20.
A. on
B. off
C. up
D. around
第1题:
A.把控制手柄从OFF(中立)位移到DOWN(放下)位
B.把起落架的液压源从A系统变为备用系统
C.如果控制手柄锁定线圈故障,要把控制手柄移到UP(收上)位
D.为了阻止起落架转换活门工作
第2题:
The word "off-limit" in the passage may mean
A.off-set
B.off-state
C.within limits
D.beyond the limit
第3题:
___________
[A] around
[B] over
[C] on
[D] up
第4题:
A.ON/ON/ON/ON
B.ON/OFF/ON/OFF
C.OFF/ON/OFF/ON
D.OFF/OFF/OFF/OFF
第5题:
[A] up [B] off [C] down [D] on
本题考查短语动词辨析。空格处填入的副词与动词come搭配,其分词形式作后置定语,修饰限定主语the snow。come down指“(雨、雪等)落下,降落”,如:The rain came down in torrents.(大雨滂沱。)因此[C]符合文意,在文中指“大雪飘落”。
come down也可意为“崩塌;(飞机)着陆;(价格、温度、比例)下降;下垂,向下延伸”,如:The ceiling came down.(天花板塌了下来。)Gas is coming down in price.(煤气价格在下降。)come up意为“破土而出;升起;即将发生”,如:The daffodils are just beginning to come up.(水仙花刚开始破土发芽。)watch the sun come up(观看日出)。Her birthday is coming up.(她的生日即将来临。)come off意为“能被去掉或除去;发生;(计划等)成功”,如:That mark won’t come off.(那污点去不掉。)Did the trip to Korea come off?(去韩国的事最后成了吗?)come on意为“改进,发展;开始”,如:The project is coming on fine.(这项工程进展顺利。)I think there’s rain coming on.(我看要下雨了。)
第6题:
A.in, off
B.up, on
C.down, out
D.out, off
第7题:
A. Docking station toggle switches
B. FN keys
C. Remotes
D. Up/down arrows
第8题:
\[A\] for\[B\] up\[C\] off\[D\] on
第9题:
A.ON/ON/ON/ON
B.ON/OFF/ON/OFF
C.OFF/ON/OFF/ON
D.OFF/OFF/OFF/OFF
第10题: