;through
22.The girl leaning__________the wall is my sister.
A.against B.for C.on D.from
23.Children need many things,but__________all,they need love.
A.in B.at C.above D.after
24.The slightest touch may send us floating off__________the opposite direction.
A.to B.in C.at D.under
25.Mary was disappointed when she found out they had gone to the ball__________her.
A.except B.except for
C.without D.besides
26.The policeman helped the old woman__________the street.
A.through B.past
C.across D.over
27.Early__________the morning of May 1,we started off__________the mountain village.
A.in;for B.in;to
C.on;/ D.on;for
28.Sports and games can be__________GREat help to us.
A.of B.having C.done D.in
29.Those treasures are now__________show in the Science Museum.
A.for B.at C.to D.on
30.Please retell the story__________your own words.
A.with B.by C.in D.at
参考答案及详解
21.B
22.A。against表“倚,靠”。
23.C
24.B
25.C
26.C
27.A。在某一天的上午、下午或晚上通常用介词on,但这一词组有early或late修饰时,介词用in,不用on。
28.A。这是固定搭配,of+名词=相应的形容词。如of GREat importance=very important。
29.D
30.C
