12.The gifted engineer a model of the atomic generator.
A.dragged B.drafted C.drifted D.dratted
[答案与译文]B.那位天才工程师画了一幅原子发电机草图。
[辨析及搭配]A.drag拖;拉。B.draft起草;草拟。draft a plan of study草拟一份研究计划C.drift漂流;飘荡。D.drat(=damn)例句:Drat it!I forgot my key!见鬼(该死)!我忘了钥匙!
13.Mr.Black was in the ,standing there dumbfounded,not knowing what to do.
A.dark B.dusk C.dawn D.dam
[答案与译文]A.布莱克先生不知就里,站在那里目瞪口呆,不知怎么办好。
[辨析及搭配]A.dark黑暗,in the dark在黑暗中;不知情;蒙在鼓里。例句:Parents often keep their children in the dark about their presents on New Years Eve.新年前夕,父母亲常常不让孩子们知道他们的礼物。B.dusk薄暮;黄昏:It is hard to see clearly at dusk.黄昏时难看清楚东西。C.dawn黎明;破晓。例句:They take their boat out every day at dawn.他们每天黎明时起航出海。D.dam大坝。
14.An unexpected guest on us last night.
A.decreased B.declined C.descended D.dropped
[答案与译文]C.昨天晚上,一位不速之客突然来到我们家。
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